Stability Problems?

wentworthmeister

Junior Member
Mar 8, 2007
3
0
0
Hi guys,

I recently built a rig (specs in my sig) and have been stress testing at stock settings.
I've run SuperPi 1.5, SiSoft Sandra and EVEREST (memory benchmarks) before, they were all fine. However today i installed ORTHOS (dual core) and tried to run the blend test. It failed after 5 seconds, and told me to consult stress.txt, which i could'nt find. So then i ran small FFTs (CPU only) and it ran fine for 2.5hrs till i stopped it. Then i switched to large FFTs (RAM only if i understand correctly) and it failed after 5 seconds again.

I also tried OCCT but it fails after about 20sec too.

I'm thinking that i may have RAM issues, this motherboard (P5N-E SLi) is rather fussy i've read. I actually can't run 4-4-4-15 2T (stock, 1.9-2.1V), i have to use 5-5-5-15 2T (1.8V) unless it will randomly crash. I actually RMA'd the first set of sticks, and these new ones came directly from OCZ. I know that to get memory working well on this board/chipset i need to raise the FSB voltage (it's at 1.25 now), but i can't afford to cause it's only got passive cooling and heats up damn fast. I mean to get a couple of 40mm fans for it, but have'nt got round to it.

I know i should run MemTest but i can't figure out how to burn the disc properly (i'm ashamed to admit).

What i'm really asking is:
1) Can anyone tell me straight off why ORTHOS blend/RAM is failing?
2) Will raising the FSB voltage solve my problems?
3) Can someone run me through how to burn a memtest bootable CD?

Just a side note:
For you overclockers out there i've got the e6300 to 2.7GHz (not much, i know) with stock cooling/voltage, but thought i'd better run back down at stock till i get this stability thing sorted (and till i get an aftermarket cooler - but that's for another thread :) )

Any help appreciated
Thanks heaps
 

Shimmishim

Elite Member
Feb 19, 2001
7,504
0
76
increase your vNB just a smidgen to 1.3 or 1.35. make sure you vSB is 1.55.

v1.2HT at 1.3 or 1.35

also note that the vdimm voltage is lower than what you set in voltage by 0.05-0.07 so you can try a little higher.
 

jhurst

Senior member
Mar 29, 2004
663
0
0
Test one DIMM at a time. Try them at SPD settings, and see if maybe you have one bad stick out of the two. They should be able to pass Orthos at the advertised settings/voltage.

One more thing, since you are overclocking, what MHZ are you running your OCZ at?
 

wentworthmeister

Junior Member
Mar 8, 2007
3
0
0
One more thing, since you are overclocking, what MHZ are you running your OCZ at?

Nothing's actually overclocked at the moment. CPU, FSB, RAM are all at stock speeds and voltages. When i previously overclocked the CPU i set the RAM - FSB to unlinked. This kept it at about 800MHz.

Test one DIMM at a time.

I tried that with the previous set of sticks, they both worked fine and i even got the timings down to 4-4-4-12 2T (from 4-4-4-15 2T - stock). So the individual modules were ok, but OCZ still requested that i RMA them.
The only problems arise when i try to use both modules at once in dual channel. This leads me to think that i may have chipset issues.

Also,
can anyone tell me how to burn a bootable memtest CD?