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Asrock Z370M-ITX/ac + I7 8700K and CPU Temps in BI
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PelaAsrock View Drop Down
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Points: 94 		Post Options Post Options   Thanks (0) Thanks(0)   Quote PelaAsrock Quote  Post ReplyReply Direct Link To This Post Topic: Asrock Z370M-ITX/ac + I7 8700K and CPU Temps in BI
    Posted: 17 Oct 2018 at 6:40am
Hi, I've recently bought this mobo and the BIOS is reporting even as much as 30° more than CAM soft, AIDA, ICUE or any other software. I know that my H7 Quad Lumi ain't a top of line Cooler for my i7 8700K and that I have to buy a new thermal paste since I've ran out of Gelid and I've used just an almost generic one, but i don't get this discrepances, anyone with this mobo can shed a light or a guess of what's going on? thanks in advance!

Edited by Xaltar - 17 Oct 2018 at 2:13pm
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Points: 28053 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Xaltar Quote  Post ReplyReply Direct Link To This Post Posted: 17 Oct 2018 at 2:20pm
I edited your post to change the text color back to something readable. 

As for your concern, the BIOS does not report idle temps. In the UEFI there is a constant load on one of your cores and this is why your temps appear to read "high" in the BIOS. This is perfectly normal for a UEFI system. Back in the old days before UEFI the temps reported in BIOS were more representative of idle temps but that is not the case with the much more resource heavy UEFI interface.

I have seen UEFI temps as high as 60c+ with actual idle temps in OS being as low as the low 30s. It isn't something to worry about unless your UEFI temps are over 80c or so, that would mean your cooler is inadequate or not mounted correctly. 

The only accurate idle temp is the one reported when you have booted the system into your OS.

Enjoy your build Wink
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Points: 94 		Post Options Post Options   Thanks (0) Thanks(0)   Quote PelaAsrock Quote  Post ReplyReply Direct Link To This Post Posted: 17 Oct 2018 at 3:45pm
Originally posted by Xaltar Xaltar wrote:

I edited your post to change the text color back to something readable. 

As for your concern, the BIOS does not report idle temps. In the UEFI there is a constant load on one of your cores and this is why your temps appear to read "high" in the BIOS. This is perfectly normal for a UEFI system. Back in the old days before UEFI the temps reported in BIOS were more representative of idle temps but that is not the case with the much more resource heavy UEFI interface.

I have seen UEFI temps as high as 60c+ with actual idle temps in OS being as low as the low 30s. It isn't something to worry about unless your UEFI temps are over 80c or so, that would mean your cooler is inadequate or not mounted correctly. 

The only accurate idle temp is the one reported when you have booted the system into your OS.

Enjoy your build Wink

Hi man, thanks for the help...what's strange is that I'm coming from a X99 mobo with a very comprehensive and modern UEFI and never had such temps...anyway I'll check next time if I'm hovering around your mentioned 60s or the more dangeours 80s, thanxs again

PD: thanks for editing the initial post
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Points: 28053 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Xaltar Quote  Post ReplyReply Direct Link To This Post Posted: 17 Oct 2018 at 5:08pm
Even on x99 the UEFI temps should be higher than idle temps in OS, it is also likely that you had a beefier cooling solution on your x99, that makes a large difference Wink

Check temps in OS, both idle and load and as a general rule, try to keep your load temps under 80c. Modern CPUs can handle more than 80c but running anything consistently that hot isn't good for longevity. The occasional spike running something like Prime 95 is fine but a consistent temp over 80 will hurt your components over time.
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