When can I use all 8gigs of my memory MS???

  • Thread starter Thread starter Defjr
  • Start date Start date
Re: When can I use all 8gigs of my memory MS???

Best thing to do, is look up the specs for the ram, at the rated speed will
be running.

For instance, my 4gb of Corsair Dominators PC8500, are rated to run 1066 mhz
at 2.1v, at 800 mhz they are rated to run at 1.8v.

I have been running 4 sticks, at the 1066 mhz speed, in my 780i MB, with no
issue. Actually, the EPP recognizes them at 2.2v, so I pretty much leave it
there since I am running 4 sticks.
The timings, for running 1066 mhz, are spec'd at 5-5-5-15-2t, for 800 mhz
more like 4-4-4-12-2t. On some motherboards, like Nvidia, you can enable sli
ready ram, and it should read the EPP and automatically set these.
If not, then you can manually go in and set the timings and voltage, per
mfg's ram spec.



--
Don



"Colin Barnhorst" <c.barnhorst@comcast.net> wrote in message
news:1C234A62-9373-4F91-BA19-6E2DC9466965@microsoft.com...
> The recommendation is one tenth of a volt. I have seen cautions not to
> exceed this.
>
> "Charlie Russel - MVP" <charlie@mvKILLALLSPAMMERSps.org> wrote in message
> news:611AFFFB-AE46-42F1-8751-81BEFEB43AB8@microsoft.com...
>>I had an interesting discussion with a tech at a major online retailer on
>>this. He said that several major mobos have this problem, but that upping
>>the voltage to the memory stabilizes them. They've seen a lot of this. So
>>if you have a mobo with the problem, try going into the BIOS and tweaking
>>up the voltage to the RAM. It won't solve it for all of them, but it does
>>for some.
>>
>> --
>> Charlie.
>> http://msmvps.com/xperts64
>> http://mvp.support.microsoft.com/profile/charlie.russel
>>
>>
>> "Colin Barnhorst" <c.barnhorst@comcast.net> wrote in message
>> news:F09BD4DC-D624-4AA9-B161-0D38409A7E4C@microsoft.com...
>>> It isn't the amount of ram. It is the number of memory sticks. Its the
>>> fourth stick that is an issue with some mobos. Four sticks at 667 seems
>>> to work but not 800.
>>>
>>> <miso@sushi.com> wrote in message
>>> news:a8ce643b-2941-4fbd-b746-994870092a47@s13g2000prd.googlegroups.com...
>>>> On Mar 30, 3:48 pm, Defjr <De...@discussions.microsoft.com> wrote:
>>>>> I would like a date that MS is going to have the +4 gigs of RAM issue
>>>>> fixed
>>>>> on Vista Ultimate 64. Anyone have any info, as MS doesnt say a word? I
>>>>> have a
>>>>> sweet machine that works beautifully......................If you
>>>>> discount the
>>>>> 8g RAM bug. I have all Vista 64 Certified components, and untill I ran
>>>>> into
>>>>> this problem, there was no for-warning from MS. Its like if they
>>>>> ignore the
>>>>> problem it will just go away. IM NOT GOING AWAY BILL GATES!! FIX YOUR
>>>>> S@#T!!!!!
>>>>
>>>> Bios memory remap.
>>>>
>>>> This 4 and 8 G talk doesn't make much sense. If you can't do 4, you
>>>> can't do 8.
>>>
>>
>
 
Re: When can I use all 8gigs of my memory MS???

Well, it's nothing I'm likely to tweak if I can avoid it, but I certainly
see a bunch of folks who routinely run a bit more than that, trying to
extract the last possible bit of performance out of their machine.
Personally, on my one machine that has the issue, I've just ordered a pair
of 1GB DIMMs for it, since I had 4x512's in it. It's just a Windows Home
Server box, it doesn't need more than 2GB. Actually probably OK at 1GB, but
it seemed a bit tight, so...

