CPU over-burdened by running at 98-100% permanently?

Erich56

Junior Member
Aug 4, 2018
21
0
16
#1
CPU Intel i7-4930k (default clock: 3400MHz), HT switched on, hence 6+6 cores.
Mainboard ASUS P9X79WS. 32 GB RAM. OS: Windows10.

When crunching grid computing tasks, I usually run five 2-core tasks of a given project (so 10 out of tatal 12 cores are being used).
If the Turbo Mode in the BIOS is switched to "auto", it yields a CPU clock of 3600MHz, and in the Windows Task Manager, total CPU load is shown as 92-93%.
If Turbo Mode is at "manual", the CPU runs at 3900MHz, and the total CPU load is shown as 98-100%. With temperatures still okay (due to a heavy duty cooler: 65-66°C - Tj.Max is 90°C), and power usage also okay with ~ 104W (TDP=130W).

Still I am somewhat worried whether the CPU might suffer when running at it's limit permanently (24/7).
What's the opinion of the experts here?
 

TheELF

Platinum Member
Dec 22, 2012
2,864
128
126
#2
As long as your manual settings doesn't change the voltage that goes to your CPU there is no consequences, CPUs and every other component of a computer are made to run "forever" .
What you should be concerned about is your PSU failing in a spectacular way and frying other components which is why it should be replaced or serviced regularly.
 

Markfw

CPU Moderator, VC&G Moderator, Elite Member
Super Moderator
May 16, 2002
18,010
1,835
136
#3
Yes, every computer in my house runs@100%load 24/7/365 but with good cooling and great PSU's. I have done this for like 15 years, and never fried a CPU or PSU.
 

Erich56

Junior Member
Aug 4, 2018
21
0
16
#4
... What you should be concerned about is your PSU failing in a spectacular way and frying other components
Well, I guess I wouldn't have to worry too much about my PSU at this point. It's a 1000W Corsair Professional Series HX1000i, 2-1/2 years old. So I hope, at least, that this should be okay.
 


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