The temps look fine. Idle temps should be the same or slightly higher than room/ambient temp so I could see that you rig is running in a airconded room.
Coollaboratory Liquid Ultra/ Pro would give you at least 10C than any normal thermal paste, this result applies for delidded chips only.

The temp difference between core is normal since previous generations. You might even see one core is 10C hotter than the rest.

The hottest core is usually the most active one, although at idle state. You might see the core temps change when changing to different thermal paste, heatsink/waterblock, mounting orientation etc.

Check out post #2 there are submissions by others to compare with your temps.

No limit by rights any K Ivy can OC 4.5Ghz easily.
I guess your chip loves more voltage. Pump more vCore until it stable.

It's a cooling limit then. Stay at 4.4GHz or upgrade your cooler.

Prime95 small FFT is not that reliable. Try custom blend like this:

Good luck.

+1.

The higher the speed/frequency, the faster the performance.
So, if your cooler still can take care of the heat, I don't see why not overclocking it to as maximum as possible.
Good luck!

Not bad. Please use custom blend and stress at least 90% RAM which might affect vCore too.

Worth is something that only you can determine.

Stressing more RAM will stress the IMC thus require you to bump up the VCCSA as well.
Stock VCCSA is 0.925v. Max 1.25v. Trial and error. Every chip has different IMC strength.
Other than that, it might be insufficient vCore etc.

You will get more GFlops with HT off because the 4 extra threads have to run on the same amount of cores.
Something wrong with your bios, HT on will have 8 threads & HT off 4 threads.

9-10C drop.
Coolaboratory Liquid Ultra/Pro will give another 10C drop.

yes indeed it's an 20C improvement with delid + Coolaboratory

I find THIS is the best chip delidding guide.
Good luck.

When offset mode is disabled, load-line calibration (LLC) will be active and causing vdrop/vdroop depending on the level you choose.
The vCore accuracy is depends on mobo BIOS.
You might even see a discrepancy with a digital multimeter (DMM) which is supposed to be the most accurate reading in real world.

FYI, the LLC works like this:


So, in your case the vCore is vdrop'ping from 1.192v to 1.2v under load with higher LLC level selected.

Don't get confused with VID vs vCore as they are different. Every chip was born with its own default VID which is unique from one chip to another. vCore is something that you can set manually in BIOS whilst VID you can't.

VID as shown in CoreTemp, will change with vCore increase. Basically VID is the amount of needed voltage shot into the CPU at startup. It will increase along with the overclock you are applying. Offset mode usually will use this VID to give the final vCore = VID + offset

The vCore shown in CPU-Z is the actual voltage being supplied to the CPU. Manual mode vCore = vCore set in BIOS + LLC

There is an offset mode guide in the first post of this thread and these voltages terms have been discussed for quite a few times already.

I have been using manual mode so far I'm happy with it.

This post has been edited by owikh84: May 20 2013, 10:18 AM

Generally 3770K has lower VID than 3570K.

Voting for delid!

As explained earlier,

Actually delidding is very easy and I have done mine twice within 10 mins lol. But you gotta have balls for that and be extra careful do not accidentally cut or scratch the die and the PCB.

lol like that also can?!!
So, don't need to worry about what to do with your dead chip yeah it can turn to a useful keychain

Well done Han! Thumb up that you got balls to delid the IHS out of craps.

You are lucky to find the chip is still alive and kicking although the PCB copper is exposed. Most people killed it just like that.

Nice temperature improvement that is a huge drop right from 90C+ to 70C+ thanks to the Liquid Ultra and no more excessive gap between the IHS and die.