--
Charlie.
http://msmvps.com/blogs/xperts64
http://mvp.support.microsoft.com/profile/charlie.russel


"Colin Barnhorst" <c.barnhorst@comcast.net> wrote in message
news:1C234A62-9373-4F91-BA19-6E2DC9466965@microsoft.com...
> The recommendation is one tenth of a volt. I have seen cautions not to
> exceed this.
>
> "Charlie Russel - MVP" <charlie@mvKILLALLSPAMMERSps.org> wrote in message
> news:611AFFFB-AE46-42F1-8751-81BEFEB43AB8@microsoft.com...
>>I had an interesting discussion with a tech at a major online retailer on
>>this. He said that several major mobos have this problem, but that upping
>>the voltage to the memory stabilizes them. They've seen a lot of this. So
>>if you have a mobo with the problem, try going into the BIOS and tweaking
>>up the voltage to the RAM. It won't solve it for all of them, but it does
>>for some.
>>
>> --
>> Charlie.
>> http://msmvps.com/xperts64
>> http://mvp.support.microsoft.com/profile/charlie.russel
>>
>>
>> "Colin Barnhorst" <c.barnhorst@comcast.net> wrote in message
>> news:F09BD4DC-D624-4AA9-B161-0D38409A7E4C@microsoft.com...
>>> It isn't the amount of ram. It is the number of memory sticks. Its the
>>> fourth stick that is an issue with some mobos. Four sticks at 667 seems
>>> to work but not 800.
>>>
>>> <miso@sushi.com> wrote in message
>>> news:a8ce643b-2941-4fbd-b746-994870092a47@s13g2000prd.googlegroups.com...
>>>> On Mar 30, 3:48 pm, Defjr <De...@discussions.microsoft.com> wrote:
>>>>> I would like a date that MS is going to have the +4 gigs of RAM issue
>>>>> fixed
>>>>> on Vista Ultimate 64. Anyone have any info, as MS doesnt say a word? I
>>>>> have a
>>>>> sweet machine that works beautifully......................If you
>>>>> discount the
>>>>> 8g RAM bug. I have all Vista 64 Certified components, and untill I ran
>>>>> into
>>>>> this problem, there was no for-warning from MS. Its like if they
>>>>> ignore the
>>>>> problem it will just go away. IM NOT GOING AWAY BILL GATES!! FIX YOUR
>>>>> S@#T!!!!!
>>>>
>>>> Bios memory remap.
>>>>
>>>> This 4 and 8 G talk doesn't make much sense. If you can't do 4, you
>>>> can't do 8.
>>>
>>
>
 
Re: When can I use all 8gigs of my memory MS???

On one of my boards, I had to lower the voltage to get the memory to run
stable. In yet another, I have 1066 memory in a board that supports 1066
memory, but I have to run it at 800 because I can't figure out how to make
it stable at 1066. Go figure....

"Colin Barnhorst" <c.barnhorst@comcast.net> wrote in message
news:1C234A62-9373-4F91-BA19-6E2DC9466965@microsoft.com...
> The recommendation is one tenth of a volt. I have seen cautions not to
> exceed this.
>
> "Charlie Russel - MVP" <charlie@mvKILLALLSPAMMERSps.org> wrote in message
> news:611AFFFB-AE46-42F1-8751-81BEFEB43AB8@microsoft.com...
>>I had an interesting discussion with a tech at a major online retailer on
>>this. He said that several major mobos have this problem, but that upping
>>the voltage to the memory stabilizes them. They've seen a lot of this. So
>>if you have a mobo with the problem, try going into the BIOS and tweaking
>>up the voltage to the RAM. It won't solve it for all of them, but it does
>>for some.
>>
>> --
>> Charlie.
>> http://msmvps.com/xperts64
>> http://mvp.support.microsoft.com/profile/charlie.russel
>>
>>
>> "Colin Barnhorst" <c.barnhorst@comcast.net> wrote in message
>> news:F09BD4DC-D624-4AA9-B161-0D38409A7E4C@microsoft.com...
>>> It isn't the amount of ram. It is the number of memory sticks. Its the
>>> fourth stick that is an issue with some mobos. Four sticks at 667 seems
>>> to work but not 800.
>>>
>>> <miso@sushi.com> wrote in message
>>> news:a8ce643b-2941-4fbd-b746-994870092a47@s13g2000prd.googlegroups.com...
>>>> On Mar 30, 3:48 pm, Defjr <De...@discussions.microsoft.com> wrote:
>>>>> I would like a date that MS is going to have the +4 gigs of RAM issue
>>>>> fixed
>>>>> on Vista Ultimate 64. Anyone have any info, as MS doesnt say a word? I
>>>>> have a
>>>>> sweet machine that works beautifully......................If you
>>>>> discount the
>>>>> 8g RAM bug. I have all Vista 64 Certified components, and untill I ran
>>>>> into
>>>>> this problem, there was no for-warning from MS. Its like if they
>>>>> ignore the
>>>>> problem it will just go away. IM NOT GOING AWAY BILL GATES!! FIX YOUR
>>>>> S@#T!!!!!
>>>>
>>>> Bios memory remap.
>>>>
>>>> This 4 and 8 G talk doesn't make much sense. If you can't do 4, you
>>>> can't do 8.
>>>
>>
>
 
Re: When can I use all 8gigs of my memory MS???

