You have a mis-matched pair of memory modules.

For best results all memory modules should be from the same manufacturer.

"manu08" <manu08@discussions.microsoft.com> wrote in message
news:8DFAC975-2699-4AE6-A215-AD930D37E0B1@microsoft.com...
>I have 2 pairs of RAM modules;
> 1. OCZ Gold Edition (2x512MB)
> (PN:OCZ4001024ELDCGE-K)(http://www.ocztechnology.com/product...l_channel_gold)
>
> 2. Samsung (2x512MB) (M368L6423ETM-CCC)
> (http://www.samsung.com/Products/Semi...68L6423ETM.htm)
>
> I have an Intel D875PBZ motherboard. These 2 pairs don't seem to work
> together. If I use all 4 modules at once they don't work. My computer
> keeps
> restarting at random times & after the restart I get an error message
> saying
> the computer has just recovered from a serious error & windows has made an
> error report and stuff. However when I use either one of the pairs it
> works
> fine without any problems. I have increased the voltage to the maximum my
> motherboard allows which is 2.775V & I have disabled ECC. Anything else I
> could try out ?
> Oh & I downloaded this memory test from www.memtest.org & when I ran the
> test with all 4 modules installed I got a failed test #5. However when I
> ran
> the test with either one of the pairs installed (only 2 modules) the test
> ran
> fine. Maybe that could help to find out what I could try so ya.
>
> Thanks for any help.