Instability with 4gb ram?

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Zootal

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Has anyone noticed any instability with XP64 when 4GB of ram that goes away
when using 2GB? I'm struggling with a random blue screen problem that seems
to go away when I run with 2GB of ram - any 2GB. The actual error varies,
and tends to be strange stuff like pfn_list_corrupt, etc., which usually
points to hardware problems. So far it seems to work fine if I run with 2GB,
and it doesn't seem to matter which memory sticks, or which slots they are
in. This makes me wonder if my mobo just can't handle 4GB, or if there might
be XP64 issues with that much memory?
 
Re: Instability with 4gb ram?

There were some issues with Outlook and a couple of other applications and 4
GB, but not with XP x64 itself. However, there are a LOT of motherboards out
there that don't handle four DIMMs as well as they should. This can
sometimes be improved by tweaking the voltage up a bit to the RAM. And
motherboards that do fine with it today, may develop issues over time.
Especially if the power supply is a bit marginal, and you start to add
additional power using things to your computer. I'd also look for a BIOS
update from your mobo mfg - sometimes that can help.

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


"Zootal" <msnews@zootal.nospam.com> wrote in message
news:%23gYxpZn%23IHA.4856@TK2MSFTNGP06.phx.gbl...
> Has anyone noticed any instability with XP64 when 4GB of ram that goes
> away when using 2GB? I'm struggling with a random blue screen problem that
> seems to go away when I run with 2GB of ram - any 2GB. The actual error
> varies, and tends to be strange stuff like pfn_list_corrupt, etc., which
> usually points to hardware problems. So far it seems to work fine if I run
> with 2GB, and it doesn't seem to matter which memory sticks, or which
> slots they are in. This makes me wonder if my mobo just can't handle 4GB,
> or if there might be XP64 issues with that much memory?
>
 
Re: Instability with 4gb ram?

I'm currently playing with the memory voltage. I have another board, an Asus
M2A-VM that won't run unless I manual set the voltage to 1.8. then it's rock
solid. I'm not sure what "auto" means, it apparently isn't 1.8v. <sigh....>

I'm wondering if I should get a set of 2GB sticks, instead of trying to use
four 1GB sticks?

"Charlie Russel - MVP" <charlie@mvKILLALLSPAMMERSps.org> wrote in message
news:%239LHxmn%23IHA.1452@TK2MSFTNGP02.phx.gbl...
> There were some issues with Outlook and a couple of other applications and
> 4 GB, but not with XP x64 itself. However, there are a LOT of motherboards
> out there that don't handle four DIMMs as well as they should. This can
> sometimes be improved by tweaking the voltage up a bit to the RAM. And
> motherboards that do fine with it today, may develop issues over time.
> Especially if the power supply is a bit marginal, and you start to add
> additional power using things to your computer. I'd also look for a BIOS
> update from your mobo mfg - sometimes that can help.
>
> --
> Charlie.
> http://msmvps.com/blogs/xperts64
> http://mvp.support.microsoft.com/profile/charlie.russel
>
>
> "Zootal" <msnews@zootal.nospam.com> wrote in message
> news:%23gYxpZn%23IHA.4856@TK2MSFTNGP06.phx.gbl...
>> Has anyone noticed any instability with XP64 when 4GB of ram that goes
>> away when using 2GB? I'm struggling with a random blue screen problem
>> that seems to go away when I run with 2GB of ram - any 2GB. The actual
>> error varies, and tends to be strange stuff like pfn_list_corrupt, etc.,
>> which usually points to hardware problems. So far it seems to work fine
>> if I run with 2GB, and it doesn't seem to matter which memory sticks, or
>> which slots they are in. This makes me wonder if my mobo just can't
>> handle 4GB, or if there might be XP64 issues with that much memory?
>>
>
 
Re: Instability with 4gb ram?

Yup, if it will use 2 GB sticks, go that way. I've got an oldish A8V-VM that
is the mobo for my Windows Home Server, and I had to swap out the 512 Mb
sticks for a pair of 1 GB to get up to where I wanted to be for WHS - 2GB.
Nothing I did would allow it to even boot with 4 sticks in.