Out of curiousity, I dug out the manual for my Asus M2N32-SLI - it actually
has a table of memory products that describes what brands and serial numbers
supports 800Mhz in how many slots.

That table is probably seriously out of date by now, but it shows how tight
the specifications my actually be. I think this is well worth to notice (and
remember!).


Tony. . .


"Colin Barnhorst" <c.barnhorst@comcast.net> wrote in message
news:1C234A62-9373-4F91-BA19-6E2DC9466965@microsoft.com...
> The recommendation is one tenth of a volt. I have seen cautions not to
> exceed this.
>
> "Charlie Russel - MVP" <charlie@mvKILLALLSPAMMERSps.org> wrote in message
> news:611AFFFB-AE46-42F1-8751-81BEFEB43AB8@microsoft.com...
> >I had an interesting discussion with a tech at a major online retailer on
> >this. He said that several major mobos have this problem, but that upping
> >the voltage to the memory stabilizes them. They've seen a lot of this. So
> >if you have a mobo with the problem, try going into the BIOS and tweaking
> >up the voltage to the RAM. It won't solve it for all of them, but it does
> >for some.
> >
> > --
> > Charlie.
> > http://msmvps.com/xperts64
> > http://mvp.support.microsoft.com/profile/charlie.russel
> >
> >
> > "Colin Barnhorst" <c.barnhorst@comcast.net> wrote in message
> > news:F09BD4DC-D624-4AA9-B161-0D38409A7E4C@microsoft.com...
> >> It isn't the amount of ram. It is the number of memory sticks. Its
the
> >> fourth stick that is an issue with some mobos. Four sticks at 667
seems
> >> to work but not 800.
> >>
> >> <miso@sushi.com> wrote in message
> >>
news:a8ce643b-2941-4fbd-b746-994870092a47@s13g2000prd.googlegroups.com...
> >>> On Mar 30, 3:48 pm, Defjr <De...@discussions.microsoft.com> wrote:
> >>>> I would like a date that MS is going to have the +4 gigs of RAM issue
> >>>> fixed
> >>>> on Vista Ultimate 64. Anyone have any info, as MS doesnt say a word?
I
> >>>> have a
> >>>> sweet machine that works beautifully......................If you
> >>>> discount the
> >>>> 8g RAM bug. I have all Vista 64 Certified components, and untill I
ran
> >>>> into
> >>>> this problem, there was no for-warning from MS. Its like if they
ignore
> >>>> the
> >>>> problem it will just go away. IM NOT GOING AWAY BILL GATES!! FIX YOUR
> >>>> S@#T!!!!!
> >>>
> >>> Bios memory remap.
> >>>
> >>> This 4 and 8 G talk doesn't make much sense. If you can't do 4, you
> >>> can't do 8.
> >>
> >
>
 
Re: When can I use all 8gigs of my memory MS???

And it corresponds to the test reports on the website. I suspect that folks
look there for the memory products that are supported but fail to notice how
much was tested. I know I didn't take that seriously enough and learned the
hard way not to assume that just finding the specs for the ram I wanted to
use did not mean that I could fill all the slots with it without taking
further steps to get it working.

