Need help.

Surveyor · 22 Apr 2011 at 16:28

64 bit:

http://majorgeeks.com/Prime95_d4363.html

32 bit:

http://www.softcns.com/utilities/review-prime95_50494.html

Sjdeany · 22 Apr 2011 at 16:35

thanks a lot surveyor, im struggling to understand the RAM readings in CPUz

under memory tab it says dram freq - 798 and fsb:dram 1:6

Im assuming im missing something but shouldnt it display as 1600mhz?

Sjdeany · 22 Apr 2011 at 16:36

how long do i need to run this blend test? seems to be working fine so far

Surveyor · 22 Apr 2011 at 16:39

Sjdeany said:
thanks a lot surveyor, im struggling to understand the RAM readings in CPUz

under memory tab it says dram freq - 798 and fsb:dram 1:6

Im assuming im missing something but shouldnt it display as 1600mhz?

No, as it's DDR (Double Data Rate) CPU-Z will display 800MHz and that means your RAM is correctly running at 1,600MHz (2x800).

Sjdeany · 22 Apr 2011 at 16:40

cheers my temps are 43 max

not too shabby, although i still want to get 4ghz stable at some point

Surveyor · 22 Apr 2011 at 16:42

Sjdeany said:
how long do i need to run this blend test? seems to be working fine so far

I would leave it running as long as you're comfortable with.

If you've no errors after 30 minutes to an hour you can be 99% certain that all is well.

If any problems arise when you actually start to use the PC you can always revisit the memory voltage.

Sjdeany · 22 Apr 2011 at 16:42

"turture text completed 10 tests in 9 minutes- 0 errors, 0 warnings"

ran 4 of them

MumboJumbo · 22 Apr 2011 at 16:46

Surveyor said:
I would leave it running as long as you're comfortable with.

If you've no errors after 30 minutes to an hour you can be 99% certain that all is well.

If any problems arise when you actually start to use the PC you can always revisit the memory voltage.

I've had many an overclock survive 4 hours of prime 95 and yet still cause random blue screens. That being said I don't tend to stress test my overclocks anymore as I don't try and push to the limit and just settle for something that is good enough.

Make sure you turn "round off checking" on on prime 95

Surveyor · 22 Apr 2011 at 16:46

With decent cooling you should have a good chance of 4.5GHz.

See this guide:

http://www.bit-tech.net/hardware/cpus/2011/01/07/how-to-overclock-the-intel-core-i5-2500k/5

It's for the GD55 but that's basically the same as your GD65.

Ignore what they say about increasing the RAM voltage.

MumboJumbo · 22 Apr 2011 at 16:50

I have a GD65 and overclocked to 4.5ghz but required just over 1.3v, bit-techs was a good start but I found I needed more voltage to be 100% stable.

Sjdeany · 22 Apr 2011 at 16:50

i dont want to go too extreme 4ghz is a nice solid number for me, im not overclocking the ram i'm just changing it so it runs at the speed it should

MumboJumbo · 22 Apr 2011 at 16:52

4.4-4.5ghz is considered a general ovreclock for a sandybridge. You're only really going to "extreme" when you aim for 4.7ghz+.

If you want it nice and simple just copy what bit-tech did and whack the cpu voltage on 1.3v or just over and put it to 4.4ghz. Pretty much guaranteed stable without needing stress testing.

Also leave the ACHI setting on the hard drive's alone. It causes problems when windows is already installed but for some reason bit-tech told people to change it.

Sjdeany · 22 Apr 2011 at 16:54

a lot of the voltage settings are currently on auto, I was hoping the unlocked chips were as easy as upping the multi, I'm in experianced in overclocking thats why i chose the unlocked chip as i have read they are easier and more stable at oc.

Surveyor · 22 Apr 2011 at 17:03

Sjdeany said:
a lot of the voltage settings are currently on auto, I was hoping the unlocked chips were as easy as upping the multi, I'm in experianced in overclocking thats why i chose the unlocked chip as i have read they are easier and more stable at oc.

If you're only looking at 4GHz you'll probably find that increasing the multiplier and leaving everything else on auto will work.

MumboJumbo · 22 Apr 2011 at 17:23

Sjdeany said:
a lot of the voltage settings are currently on auto, I was hoping the unlocked chips were as easy as upping the multi, I'm in experianced in overclocking thats why i chose the unlocked chip as i have read they are easier and more stable at oc.

You were linked to a step by step guide from bit-tech. Why not use it? It is so simple it's unreal. Nothing like it used to be.