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


"Zootal" <Don't send me any freaking spam at zootal dot com remove the don't
send me any freaking spam> wrote in message
news:OsTzT%23o%23IHA.4772@TK2MSFTNGP06.phx.gbl...
> I'm currently playing with the memory voltage. I have another board, an
> Asus M2A-VM that won't run unless I manual set the voltage to 1.8. then
> it's rock solid. I'm not sure what "auto" means, it apparently isn't 1.8v.
> <sigh....>
>
> I'm wondering if I should get a set of 2GB sticks, instead of trying to
> use four 1GB sticks?
>
> "Charlie Russel - MVP" <charlie@mvKILLALLSPAMMERSps.org> wrote in message
> news:%239LHxmn%23IHA.1452@TK2MSFTNGP02.phx.gbl...
>> There were some issues with Outlook and a couple of other applications
>> and 4 GB, but not with XP x64 itself. However, there are a LOT of
>> motherboards out there that don't handle four DIMMs as well as they
>> should. This can sometimes be improved by tweaking the voltage up a bit
>> to the RAM. And motherboards that do fine with it today, may develop
>> issues over time. Especially if the power supply is a bit marginal, and
>> you start to add additional power using things to your computer. I'd also
>> look for a BIOS update from your mobo mfg - sometimes that can help.
>>
>> --
>> Charlie.
>> http://msmvps.com/blogs/xperts64
>> http://mvp.support.microsoft.com/profile/charlie.russel
>>
>>
>> "Zootal" <msnews@zootal.nospam.com> wrote in message
>> news:%23gYxpZn%23IHA.4856@TK2MSFTNGP06.phx.gbl...
>>> Has anyone noticed any instability with XP64 when 4GB of ram that goes
>>> away when using 2GB? I'm struggling with a random blue screen problem
>>> that seems to go away when I run with 2GB of ram - any 2GB. The actual
>>> error varies, and tends to be strange stuff like pfn_list_corrupt, etc.,
>>> which usually points to hardware problems. So far it seems to work fine
>>> if I run with 2GB, and it doesn't seem to matter which memory sticks, or
>>> which slots they are in. This makes me wonder if my mobo just can't
>>> handle 4GB, or if there might be XP64 issues with that much memory?
>>>
>>
>
>
 
Re: Instability with 4gb ram?

With some motherboards it's a timing problem when all four slots are full,
not a voltage problem. Try running the RAM at a slower speed.

--
Kerry Brown
MS-MVP - Windows Desktop Experience: Systems Administration
http://www.vistahelp.ca/phpBB2/
http://vistahelpca.blogspot.com/


"Zootal" <Don't send me any freaking spam at zootal dot com remove the don't
send me any freaking spam> wrote in message
news:OsTzT%23o%23IHA.4772@TK2MSFTNGP06.phx.gbl...
> I'm currently playing with the memory voltage. I have another board, an
> Asus M2A-VM that won't run unless I manual set the voltage to 1.8. then
> it's rock solid. I'm not sure what "auto" means, it apparently isn't 1.8v.
> <sigh....>
>
> I'm wondering if I should get a set of 2GB sticks, instead of trying to
> use four 1GB sticks?
>
> "Charlie Russel - MVP" <charlie@mvKILLALLSPAMMERSps.org> wrote in message
> news:%239LHxmn%23IHA.1452@TK2MSFTNGP02.phx.gbl...
>> There were some issues with Outlook and a couple of other applications
>> and 4 GB, but not with XP x64 itself. However, there are a LOT of
>> motherboards out there that don't handle four DIMMs as well as they
>> should. This can sometimes be improved by tweaking the voltage up a bit
>> to the RAM. And motherboards that do fine with it today, may develop
>> issues over time. Especially if the power supply is a bit marginal, and
>> you start to add additional power using things to your computer. I'd also
>> look for a BIOS update from your mobo mfg - sometimes that can help.
>>
>> --
>> Charlie.
>> http://msmvps.com/blogs/xperts64
>> http://mvp.support.microsoft.com/profile/charlie.russel
>>
>>
>> "Zootal" <msnews@zootal.nospam.com> wrote in message
>> news:%23gYxpZn%23IHA.4856@TK2MSFTNGP06.phx.gbl...
>>> Has anyone noticed any instability with XP64 when 4GB of ram that goes
>>> away when using 2GB? I'm struggling with a random blue screen problem
>>> that seems to go away when I run with 2GB of ram - any 2GB. The actual
>>> error varies, and tends to be strange stuff like pfn_list_corrupt, etc.,
>>> which usually points to hardware problems. So far it seems to work fine
>>> if I run with 2GB, and it doesn't seem to matter which memory sticks, or
>>> which slots they are in. This makes me wonder if my mobo just can't
>>> handle 4GB, or if there might be XP64 issues with that much memory?
>>>
>>
>
>
 
