A7V266-E Memory Slot 3

[mapelt]

Very odd problem. On an A7V266-E w/Athlon XP2400+ CPU, I've installed three
sticks of PC2100 RAM (micron and bought from same vendor).
Bank #1: 512MB
Bank #2: 256MB
Bank #3: 256MB

No overclocking, MB and CPU are well within temp range, and BIOS memory
setting is "By SPD"

After two or three days running like this, the puter will seize, and on
re-boot the BIOS will re-negotiate the CPU as a 1500MHz (100X15).

Remove the 256MB stick from Slot #3, and all is well. The puter will then
run stable. And yes, I've swapped the two 256 stix back and forth... works
the same with either.

Is there something about memory bank 3 that I don't know? Should I have the
smaller stix in 1 and 2 and the larger in 3? Any suggestions?

Micheal.

 

[Paul]

Very odd problem. On an A7V266-E w/Athlon XP2400+ CPU, I've installed three
sticks of PC2100 RAM (micron and bought from same vendor).
Bank #1: 512MB
Bank #2: 256MB
Bank #3: 256MB

No overclocking, MB and CPU are well within temp range, and BIOS memory
setting is "By SPD"

After two or three days running like this, the puter will seize, and on
re-boot the BIOS will re-negotiate the CPU as a 1500MHz (100X15).

Remove the 256MB stick from Slot #3, and all is well. The puter will then
run stable. And yes, I've swapped the two 256 stix back and forth... works
the same with either.

Is there something about memory bank 3 that I don't know? Should I have the
smaller stix in 1 and 2 and the larger in 3? Any suggestions?

Micheal.

The best way to test is with memtest86 from memtest86.com .
Start by testing the sticks one at a time, placing them in slot3
(furthest from the processor). Give them a few passes each, to make
sure there is nothing wrong with each stick.

Then, try the 512MB stick in slot3 and put the 256MB sticks in the
other slots. (This assumes the 512MB is double sided and the 256MB
are single sided. Moving them is not going to help if all sticks
are double sided. Placing the double sided stick in slot3 puts
it next to the termination resistors.) With whatever configuration
you think is a "winner", run memtest86 overnight - it should be
free of errors in an overnight test before you can consider it
cured. (You can also use either the BIOS or some utility to inspect
the memory timings, to see if they are consistent with the lowest
performing memory stick you own.)

You don't mention what you are using for a graphics card. Your
problem could also be with the AGP slot. After the memory issues
are all sorted out, get a copy of 3DMark2001SE and see if the program
can run in demo mode all night long without seizing. You will need
chipset drivers (Via 4in1 Hyperion), driver for the video card
(Nvidia Detonator or ATI Catalyst etc), and a version of DirectX
to make 3D work. 3D ops really thrash the AGP slot - this accelerates
the testing faster than ordinary desktop operations would, even if
you don't play 3D games.

A motherboard like a P4PE does have something funny about slots 2 and 3.
According to your motherboard manual, the A7V266-E doesn't have a
problem like that. All three slots are logically identical.

My best guess,
Paul

 

[Randy]

Some motherboards just don't like memory in all 3 slots at once.

 

[We Live For The One We Die For The One]

Ive got the same board.

And i put two 512, 1 and 2 and put a 256 meg in the third one AND.

I got a memory error on bootup which, then went to missing files ect
ect ect.

Had to reformat loosing all my stuff on my c:\ Drive.



Not to much loss my c drve is just my OS drive.

If you must put another dimm put one thats the same as the others.

Bye.