OC troubleshooting

brazzmunk

Member
Jan 6, 2005
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I have recently bought my athlon 64 system with intention to overclock it. Every thing runs fine except for a few glitches. the first and most annoying is the fact that as soon as i set my memory (OCZ 3700 DDR466) to 206MHZ< it resets computer sporadically, or freezes up, and fails prime 95 in 2 min. I ran memtest 86 for night at 226Mhz ram and it passed without errors. When i slow down my memory to 185Mhz i can easily set my HTT to 285+ and prime runs smoothly without errors, but as soon as i start game like ut2004, hl2 or doom3 or run 3dmark it freezes with error " VPU has recovered with Blah Blah Blah". I saw this problem in other thread and it was memory related, but mine seems to be fine according to memtest86.
Athlon 64 3000+ winnie 278x9 @ 2.5, memory 206Mhz-ish
My bios is as follows: A8V Delux rev2 1009.. HT 4x, mem 2.5,4,4,7; fastwrite :Disabled, pci/agp 33/66; Vddr at 2.7 ( as soon as i set it to 2.8 when mem is below 206Mhz it doesn't post)

to recap the problems are:
HTT285+ ok except for games and futuremark benchmarks fail
memory set to 206+ computer resets or freezes even at HTT 210Mhz (2:1 mem ratio)
 

KTony

Junior Member
Jul 28, 2001
6
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"Common wisdom" is that 16A on the +12v line is pretty skimpy. Of course there many opinions as to what is enough. 20A is probably low end for OC. Games and 3D Mark failing when Memtest86+ doesn't may be because the video card and CPU are drawing more current then. I don't know how hungry the 8500 vid card is. Does it have an aux power connector?
I can't say for sure that PSU is your problem, but on some forums I read you would be getting dog-piled for trying to OC an A64 with a 350 watter.
 

brazzmunk

Member
Jan 6, 2005
187
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that is ineresting how PSU has to do with all that:).. I have my winnie running at htt295, it works great with ut2004 medium detail, (memory is set at 189) and 3dmark03 does that VPU graphic card dreadlock.

can someone provide me with link to forum about PSU and a64 overclock
 

KTony

Junior Member
Jul 28, 2001
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Oh, I see. You already had it at 2.5. That is strange. I had the idea that keeping it under 1000, or conservatively 800mhz would be fine. I hope the PSU thread is helpful.