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Haswell Overclocking Guide [With Statistics] - Page 1058

post #10571 of 19571
that strees test used to check the OC?

I have wanted to know which is the clock unclore, leave it in x38

x38 uncore ratio is good for x42?

Help?
post #10572 of 19571
%100 stabil



post #10573 of 19571
So does anyone use prime95 really anymore? I could get a stable 4.5 OC on XTU but only 4.2 on prime95. Plus prime95 got me up to 96C a few times.
post #10574 of 19571
So will it be good if i just add something like a 8600GTS for the graphics card to stress test my overclock and being able to disable the hd4600 integrated graphics?
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post #10575 of 19571
Quote:
Originally Posted by DiceAir View Post

So will it be good if i just add something like a 8600GTS for the graphics card to stress test my overclock and being able to disable the hd4600 integrated graphics?

Yea
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post #10576 of 19571
Quote:
Originally Posted by BenJaminJr View Post

So does anyone use prime95 really anymore? I could get a stable 4.5 OC on XTU but only 4.2 on prime95. Plus prime95 got me up to 96C a few times.

People do use it, but it can be brutal on temps & take a long time to fully test a cpu if running the regular blend setting, custom config could speed that up although I haven't been paying much attention to p65 testing.

If using the XTU stress test it isn't too stressful, the XTU benchmark is tougher to pass. The x264 looped benchmark used a lot in this thread is a better test than XTU stress.
    
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post #10577 of 19571
Quote:
Originally Posted by DiceAir View Post

ok cool so i'm just going to do some testings. What program should i use to stress test my pc? is it ok if I use memtest86+ for memory and aida64 for cpu.? When I run aida64 should i just stress test the cpu or memory as well?

just one more question. how would this cpu be at stock vs my old i5-2500k @ 4.7ghz. seeing as new games will make use of more threads maybe the i7 will help out. So what do you suggest is the way forward? I've just read the fine print and I cant return it cause it's already been used.

I have 2 choices and either one is fine.

1. I work for a family software company and they told me that they will be happy to buy the system for one of the lead developers to develop on. will be in a basic 450w psu with the ram, mobo an cpu not going to stress it to the max all the time.

2. I can use it on stock speeds if i tested it is working fine tomorrow.

BTW what volts average is required for 4.2GHz?

The chart in the OP shows 3 entries for 4.2GHz.

1) VID = 1.140v
2) VID = 1.245v
3) VID = 1.250v

I got 42 stable at 1.138v.
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post #10578 of 19571
Chart is biased towards bad chips on the low oc's and good ones towards high OC - because a bad chip is more likely to be clocked at like 4.2ghz and a good one at 4.7g+

my 40x prime stable is ~1.07
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post #10579 of 19571
I revisted my overclock with the following settings:

46x multiplier at 1.3v
uncore at 33x @ 1.15v
eventual input voltage @ 1.9v
ram at 1600mhz @ 1.5v

i tested using x264 and the 2nd pass it failed about 20% through bsod. I also was hitting about 98c bigeyedsmiley.pngwhistle.gif

llc was on auto and i ended up going back to x45 1.26v uncore @ 39x 1.2v eventual input voltage @ 1.66v x264 was stable hitting a max of 74c

im thinkin of just leaving it at 4.5ghz and trying to optimize this clock as i feel ive hit the boundary for this chip.
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post #10580 of 19571
Quote:
264 was stable hitting a max of 74c

1.26vcore to 1.3 shouldn't add 24c. You used 1.66 input? sure it was benchmarking correctly if it was that much cooler?

You're nowhere near chip limits, just too hot.
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