I'm building with the 4790K on MSI Z97 GAMING 5. For now, I'm using the stock cpu cooler. When I turn it on, the CPU idle temperature in the bios is 68c, which seems to me to be about twice what it should be. I've checked the cooler seating, and the fans are running at 100%. Is this temperature too high? And what can I do to bring in down?
4790K High CPU Temperature on MSI Z97 GAMING 5
- Thread starter Danger_1
- Start date
I don't notice any particular physical heat. I'm just booting it, and the bios home screen shows temperatures of CPU: 58C, System 32C, but on Hardware Monitor screen, it says CPU 68C, System 32C, and the graph shows a 10 degree jump. Even 58C seems way too hot. How can I determine if it's a misreading?
This is a wonderful useless answer. I'm trying to build a PC, not run an IT department. I don't have nor will I ever have "an external temperature gauging device". Should I RMA the chip? RMA the motherboard? Both? What's a reasonable next step?
My PC does not idle in BIOS, it runs at 4.2GHz... it only idles at 800Mhz when it boots into Windows, as controlled by windows power management.
After booting in windows, you can do proper checking and fault finding.
BTW, the stock cooler is only just barely enough for a 4790k.
After booting in windows, you can do proper checking and fault finding.
BTW, the stock cooler is only just barely enough for a 4790k.
synphul
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- Mar 11, 2011
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You might need to double check the bios that it's running at stock and no 'performance' options are enabled. Many times a motherboard will auto overclock the cpu with an option like 'high performance' or 'turbo'.
Beezy was right though, anything in the software whether bios or on the desktop using something like hwinfo64 or realtemp relies on embedded sensors. The sensors could be accurate and you've got a hot cpu for some reason. The sensors could be wrong and without verifying using something like a digital thermometer (touchless, uses a laser/infrared) you won't know and may as well flip a coin to make the decision whether it's a faulty sensor or faulty component. It's not a matter of suggesting you become an it tech.
When things don't go right you have two options. Use appropriate tools to verify the problem or randomly swap out parts in hopes you get lucky and it fixes the problem.
You said you've double checked the cooler, stock coolers can be finicky. If the plastic tabs don't seat completely it won't be tight enough to properly cool the cpu even if just one corner isn't completely engaged. It can help to look at the back of the motherboard to verify the push tabs went all the way through and locked completely. If your case has no cutout behind the cpu in the motherboard tray it means removing the motherboard from the case. It may also be worth checking the bios and seeing what your vcore is showing to be. Sometimes the vcore is excessive and set by the bios that way in which case you can manually lower it.
Beyond that if it's a faulty cpu or faulty sensors (faulty motherboard) there's no way to know without verifying. All anyone can do is guess or change parts out.
Beezy was right though, anything in the software whether bios or on the desktop using something like hwinfo64 or realtemp relies on embedded sensors. The sensors could be accurate and you've got a hot cpu for some reason. The sensors could be wrong and without verifying using something like a digital thermometer (touchless, uses a laser/infrared) you won't know and may as well flip a coin to make the decision whether it's a faulty sensor or faulty component. It's not a matter of suggesting you become an it tech.
When things don't go right you have two options. Use appropriate tools to verify the problem or randomly swap out parts in hopes you get lucky and it fixes the problem.
You said you've double checked the cooler, stock coolers can be finicky. If the plastic tabs don't seat completely it won't be tight enough to properly cool the cpu even if just one corner isn't completely engaged. It can help to look at the back of the motherboard to verify the push tabs went all the way through and locked completely. If your case has no cutout behind the cpu in the motherboard tray it means removing the motherboard from the case. It may also be worth checking the bios and seeing what your vcore is showing to be. Sometimes the vcore is excessive and set by the bios that way in which case you can manually lower it.
Beyond that if it's a faulty cpu or faulty sensors (faulty motherboard) there's no way to know without verifying. All anyone can do is guess or change parts out.
Thanks lodders. I guess I was overthinking the issue. Booting Ubuntu and checking the temperature with Psensor, I found it idling at 33C, still a little higher than I would expect for that CPU. Maybe Windows handles power better.
Yes, I think I will get a better cooler before doing anything CPU-intensive.
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