CPU Overheating in BIOS for New Build

[nickpoho]

Have spent a lot of time on this site, but this is my first post. I just finished my new build, and when I get to the BIOS, my CPU temperature climbs to 85+ Celsius in just a few minutes. All fans are running and all parts appear to have proper power. Based on some info I collected from the site, I've tried cleaning, applying paste, and reseating my heatsink four times already. I've also tried plugging fans into by Corsair pump block and into the mobo headers with same results. I'm at a dead end now and don't know the next steps or if I need to start replacing parts. Please let me know your thoughts and thanks so much for the assistance. Build below (hopefully I didn't miss anything ):

Asus Z170-A
i7 6700 4HZ
Corsair H100i
ASUS GTX 1070 Strix
16G DDR4 Kingston RAM
EVGA 800V Gold

 

[GhislainG]

If the cooler is making good contact with the CPU and it doesn't cool it properly, then it's defective. You followed the test procedures provided by Corsair?

 

[nickpoho]

Thank you. I don't see procedures in the manual, but the block is lighting up and i can feel it running. Because I have it pumped into a fan header and am not using Corsair Link, it's not registering in the BIOS. I also fear that the CPU or MOBO might be bad. I'm just unsure where the problem lies. The cooler came used from eBay, so that's the most sketchy of the components. Is buying a new cooler the answer you think?

 

[GhislainG]

I'd never buy a used liquid cooler, but is it still under warranty? Is the pump running at full speed? Is one side much cooler than the other?

 

[nickpoho]

I definitely won't be doing that again. I'm not sure how to tell if the pump is running at full speed. It's plugged into a fan header and isn't showing any info in BIOS. I can feel it running and see it light up. There is almost no heat coming from it though. Both tubes and the block are completely cool except for a little warmth coming off the bottom of the block.

 

[GhislainG]

If the pump isn't connected directly to the PSU, make sure the fan header is configured for maximum cooling; otherwise the pump may not be running fast enough. If the tubes are cool, then the pump may not be working properly, but if the block also is cool, it could simply be a bad sensor. Could you install the OS and use Intel XTU to check the CPU temperatures?

 

[nickpoho]

Thanks for all the help GhislainG. I'm going to order a new cooler and try your troubleshooting simultaneously. Something tells me the heatsink is defective. I'll have an update for you by the end of the week.

 

[maxwellmelon]

You do have the pump to psu wire connected PSU right?
Did you double check that you are using correct standoffs?
When you removed the cooler there was no globs of paste over the cpu(see below)?

http://imgur.com/a/Msbmu see picture 7 should look like the left side when removed not the right, if it looks like the right side then your cooler is not down on the cpu correctly

(pictures from http://www.tomshardware.com/answers/id-3123860/corsair-h100i-cooling.html)

 

[nickpoho]

Great pics. Thanks. My back plate is a bit different than yours, but the standoffs are the same. The funny thing is that the plate isn't snug up against the board. I'm not sure why that is. I used some washers to attempt to batten it down, but it still has some give. When I connect the block, it seems to have good contact though. Is that give bad? I thought it was a design, because no matter how much I tightened, I did not get a flush fit.

 

[nickpoho]

Also, my pump is actually connected to a chassis fan header and should be receiving full power I believe. I called Asus and they confirmed that a chassis fan header provides 12W uninterrupted. That should be enough, right?

 

[maxwellmelon]

I don't have the I so I don't know but the section 6 of your manual says "Connect PUMP POWER HEADER to psu" (key words pump power header) "AND" (another key word as it does not say or) "3 pin pump RPM wire to any motherboard 3 or 4 pin header"

based off of that the pump does not draw its power from the motherboard header but though the cable that connects to the PSU and is only suppose to use the motherboard header to relay speed data back.

 

[nickpoho]

Yes...the pump is connected directly to the PSU via a different connection. Thanks for reminding me of that. This tells me that it should definitely be getting enough power.

 

[nickpoho]

First instinct is the best I guess! You were right with the first answer Ghislain, the cooler was defective. Replacing it with a new one solved the problem and the build works perfectly.

Just some notes for others having this same issue: 1) never buy a used cooler from a seller that doesn't have incredibly positive feedback, and even then be leery, and 2) if the led on the h100i is cycling colors when installed, there may be a problem; my first defective one did this and my second on just lit up as white when installed.

Hope this helps and thanks to everybody for the answers!