system frozen at 1.15-1.20 GHz (varies with operating system)
system frozen at 1.15-1.20 GHz (varies with operating system)
your cpu (i3-540) seems stuck at a low speed and is running at base frequency unexpectedly. the system is an imac 2010 with windows 8.1 and high sierra. on high sierra, booting can take up to ten minutes initially. the main thought is your power supply might be faulty.
Have you attempted to open your iMac and clear out the dust? A faulty power supply isn’t likely to slow down your components, it seems more like thermal throttling. I own a 2010 iMac that was stored for several years before being kept in a closet, similar setup to yours. After first opening it, I discovered an enormous dust accumulation that needed cleaning. This tutorial from Ifixit matches the steps I followed when servicing my model. My unit is 27 inches, so there may be slight differences, but the process remains comparable.
I disassembled the MacBook and didn’t detect any dust. The temperatures stayed within normal range, around 40°C maximum.
It also occurred immediately after I replaced the graphics card. I had unintentionally dropped a few components.
You're testing a base-level 2010 CPU under a 2017 operating system. It seems the hardware might be too far from its specifications, so only certain microcode functions are active. The goal is probably to understand what the system is designed for rather than casual play.
@9epik Consider testing ThrottleStop 9.6 at https://www.techpowerup.com/download/tec...ottlestop/ Make sure to clear the BD PROCHOT box on the main screen. Share your ThrottleStop settings screenshots if you require assistance.