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I5 2500k 4.5ghz oc questions

post #1 of 8
Thread Starter 
Hey, I am running p8p67 pro, 4gb 1333mhz 7-7-7 g skill ram, haf x and i5 2500k. Using nh-u12p se2 cooler with the two fans.

Vcore manually set to 1.24

So far I ran 20 tests of IBT V2.5 with max level. Successful

Currently doing prime 95 small ffts about 4 hours so far.

Max core temp for IBT was 58 60 56 56

Also, do some of you guys have core 1 hotter than core 0? Is this normal?

Wondering if 24 hrs of small ffts is stable. Also, what about prime 95 blend test or large ffts. Which do you guys use?

Did I get a good batch of the i5 2500k, 1.24v 4.5ghz. What are your voltages?

Edited with more info
Edited by John_w - 4/18/11 at 6:44pm
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i5 2500k P8P67 PRO XFX 6850 DUAL FAN 4GB RIPJAWS 1333MHZ 7-7-7-21 
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7200.12 500GB NCQ LG 22 WINDOWS 7 64BIT SAMSUNG BX2431 
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My System
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CPUMotherboardGraphicsRAM
i5 2500k P8P67 PRO XFX 6850 DUAL FAN 4GB RIPJAWS 1333MHZ 7-7-7-21 
Hard DriveOptical DriveOSMonitor
7200.12 500GB NCQ LG 22 WINDOWS 7 64BIT SAMSUNG BX2431 
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OCZ 750W FATAL1TY HAF X RAZER COPPERHEAD 
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post #2 of 8
Hey and welcome to OCN, I would take a look at the stable sandy club on my sig to see what others are running as a 24/7 That should help you determine what temps and voltages others are using.
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it looks alive
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i5 2500K [5ghz 1.44v 24/7] Asus Maximus IV Extreme SLI GTX 460 @ 920/1840/4100 [1.11v] 4GB Dominator GT @ 2133mhz CL8 [1.65v] 
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post #3 of 8
Do small FFT every time. You only need to run for 12 hours. best of look mate and nice overclock!
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Intel 3930K 4.5GHz HT GIGABYTE GA-X79-UP4 AMD R9-290X GEil Evo Potenza DDR3 2400MHz CL10 (4x4GB) 
Hard DriveCoolingCoolingCooling
Samsung 840 Pro 120GB EK Supremacy (CPU) NF F12's P/P (360 Rad)  NF A14's (420 Rad)  
CoolingCoolingCoolingCooling
XSPC Chrome Compression Fittings EK RES X3 150 Primochill PremoFlex Advanced LRT Clear 1/2 ID EK-FC (R9 290X) 
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EK D5 Vario Top-X  Phobya G-Changer V2 360mm Phobya G-Changer V2 420mm Win 10 x64 Pro 
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post #4 of 8
Thread Starter 
Thanks for the warm welcome guys.

I will overclock further to just test out what fps I get with games I play once I get a better graphics card and new monitor. (these 2 weeks). From what I've read 4-4.2ghz is more than enough for playing games at fluid fps. So right now I'll just stick at 4.5ghz after I run the prime95 small ffts for a few more hours.
My System
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CPUMotherboardGraphicsRAM
i5 2500k P8P67 PRO XFX 6850 DUAL FAN 4GB RIPJAWS 1333MHZ 7-7-7-21 
Hard DriveOptical DriveOSMonitor
7200.12 500GB NCQ LG 22 WINDOWS 7 64BIT SAMSUNG BX2431 
PowerCaseMouse
OCZ 750W FATAL1TY HAF X RAZER COPPERHEAD 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k P8P67 PRO XFX 6850 DUAL FAN 4GB RIPJAWS 1333MHZ 7-7-7-21 
Hard DriveOptical DriveOSMonitor
7200.12 500GB NCQ LG 22 WINDOWS 7 64BIT SAMSUNG BX2431 
PowerCaseMouse
OCZ 750W FATAL1TY HAF X RAZER COPPERHEAD 
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post #5 of 8
Thread Starter 
So I got an error on 23th hour prime 95 small ffts. Anyone know what it is?

I ran 4.5ghz at 1.235v bios 1.26 max voltage by hwmonitor

My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k P8P67 PRO XFX 6850 DUAL FAN 4GB RIPJAWS 1333MHZ 7-7-7-21 
Hard DriveOptical DriveOSMonitor
7200.12 500GB NCQ LG 22 WINDOWS 7 64BIT SAMSUNG BX2431 
PowerCaseMouse
OCZ 750W FATAL1TY HAF X RAZER COPPERHEAD 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k P8P67 PRO XFX 6850 DUAL FAN 4GB RIPJAWS 1333MHZ 7-7-7-21 
Hard DriveOptical DriveOSMonitor
7200.12 500GB NCQ LG 22 WINDOWS 7 64BIT SAMSUNG BX2431 
PowerCaseMouse
OCZ 750W FATAL1TY HAF X RAZER COPPERHEAD 
  hide details  
Reply
post #6 of 8
seems close to stable, bump the vcore a notch
post #7 of 8
Thread Starter 
Update: I did not update to SP1 yet does that make a difference?

I will bump it up by 0.10 now.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k P8P67 PRO XFX 6850 DUAL FAN 4GB RIPJAWS 1333MHZ 7-7-7-21 
Hard DriveOptical DriveOSMonitor
7200.12 500GB NCQ LG 22 WINDOWS 7 64BIT SAMSUNG BX2431 
PowerCaseMouse
OCZ 750W FATAL1TY HAF X RAZER COPPERHEAD 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k P8P67 PRO XFX 6850 DUAL FAN 4GB RIPJAWS 1333MHZ 7-7-7-21 
Hard DriveOptical DriveOSMonitor
7200.12 500GB NCQ LG 22 WINDOWS 7 64BIT SAMSUNG BX2431 
PowerCaseMouse
OCZ 750W FATAL1TY HAF X RAZER COPPERHEAD 
  hide details  
Reply
post #8 of 8
Nah, I don't think that would change much, if anything. BIOS has more to do with it. Your OC is pretty baller. I can't get 4.5 with anything less than 1.3v. Enjoy.
    
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Phanteks Eclipse P400w 
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CPUMotherboardGraphicsRAM
i7 6700k ASUS z170-e EVGA 1080 SC ACX 3.0 G.Skill 32 GB  
Hard DriveOSMonitorPower
Samsung 950 m2.a SSD  Windows 10 Acer Predator xb271hu Corsair 850ax 
Case
Phanteks Eclipse P400w 
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