Re: Can't figure out why my X58 is throttling my i7 920 2.67Ghz?
2021/08/20 11:49:52
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So: I disabled SpeedStep and, at first glance, I will say something positive does seem to be occurring.
Over the last 2-3 days the general train of events would be, as said before: If the CPU is started up from a long period of inactivity (like having been shutdown overnight, as a for instance) then it would start up, and remain at what looks to be it's native clock speed of 2.77Ghz, with the Maximum Frequency gauge in the Processess sub tab, of the CPU tab in the Resource Monitor reading 103% (assumedly 2.77 is 3% above the chip's nominal speed of 2.67Ghz). And-interestingly-I can Hibernate and re-activate from that Hibernation state multiple times, with the CPU returning online to that same exact state.
But if I were to Restart/Shutdown and re-boot after the CPU had been active for awhile, it would be a completely different story: even if the CPU had basically been sitting idle, with no loads to speak of to deal with, nor any above average temperatures to endure, once the CPU would come back online then-without fail-it's clock speed would be throttled to anywhere from 1.5Ghz to 2.1Ghz-most times settling on the lower side of the range and just staying there.
After the disabling of SpeedStop I have observed a rock steady clock speed of 2.77Ghz after a Shutdown and a Restart. Monitoring the CPU gauge in the Performance tab of the Task Manager shows normal spiking of activity with the opening and closing of apps, and when I'm engaging in generally processor-heavy activities (like scrubbing through video, for example), but the spikes are as temporary as would be expected, and my core temperatures, as shown with Core Temp have yet to go past yellow into red. EVGA E-LEET Tuning Utility is showing the CPU temp at 65-73 Celsius.
So thus far, my rig seems to have returned to behaving the way I've generally remembered it to behave for years. I will continue to keep a SUPER Eagle eye on my temps-for some time-until it is completely clear to me that SpeedStop was the issue, and your suggestion to disable it was the solution-Thanks so much.
P.S.: during the dark days of this crisis (Wednesday?) I actually bought a Xeon x5675 that is on its way to me, thinking at the time that my CPU had just been heated to irrevocable instability (and that may yet turn out correct-who knows?) So I am thinking that when it gets here I am still considering plopping it into my mobo: 2 more cores, 3.06Ghz clock speed. Can you think of any reason why I shouldn't.
Thanks again.
Mobo: EVGA X58 (Model: 132-BL-E758 Rev. 1.1)
CPU: Xeon X5675
BIOS: E758 83
RAM: 24GB, 1600 Mhz
GPU: Gigabyte GeForce GTX 750 Ti 4 GB