Memory Problems . . Need Help.

[PhillyDee]

I have the following system . . .
Gigabyte DS3 Motherboard
E6600 (With Tuniq Tower 120 HSF)
Corsair 620W Power Supply
Sapphire x1650 Pro 256Mb
4Gb GeIL PC6400 Ultra Low Latency (4 x 1Gb Sticks)
Antec 900 Case

I am currently experiencing Memtest errors but i am having trouble pinning down the cause.
I decided to test my RAM as i was getting random crashes on BF2142, so I ran Memtest86 from a bootable CD and discovered around 584 Errors on the first pass with all 4 sticks in.

I have tested them all individually with no errors (3 passes each).
I then tested 1 matched pair in both slots 1&3 and then 2&4 with no problems.
I have also tested the other matched pair in slots 1 & 2 with no errors.

For some reason, i only get the errors when all 4 sticks are installed in the motherboard. I get the same errors at 2.0V as well.

The memory is at its recommended timings 4-4-4-12 and 2.1V.

Can anyone try and shed some light on this, as its confused the hell out of me.

I bought all the stuff from overclockers, and have read the forums for many months. I just never got around to registering on here.

 

[critom]

Try putting the ram settings back to auto. It sounds like the problem i have in this thread
http://forums.overclockers.co.uk/showthread.php?t=17691239

if i try putting it to stated voltage and speed i get memtest errors. Running in auto i get none after 30+ passes

 

[PhillyDee]

I have now checked all 4 sticks at 1.8V, 1.9V, 2.0V, and 2.1V.

They all fail on Test 7 (Random Number Sequence). Last one at default SPD 1.8V 8-8-8-15 was 5000 Errors.

But when i check them singly or in the matched pairs they all pass. Even when checked in different motherboard slots.

Can anyone please help shed some light on this ?

Could it be a motherboard problem?