"Tony Sperling" <tony.sperling@dbREMOVEmail.dk> wrote in message
news:eMsmhfxlIHA.4076@TK2MSFTNGP05.phx.gbl...
> Out of curiousity, I dug out the manual for my Asus M2N32-SLI - it
> actually
> has a table of memory products that describes what brands and serial
> numbers
> supports 800Mhz in how many slots.
>
> That table is probably seriously out of date by now, but it shows how
> tight
> the specifications my actually be. I think this is well worth to notice
> (and
> remember!).
>
>
> Tony. . .
>
>
> "Colin Barnhorst" <c.barnhorst@comcast.net> wrote in message
> news:1C234A62-9373-4F91-BA19-6E2DC9466965@microsoft.com...
>> The recommendation is one tenth of a volt. I have seen cautions not to
>> exceed this.
>>
>> "Charlie Russel - MVP" <charlie@mvKILLALLSPAMMERSps.org> wrote in message
>> news:611AFFFB-AE46-42F1-8751-81BEFEB43AB8@microsoft.com...
>> >I had an interesting discussion with a tech at a major online retailer
>> >on
>> >this. He said that several major mobos have this problem, but that
>> >upping
>> >the voltage to the memory stabilizes them. They've seen a lot of this.
>> >So
>> >if you have a mobo with the problem, try going into the BIOS and
>> >tweaking
>> >up the voltage to the RAM. It won't solve it for all of them, but it
>> >does
>> >for some.
>> >
>> > --
>> > Charlie.
>> > http://msmvps.com/xperts64
>> > http://mvp.support.microsoft.com/profile/charlie.russel
>> >
>> >
>> > "Colin Barnhorst" <c.barnhorst@comcast.net> wrote in message
>> > news:F09BD4DC-D624-4AA9-B161-0D38409A7E4C@microsoft.com...
>> >> It isn't the amount of ram. It is the number of memory sticks. Its
> the
>> >> fourth stick that is an issue with some mobos. Four sticks at 667
> seems
>> >> to work but not 800.
>> >>
>> >> <miso@sushi.com> wrote in message
>> >>
> news:a8ce643b-2941-4fbd-b746-994870092a47@s13g2000prd.googlegroups.com...
>> >>> On Mar 30, 3:48 pm, Defjr <De...@discussions.microsoft.com> wrote:
>> >>>> I would like a date that MS is going to have the +4 gigs of RAM
>> >>>> issue
>> >>>> fixed
>> >>>> on Vista Ultimate 64. Anyone have any info, as MS doesnt say a word?
> I
>> >>>> have a
>> >>>> sweet machine that works beautifully......................If you
>> >>>> discount the
>> >>>> 8g RAM bug. I have all Vista 64 Certified components, and untill I
> ran
>> >>>> into
>> >>>> this problem, there was no for-warning from MS. Its like if they
> ignore
>> >>>> the
>> >>>> problem it will just go away. IM NOT GOING AWAY BILL GATES!! FIX
>> >>>> YOUR
>> >>>> S@#T!!!!!
>> >>>
>> >>> Bios memory remap.
>> >>>
>> >>> This 4 and 8 G talk doesn't make much sense. If you can't do 4, you
>> >>> can't do 8.
>> >>
>> >
>>
>
>
 
Re: When can I use all 8gigs of my memory MS???

You are absolutely right, Colin - the section of the manual that describes
the memory support clearly states, and in several places, that the board
supports up to 8GB 800Mhz - only in that table is it shown that you need
specific quality units to have it support more than two slots of up to 2GB
each! So, true enough, but a low precision form of truth, perhaps.

I will commit Charlie's [acquired?] Voltage trick to my own personal and
frightfully slow memory, one fine day it may solve an 'issue'?


Tony. . .