RE: Instability with 4gb ram?

seems like a board power distribution problem. some boards are notorious
for that like foxconn.

"Zootal" wrote:

> Has anyone noticed any instability with XP64 when 4GB of ram that goes away
> when using 2GB? I'm struggling with a random blue screen problem that seems
> to go away when I run with 2GB of ram - any 2GB. The actual error varies,
> and tends to be strange stuff like pfn_list_corrupt, etc., which usually
> points to hardware problems. So far it seems to work fine if I run with 2GB,
> and it doesn't seem to matter which memory sticks, or which slots they are
> in. This makes me wonder if my mobo just can't handle 4GB, or if there might
> be XP64 issues with that much memory?
>
>
>
 
Re: Instability with 4gb ram?

It's an Asus board. However, that doesn't seem to mean much anymore - Asus
boards aren't as good as they used to be. That could very well be the
problem, since any two sticks run fine. Not sure what I can do about it,
though, other then get a set of 2GB sticks.

Hmm...here is a thought. the board comes with a set of memory heat pipes,
but they only cool two sticks. I wonder if they would make a difference? I'm
thinking not because I'm currently running the board with the cover off and
a fan blowing inside. That dropped the internal temp by about 10+ degrees
(telling me I have piss-poor circulation inside the box with the cover on).
There was no problem before I took the cover off, I just didn't like the cpu
temp hitting 130 degrees F.


"PH" <PH@discussions.microsoft.com> wrote in message
news:3CA129F1-E02A-4D76-A5E3-3D869FCAB5A7@microsoft.com...
> seems like a board power distribution problem. some boards are notorious
> for that like foxconn.
>
> "Zootal" wrote:
>
>> Has anyone noticed any instability with XP64 when 4GB of ram that goes
>> away
>> when using 2GB? I'm struggling with a random blue screen problem that
>> seems
>> to go away when I run with 2GB of ram - any 2GB. The actual error varies,
>> and tends to be strange stuff like pfn_list_corrupt, etc., which usually
>> points to hardware problems. So far it seems to work fine if I run with
>> 2GB,
>> and it doesn't seem to matter which memory sticks, or which slots they
>> are
>> in. This makes me wonder if my mobo just can't handle 4GB, or if there
>> might
>> be XP64 issues with that much memory?
>>
>>
>>
 
Re: Instability with 4gb ram?

When all four RAM slots are full on many motherboards it's usually
necessary to relax your memory timings . If your command rate is at
1T (one clock cycle) then change it to 2T (two clock cycles).

Are your 4 memory sticks the exact same model? It is recommended that
the modules you use be of the same size, speed, arrangement etc.


On Sat, 9 Aug 2008 16:18:53 -0700, "Zootal" <msnews@zootal.nospam.com>
wrote:

>Has anyone noticed any instability with XP64 when 4GB of ram that goes away
>when using 2GB? I'm struggling with a random blue screen problem that seems
>to go away when I run with 2GB of ram - any 2GB. The actual error varies,
>and tends to be strange stuff like pfn_list_corrupt, etc., which usually
>points to hardware problems. So far it seems to work fine if I run with 2GB,
>and it doesn't seem to matter which memory sticks, or which slots they are
>in. This makes me wonder if my mobo just can't handle 4GB, or if there might
>be XP64 issues with that much memory?
>
 
Re: Instability with 4gb ram?

Time for a new (and better) box. A well designed enclosure should run cooler
when all the covers are on, not when you've got the cover off and a fan
blowing on it.

There are quite expensive enclosures, such as Lian Li, that have been
reported to be very good, and are certainly cool looking, but in a more
reasonable range, the P18x series from Antec made a huge difference on a
machine of mine that had heat problems. (see an old blog post of mine:
http://msmvps.com/blogs/xperts64/archive/2005/12/07/78351.aspx for details.)

