High CPU temps after PSU change

r00s73r · 30 Jul 2020 at 12:31

Hey guys

MB: Gigabyte GA-Z97X-SLI
CPU: QuadCore Intel Core i7-4790, 3800 MHz (38 x 100)
CPU cooler: Hydro H60
PSU: Super Flower Leadex II 1200W

My PC died in the middle of gaming, which was followed by a bang. Following the smell, I determined it was my six years old 650W Leadex power supply. I decided to replace it and since I know close to nothing about this stuff I got myself one that looked pretty much the same but with 1200W on it.

I replaced the old one(650W) for the new one(1200W), changed the cables, changed the battery on the MB (re-setting BIOS), started the whole thing up and it's working pretty much the same apart from one tiny problem - the CPU temperatures seem to be quite high, idle or not.

When I start/shut down the PC, the CPU fan goes full speed then it calms down but if I disturb the CPU by opening any application, it revs up again. It's as if it was in a constant state of high RPM and it just goes higher. With my old PSU, it never behaved like this. Temps weren't that high either, as far as I know.

I thought that when the old PSU died, this might've caused some damage to the MB or CPU, or could re-setting the BIOS be responsible? Any advice would be appreciated.

I took some screenshots of some stuff for you tech-savvy folk. I reapplied the thermal paste on the CPU, just in case. It did bring the temps down by few points (compared to the screenshots) but it still behaves the same.

Idle(just background apps): https://ibb.co/Hd4Mmtc
"Stressed" (5 minutes of gaming): https://ibb.co/L0RxZkX

r00s73r · 30 Jul 2020 at 12:55

foster grant said:
I see you have the same CPU as myself and with a H100 sitting on it my idle temps are around 33c and when gaming mine goes to about 54c maybe you need a new cooler ?

I had pretty much the same before.

ANDARIAL said:
CPU cooler: Hydro H60
How old is this?
Is the pump working now? any vibrations?

I got this one last November, so it's fairly new. I don't hear any vibrations or noises apart from the fan going faster.

foster grant said:
Get one of these
https://www.overclockers.co.uk/cors...uid-cooler-240mm-cw-9060043-ww-hs-03x-cs.html

Don't think I could fit that into my case.

r00s73r · 30 Jul 2020 at 13:52

foster grant said:
OK well you need to do something to get those temps down as in a new cooler , any pics of the case you have ?

https://ibb.co/gyPXcZ5
https://ibb.co/R4T1B9x

I keep the case open all the time so it's not the airflow. As I've said, it started after I replaced my power supply (and reset BIOS). It is possible that when the PSU died, it'd caused some collateral damage to the CPU or the cooler. I don't know.

r00s73r · 30 Jul 2020 at 14:28

foster grant said:
OK so I couldnt see a fan covering that cooler rad ?

It's behind it (between rad/case).

r00s73r · 30 Jul 2020 at 14:41

foster grant said:
OK im assuming your sucking air through that rad and out the back of the case even though ( in my opinion ) the fan should be blowing air over the rad and out the back....but as I said before you need a new cooler as those temps are telling me the cooler pump as gone.

I installed it based on the official guide and it was working fine. I guess I'm getting a new cooler too, again.

r00s73r · 30 Jul 2020 at 14:51

This is the case https://www.overclockers.co.uk/bitfenix-ronin-tower-case-black-ca-129-bx.html
Yeah, that's why I'm here.

r00s73r · 30 Jul 2020 at 22:10

Gray2233 said:
There's a chance that while fiddling about you've knocked something out of place or loosened something.

Reseat the HSF and apply some fresh thermal paste, make sure everything is plugged in properly and that the fan is spinning.
Failing that, I absolutely would not spend £110 on an HSF for that rig.

Something like this should be ample:

My basket at Overclockers UK:

1 x Arctic Freezer 34 CPU Cooler - 120mm= £20.99

Total: £20.99 (includes shipping: £0.00)

A non-K stock 4790 shouldn't be generating tons of heat.

It is possible. I checked and everything seems to be plugged in the way it should. The fan is definitely spinning. I reapplied the paste, as stated in my OP and temps went down a little (around 5 degrees) but it's still high. I got this cooler because my previous one was a similar model and I was satisfied with it and knew it would fit but I get your point. I'll check this one out thanks.

EsaT said:
Possibly pump just decided to go AWOL/end its work contract.
If coolant is circulating properly, one tube should feel hotter than other.
Some H60's have separate SATA power connector for pump, so if it's such model did you reconnect it?

While Intel's bubblegum/toothpaste under heatspreader going bad would be another possibility, that would happen gradually over time.

You might be right. I checked the tubes and they seem to be around the same temp. This one is powered through SATA and has two other connectors (3 and 4 pin). Funnilly, my previous one got busted pump so it would make strange noise then just overheat and turn off the PC. This case is different. Everything seemed to be working, just the temps are high. I just didn't consider the pump breaking again| (maybe it was caused when the PSU died), since I got it not so long ago. I guess I was overcomplicating the problem. I'll try and replace it and post the result here. Thank you all for the advice.