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Help 2500k OC

Jdat

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Mar 2, 2012
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Processor i5 2500k
Motherboard Asrock z77 extreme4
Cooling Silver arrow
Memory Gskill RX 2x4GB DDR3 1600mhz CL9
Video Card(s) 5870
Storage Samsung 830 64GB + 1TB HDD
Power Supply Thermaltake 750w
#1
I just got a 2500k over a 3570k for overclocking. I can run it at 4.9GHz at 1.28v 2h prime stable (I didn't have much time to test..).

Settings:
- 1.4v vcore with level 5 LLC -> On full load goes down 1.28v
- 1.2v vtt
- 1.8v pll
- 1.5v Vdram

Temps below 60ºC
The problem is reaching 5GHz, even with LLC off. Windows just freezes on boot. No bsod.
Any suggestions? :)
 
Last edited:

cadaveca

My name is Dave
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#2
I just got a 2500k over a 3570k for overclocking. I can run it at 4.9GHz at 1.28v 2h prime stable (I didn't have much time to test..).

Settings:
- 1.4v vcore with level 5 LLC -> On full load goes down 1.28v
- 1.2v vtt
- 1.8v pll
- 1.5v Vdram

Temps below 60ºC
The problem is reaching 5GHz, even with LLC off. Windows just freezes on boot. No bsod.
Any suggestions? :)
"PLL Overvoltage" to get the higher multi working, might also want to change LLC level so that what you set for voltage is what you get.

freezing during windows boot with windows logo showing, is usually dead multi. PLL OVervoltage can bring it back to life. iIf it's after the logo has disappeared, or BSOD, it might be something else.
 

Jdat

New Member
Joined
Mar 2, 2012
Messages
14 (0.01/day)
Likes
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Processor i5 2500k
Motherboard Asrock z77 extreme4
Cooling Silver arrow
Memory Gskill RX 2x4GB DDR3 1600mhz CL9
Video Card(s) 5870
Storage Samsung 830 64GB + 1TB HDD
Power Supply Thermaltake 750w
#3
Yes, it freezes on the boot windows logo. I also tried 49x102.1. Same results..
When I get home, I will try an higher pll.
Thank you :toast:
 

Jdat

New Member
Joined
Mar 2, 2012
Messages
14 (0.01/day)
Likes
0
Processor i5 2500k
Motherboard Asrock z77 extreme4
Cooling Silver arrow
Memory Gskill RX 2x4GB DDR3 1600mhz CL9
Video Card(s) 5870
Storage Samsung 830 64GB + 1TB HDD
Power Supply Thermaltake 750w
#4
Currently at 5.2GHz with 1.4v :)
I got rid of the freeze when I disabled the virtu multimonitor mode. PLL voltage actually helped lower the vcore a little bit. Vtt at 1.25v

Temperatures below 70º under prime95

Do you think it's safe for 24/7? I don't have many experience on chip's degradation..