I5 2500k - Gigabyte Z68XP-UD3P Overclocking

Neil79 said:
Still can't use 4.8 and this board is a complete **** with it's boot loops, even resetting csmos it doesn't always fix it. You end up stuck on the BIOS logo and it just reboots itself and repeats.

4.8 is unstable can't even reach past the bios screen :(, any tips?
Click to expand...

Wack the Vcore up to 1.5 and the LLC to level 5 a see if it's stable that way!.

It ain't the board it will be the chip, as you can see mine does 4.8 @ 1.4.
 
Neil79 said:
Still can't use 4.8 and this board is a complete **** with it's boot loops, even resetting csmos it doesn't always fix it. You end up stuck on the BIOS logo and it just reboots itself and repeats.

4.8 is unstable can't even reach past the bios screen :(, any tips?
Click to expand...

I had that with another gigabyte board but to be honest I wouldn't take it as a given that you'll get to 4.8ghz.

anyway, when its doing the boot loop and resetting the cmos doesn't fix it, how do you sort it out?
 
matt100 said:
I had that with another gigabyte board but to be honest I wouldn't take it as a given that you'll get to 4.8ghz.

anyway, when its doing the boot loop and resetting the cmos doesn't fix it, how do you sort it out?
Click to expand...

i had this problem and got worried i was going to have to take it all apart and put it together again. in the end what fixed it for me was removing the 24 pin and the power cable. leaving it a bit and then it was fine
 
Neil79 said:
In simple terms it stops the voltage from dropping off and it keeps it stable under heavy load, for example on my old asrock q6600 motherboard a voltage setting of 1.45 would drop to 1.32 and lower without vdroop.
Click to expand...

But the volts dont drop when cpu is idel,, I use the normal option and just up or decrease the volts with the dynamic vcore(DVID)

Thats with the UD4 board tho
 
This board is a real pain in the backside to work with after a bios flash, the same thing happened previously. You'd flash the bios, reboot the system and it would constantly get stuck at the bios logo and shut itself off. Clear the cmos then it would finally get to the bios so you can set your system settings up. After setting the default settings ( not overclocked ) and click save and exit it would save and the system would shut down and power back up again before going into a logo loop requiring another clear csmos then it works perfectly.
 
@Neil79 just used your settings for 4.7 overclock ,how long do you let prime95 run for ?
can you have a look at the pic below and see if the temps are ok

cputests-2.png
 
24hrs?, just let it run for atleast 10 that's what I did and have been good :), temps look ok at the moment but i'd look towards getting it lower when heading towards next summer :D

Intel Burn Test 20 loops High+ is also recommended as above
 
Have been using prime since 1999 or so dude, 24hrs i find is the sweet spot and have seen many many failures after the 14-16hr mark but not that many over 24hrs. Odd thing i noticed with Sandybridge cpus is something around the 9th hour (since all are roughly the same speed overclocks) with the latest builds really throws an unstable OC for a loop and prime rarely errors out with any i7 based cpu, especially SB, either it keeps going or flat out 124 or 101 BSODs.

I'm assuming his temps were raised by the IBT he ran, which is not that good considering that hes running a non AVX version of IBT (seen by the 50 odd gflops, should be more than double that at least especially with no HT). I get around 64C tops with the non AVX and 78 with AVX @ 4.8GHz 1.38v (2600k cooled by Noctua NHD-14)
 
Last edited:
I run Burntest for 12hrs maxed out and then if it passes, its solid as a rock and then it will withstand anything I throw at it.
 
Last edited:
I'm having some real issues with this board I think me and it will have a short relationship.. Anyhoo Neil I have copied your 4.5ghz settings into my Bios and all seems good for a few hours then the damn thing re-sets and goes into the bootlock rubbish.
I'm using almost an identical setup to yourself with the Kingston Grey Ram, what voltage are you using for the Ram mate is it 1.6v as it states on the stick or lower as i'm wondering if this could be some of my problem as i think its set to 1.35v ish volts...

Cheers
 
My ram is set to about 1.6v, the boot loop issue is a bug on this board i'm afraid, they said that the Beta bios F7B fixes it but it doesn't
 
Ok mate cheers will give the ram a bit more. The board is a dog when not happy hopefully gigabyte will come up with some kind of a fix as it is clearly buggered.
Is 1.4v ok for 4.6 if I lower it fails to boot and freezes on the windows logo. ?

Cheers
 
Hi all, Overclocking novice, with questions.
I have this MOBO and 2500K.

I followed the 4.5Ghz settings at the start, my setting are:-
Load line = level 6
QPi/VTT Voltage = 1.79v
Dram voltage =1.55v

i worked down the CPU VCore to 1.255v using a 5 run burn test set to very high. all seems stable.

The vcore idle (taken from easytune) = 1.296v. during load it goes up a little to 1.284 (even 1.32v between runs/cycles).

3 questions:-
When people in here state temperature are we discussing CPU or Core temp's. My CPU temp at max is about 70degC the cores get to 83degC (taken from realtemp).
Do the above values look OK, should i reduce the Vcore further, or should i just run longer 20 run burn tests & over night prime95 tests with these settings.
My BIOS version is only 4F, should i update

Thanks
 
You must log in or register to reply here.
Back
Top Bottom