Diminishing overclocked speed

Nebulous

I've been noticing every once in a while my rig would either lock up or just plain out crash and reboot. I checked my temps and my swiftech cpu block wasn't doing the job, so i spent most of yesterday gutting out the cyclops to swap out blocks. Got the DD maze3 back on and temps seem better, but my problem did'nt go away. I had to downclock from 3.6Ghz to 3.4Ghz. I took a peek at MBM5 and my dam 3.3v rail on my psu is dropping severly

My board is vmodded. I have the Vdimm mod to raise the voltage from the whimpy max of 2.85v up to a meaty 3.3v and also the vcore droop mod. The mod stabilizes the vcore fluctuations so the cpu gets a nice steady flow of current . The 3.3v line is what feeds the voltage to the ram. if it dips below a certain point the ram will starve and natrually the pc will crash or lock up at high FSB's.

I was wondering why cyclops was crashing and locking up, but could'nt pinpoint the problem. Last night while i was running cyclops under loads, i quickly checked MBM5 again and sure enough found the culprit. My psu's +3.3v rail sank all the way down to 3.17v . Looks like surgery time . I'll have to open up cyclop's heart (psu) and do a voltage bypass lol.

I'll post pics of the mod here

phlip

I had a similar problem with my epox 8rda when i first got it the mem voltage wopuldnt chane when i adjusted it...its was stuck at 3.3v hehe naturaly i was happy hitting a max bus of 230 with maxtimings!but after a while the voltage for the mem dropped to 2.5 whcich is teh sucks.....but now i have a and abit nf7 mobo and am running my xp2600 at 2.2ghz and a bus of 4oo ddr......dam motherboard crapped out all toghether the otherday....

stoopid

Well, you could find some of that Bh5 memory and then you won't need the run your vdimm past 3.0/3.1v