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3800+ overclock

J

Juz

n00b
Joined
Jul 29, 2005
Messages
3
Hi guys need some help.

I have an A64 3800+ Venice in an Asus A8N SLI Deluxe mobo. I've overclocked it to 2807 Mhz (233 Mhz fsb). Its perfectly stable under prime95/Super prime 2004 and temps are good, 32 idle and about 44 under load. The only problem I've got is that when I boot up it doesn't fully POST and gives me a "System failure due to cpu overclocking" error. If I then go into the bios and straight out again without changing anything it boots up/starts fine. It shouldn't be a ram problem cause I'm using twinx 4400 which is good upto at least 275Mhz fsb and I tried changing the vcore to see if that helps, I've now got that set on "Auto" to let the mobo manage it its self but nothing seems to help. I'm overclocking manually not using AI or NOS.

Anybody got any ideas?
 
try adjusting your timings...if you have tight timings they may cause such issues according to my experiences.
 
I started having the same issue when I went to 2 x 1gb ram. Not every time I reboot, just randomly. In order to keep a mem speed of 230+, i had to loosen the timings to 2.5-3-3-8, so I said screw it, and went to a ~200mhz ram speed with 2-2-2-5 timings 9x cpu multi.

I've heard this has been a problem on the a8n-sli dlx boards. At least I can still keep my oc, just my ram is around stock speed instead of 230-235mhz.
 
memtest is your friend.

I've weeded out several sticks of memory that didn't play well together in one system, but mixed and matched were okay in another system.

Run memtest on the OCed memory to see what's up.
 
I've run memtest for hours on these, and the corsair ram I just rma'd. It's just a problem with this mb. They work great in my neo2 plat board. Good thing ram speed has virtually no effect on real world performance :D
 
Cheers guys, seems you're all in agreement - its a ram problem.

Its funny you should say that spoogemonkey, I had heard elsewhere that the twinx 4400 ram didn't sit well in this mobo. Should have listened before I bought :mad:
 
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