@teppic and martini - FX6350 oc'ing upgrade from 8150

How long are you testing for?

Chuck it under some AVX instructions ; Latest Prime 95 on Blend or IBT Maximum RAM latest.

I'd be very surprised to see IBT not crap its pants at 5.2GHZ.
If it doesn't? You've got a very good chip.
 
teppic said:
If you're increasing the bus speed it'll be increasing the memory speed, which might be making it unstable.

5.2GHz is impressive. Are all the cores staying at 5.2GHz under load? Do some benchmarks :)
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Been running AIDA for 20 minutes now. Temps are at 57 and holding. Keeps visiting 58 and then coming down so looks like I've got the cooling capacity. Has crept from 50. Down to 56 now.

Even under locking the ram to what the auto setting sets it to causes problems. No idea why. It's happy at auto so it can stay there. Ram tuning may need attention.

100% not throttling. It actually gets faster, rises to 5.224. :D

CineBench score is 6.3 @ 58c. :).

I'll play some games in a bit now I know its stable and see if it is really stable.
 
Martini1991 said:
How long are you testing for?

Chuck it under some AVX instructions ; Latest Prime 95 on Blend or IBT Maximum RAM latest.

I'd be very surprised to see IBT not crap its pants at 5.2GHZ.
If it doesn't? You've got a very good chip.
Click to expand...

20mins so far. I'll get IBT. That's intel burn tester isn't it? I've got prime so will run that as well. I thought I was onto something when straight out the box it was boosting to 4.4 which people struggle to get to OC'ing. Rated boost is 4.2. :)
 
There's stable and stable - 8 pack's recommendation is if everything you actually do is fully stable, then that's all you need to care about. The reason being that stress tests don't use the machine in the same way as you would normally. I agree with that, though I'd want to run Prime95/AIDA for at least 30 mins without a problem.
 
Minor problem. Restarted the computer and now it'll only let me load startup repair and won't find my partition with the OS on, nor will it let me schedule a chkdsk. Tink I might have corrupted my installation. Fortunately, I've two more drives that are sat blank at the moment. Can create a partition on them and install a new OS without losing any data. My last backup doesn't include one or two pieces of work I don't want to lose.
 
teppic said:
There's stable and stable - 8 pack's recommendation is if everything you actually do is fully stable, then that's all you need to care about. The reason being that stress tests don't use the machine in the same way as you would normally. I agree with that, though I'd want to run Prime95/AIDA for at least 30 mins without a problem.
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I agree totally with that. My 8150 would prime at 4.8 ghz but on air cooling, it would just cook straight away. However, day to day, never crashed and never got hot.
 
Reset the overclock and try booting before you try anything else. Simply overclocking will normally just cause a BSOD, not that kind of thing.
 
You should probably ditch your FX8150 on the famous auction site,to recoup part of the cost of your FX6350. There a is zero insertion fees promotion this weekend.

teppic said:
Piledriver does help with minimums, not entirely sure why.
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Look at DiRT3 where an FX8350 is 26% faster than an FX8150 on average,and has 20% higher minimum framerates. The FX8350 is only clocked 5% to 10% higher than an FX8150 too.
 
Also in this Crysis 3 benchmark there's a big increase in minimums too between the 6100/8150 and 6300/8350. It seems to be common in comparisons.

0nIkCAb.jpg
 
Keeping the 8150 and building a second backup work system/local server.

Hate corrupting the OS. It's happened twice in the space of two weeks now. Going to get the 5.1Ghz stable and leave it at that. I think that's a pretty impressive overclock.
 
I've got the CPU rock solid stable at 5GHz. Passing ITB with 35 GFlops in 25 seconds. I can get more, I know I can, but, I'm going to need 1.6v and more cooling. I can keep it cool running my 4 AF120 rad fans at 12v but the noise in ridiculous.

I also think that my RAM & VRM need cooling and my PSU needs replacing. I have a 6 rail supply! Voltage on the CPU rises by a few clicks, set at 1.55 it reaches 1.59, nearly 1.6.

As soon as temps touch 70 degrees, these CPUs crash is what I've found. And they need volts. I'll start a new thread with BIOS setting for 5Ghz and benchmark results tomorrow.
 
1 pass of IBT isn't rock solid stable :p

But it's certainly a start.

Also, at 25 seconds, was that standard? Try Maximum.

Also, think you've got confused about PSU's, PSU's have multiple rails, it's the 12V that I'm on about, that can sometimes be a quad rail etc, I've never seen a hex rail for 12v, so check how many 12v's it has.
 
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5GHz is very good going still.

I'm not sure what's happened to your drives though. In all the time I've overclocked (which has led to plenty of crashes/lock ups) with either Intel or AMD I've never once had a corrupted OS.
 
teppic said:
Also in this Crysis 3 benchmark there's a big increase in minimums too between the 6100/8150 and 6300/8350. It seems to be common in comparisons.

0nIkCAb.jpg
Click to expand...

Looking at this it's hard to tell how many cores Crysis 3 uses.

The scores for the 8350 and 6300 scale perfectly based on clock speed. The extra cores seemingly make no difference. The 4300 though doesn't scale based on clock speed (are there architecture differences between the 8350/6300 and 4300?).
So you might think it uses more than 4 cores?
But if you then compare the 2600K and 2500K, they scale perfectly based on clock speed. The only thing here is that the 2600K isn't 8 core, just 8 threads, but still you'd expect some benefit.
 
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