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Can't get stable past 4.5ghz 2500k - Page 2

post #11 of 17
Quote:
Originally Posted by bstover17 View Post
That is strange... I was able to hit right under 4.7ghz with 1.248v and never went over 66c. I still have plenty of room to go.

http://valid.canardpc.com/show_oc.php?id=1797432
Sounds sweet, you should run p95 blend to ensure stability. I can boot into Windows and do some stress test @ 5ghz 1.35v but it is not stable until 1.4v.
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post #12 of 17
Quote:
Originally Posted by Jasonn20 View Post
Sounds sweet, you should run p95 blend to ensure stability. I can boot into Windows and do some stress test @ 5ghz 1.35v but it is not stable until 1.4v.
I did a couple hours of p96 blend and also did intelburntest with 20 passes and 3dmark 10 twice.
    
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post #13 of 17
Quote:
Originally Posted by Jasonn20 View Post
Sounds sweet, you should run p95 blend to ensure stability. I can boot into Windows and do some stress test @ 5ghz 1.35v but it is not stable until 1.4v.
Just be careful running too much prime above 1.4v, especially if you are NOT on water cooling or better. Due to too much attempted priming, my chip degraded to the point where I need 1.248v load (used to be 1.236v) for 4.5 ghz and between 1.428-1.440v for 5 ghz (used to be 1.404-1.416v) with HT on. HT off still is fine at 1.380-1.392v. It's still a good chip (especially with HT off) but just runs hot...

I'm not trying to force or control anyone, but please watch the stress testing at high voltages, unless you have VERY good cooling. You might be better off just doing normal work unless you require mission critical operation (like folding).
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post #14 of 17
Thread Starter 
Yeah I am pretty happy staying at 4.5

I did get to 4.8 BTW. I was trying to do it with LLC off when I posted this thread. Got there at 1.41V so not bad but not good for 24/7.

I will stay at my 1.304v for 4.5
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post #15 of 17
yeah I'm at 4.8GHz with 1.38/1.39v

I might be able to go lower but when testing with IBT, my gflops had a high variance. Upping vcore to 1.39v stabilized it, and now I'm running prime 95 blend -- 3 hours into it.

Also passed 20 passes of IBT on high.
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post #16 of 17
Quote:
Originally Posted by Falkentyne View Post
Just be careful running too much prime above 1.4v, especially if you are NOT on water cooling or better. Due to too much attempted priming, my chip degraded to the point where I need 1.248v load (used to be 1.236v) for 4.5 ghz and between 1.428-1.440v for 5 ghz (used to be 1.404-1.416v) with HT on. HT off still is fine at 1.380-1.392v. It's still a good chip (especially with HT off) but just runs hot...

I'm not trying to force or control anyone, but please watch the stress testing at high voltages, unless you have VERY good cooling. You might be better off just doing normal work unless you require mission critical operation (like folding).
Are you using auto voltages by chance?

Was curious if I could still do this...

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My System
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CPUMotherboardGraphicsRAM
i7 2600k @ 4.6ghz HT 1.272v GIGABYTE P67A-UD4-B3 Sapphire HD5870 1GB G.Skill Ripjaws DDR3 1600 (2x2) 
Hard DriveOSMonitorKeyboard
X2 Western Digital Black Sata 500GB (RAID 0) Win7 Ult x64 ASUS 24'in VW246H Logitech 
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post #17 of 17
Vcore is fixed, as always. All other voltages are auto (they don't change from their default anyway).
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SB Rig
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WD 2 TB, WD 1 TB, 250gb Liteon ihbs212 blu-ray burner/reader XP+W7 Benq XL2720Z 
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Ducky Shine 69/Year of the Goat/Shine 5 Seasonic Platinum X1000 Corsair 760T Logitech G502 with r0ach approved ™ sensor 
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