--
Charlie.
"Zootal" <msnews@zootal.nospam.com> wrote in message
news:ONiCali$IHA.1184@TK2MSFTNGP04.phx.gbl...
> It's an Asus board. However, that doesn't seem to mean much anymore - Asus
> boards aren't as good as they used to be. That could very well be the
> problem, since any two sticks run fine. Not sure what I can do about it,
> though, other then get a set of 2GB sticks.
>
> Hmm...here is a thought. the board comes with a set of memory heat pipes,
> but they only cool two sticks. I wonder if they would make a difference?
> I'm thinking not because I'm currently running the board with the cover
> off and a fan blowing inside. That dropped the internal temp by about 10+
> degrees (telling me I have piss-poor circulation inside the box with the
> cover on). There was no problem before I took the cover off, I just didn't
> like the cpu temp hitting 130 degrees F.
>
>
> "PH" <PH@discussions.microsoft.com> wrote in message
> news:3CA129F1-E02A-4D76-A5E3-3D869FCAB5A7@microsoft.com...
>> seems like a board power distribution problem. some boards are notorious
>> for that like foxconn.
>>
>> "Zootal" wrote:
>>
>>> Has anyone noticed any instability with XP64 when 4GB of ram that goes
>>> away
>>> when using 2GB? I'm struggling with a random blue screen problem that
>>> seems
>>> to go away when I run with 2GB of ram - any 2GB. The actual error
>>> varies,
>>> and tends to be strange stuff like pfn_list_corrupt, etc., which usually
>>> points to hardware problems. So far it seems to work fine if I run with
>>> 2GB,
>>> and it doesn't seem to matter which memory sticks, or which slots they
>>> are
>>> in. This makes me wonder if my mobo just can't handle 4GB, or if there
>>> might
>>> be XP64 issues with that much memory?
>>>
>>>
>>>
>
>
 
Re: Instability with 4gb ram?

Funny you should mention Foxconn. I've used their boards for years with no
problems. The A79A-S, which I'm currently using, has an additional power
connector near the pcie slots, as well as a power connector for the cpu and
the main power connector. Maybe Foxconn finally got a clue? that they need
more power connectors to start with?

I'm finding the same thing as I found with my Asus board - two sticks are
stable, four sticks are not. I have a set of two 2GB sticks on order, due to
be delivered tomorrow, so I will find out soon if this fixes the problem.

Anyone have experience with Crucial memory? I'm replacing it with Kingston,
and I'm not 100% certain if a) one of the crucial sticks is bad/weak or b)
the boards really can't handle four sticks at once or c) the crucial is just
not a good design in that it is the reason I can't run four sticks at once.

I'm leaning towards the sticks being bad/weak/poor design. I notice that if
the case gets warm, but not unreasonably warm, they will fail diags and as
soon as they cool off they run OK. They are not getting too hot - just warm,
and they should work fine at the temps I've seen them fail at.

IOW, I'm still not sure if it's a bad memory stick design (Crucial), a
defective stick(s), or if the boards just can't handle four sticks, as
others have mentioned.

"PH" <PH@discussions.microsoft.com> wrote in message
news:3CA129F1-E02A-4D76-A5E3-3D869FCAB5A7@microsoft.com...
> seems like a board power distribution problem. some boards are notorious
> for that like foxconn.
>
> "Zootal" wrote:
>
>> Has anyone noticed any instability with XP64 when 4GB of ram that goes
>> away
>> when using 2GB? I'm struggling with a random blue screen problem that
>> seems
>> to go away when I run with 2GB of ram - any 2GB. The actual error varies,
>> and tends to be strange stuff like pfn_list_corrupt, etc., which usually
>> points to hardware problems. So far it seems to work fine if I run with
>> 2GB,
>> and it doesn't seem to matter which memory sticks, or which slots they
>> are
>> in. This makes me wonder if my mobo just can't handle 4GB, or if there
>> might
>> be XP64 issues with that much memory?
>>
>>
>>
 
Re: Instability with 4gb ram?

I've used Crucial memory for years. Very high quality, IME. And certainly,
if any of their memory fails, it's covered.

