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Complete Overclocking Guide: Sandy Bridge & Ivy Bridge | *ASRock Edition* - Page 55

Poll Results: Was this guide helpful?

Poll expired: Oct 17, 2012  
  • 80% (237)
    Yes (and I DO have an ASRock motherboard).
  • 15% (45)
    Yes (but I DO NOT have an ASRock motherboard).
  • 2% (7)
    No (and I DO have an ASRock motherboard).
  • 2% (7)
    No (but I DO NOT have an ASRock motherboard).
296 Total Votes  
post #541 of 9471
Thread Starter 
Quote:
Originally Posted by toothman View Post

Hello everyone, I just got my new 2500k and z68 Extreme3 Gen3 and am working on finding my 24/7 overclock. I'm trying to hit 4.5Ghz because in the Passmark Performance Test, the benchmark scores at ~9100, which is in fact over 9000. It is important to me that my overclock is over 9000.

However, @4.5Ghz keeps failing "very high" Intel Burn Tests. Standard and high succeed. My settings, at 4.5Ghz:
LLC 2 and 3 both tried
Offset: +.010 to +.020
Max Temp: 80°c

Just tried a very high test with .020 and LLC3 and BSODed during the 5th pass =/
Any ideas? Should I just keep bumping up the offset? I'd like to see a stable 4.5Ghz before going to bed tonight.

EDIT: Yes, 44 passes. 44 appears completely stable.

Question about Intel Burn Test: I'm unable to begin a maximum stress test. When I try, I get the error message that I do not have enough available RAM to perform the test. I have 8gb of RAM in my system now, and in fact with my previous motherboard/CPU I used the exact same two DIMMs and had no issues running IBT at maximum. Is this a sign of a problem in my system or is it a problem with IBT?

Just my opinion, but don't use IBT to test for stability. Use prime95 blend custom.

The reason IBT says you don't have that much RAM available is because your OS is using some of it. Go into task manager and go to the performance tab. There you can view on the bottom left how much "free memory" you have available. The processes tab will tell you which programs are using it up.

A good rule of thumb is to only test with about 80% of installed RAM. So in your case use 6400MB or 6GB. (Without any programs running of course.)
Edited by kennyparker1337 - 5/12/12 at 4:14am
post #542 of 9471
Just got 4.5Ghz to pass IBT "very high" test. Gonna Prime95 test it tomorrow. If it's stable, then this is my new 24/7 overclock.

So Prime95 is better than IBT, and I've always used IBT as sort of a "quick test" then followed up with a longer Prime95 run. Anything wrong with that practice or am I better off just using Prime95 only for both?
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post #543 of 9471
honestly none of them are say better.. just some people prefer one or the other I use both but i mostly just game and do other stressful things to see how it's stable i'v read and had things stable in one but not the other a lot. So use what ever you feel like using and at the end of the day its the games and programs you use that will stress your computer the best.
post #544 of 9471
Thread Starter 
Quote:
Originally Posted by toothman View Post

Just got 4.5Ghz to pass IBT "very high" test. Gonna Prime95 test it tomorrow. If it's stable, then this is my new 24/7 overclock.

So Prime95 is better than IBT, and I've always used IBT as sort of a "quick test" then followed up with a longer Prime95 run. Anything wrong with that practice or am I better off just using Prime95 only for both?

Thats a good practice. As long as you aren't using IBT exclusively.
Quote:
Originally Posted by Nw0rb View Post

honestly none of them are say better.. just some people prefer one or the other I use both but i mostly just game and do other stressful things to see how it's stable i'v read and had things stable in one but not the other a lot. So use what ever you feel like using and at the end of the day its the games and programs you use that will stress your computer the best.

That used to be true. But for Sandy Bridge and on, it actually puts more stress on the CPU than needed. So the test can fail extremely easy, even though the system is stable by normal standards. Even worse, one can actually pass IBT and be unstable. The program just seems to ramp the temps up to max, but not actually "test" it for stability.

120x120px-LS-6591c276_1302329541962.jpegProfessor Dog, Ph. D, agrees too!
post #545 of 9471
Unfortunately, my BIOS doesn't seem to have a lot of these settings, but it does have an automatic overclock feature, which maxes out at 4.5 GHz (at least it's stable...). I'd like to try for higher, or at least the same with a lower voltage, but since I can't find most of the settings, I can't get the computer to boot if I just change the ones I can find, so I'm clearly doing something wrong. But I'm not sure what. I have an Intel DP67BGB3 mobo, i7 2700K, and 8GB (2x4) of 1600 RAM.

I'm not sure how to take a screen grab of the BIOS screens...do you just use a camera to take a pic of the screens?