"Colin Barnhorst" <c.barnhorst@comcast.net> wrote in message
news:D09CC028-53AE-4A4C-804C-C9706A1591C0@microsoft.com...
> And it corresponds to the test reports on the website. I suspect that
folks
> look there for the memory products that are supported but fail to notice
how
> much was tested. I know I didn't take that seriously enough and learned
the
> hard way not to assume that just finding the specs for the ram I wanted to
> use did not mean that I could fill all the slots with it without taking
> further steps to get it working.
>
> "Tony Sperling" <tony.sperling@dbREMOVEmail.dk> wrote in message
> news:eMsmhfxlIHA.4076@TK2MSFTNGP05.phx.gbl...
> > Out of curiousity, I dug out the manual for my Asus M2N32-SLI - it
> > actually
> > has a table of memory products that describes what brands and serial
> > numbers
> > supports 800Mhz in how many slots.
> >
> > That table is probably seriously out of date by now, but it shows how
> > tight
> > the specifications my actually be. I think this is well worth to notice
> > (and
> > remember!).
> >
> >
> > Tony. . .
> >
> >
> > "Colin Barnhorst" <c.barnhorst@comcast.net> wrote in message
> > news:1C234A62-9373-4F91-BA19-6E2DC9466965@microsoft.com...
> >> The recommendation is one tenth of a volt. I have seen cautions not to
> >> exceed this.
> >>
> >> "Charlie Russel - MVP" <charlie@mvKILLALLSPAMMERSps.org> wrote in
message
> >> news:611AFFFB-AE46-42F1-8751-81BEFEB43AB8@microsoft.com...
> >> >I had an interesting discussion with a tech at a major online retailer
> >> >on
> >> >this. He said that several major mobos have this problem, but that
> >> >upping
> >> >the voltage to the memory stabilizes them. They've seen a lot of this.
> >> >So
> >> >if you have a mobo with the problem, try going into the BIOS and
> >> >tweaking
> >> >up the voltage to the RAM. It won't solve it for all of them, but it
> >> >does
> >> >for some.
> >> >
> >> > --
> >> > Charlie.
> >> > http://msmvps.com/xperts64
> >> > http://mvp.support.microsoft.com/profile/charlie.russel
> >> >
> >> >
> >> > "Colin Barnhorst" <c.barnhorst@comcast.net> wrote in message
> >> > news:F09BD4DC-D624-4AA9-B161-0D38409A7E4C@microsoft.com...
> >> >> It isn't the amount of ram. It is the number of memory sticks. Its
> > the
> >> >> fourth stick that is an issue with some mobos. Four sticks at 667
> > seems
> >> >> to work but not 800.
> >> >>
> >> >> <miso@sushi.com> wrote in message
> >> >>
> >
news:a8ce643b-2941-4fbd-b746-994870092a47@s13g2000prd.googlegroups.com...
> >> >>> On Mar 30, 3:48 pm, Defjr <De...@discussions.microsoft.com> wrote:
> >> >>>> I would like a date that MS is going to have the +4 gigs of RAM
> >> >>>> issue
> >> >>>> fixed
> >> >>>> on Vista Ultimate 64. Anyone have any info, as MS doesnt say a
word?
> > I
> >> >>>> have a
> >> >>>> sweet machine that works beautifully......................If you
> >> >>>> discount the
> >> >>>> 8g RAM bug. I have all Vista 64 Certified components, and untill I
> > ran
> >> >>>> into
> >> >>>> this problem, there was no for-warning from MS. Its like if they
> > ignore
> >> >>>> the
> >> >>>> problem it will just go away. IM NOT GOING AWAY BILL GATES!! FIX
> >> >>>> YOUR
> >> >>>> S@#T!!!!!
> >> >>>
> >> >>> Bios memory remap.
> >> >>>
> >> >>> This 4 and 8 G talk doesn't make much sense. If you can't do 4, you
> >> >>> can't do 8.
> >> >>
> >> >
> >>
> >
> >
>
 
RE: When can I use all 8gigs of my memory MS???

First off, I want to say thank you to all of you who have replied, and
especially Mr Russell. I did not intend to come off as yelling at you guys,
but MS. Now then, I used the voltage "trick" and now all seems to be well
with 1 exception:
On the Vista compatibility page of this website it lists the Hauppauge
PVR150MCE/ PVR500MCE tuner as Compliant, and works with 64 bit, and it
does.....if you have less than 4 gigs of memory(why that magic number keeps
showing up is beyond me). Hauppauge says they will not be looking into the
problem anytime soon, as they are working on their "new" product line, but
has offered to RMA the card for a new model that will work(all beit a single
tuner model).
The reason I have been upset with MS is due to the way they hand out the
logo of works/ certified for Vista without requiring the manufacturer to show
the actual test. In this example they would have seen Hauppauge did the
origonal test for the logo on that product with only 512M of RAM?!?! Who in
the world would use a 64bit OS with that low of RAM? Isnt the whole purpose
of 64 bit for more memory allocations? Anyone know why you cant install Vista
64 with more than 2 gigs of RAM to start? I origonally attempted installing
with 8, then 6, then 4, and finally successfull with 2. Upon installing SP1 I
could then re-install the memory and moved the voltage up as suggested and
all worked fine?!?
Again thanks to those who sent in sugestions, and hopefully this will all be
done soon.
 
RE: When can I use all 8gigs of my memory MS???