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

"Zootal" <msnews@zootal.nospam.com> wrote in message
news:%23KZ8CFfDJHA.1228@TK2MSFTNGP02.phx.gbl...
> Funny you should mention Foxconn. I've used their boards for years with no
> problems. The A79A-S, which I'm currently using, has an additional power
> connector near the pcie slots, as well as a power connector for the cpu
> and the main power connector. Maybe Foxconn finally got a clue? that they
> need more power connectors to start with?
>
> I'm finding the same thing as I found with my Asus board - two sticks are
> stable, four sticks are not. I have a set of two 2GB sticks on order, due
> to be delivered tomorrow, so I will find out soon if this fixes the
> problem.
>
> Anyone have experience with Crucial memory? I'm replacing it with
> Kingston, and I'm not 100% certain if a) one of the crucial sticks is
> bad/weak or b) the boards really can't handle four sticks at once or c)
> the crucial is just not a good design in that it is the reason I can't run
> four sticks at once.
>
> I'm leaning towards the sticks being bad/weak/poor design. I notice that
> if the case gets warm, but not unreasonably warm, they will fail diags and
> as soon as they cool off they run OK. They are not getting too hot - just
> warm, and they should work fine at the temps I've seen them fail at.
>
> IOW, I'm still not sure if it's a bad memory stick design (Crucial), a
> defective stick(s), or if the boards just can't handle four sticks, as
> others have mentioned.
>
> "PH" <PH@discussions.microsoft.com> wrote in message
> news:3CA129F1-E02A-4D76-A5E3-3D869FCAB5A7@microsoft.com...
>> seems like a board power distribution problem. some boards are notorious
>> for that like foxconn.
>>
>> "Zootal" wrote:
>>
>>> Has anyone noticed any instability with XP64 when 4GB of ram that goes
>>> away
>>> when using 2GB? I'm struggling with a random blue screen problem that
>>> seems
>>> to go away when I run with 2GB of ram - any 2GB. The actual error
>>> varies,
>>> and tends to be strange stuff like pfn_list_corrupt, etc., which usually
>>> points to hardware problems. So far it seems to work fine if I run with
>>> 2GB,
>>> and it doesn't seem to matter which memory sticks, or which slots they
>>> are
>>> in. This makes me wonder if my mobo just can't handle 4GB, or if there
>>> might
>>> be XP64 issues with that much memory?
>>>
>>>
>>>
>
>
 
Re: Instability with 4gb ram?

I talked to Crucial about it and interesting enough, they told me to
increase the voltage on the sticks even higher, up to 2.2v, and said they
would most likely not run at 1066 with default bios settings. I ran with
2GB for a day, and at one time found my swap file was at about 800MB
usage...and I remember when 640k was a lot of memory lol.


