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955BE Good or Dumb overclock? - Page 4

post #31 of 48
Quote:
Originally Posted by crabby654 View Post
Oh I changed up to a H50 for the novelty of water cooling haha. But thanks! I am still tweaking some things, like memory overclocking. I've been told OCing 8Gbs on amd mobos is a bit tricky.
It's not so much the motherboard as it is the CPU these days. As I mentioned, the CPU has an Integrated Memory Controller (IMC or CPU/NB) that handles the RAM. Your Deneb x4 should be alright at 4 sticks if it is a C3 stepping. Thuban x6 processors are a bit better, I hear.
    
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post #32 of 48
Thread Starter 
Ya, I think I may wait till the bulldozer I think it is? Comes out and poke around at that and see what it's all about. I honestly have not read much about that processor yet.
post #33 of 48
Bulldozer is supposed to be pretty sweet, at least that is what all the hype is about.
    
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post #34 of 48
Well 4Ghz stable is great on simple air/water setup for a 955 BE. My 965 BE struggles to be stable at anything a touch over 3.8Ghz ;/. However IMC is respectable with my NB at 2760Mhz and RAM 6-6-6-18 1400Mhz. I've been very tempted to grab a 975 BE and shoot for 4.2+ but its smart just to hold off for now until Bulldozer arrives.
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post #35 of 48
Thread Starter 
Right now my overclock is:

955 BE @3.8Ghz @1.425v
Northbridge @2600Mhz @1.200v

My original OC in this thread wasn't stable, the above is stable for 5 runs of IBT on max and 1.5 hours of Prime95 (i havent gone past 1.5 hours because I had to do something on my comp >< )
post #36 of 48
Quote:
Originally Posted by crabby654 View Post
Right now my overclock is:

955 BE @3.8Ghz @1.425v
Northbridge @2600Mhz @1.200v

My original OC in this thread wasn't stable, the above is stable for 5 runs of IBT on max and 1.5 hours of Prime95 (i havent gone past 1.5 hours because I had to do something on my comp >< )
Looks good so far. That's pretty low voltage for the CPU/NB--that's great! I need somewhere between 1.25v to 1.3v for 2600Mhz.
    
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post #37 of 48
Thread Starter 
Question, when the NB is unstable would I get a BSOD? or a worker stopping in Prime95? or a freeze?

I might leave P95 on tommrow while at work for 8 hours. Just curious to see what I would be instore for when I get home and my computer is restarted maybe.
post #38 of 48
Quote:
Originally Posted by crabby654 View Post
Question, when the NB is unstable would I get a BSOD? or a worker stopping in Prime95? or a freeze?

I might leave P95 on tommrow while at work for 8 hours. Just curious to see what I would be instore for when I get home and my computer is restarted maybe.
Hard to say. I have always understood BSODs as memory instability...That would include the CPU/NB which controls the memory. I think worker freezes are normally CPU related, but someone should affirm/correct me on that one.
    
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post #39 of 48
Thread Starter 
I sort of wanna bump my CPU/NB volt to 1.300v but hmm maybe I should wait till tommrow when I get home from work to see if 1.200v works.
post #40 of 48
Ive just bumped my stable 4030 OC up to the screenie, I bumped up the Bus from 206 to 213 to get my ram where it likes at 1704mhz. The cpunb wnet into the 2700's from 2600's I knocked the cpu multi down 1 to 19x, the HTLINK I knocked down to 1917.

I got worker stopped 3 mins into prime, i bumped the CPUnb V up one notch from 1.206250, worker still stopped this time 20 mins into prime. So I knocked the cpunb V up another notch to 1.215625, now stable again for 3 prime hours.

If the 3rd notch up didnt do it I was goimg back to two notches up and one on Dram V....But seems ok atm.
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