In case anyone was wondering the specs:

EVGA 780i mobo
Intel core 2 Quad Q6600
Corsair 2x 2048 XMS PC6400 @800Mhz RAM per kit(2 kits)
2 Raptor 150 HDDs in Raid 0
EVGA 9800 GX2 GPU
Audigy 2 ZS Platinum sound
Toughpower 1200W PSU
Hauppauge PVR500MCE (does not work without disabling memory)
Pioneer BD/DVD/CD multi drive (cant remember the model)
All liquid cooled CPU, GPU, HDDs, RAM, with no overclocking
 
Re: When can I use all 8gigs of my memory MS???



"Defjr" <Defjr@discussions.microsoft.com> wrote in message
news:40B437F3-D856-4A95-AB63-B93D7BCF536A@microsoft.com...
> First off, I want to say thank you to all of you who have replied, and
> especially Mr Russell. I did not intend to come off as yelling at you
> guys,
> but MS. Now then, I used the voltage "trick" and now all seems to be well
> with 1 exception:
> On the Vista compatibility page of this website it lists the Hauppauge
> PVR150MCE/ PVR500MCE tuner as Compliant, and works with 64 bit, and it
> does.....if you have less than 4 gigs of memory(why that magic number
> keeps
> showing up is beyond me). Hauppauge says they will not be looking into the
> problem anytime soon, as they are working on their "new" product line, but
> has offered to RMA the card for a new model that will work(all beit a
> single
> tuner model).
> The reason I have been upset with MS is due to the way they hand out the
> logo of works/ certified for Vista without requiring the manufacturer to
> show
> the actual test. In this example they would have seen Hauppauge did the
> origonal test for the logo on that product with only 512M of RAM?!?! Who
> in
> the world would use a 64bit OS with that low of RAM? Isnt the whole
> purpose
> of 64 bit for more memory allocations? Anyone know why you cant install
> Vista
> 64 with more than 2 gigs of RAM to start? I origonally attempted
> installing
> with 8, then 6, then 4, and finally successfull with 2. Upon installing
> SP1 I
> could then re-install the memory and moved the voltage up as suggested and
> all worked fine?!?
> Again thanks to those who sent in sugestions, and hopefully this will all
> be
> done soon.


I installed Vista Ultimate 64 bit, with 4 sticks of 1gb each Corsair PC8500
ram, in my EVGA 780i mb, with no problems. ( Prior to SP1 ).

Not sure why some have a problem, and some don't, but I can say it worked
fine for me.

--
Don
 
Re: When can I use all 8gigs of my memory MS???

I don't think most regulars here loose much sleep if someone is yelling on
occasion, this is an unusually reasonable and level-headed community with a
direct aim at helping out. What isn't the best approach, is starting out
yelling "MS bug!" over something that MS clearly has no control over - and
this isn't even that we are in any significant way pre-determined for
protectiveness towards MS, you will find quite a lot of critisism here too,
but for some strange reason almost everybody wants to keep it on-track -
probably because de-railings turn out to be hard to handle, in most cases.

> The reason I have been upset with MS is due to the way they hand out the
> logo of works/ certified for Vista without requiring the manufacturer to
show
> the actual test. In this example they would have seen Hauppauge did the
> origonal test for the logo on that product with only 512M of RAM?!?!

Personally, I agree with you on this, this comment really ought to have
appeared in your original post - we have debated the 'glaring' changes that
was made in the WHQL requirements since Vista was released - mostly the
disappearing original requirement that [Certified for Vista] had to imply
that it would not be 64bit incompatible, but it has not been on a daily
exchange here lately.

On the other hand, 64bit computing is a moving target and it is not many
months ago that the general PC professional would regard putting a TV card
onto a 8GB machine as a somewhat alien idea, but I agree - this is not any
credit for Hauppauge, they have no reason to feel proud and I think it's a
great idea that MS (or the manufacturer?) should make the tests public.

Thanks, though, for making your own experiments public - the Voltage trick
is immensly usefull, I think! Can you think of anything reasonably
interesting to add about the steps you took, and/or how much you upped the
V?


Tony. . .




