OC Help 2500k - GB z68xp-ud3

DTWD

DTWD

DTWD

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19 Jan 2010
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127.0.0.1
Hello,

I am a bit of a novice with these things, but had a go at OCing my 2500k by myself. Last time I OCd a chip was my Q6600 and someone on here walked me through the settings and it worked perfectly. Me...well on my own it's not going so well.

Specs of note are:

CPU: Intel SB 2500k
MB: GB z68xp-UD3 (f7 firmware)
RAM: Corsair Vengence (blue if that makes a jot of difference) 16GB (4x4GB) DDR3 PC3-12800C9 1600MHz
Cooler: Antec Kuhler 920

It's all wrapped up in a HAFX, so it's got plenty of air flow and I am running a custom fan profile on the Antec to keep the OC'd temps around 70 degrees on load (a more aggressive profile had these down a bit lower, but I will sort that out once I have a stable OC).

So the problem:

With everything set to auto I can get 4.5GHz. It can run 10 passes on IBT set at maximum, HW Monitor seems to think it's using 1.34 VCore (on auto remember) on load. However as soon as I raise the cpu ratio to 46 and leave everything else the same it bombs out with a BSD after a random number of passes on IBT.

Have I reached the limit for my chip or can I play with the settings and get a bit more? I really don't understand what everything else so I don't want to play too much.
 
Oh additional to that the BSOD code is 0x124 which I understand to be vcore related. But when I set it to 1.38 manually it still bombed out. I believe 1.38 is the maximum recomended for these chips isn't it?
 
I have the same sort of spec..

I5 2500k @ 4.4ghz
8gb Corsair Arctic White Vengeance
Antec Khuler 620
Gigabye Z68XP-UD3
Corsair Carbide 500R

I tried the auto overclocking feature on mine and it started to pump a lot of vcore.

I put a message on here asking how to do it and was told just to change the multiplier to 45 and then adjust the vcore manually until it did a 10 pass maximum IBT..

I tried it at 1.35 vcore at 45 multiplier and it always bombed out on a BSOD at the 10th pass..

I've now knocked the multiplier down to 44 and it flies thru with no problems...

Idles at 29oC and Full Load at 66-68oC and that on a single pull fan thru the 620..
 
I just dropped my vcore to 1.35 and ran IBT while I went out. I came back and I thought "wow, something is up, it's stuck on one pass", and it turned out it had froze.

Then it wiped the OC/all bios settings on reboot.

What settings have you got for that?
 
DTWD said:
I just dropped my vcore to 1.35 and ran IBT while I went out. I came back and I thought "wow, something is up, it's stuck on one pass", and it turned out it had froze.

Then it wiped the OC/all bios settings on reboot.

What settings have you got for that?
Click to expand...

The only thing i changed on mine was the multiplier from 33 to 44 and upped the vcore to 1.35.
Set my memory to 1.5v and then saved to bios and rebooted..

Ran IBT on Maximum with Core Temp and passed all 10 times with a idle load of 30 and max of 67..

Thats all i changed nothing else on mine
 
I had the same issues problem on my Gigabyte Z68X UD4 B3 as it need more vcore for 4.6GHz at 1.45V because this board won't allow me to do any LLC with offset! Silly of gigabyte not to fix it.

It could be your board not the cpu. My friend had test my cpu on his Asus board and get 4.8GHz at 1.38V (offset)
 
Do you have all the EIST/power saving turned on? Do have load-line on?

My RAM was already at 1.5 on auto.

It turns out I was reading the wrong reading in Hardware monitor, I was reading the CPU reading, not the VCORE. The VCORE looked really low and so I initially, and subsequently, ignored it. It says it maxed out a 1.34 and is idling now at 1.04.

I shall try putting the vcore to 1.34 and running it again and see what happens.
 
Bulldog, I am not running LLC (currently disabled) or any offset, unless it's set to auto.

Should I be?
 
I really don't get it though. Auto shows (in HW Monitor) that it's max VCore is 1.34. If I set vcore to 1.34 (the bios thinks it's at 1.365 though) and leave everything else on auto it bombs out with a BSOD a few minutes into IBT and then the MB clears the overclock.

EDIT: that's precisly what it's just done.
 
Setting the LLC to 3 got me 10 passes at max last night. I shall drop the vcore one step at a time over the next few days and see how it goes.

However a few things are slightly confusing:

1) HWM now says that my Vcore is running at between 1.04 and 1.06?

2) I get around 5/6 more Gigaflops on IBT when manually set than when it's at auto, how?
 
Can one of you fellow owners help out a user pls?

Cannot get Speedstep working at all. Cleared BIOS settings, set EIST to Enabled but CPU-Z still reports my 2600K stuck on 3.4ghz. It won't reduce to 1.6ghz as it should.

What BIOS are you guys all on and does Speedstep work for you?
 
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