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4770K insane temps at idle.

Too Tall

Too Tall

Too Tall

Soldato
Joined
21 Jun 2006
Posts
3,692
Location
UK
Hi guys I just bought an Z87X-OC along with a 4770k and H100i but I'm having significant issues with what I think is a faulty chip.

Whenever I boot the system it is locked to 800mhz, after researching I came across a similar issue due to BD PROCHOT which essentially throttles the CPU. Disabling it allows the chip to run un throttled so 3.5ghz stock in my case.

Temperatures immediately rise to an uncomfortable level. As I'm sat here typing its hitting 68'C at standard clocks at 1.04V

I have removed the H100i, checked the installation and it is fine. The thermal paste looked to have a good even spread on the CPU die and was central on the pump. The pump is running at an average of 2260 with one hot pipe one cold.

I have rebooted and I'm getting exactly the same issue. I've reset the CMOS, tried a few different BIOS versions but to no avail.

Any opinions / advice?
 
Sounds like the cooler to me, if one pipe is hot and one is cold, obviously one should be cooler but I wouldn't think it should be cold. Can you feel on the pipe if it is actually pumping the fluid around?
 
As too tall has said just check and make sure the pump is actually working. make sure the power is connected (all too often it can unplug especially if the cable management is tight).

Also make sure the 4 stand off's that hold the back plate are screwed tight and that the back plate is actually through the motherboard holes.
 
I have double and triple checked all the connections, the pump is running around 2260rpm. The backplate is fitted correctly also.

I'm stumped.
 
If the H100i wasn't working, the CPU will go far higher than 68C so it must be doing something.

Where are you seeing these temperatures? What does the BIOS say the CPU temp is?

The H100i comes with thermalpaste pre-applied, did you add more?

Can you take a picture? Have you definitely used the correct mounting brackets?

When you press the ignition button on the back of the motherboard and then power it up, do all the fans/H100i pump start? Do you have the fans attached to the radiator?
 
Oracle, the temps I've posted are at idle if I run burn test for example it easily hits 100C.

The temperatures are through CPUID HW Mon, Corsair link and core temp.

I have not added more paste, there was no need. though I am tempted to clean it fully and try some IC diamond I have.

The fans are connected and are spooling up with the increase of temperatures. The ignition buttons works and fires up all fans etc.

Could I be really unlucky and have a really hot chip along with a faulty H100i?
 
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No such thing has a really hot chip.

My point (made badly) was that with no cooler, at idle, the CPU would go 100C+
So obviously something is stopping it from doing that, so there is some function with your cooler.

Do you have a spare cooler? Did you buy your CPU retail? I think it comes with a small cooler, could you try that?
 
Too Tall said:
Oracle, the temps I've posted are at idle if I run burn test for example it easily hits 100C.

The temperatures are through CPUID HW Mon, Corsair link and core temp.

I have not added more paste, there was no need. though I am tempted to clean it fully and try some IC diamond I have.

The fans are connected and are spooling up with the increase of temperatures. The ignition buttons works and fires up all fans etc.

Could I be really unlucky and have a really hot chip along with a faulty H100i?
Click to expand...

Never seen this before. Take the cooler off (H100i), clean everything up and repaste and remount. If the problem persists, try another cooler. Even a crappy stock fan cooler should give you reasonable temps at idle. Then you can exclude issues with the chip.
 
There's definitely something wrong there then, is your H100 pump running? radiator fan at full speed?

What sort of orientation is it at in your case? it might be worth just tilting your case side to side etc perhaps there's an air pocket stopping flow? I don't know not that experience with all in one watercoolers.
 
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I've put the stock cooler on, still get the issue of it being locked to 800mhz unless I disable BD PROCHOT.

Temperatures are ever so slightly lower though, hits 96C on load but takes a bit longer to get there. Idle temps are however lower. This is at 3.5ghz.
 
Pop the side off an listen to the WC, if you can hear the water trickling like a semi open tap your pumps on its way out.

If you can hear gushing like a full open tap its not your cooler pump.

Just seen you have the same problem with different cooler at least you know the cooler is safe.
 
It might be just that your CPU is faulty, inside. Really bad contact between the die and IHS.

If your H100 pump ran at 2200 and you get an idle temp of 66c at 3.5ghz and less than 1.2v I would definately rule out the H100, after three proper mounts as you say.
 
What do you mean by BD PROCHOT? Disabling Intel Speedstep should stop the processor throttling down whilst keeping some of the idle power saving features active.

The fact that the stock cooler is outperforming the H100 though points to a problem with the cooler, you didn't leave the clear protective plastic on the base of the waterblock did you? (sorry had to ask just in case)
 
I've just plugged in the cooler outside the case, you can hear the pump whirring but no water sounds at all.

Haha - and no I don't have the plastic on the cooler.

BD PROCHOT - Sorry I thought I had explained this in my initial post, basically the computer will not boot up at stock clocks it constantly boots at 800mhz. BD PROCHOT stands for bi-directional prochot. PROCHOT stands for processor hot which is the signal that is activated within the CPU when it reaches approximately 100C to 105C depending on the model number. This signal is what initiates thermal throttling so the CPU can slow down and keep from over heating.

This I think was caused by the processor getting too hot and I now have to disable it with software to get it to run at stock (3.5GHZ) speeds.
 
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mmj_uk said:
What do you mean by BD PROCHOT? Disabling Intel Speedstep should stop the processor throttling down whilst keeping some of the idle power saving features active.

The fact that the stock cooler is outperforming the H100 though points to a problem with the cooler, you didn't leave the clear protective plastic on the base of the waterblock did you? (sorry had to ask just in case)
Click to expand...

Not really he is using a Corsair cooler.
 
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