"Defjr" <Defjr@discussions.microsoft.com> wrote in message
news:40B437F3-D856-4A95-AB63-B93D7BCF536A@microsoft.com...
> First off, I want to say thank you to all of you who have replied, and
> especially Mr Russell. I did not intend to come off as yelling at you
guys,
> but MS. Now then, I used the voltage "trick" and now all seems to be well
> with 1 exception:
> On the Vista compatibility page of this website it lists the Hauppauge
> PVR150MCE/ PVR500MCE tuner as Compliant, and works with 64 bit, and it
> does.....if you have less than 4 gigs of memory(why that magic number
keeps
> showing up is beyond me). Hauppauge says they will not be looking into the
> problem anytime soon, as they are working on their "new" product line, but
> has offered to RMA the card for a new model that will work(all beit a
single
> tuner model).
> the world would use a 64bit OS with that low of RAM? Isnt the whole
purpose
> of 64 bit for more memory allocations? Anyone know why you cant install
Vista
> 64 with more than 2 gigs of RAM to start? I origonally attempted
installing
> with 8, then 6, then 4, and finally successfull with 2. Upon installing
SP1 I
> could then re-install the memory and moved the voltage up as suggested and
> all worked fine?!?
> Again thanks to those who sent in sugestions, and hopefully this will all
be
> done soon.
 
Re: When can I use all 8gigs of my memory MS???

<snip>

Can you venture a guess as to why too much ram effects a video card?
They are on different buses.
 
Re: When can I use all 8gigs of my memory MS???

I wouldn't really know. To me, this has a look of 'stupidity' about it.
Since a TV tuner card operates partly by saving streams to files I guess the
driver could try and set up a default buffer to start from in quick respons
to someone saying "Hey, I want to record this show!" - the routine, perhaps
having a 'good-will' kind of attitude, wants to find an optimal size for the
buffer and then chokes on the amount?

Hard to say, though. It's not pretty!


Tony. . .




<miso@sushi.com> wrote in message
news:d6a9b454-4a4a-40be-b25d-bc6752129ee9@b1g2000hsg.googlegroups.com...
> <snip>
>
> Can you venture a guess as to why too much ram effects a video card?
> They are on different buses.
 
Re: When can I use all 8gigs of my memory MS???



<miso@sushi.com> wrote in message
news:d6a9b454-4a4a-40be-b25d-bc6752129ee9@b1g2000hsg.googlegroups.com...
> <snip>
>
> Can you venture a guess as to why too much ram effects a video card?
> They are on different buses.

They share the same address space, though.

Tom Lake
 
Re: When can I use all 8gigs of my memory MS???

In message <40B437F3-D856-4A95-AB63-B93D7BCF536A@microsoft.com> Defjr
<Defjr@discussions.microsoft.com> wrote:

>if you have less than 4 gigs of memory(why that magic number keeps
>showing up is beyond me)

2^32 is 4GB. If you're using a 32bit integer for address ranges, you
can't access memory above 4GB.

If you're an operating system, this isn't a big deal, you just don't
offer access to memory above 4GB at all and life is good.

Applications can usually survive as the operating system's virtual
memory subsystem already remaps memory requests.

However, drivers don't have that luxury as they deal directly with
hardware.
 
Re: When can I use all 8gigs of my memory MS???

In message
<d6a9b454-4a4a-40be-b25d-bc6752129ee9@b1g2000hsg.googlegroups.com>
miso@sushi.com wrote:

><snip>
>
>Can you venture a guess as to why too much ram effects a video card?
>They are on different buses.

Different bus, but shared address space.

Also, in the area of video cards or other devices which deal with large
amounts of data, the hardware may also use DMA (direct memory access) as
well as shared address space.

For either DMA or shared address space to work, both the hardware and
drivers have to be capable of addressing all of the RAM currently in use
by the operating system.
 
Re: When can I use all 8gigs of my memory MS???

On Apr 12, 3:34 pm, DevilsPGD <spam_narf_s...@crazyhat.net> wrote:
> In message <40B437F3-D856-4A95-AB63-B93D7BCF5...@microsoft.com> Defjr
>
> <De...@discussions.microsoft.com> wrote:
> >if you have less than 4 gigs of memory(why that magic number keeps
> >showing up is beyond me)
>
> 2^32 is 4GB. If you're using a 32bit integer for address ranges, you
> can't access memory above 4GB.
>
> If you're an operating system, this isn't a big deal, you just don't
> offer access to memory above 4GB at all and life is good.
>
> Applications can usually survive as the operating system's virtual
> memory subsystem already remaps memory requests.
>
> However, drivers don't have that luxury as they deal directly with
> hardware.

Just to be clear here, while 2**32 is 4G, MS didn't see fit to allow
their 32 bit OS to see 4G. The limit is around 3.2G. In some
situations, I believe the Intel chip set is the limiting factor
regarding available memory.
 
Re: When can I use all 8gigs of my memory MS???

