DFI RAM slot issues

[Bladesinger7x]

I am experiencing a weird problem; when having 2x512MB ram in orange slots and running PC Mark04 - memory benchmarks the computer reboots; the same happened when ram was in yellow slots. WTF? The reboots happen no matter what FSB, voltage or timings I use (also at default settings). Prime, OCCT and 3DMark seem to work without problems.

 

Then I tried using only one stick at a time, to see if maybe one ram stick was to blame:

 

Slot 1(yellow): windows boots, PC Mark memory benchmarks pass ok

Slot 2(orange): windows boots, PC Mark memory benchmarks pass ok

 

Slot 3(yellow): no boot / black screen, long peeps

slot 4(orange): no boot / black screen, long peeps

 

This happened whether I use stick 1 or stick 2 - the ram is Twinmos PC3200 1GB Dual Kit with Winbond CH-5 chips (week 44, year 03). So I believe the ram sticks

are OK.

 

Is this the board issue - should I give it back and replace or is this maybe a BIOS issue that could be solved.

[Sharp]

Hello,

 

what power supply do you have?

All 4 power connectors plugged into the board?

 

What memory voltage are you using?

 

Have you tested each module at a time with memtest?

Have you tested both module in dual channel mode with memtest?

[Bladesinger7x]

Connecting the floppy power conector solved the PCMark04 reboot issue. Thanx for

the tip.

 

Regarding RAM sticks, yes, they were tested with memtest (1.55+) but so far only

in dual channel. However, I believe this is not the RAM issue, but rather the BIOS.

[Sharp]

Hello,

 

Try going back to BIOS 310.