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Originally Posted by Wolf2000me I have indeed seen similar results on my rig. Of course the fact that one memory module gave up on me made it kind of hard to make a good judgement of what's the cause of my instability. I do think there are other instability variables at work on my rig. Right now i'm suspecting my PSU and in less severity the Merlin CPC1 Bios. Reason is: I have been running dual channel 2x232 at 2-2-2-11 and primed it for more than 6 hours. No errors there. Memtest86 v.3.2 didn't detect any errors nor did the windows based memtest that i use sometimes. I then clocked somewhat higher to test and i did not find any real problems. Until i saw some voltage fluctuations and to find one of my modules to be fubar. I have seen instabilities in games as well. I ran Aquamark at 232 and at 222 mhz before the troubles began. No problems noted, just performance increase. |
First, thanx a lot for such a quick answer.
Second - as I wrote above, I tested at FSB220 with SuperPI 16M (manages at FSB235), Prime95 Blend and Large FFTs and Memtest86+ 1.50 (corrected "classic" Memtest86) - all of them for hours and everything seemed fine. But I couldn't and can't run
any single 3D bechmark at 11x220 (moderate CPU's
OC). What more - 3D05 seems to be more sensitive to
OC than the rest of them - it even crashes at 10.5x210.
Only FSB200 is stable for all the possible benchmarks I can run.
Third - if it was the
PSU causing such problems, I wouldn't have been able to make such results :
http://service.futuremark.com/compare?2k1=8276082
Abit NF7 v2.0, D26 Black Mantaray, 2x512MB of Twinmos Twister PC4000, CPU at 11.5x230 - indeed really stressful for the
PSU.
http://service.futuremark.com/compare?2k3=3416361
The same as above, but at 11.5x225.
http://arc.aquamark3.com/arc/arc_view.php?run=486264764
The previous Epox 8RDA3+ PRO rev.1.2, stock bios, old mem sticks, CPU at 12x220.
So - is something wrong with the memory? Do my new G.Skill sticks just don't like Merlin's bios or what? Or is this particular board one of the worst I could have bought? I'm already sick and tired of all of this - it's not fun anymore for me.
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Originally Posted by Wolf2000me So MietmaN, unlike your findings, i do really suspect my PSU. Since my troubles began, the vcore has been dropping sometimes. Before it would never drop below the bios set value of 1.875v. Now all voltages are still the same with exception of the vcore to have been noted as lowest value to be 1.84v. So far it has not been unstable at settings from before my VX attempts (see sig). I also have my memory at the same settings but the booster remains. |
Could be both your
PSU or the bent capacitor you mentioned just a few posts above - but you get both unstable V-core and V-dimm readings, don't you?
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Originally Posted by Wolf2000me MietmaN, do you use logfiles to be able to read lowest and highest voltage and temps? At any rate, i've bought an OCZ Modstream 520Watt Psu. If it's my current Psu that killed my VX stick i really don't want it to happen again. So i'd probably be able to test your findings for certain when i have received the VX RMA'd modules and the OCZ Psu. Of course other ppl could clarify some question marks |
I use logfiles from Epox USDM and manually set Motherboard Monitor (can read my fans properly) - voltages seems stable. I've also measured them with a multimeter under some decent load.
I've already almost given up - I've tried CPU Interface both Optimal and Agressive, Memory Auto Precharge Enabled /Auto /Disabled, AGP Auto and 66MHz, AGP x4 and x8 - different timings and various voltages configurations.
Hope we will both solve our problems, somehow ...