"Charlie Russel - MVP" <charlie@mvKILLALLSPAMMERSps.org> wrote in message
news:OwjHPKpDJHA.524@TK2MSFTNGP06.phx.gbl...
> I've used Crucial memory for years. Very high quality, IME. And certainly,
> if any of their memory fails, it's covered.
>
> --
> Charlie.
> http://msmvps.com/blogs/xperts64
> http://mvp.support.microsoft.com/profile/charlie.russel
>
> "Zootal" <msnews@zootal.nospam.com> wrote in message
> news:%23KZ8CFfDJHA.1228@TK2MSFTNGP02.phx.gbl...
>> Funny you should mention Foxconn. I've used their boards for years with
>> no problems. The A79A-S, which I'm currently using, has an additional
>> power connector near the pcie slots, as well as a power connector for the
>> cpu and the main power connector. Maybe Foxconn finally got a clue? that
>> they need more power connectors to start with?
>>
>> I'm finding the same thing as I found with my Asus board - two sticks are
>> stable, four sticks are not. I have a set of two 2GB sticks on order, due
>> to be delivered tomorrow, so I will find out soon if this fixes the
>> problem.
>>
>> Anyone have experience with Crucial memory? I'm replacing it with
>> Kingston, and I'm not 100% certain if a) one of the crucial sticks is
>> bad/weak or b) the boards really can't handle four sticks at once or c)
>> the crucial is just not a good design in that it is the reason I can't
>> run four sticks at once.
>>
>> I'm leaning towards the sticks being bad/weak/poor design. I notice that
>> if the case gets warm, but not unreasonably warm, they will fail diags
>> and as soon as they cool off they run OK. They are not getting too hot -
>> just warm, and they should work fine at the temps I've seen them fail at.
>>
>> IOW, I'm still not sure if it's a bad memory stick design (Crucial), a
>> defective stick(s), or if the boards just can't handle four sticks, as
>> others have mentioned.
>>
>> "PH" <PH@discussions.microsoft.com> wrote in message
>> news:3CA129F1-E02A-4D76-A5E3-3D869FCAB5A7@microsoft.com...
>>> seems like a board power distribution problem. some boards are notorious
>>> for that like foxconn.
>>>
>>> "Zootal" wrote:
>>>
>>>> Has anyone noticed any instability with XP64 when 4GB of ram that goes
>>>> away
>>>> when using 2GB? I'm struggling with a random blue screen problem that
>>>> seems
>>>> to go away when I run with 2GB of ram - any 2GB. The actual error
>>>> varies,
>>>> and tends to be strange stuff like pfn_list_corrupt, etc., which
>>>> usually
>>>> points to hardware problems. So far it seems to work fine if I run with
>>>> 2GB,
>>>> and it doesn't seem to matter which memory sticks, or which slots they
>>>> are
>>>> in. This makes me wonder if my mobo just can't handle 4GB, or if there
>>>> might
>>>> be XP64 issues with that much memory?
>>>>
>>>>
>>>>
>>
>>
>
 
Re: Instability with 4gb ram?

LOL.

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

"Zootal" <msnews@zootal.nospam.com> wrote in message
news:OGI7dOrDJHA.4816@TK2MSFTNGP06.phx.gbl...
>I talked to Crucial about it and interesting enough, they told me to
>increase the voltage on the sticks even higher, up to 2.2v, and said they
>would most likely not run at 1066 with default bios settings. I ran with
>2GB for a day, and at one time found my swap file was at about 800MB
>usage...and I remember when 640k was a lot of memory lol.
>
>
> "Charlie Russel - MVP" <charlie@mvKILLALLSPAMMERSps.org> wrote in message
> news:OwjHPKpDJHA.524@TK2MSFTNGP06.phx.gbl...
>> I've used Crucial memory for years. Very high quality, IME. And
>> certainly, if any of their memory fails, it's covered.
>>
>> --
>> Charlie.
>> http://msmvps.com/blogs/xperts64
>> http://mvp.support.microsoft.com/profile/charlie.russel
>>
>> "Zootal" <msnews@zootal.nospam.com> wrote in message
>> news:%23KZ8CFfDJHA.1228@TK2MSFTNGP02.phx.gbl...
>>> Funny you should mention Foxconn. I've used their boards for years with
>>> no problems. The A79A-S, which I'm currently using, has an additional
>>> power connector near the pcie slots, as well as a power connector for
>>> the cpu and the main power connector. Maybe Foxconn finally got a clue?
>>> that they need more power connectors to start with?
>>>
>>> I'm finding the same thing as I found with my Asus board - two sticks
>>> are stable, four sticks are not. I have a set of two 2GB sticks on
>>> order, due to be delivered tomorrow, so I will find out soon if this
>>> fixes the problem.
>>>
>>> Anyone have experience with Crucial memory? I'm replacing it with
>>> Kingston, and I'm not 100% certain if a) one of the crucial sticks is
>>> bad/weak or b) the boards really can't handle four sticks at once or c)
>>> the crucial is just not a good design in that it is the reason I can't
>>> run four sticks at once.
>>>
>>> I'm leaning towards the sticks being bad/weak/poor design. I notice that
>>> if the case gets warm, but not unreasonably warm, they will fail diags
>>> and as soon as they cool off they run OK. They are not getting too hot -
>>> just warm, and they should work fine at the temps I've seen them fail
>>> at.
>>>
>>> IOW, I'm still not sure if it's a bad memory stick design (Crucial), a
>>> defective stick(s), or if the boards just can't handle four sticks, as
>>> others have mentioned.
>>>
>>> "PH" <PH@discussions.microsoft.com> wrote in message
>>> news:3CA129F1-E02A-4D76-A5E3-3D869FCAB5A7@microsoft.com...
>>>> seems like a board power distribution problem. some boards are
>>>> notorious
>>>> for that like foxconn.
>>>>
>>>> "Zootal" wrote:
>>>>
>>>>> Has anyone noticed any instability with XP64 when 4GB of ram that goes
>>>>> away
>>>>> when using 2GB? I'm struggling with a random blue screen problem that
>>>>> seems
>>>>> to go away when I run with 2GB of ram - any 2GB. The actual error
>>>>> varies,
>>>>> and tends to be strange stuff like pfn_list_corrupt, etc., which
>>>>> usually
>>>>> points to hardware problems. So far it seems to work fine if I run
>>>>> with 2GB,
>>>>> and it doesn't seem to matter which memory sticks, or which slots they
>>>>> are
>>>>> in. This makes me wonder if my mobo just can't handle 4GB, or if there
>>>>> might
>>>>> be XP64 issues with that much memory?
>>>>>
>>>>>
>>>>>
>>>
>>>
>>
>
>
 
