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Complete Overclocking Guide: Sandy Bridge & Ivy Bridge | *ASRock Edition* - Page 787

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post #7861 of 9531
Quote:
Originally Posted by ms228 View Post

Quote:
Originally Posted by chronicfx View Post

I run a 3570k with 3 x 290x and it handles them all very well. I don't think you will have an issue with two 670.
Quote:
Originally Posted by inedenimadam View Post

The 3570k is a fine chip for gaming. Very few games are threaded properly to take advantage of more cores. SLI 670s + 3570k makes for a good pairing.

Thanks for this guys - so the 1 WHEA error after 1 hour run on Prime 95 should not really give any issues? According to the guide, increasing the Turbo may stabilise the overclock further (maybe getting rid of the WHEA error), but the temps go up to around 95 Degrees Celsius in an hours run, when i tested with those settings, which is right at the limit according to the guide - do you think there are any other settings i could change to decrease the temps?
you should decrease your multiplier by 1. WHEA is a sign of instability, and your temps are close to throttle.
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post #7862 of 9531
Quote:
Originally Posted by inedenimadam View Post

you should decrease your multiplier by 1. WHEA is a sign of instability, and your temps are close to throttle.

or just up your Vcore a tad...
post #7863 of 9531
Quote:
Originally Posted by Cakewalk_S View Post

Quote:
Originally Posted by inedenimadam View Post

you should decrease your multiplier by 1. WHEA is a sign of instability, and your temps are close to throttle.

or just up your Vcore a tad...

yeah, but if he is hitting 95C, that is a little close for comfort, I couldnt recommend staying where he is without an upgrade to his cooling solution. Delliding is always a quick and free way to drop temps too, albeit, a bit risky.
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post #7864 of 9531
Quote:
Originally Posted by inedenimadam View Post

yeah, but if he is hitting 95C, that is a little close for comfort, I couldnt recommend staying where he is without an upgrade to his cooling solution. Delliding is always a quick and free way to drop temps too, albeit, a bit risky.

Thanks for that - i take it there is probably no other way of getting the temps down by changing the figures in the BIOS?

If not then i will prob just take it back down to 44 - it doesn't sound like the extra will be needed for gaming for a while yet.
post #7865 of 9531
Quote:
Originally Posted by Lucky 23 View Post

Set the multiplier to 48and leave offset/Turbo at +0.005/+0.004. What is your idle and full load vcore in CPU-z?

What CPU do you have?

Hey man,

It's an i5 2500k.
I set the multiplier to 49, running like this for a day or 2.

Idle:
CPU-Z: 1.040 -1.060 (constantly changing)
HWmonitor: around 27-32 Celcius when idle/low load. (just browser and background stuff)
after 2 days of permanently running and doing all of my regular activities ( including gaming etc etc) reported a max temp of 61 Celcius.

Full:
CPU-Z: 1.320-1.344, HWMonitor reporting a max of 1.360
HWMonitor: around 70-85 Celcius while running prime (88 Celc max on some cores (core0: 76 core1: 85 core2: 89 core3: 84)


So after all, under normal usage the temps won't go over 61 Celcius. Is this a healthy situation to maintain?
The only thing I did so far is change the multiplier to 49, nothing more. Can/should I fiddle around with other things to maybe extend the lifetime of my CPU?

Is there any reason I should go to 4.5Ghz instead of the current 4.9Ghz overclock?

Thanks!
post #7866 of 9531
Idle is a little high. The 2500k should be able to idle between .950v-1.00v. Are you using a +0.005 Offset?

Full load voltage looks low for a 49 multiplier. Did you stress the CPU on Prime 95?
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post #7867 of 9531
Quote:
Originally Posted by Lucky 23 View Post

Idle is a little high. The 2500k should be able to idle between .950v-1.00v. Are you using a +0.005 Offset?

Full load voltage looks low for a 49 multiplier. Did you stress the CPU on Prime 95?

I did some further testing,

The lowest I can see in CPU-z Idle is 0.968 V.

Yes, I'm using +0.005 Offset and + 0.0004, just as described in "The green test". I have no idea what this is doing though smile.gif

I did a 3h 12 minutes stress test in Prime95 (settings as described in the tutorial) and these were the results:

http://i59.tinypic.com/300sk15.png
post #7868 of 9531
I would try a negative offset to decrease your idle so that its closer to .968. Then increase turbo to stabilize you full load vcore

Temps are getting pretty high, try to keep them below 85c when stressing with Prime95. Which cooler are you using?
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post #7869 of 9531
Quote:
Originally Posted by Lucky 23 View Post

I would try a negative offset to decrease your idle so that its closer to .968. Then increase turbo to stabilize you full load vcore

Temps are getting pretty high, try to keep them below 85c when stressing with Prime95. Which cooler are you using?


I set the CPU offset to -0.0005 and increased the turbo offset to + 0.0008

Currently idle is giving me a voltage of 0.968 most of the time. I think I notice it staying longer at 0.968.

I have a Scythe Mugen rev. B installed.

According to the 3hr stresstest I can see that my temps under load are mostly around 70-75 Celcius?
post #7870 of 9531
Leave the offset at a -0.005 and turbo at a +0.008. Stress the CPU on Prime 95 blend.

If it fails, increase additional turbo voltage.thumb.gif

I had a Mugen 2 installed when i first got my 2500k. Even with push/pull you going to have a hard time stabilizing much over 4.5ghz. Mine would hit identical temps at that voltage.

Your not going to be able to stabilize 4.9ghz with that cooler. Most air coolers will only be able to handle around 1.3-1.35v so your going to need water cooling.

I would drop the multiplier to 46 or 45.
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Gskill RipJaws V 16GB 3000mhz Samsung 850 EVO 250GB Seagate Barracuda 2TB EK-Supremacy EVO CPU Water Block 
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EK R9 290X GPU Waterblocks EK-XRES 140 Revo D5 PWM Pump Alphacool NexXxoS 360mm ST30 Alphacool NexXxoS 240mm ST30 
CoolingCoolingOSMonitor
Alphacool NexXxoS 120mm ST30 Cooler Master Jetflo 120mm Fans Windows 10  LG 34UC88 
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