• Happy holidays, folks! Thanks to each and every one of you for being part of the Tom's Hardware community!

Question FX 4300 keeps underclocking ?

Jun 20, 2023
3
0
10
View: https://i.imgur.com/3Lm7lwB.png

View: https://i.imgur.com/HdYNsvK.png


My FX 4300 cpu keeps underclocking making the PC run very slow and stuttering. Whats so weird is I saw when i start the pc after one night is problematic, after i use it a time, opening some games or browsing it start to run and stay at high speeds . It's not Windows because i tried many versions. Temperatures are fine, i saw even with overclock it reach max at 60C. Could be too low temperature a problem ? I mean why after i use it for a time it start to run fine?

Tried:
  • Disabled cool and quiet
  • Overclock it
  • Set to high power performance
  • Change the thermal paste

None of those made any difference.
 
What is the make/model of your CPU cooler/heatsink? When did you last replace the thermal compound (between the cooler and the CPU)?

Please remove any/all custom BIOS settings and just run in its default setting. Does the problem persist?

What make/model is the motherboard?
 
Is stock cooler, thermal i changed 2 days ago. I changed because the problem was before changing the thermal. Is the same thing even with default settings. Thats wierd and i say it, after i use it a time and open some heavy games it start to run at high speeds constant. Power to cpu may be too slow and need time?

mb is n68 gs4 fx with 500w segotep battleship and a radeon r7 240
 
All modern CPUs dynamically clock. When you are at a low load state the clocks should fall to low levels and then raise up when load is increased. This is normal behavior. The stutter however is not. Try going to power settings in windows and changing to the performance profile. That in itself may fix it if the os/cpu is turning it down too low. However the FX 4300 is in modern terms a very low performance chip in itself. I would run antivirus scans and make sure you don't have bloatware/malware issues as this is usually the first thing that causes slowness and stutter and the 4300 doesn't have a lot of headroom in the first place.

Best of luck
 
Only the very best FX motherboards have adequate VRM cooling.
Try taking the case side cover off and direct a house fan at the innards.
If that helps, you have identified your problem.

Another possibility is lack of sufficient ram. Looks like you have 4gb.
Open up task manager and select resource manager, memory tab.
Look at the hard fault page rate column. If you see anything more than zero you need more ram.
A hard fault stops the cpu dead until it can be resolved. This is particularly painful if your page file is on a HDD