Re: Instability with 4gb ram?

I have 34 hours uptime on two 2GB sticks running at 1066. So far it seems to
be rock solid.

"Charlie Russel - MVP" <charlie@mvKILLALLSPAMMERSps.org> wrote in message
news:OwjHPKpDJHA.524@TK2MSFTNGP06.phx.gbl...
> I've used Crucial memory for years. Very high quality, IME. And certainly,
> if any of their memory fails, it's covered.
>
> --
> Charlie.
> http://msmvps.com/blogs/xperts64
> http://mvp.support.microsoft.com/profile/charlie.russel
>
> "Zootal" <msnews@zootal.nospam.com> wrote in message
> news:%23KZ8CFfDJHA.1228@TK2MSFTNGP02.phx.gbl...
>> Funny you should mention Foxconn. I've used their boards for years with
>> no problems. The A79A-S, which I'm currently using, has an additional
>> power connector near the pcie slots, as well as a power connector for the
>> cpu and the main power connector. Maybe Foxconn finally got a clue? that
>> they need more power connectors to start with?
>>
>> I'm finding the same thing as I found with my Asus board - two sticks are
>> stable, four sticks are not. I have a set of two 2GB sticks on order, due
>> to be delivered tomorrow, so I will find out soon if this fixes the
>> problem.
>>
>> Anyone have experience with Crucial memory? I'm replacing it with
>> Kingston, and I'm not 100% certain if a) one of the crucial sticks is
>> bad/weak or b) the boards really can't handle four sticks at once or c)
>> the crucial is just not a good design in that it is the reason I can't
>> run four sticks at once.
>>
>> I'm leaning towards the sticks being bad/weak/poor design. I notice that
>> if the case gets warm, but not unreasonably warm, they will fail diags
>> and as soon as they cool off they run OK. They are not getting too hot -
>> just warm, and they should work fine at the temps I've seen them fail at.
>>
>> IOW, I'm still not sure if it's a bad memory stick design (Crucial), a
>> defective stick(s), or if the boards just can't handle four sticks, as
>> others have mentioned.
>>
>> "PH" <PH@discussions.microsoft.com> wrote in message
>> news:3CA129F1-E02A-4D76-A5E3-3D869FCAB5A7@microsoft.com...
>>> seems like a board power distribution problem. some boards are notorious
>>> for that like foxconn.
>>>
>>> "Zootal" wrote:
>>>
>>>> Has anyone noticed any instability with XP64 when 4GB of ram that goes
>>>> away
>>>> when using 2GB? I'm struggling with a random blue screen problem that
>>>> seems
>>>> to go away when I run with 2GB of ram - any 2GB. The actual error
>>>> varies,
>>>> and tends to be strange stuff like pfn_list_corrupt, etc., which
>>>> usually
>>>> points to hardware problems. So far it seems to work fine if I run with
>>>> 2GB,
>>>> and it doesn't seem to matter which memory sticks, or which slots they
>>>> are
>>>> in. This makes me wonder if my mobo just can't handle 4GB, or if there
>>>> might
>>>> be XP64 issues with that much memory?
>>>>
>>>>
>>>>
>>
>>
>
 

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