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post #1 of (permalink) Old 05-20-2019, 09:27 PM - Thread Starter
corhen
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2500k wont maintain a multiplier

Hey All,

I've been looking back into my trusty overclocked 2500k, seeing as i have been having trouble with simulation speed in cities skylines, and found something odd.

i run a 2500k (3.3ghz stock) at 4.4ghz, (102mhz x 37), and have done so for close to 10 years without any signs of stability issues. however, due to an unrelated issue, i was monitoring my temps and overclock

When not on a load, my CPU happily hits 4.4ghz. but once i hit it with some prime 95 (or a heavy game) the multiplier drops and drops, and i have seen it as low as 34x. Prime95 doesnt report any errors even on a long run, and the temps look fine.

I went into my bios, and everything looks fine there. I turned off a bunch of the power saving features (intel turbo, c-states, overspeed protection) but this hasn't changed the performance issues at all.

Specs:
I5-2500k
MSIP67A-GD53
Nvidia 780
16gb gigabyte 1600mhz ram



anyone have any ideas what is causing this?
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DOOOMM!!! Computer
(12 items)
CPU
I5 2500k
Motherboard
MSI p67-gd53
GPU
MSI 560 Ti HAWK
RAM
2x4gb Corsair 1600mhz 9-9-9-24
Hard Drive
Vertex 3
Power Supply
Antec Tru-Power Quatro 1000 watt
Case
Antec P182
Operating System
Win 7 64bit
Monitor
Catleap q270
Keyboard
G15 V1
Mouse
Logitech Wireless Gaming Mouse G700
Audio
Creative X-Fi Titanium HD
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