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965be oc'ed to 4.0, Now what?

post #1 of 23
Thread Starter 
So basically, I picked up a 6990 last week \\o/
freakin awesome (and maybe slightly loud) card, however. I'm now being made aware of certain limitations imposed on me by my cpu.
At stock in most game's im able to completely max the full 60fps out without an issue. However there are a few now where i've noticed issues with that. The most notable is GTA IV, (I upgraded from a 5670 btw). Anyways, with that card I obviously had to severely limit some stuff to keep under the 512MB memory limit. And as a result ended up going with some settings that gave me a respectable 20fps at 1080p with some decent effects. However, now that i've got this card i've noticed that despite now being able to max out the settings, i'm still not getting anything above 20fps. That and the 95% cpu usage during gameplay is leading me to believe that my cpu is actually the bottleneck here now.
Anyways, i decided to attempt an overclock.
First attempt was a disaster, (I had very little idea what I was doing, only previous OCing experience was taking an i7 930 to 3.3Ghz) I ended up somehow absolutely wrecking my windows install (i'd used the amd overdrive utility to bring it to like 3.9 (not using multipliers ) and I guess it locked it at that even after removing the program. so every time i'd start up, I got graphics artifacts like 15 seconds after logging in followed by a reboot. The whole ati driver set was completely messed. so here I am on a new clean windows install (also imaged incase I somehow repeat my mistakes).
2nd try was a lot better, I've now figured it out, i've got a reasonably stable OC, it's up at 4.0, Voltages are considerably higher than I'd like and Temps are Madly close to doing damage. So now I'm lookin for some advice.
I've got an H50, it works. On first test with it way back when, it removed a good 15C from my full load temps, got an additional 2-3 by adding another fan on the opposite side of the rad.
Upon getting this OC done, i'm still not completely stable, I can run up to like 80% capacity without incident, but under any stress test I can't last more than like 3 Minutes without bluescreening. (seems to do so as soon as i pass 62 Degrees with full load, with 80%ish i can make it to 65+ without it complaining, Eg gaming. I've already pushed my voltage past what i expected to need. Here's what its running at now Stock in parentesis.

HTT: 200
Multiplier: 20 (17)
HT: 2600 (2000)
NB:2600 (2000)
vCore: 1.565 (1.35)
NB V: 1.36? (1.1?)
Ram: 1333mhz (1333 for one set, other set is a little confusing. Product number indicates 1600 but all diagnostic tools are only reporting 1066 as max, I might try removing those later and see if that helps. Was stable at 1333 before I tried this OC)

At original stock settings, I get 35-48C temps
Now I'm getting 53-65+

So I guess my main concern is the Heat. Im way too close to the limit for comfort. If i'm right, fixing the heat should deal with the instability at 100% as well. Can't really confirm that yet. I've seen reviews where the h70 at full speed can get the temps down by almost another 10 beyond what an h50 can do. But at that point i'm actually considering building a proper water cooling loop. My case has the room for it, not to mention that it's getting retartedly loud in here. The 6990 is an ear-splitter and the rest of my fans aren't helping. Is it gonna be worth going through the whole setup for Liquid? or should I just sacrifice the 100mhz and drop myself down to a more manageable point and save the life of my processor.

I know i'll have more questions but I'll just throw that up for now, see if anyone's got some thoughts.
    
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post #2 of 23
1.565 Vcore?! Thats pretty steep for H50 isnt it?
    
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post #3 of 23
Thread Starter 
I was kinda wondering that myself, however anything lower than that I can't even start the stress test without a blue-screen. At that point i can make it a few minutes in.
    
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post #4 of 23
Quote:
Originally Posted by Cee View Post
1.565 Vcore?! Thats pretty steep for H50 isnt it?
That definitely is too high... Take it down to 1.45 and check it around there. Then try lowering it more; little bits at a time. My 965 is stable at 4.0GHz on 1.41V (1.35V in AMD Overdrive).
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post #5 of 23
Your not going to keep it at 4.0 with that kinda stability are you? Is it more stable at 3.8 with NBfreq at 28--?
post #6 of 23
Thread Starter 
Quote:
Originally Posted by frannyvox View Post
That definitely is too high... Take it down to 1.45 and check it around there. Then try lowering it more; little bits at a time. My 965 is stable at 4.0GHz on 1.41V (1.35V in AMD Overdrive).
At 1.45 I can't even start a stress test. In windows works fine however. But I get the countdown on OCCT and as soon as it finishes the 1 min wait. BAM, BS and Reboot.

Quote:
Originally Posted by blkdoutgsxr View Post
Your not going to keep it at 4.0 with that kinda stability are you? Is it more stable at 3.8 with NBfreq at 28--?
See, that's more an issue with my motherboard, I can't actually choose higher than 2600 NB. stock is actually 2000.
If need be i'll drop it down to 3.9, Shouldn't be as much of an issue down there, and I had it stable with like 1.42 there as well.
    
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post #7 of 23
Then rather drop it to 3.9GHz @ 1.42 IMO. It should take a lot of heat off the CPU and I don't think the performance gain between 3.8 and 4.0 is that huge TBH. But I'm not too sure, don't know enough to be able to tell you that.
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post #8 of 23
Quote:
Originally Posted by paintball9 View Post
At 1.45 I can't even start a stress test. In windows works fine however. But I get the countdown on OCCT and as soon as it finishes the 1 min wait. BAM, BS and Reboot.



See, that's more an issue with my motherboard, I can't actually choose higher than 2600 NB. stock is actually 2000.
If need be i'll drop it down to 3.9, Shouldn't be as much of an issue down there, and I had it stable with like 1.42 there as well.
You have a BE chip though.. You can do a combined multi/FSB OC... Ive always found that you can squeeze more out of the chip if you do this. Set the multi to 19 and up the FSB until you start getting BSOD doing 15min prime inbetween each. This will up your NB and your CPU freq with your limited multi on the NB. Keeping your ram and HTLINK around stock will help if you use this method
post #9 of 23
Thread Starter 
Quote:
Originally Posted by blkdoutgsxr View Post
You have a BE chip though.. You can do a combined multi/FSB OC... Ive always found that you can squeeze more out of the chip if you do this. Set the multi to 19 and up the FSB until you start getting BSOD doing 15min prime inbetween each. This will up your NB and your CPU freq with your limited multi on the NB. Keeping your ram and HTLINK around stock will help if you use this method
Might have to try that tomorrow, Was hoping to avoid that due to the disaster setup ive got with ram right now. Stuff was much slower than I'd hoped. and as much as it might help keep it stable higher, i'd rather keep the full 12Gb ram.
    
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post #10 of 23
Just curious, but what is said computer used for? will the 12GB of ram benefit you?
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