3570k - strangely low 4.2 oc vcore, testing programs and high temps

[wincest]

Hello,
i've just changed my old q9550 to 3570k, Asus P8Z77-V, Corsair Vengeance LP 2x4GB 1600MHz. I've read some ib oc guides and i'm not sure i did it right. From what i read for 4.2Ghz i should have vcore around 1.2, and now i have it set at 1.040 and running LinX with AVX (jumping between 1.040 and 1.048). Previously completed LinX at 1.050 (jumping between 1.048 and 1.056) without errors, though i only tested it for 1h15mins. Changes i made in bios before i started oc:
Ai Overclock Tuner: X.M.P
Turbo ratio: 42
Internal PLL Voltage: Disabled
Spread Spectrum: Disabled
LLC: i left it on Auto
Should i make any changes to bios settings? I think i need to test with other programs or oc'ing went wrong and it didn't really oc, though cpu-z and realtemp are showing 4200Mhz. Which programs should i use and how should i test it to check if it is really stable without running one test for over 8hrs?

Also i think temperatures for such low vcore are a bit high, i'm using Thermalright HR-02, and zalman stg2 paste. I've tried reapplying stg but temp only decreased about 1-2°C. For currently running test (in Lynx) max temp was 69°C, for 1.080 was 72°C for 1.104 73°C. Is there anything in bios settings that can cause increased temperatures?

1.050:


1.040:


Sorry for such noobish thread

 

[bmwbaxter]

Try to test under prime 95 for 12+ hours with that voltage and see how it fairs.

If you have gotten a good chip there is nothing wrong with it requiring lower voltage.

 

[EarthDog]

What voltage is CPUz saying under load?

 

[bmwbaxter]

What voltage is CPUz saying under load?

1.040V underload in the second SS

 

[wincest]

What voltage is CPUz saying under load?

For current 1.040 - mostly at 1.040 and jumping from time to time for a second to 1.048. In first post second ss is under load when linx is running.

 

[EarthDog]

Pictures are blocked for me at the office unless they are hosted internally at the site... All I see (now) are "." (periods).

Every chip is different. I need 1.2v at 4.5Ghz (which is better than most?). So I would assume I need 1.1 or less around that area. Seems like you have a solid chip is all...assuming its actually stable.

 

[wincest]

Try to test under prime 95 for 12+ hours with that voltage and see how it fairs.

If you have gotten a good chip there is nothing wrong with it requiring lower voltage.

Pictures are blocked for me at the office unless they are hosted internally at the site... All I see (now) are "." (periods).

Every chip is different. I need 1.2v at 4.5Ghz (which is better than most?). So I would assume I need 1.1 or less around that area. Seems like you have a solid chip is all...assuming its actually stable.

Thanks for answers, i'm running currently Large FFT, will run small after - if this one finishes succesfully. I hope i won't get any errors

 

[EarthDog]

Small or Blend, Large is a PITA...

PS - P95 doesnt 'finish' it continuously loops through the FFT's. So do small for CPU for a couple hours, the blend for the system the same and you should be good to go.

 

[wincest]

Small or Blend, Large is a PITA...

PS - P95 doesnt 'finish' it continuously loops through the FFT's. So do small for CPU for a couple hours, the blend for the system the same and you should be good to go.

Ok, large stopped, will do that instead

 

[wincest]

Weird thing happened - my pc suddenly shut down. When i tried to boot it, it powered up for few secs (nothing on screen), powered down, powered up again and stayed with nothing on screen and red led on mobo lit up, suggesting ram problem. I switched off psu, touched mem radiators and they were rather hot. Eventually it did boot, with oc failed message. I went to bios, downclocked ram to 1333 from 1600 and bumped vcore to 1.045. Currently running p95 again. Any idea why that shutdown happened? If it was ram problem shouldn't there rather be bsod or some kind of error?

 

[Fever]

What kind of power supply do you have?

 

[wincest]

What kind of power supply do you have?

Modecom Volcano 1000w , bought it 5 years ago

 

[EarthDog]

1000W is brutal overkill for that system you have, but the concern there is the quality of the unit (no clue if its good or bad). I have to imagine it can at least put out HALF its rated output though.. which is still plenty for your system. Unless its going bad, that isnt the issue...