In message
<d384203d-a73b-40b3-8c7e-de524ddeb5eb@m1g2000pre.googlegroups.com>
miso@sushi.com wrote:

>Just to be clear here, while 2**32 is 4G, MS didn't see fit to allow
>their 32 bit OS to see 4G. The limit is around 3.2G. In some
>situations, I believe the Intel chip set is the limiting factor
>regarding available memory.

The ~3.2GB limitation is not Microsoft specific, it's an x86
architectural limitation.

In general an x86 system can't actually address 4GB of memory, but
rather, it has 4GB of address space.

Certain blocks (Parts of 640KB-1MB, hence the old DOS 640KB limit) are
reserved in all systems, various other hardware needs have their own
variable address space needs.

Between your motherboard and video card, you're usually down to about
3.2GB of address space for physical RAM. With a couple higher end video
cards, this can be substantially lower.

There is a hack around the problem, PAE, which is more or less the EMS
of the 2000 era, but it requires all hardware and kernel mode drivers to
support PAE, so in practice it's only seen on servers (and isn't
included in any Microsoft desktop operating systems)
 
Re: When can I use all 8gigs of my memory MS???


>
> Just to be clear here, while 2**32 is 4G, MS didn't see fit to allow
> their 32 bit OS to see 4G. The limit is around 3.2G. In some
> situations, I believe the Intel chip set is the limiting factor
> regarding available memory.

IIRC, chipset memory limits occur in powers of two, at least for newer
chipsets. A few Intel sets have a 2GB limit, a lot of sets have a 4GB limit,
and more have an 8GB limit. I'm pretty sure oddball limits like 3.2GB are OS
limitations.
 
Re: When can I use all 8gigs of my memory MS???

That is NOT something MS did at all. It is the BIOS on your mobo that is
reserving the space. My systems show from 2.5GB to 3.5GB, depending on the
hardware on the system. There is simply no such thing as a 3.2GB limit.
The often quoted knowlegebase article that gives 3.12GB does so as an
example in order to illustrate how the memory available for user programs is
calculated. It is no more valid for your system than a TurboTax example
would be for your real return.

<miso@sushi.com> wrote in message
news:d384203d-a73b-40b3-8c7e-de524ddeb5eb@m1g2000pre.googlegroups.com...
> On Apr 12, 3:34 pm, DevilsPGD <spam_narf_s...@crazyhat.net> wrote:
>> In message <40B437F3-D856-4A95-AB63-B93D7BCF5...@microsoft.com> Defjr
>>
>> <De...@discussions.microsoft.com> wrote:
>> >if you have less than 4 gigs of memory(why that magic number keeps
>> >showing up is beyond me)
>>
>> 2^32 is 4GB. If you're using a 32bit integer for address ranges, you
>> can't access memory above 4GB.
>>
>> If you're an operating system, this isn't a big deal, you just don't
>> offer access to memory above 4GB at all and life is good.
>>
>> Applications can usually survive as the operating system's virtual
>> memory subsystem already remaps memory requests.
>>
>> However, drivers don't have that luxury as they deal directly with
>> hardware.
>
> Just to be clear here, while 2**32 is 4G, MS didn't see fit to allow
> their 32 bit OS to see 4G. The limit is around 3.2G. In some
> situations, I believe the Intel chip set is the limiting factor
> regarding available memory.
 
Re: When can I use all 8gigs of my memory MS???

The "oddball" amounts are not OS limitations and they are not oddballs.
They result from how the BIOS allocates memory-mapped IO for the devices
installed on the system. The mobo manufacturer is responsible for this, not
MS. Since hardware varies from system to system, so does the amount
reserved for the memory-mapped IO.

"Zootal" <msnews@zootal.nospam.com> wrote in message
news:uESOQRRnIHA.3780@TK2MSFTNGP06.phx.gbl...
>
>>
>> Just to be clear here, while 2**32 is 4G, MS didn't see fit to allow
>> their 32 bit OS to see 4G. The limit is around 3.2G. In some
>> situations, I believe the Intel chip set is the limiting factor
>> regarding available memory.
>
> IIRC, chipset memory limits occur in powers of two, at least for newer
> chipsets. A few Intel sets have a 2GB limit, a lot of sets have a 4GB
> limit, and more have an 8GB limit. I'm pretty sure oddball limits like
> 3.2GB are OS limitations.
>
>
 
Back
Top