Thanks!
post #546 of 9471
Quote:
Originally Posted by Moonshae View Post

Unfortunately, my BIOS doesn't seem to have a lot of these settings, but it does have an automatic overclock feature, which maxes out at 4.5 GHz (at least it's stable...). I'd like to try for higher, or at least the same with a lower voltage, but since I can't find most of the settings, I can't get the computer to boot if I just change the ones I can find, so I'm clearly doing something wrong. But I'm not sure what. I have an Intel DP67BGB3 mobo, i7 2700K, and 8GB (2x4) of 1600 RAM.
I'm not sure how to take a screen grab of the BIOS screens...do you just use a camera to take a pic of the screens?
Thanks!

1. List computer spec and details including of course full motherboard specs.
2. Plug a usb drive into computer and you can press i think F12 to take screenshots while in the bios and it saves onto the usb drive in png or random format then convert to JPG for upload,
post #547 of 9471
Thread Starter 
Quote:
Originally Posted by Moonshae View Post

Unfortunately, my BIOS doesn't seem to have a lot of these settings, but it does have an automatic overclock feature, which maxes out at 4.5 GHz (at least it's stable...). I'd like to try for higher, or at least the same with a lower voltage, but since I can't find most of the settings, I can't get the computer to boot if I just change the ones I can find, so I'm clearly doing something wrong. But I'm not sure what. I have an Intel DP67BGB3 mobo, i7 2700K, and 8GB (2x4) of 1600 RAM.

I'm not sure how to take a screen grab of the BIOS screens...do you just use a camera to take a pic of the screens?

Thanks!

cryingsmiley.gif Sorry but this guide was intended mainly for ASRock boards as noted in the title and the huge title image.

All though your board should have similar settings, they will all be in different locations. They may also be named different.

If the below image is correct, that should control the voltage of your CPU. "Under" meaning idle, and "Over" meaning active/in-use. I would just leave "Under" alone and mess around with the "Over" voltage. There must be some easy way to get to this page via the Configuration tab.

bios15.png


Here's another page that has similar settings... I would use this page before the other one...
375
Edited by kennyparker1337 - 5/12/12 at 2:22pm
post #548 of 9471
Have you guys found it better to overclock in offset mode or fixed?
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Hard DriveOptical DriveCoolingMonitor
Seagate Barracuda 500GB 7200 RPM 16MB Cache SAT... ASUS 24X DVD Burner COOLER MASTER Hyper 212 Plus Hanns-G 27.5'' 3ms WideScreen LCD 1920x1200 res... 
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post #549 of 9471
Thread Starter 
Quote:
Originally Posted by toothman View Post

Have you guys found it better to overclock in offset mode or fixed?

Better is up for opinion.

Offset = Less power usage overall. Very Little chance of a BSOD from changing voltages.

Fixed = Full power usage all the time. No chance of BSOD; max voltage all the time.

Personally I have found no fault with Offset mode. So I would consider it "better" as it keeps my power usage down and saves on the electric bill.
post #550 of 9471
Hello,

I'm new to OC, but after i spent few hours reading around here i tried myself on my i5 3570k

From start i wanted to go ~4.7 (i don't want more.. 4.7 seems a nice number tongue.gif).

Seems i managed to get "stable" (i didn't do more than 15 minutes of prime95 tests, will do later to see if i need more voltage) with an offset of 0.080v

http://valid.canardpc.com/show_oc.php?id=2367170
vcore shows 1.208 (and i see sometimes go up to 1.216)

Now, my only problem is that i see that lately (even without OC) one of my core is getting +10 or event +15 temps over another.

For example, idle:
core 0: 27C
core 1: 34C
core 2: 31C
core 3: 30C
(in idle the dif is not that high, but core 0 is alot under core 2, and core 2 all the time the highest)

with prime95 i was:
core 0: 52C
core 1: 68C
core 2: 64C
core 3: 64C
Ofc, not all the time, the temps are varying... but from time to time (at every 30 secs for example, core 0 is getting way bellow core 2)
Max temp hitted was that 68C on core 1

Should i be worried? Is something wrong with my cpu?

I don't really understand the idle mode (i have intel speed enabled). CPU-Z is showing the CPU is going down to 1.6 but on Core Temp i see the CPU changing between 3.4-4.2 wich may explain why i see the voltage used: 1.032v-1.152v

LE:
i'm uploading an screenshot. not really clear the diff in temps between cores but you can see that core#1 is going up to 66 and core#0 only at 58

another question is about VID. I don't understand why is 1.1659 (and i see it fluctuates.. if gets 1609 then 1659) and when i stop prime95, and the proc is idle the VID is going up to 1.859. maybe i don't understand, but i beleived VID should be lower at lower cpu speeds

a question on prime95. i see that some cores are making the tests a little faster... not same cores. sometimes 2 cores remain behind a little, sometimes only one core..

349
Edited by adrianmatei - 5/12/12 at 7:24pm
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