i2500k - Overclocking assistance...

djkav · 17 Oct 2011 at 17:28

Hi, can anyone give me some tips for overclocking with the following hardware.

i2500k - DH-14 - ASRock Extreme 4 Gen 3 - 16gb Hyper X grey.

I aint a clue what have the BIOS options mean

In the DRAM config, It lists my RAM settings correctly as "Profile #1". I'm ok just selecting that and leaving the motherboard to sort it out?

Many thanks

djkav · 19 Oct 2011 at 10:53

Need help with a setting;

- I manually set the CPU Ratio to 45.
- I set Vcore to 1.35v
- CPU Load Line Calibration is set to AUTO (Level 5, last time I looked).

When i run SuperPi, CPU-Z shows my Vcore drop to around 1.27v. Am I correct assuming this is the Vdroop.

Would I need to change the CPU LLC to say Level 2 or something to counter the Vdroop.

I don't know much about the different settings

It does occasionally BSOD with error 124 (cpu volts, im guessing)

Clav · 19 Oct 2011 at 11:30

I have that board and chip since Monday. All I did was disable everything I wasn't using (ie, parallel port, serial port, onboard audio, firewire etc), put the multiplier to 45, disabled spread spectrum, set my memory timings and left everything else on auto. And voila 4.5Ghz.

It crashed at 4.6 but I reckon if I have a play with the voltages it will reach higher no bother. It certainly isn't getting hot yet.

AlfBaxter · 19 Oct 2011 at 12:13

You might also need to set long and short duration power limits to 200, if you see your CPU clock dropping a little under full load.

LLC on these boards measures the amount VCore drops under load, so lowest settings have highest compensation for VDroop. I got mine stable by finding the lowest stable VCore under load using LLC level 1, then lowering LLC to 4 or 5 and setting VCore in BIOS higher so that it drops to that VCore under load.

At LLC level 1 VCore will actually increase slightly under load until it reaches the value set in BIOS. I think the instability I saw was due to this increase being slower than the CPU clocking up. If you have a higher idle VCore then that won't be an issue, and you'll get the same stability under load.