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PC suddenly turned slow and laggy

I Bought my pc 2 years ago and it had been working fine unyil now. It just turned really slow over night, ive tried reinstalling windows and using someone elses hard drive. I currently have 120gb ssd that i use as my hard drive.
Sometimes when i turn on my computer it will start up, mosy of the times it turns on and turns off after around 30 seconds.

Specs: i5-4690k
8gb ram
Asus 970
120gb ssd
Reply to Flinter_cs
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More about suddenly turned slow laggy
  1. what mainboard, what psu do you have there
    Reply to atljsf
  2. Possibly a random thought. You stated that you have 120Gb SSD as your main drive. In the far not too long ago I 'knew' that keeping the OS drive at or near 50% capacity was fundamental when dealing with a multiple simultaneous processing OS.
    I have dealt with machines that do the turn on - turn off behavior. Most of those issues were identified as high CPU temps that were causing self preservation action by the processor.
    Reply to BenJaD
  3. BenJaD said:
    Possibly a random thought. You stated that you have 120Gb SSD as your main drive. In the far not too long ago I 'knew' that keeping the OS drive at or near 50% capacity was fundamental when dealing with a multiple simultaneous processing OS.
    I have dealt with machines that do the turn on - turn off behavior. Most of those issues were identified as high CPU temps that were causing self preservation action by the processor.


    Yeah about that i forgot to say that when i went into the bios it said the cpu was at 90 degrees even though i didnt start the pc for maybe 4 days.
    Reply to Flinter_cs
  4. atljsf said:
    what mainboard, what psu do you have there



    My psu is 650 something i dont know the brand and the motherboard is a msi z87 MPOWER
    Reply to Flinter_cs
  5. 650 something is important

    the cpu, what heatsink do you have in it, how long you haven't changed the thermal pasted in the cpu
    Reply to atljsf
  6. I have a water cooler not sure what it is but ive never had a problem with it. I never changed the paste so that may be why
    Reply to Flinter_cs
  7. Best answer
    Flinter_cs said:
    BenJaD said:
    Possibly a random thought. You stated that you have 120Gb SSD as your main drive. In the far not too long ago I 'knew' that keeping the OS drive at or near 50% capacity was fundamental when dealing with a multiple simultaneous processing OS.
    I have dealt with machines that do the turn on - turn off behavior. Most of those issues were identified as high CPU temps that were causing self preservation action by the processor.


    Yeah about that i forgot to say that when i went into the bios it said the cpu was at 90 degrees even though i didnt start the pc for maybe 4 days.

    The 90 degree CPU temp at startup after being at rest for an extended period is likely to be the problem with the start/stop behavior. If you are getting that elevated temp at startup - any load on the CPU will likely push the CPU into shutdown. Take a close look at your CPU cooler - ensure that all the fittings are snug and secure; they may have loosened overtime. If that is not the case - then do not run the machine until you have replaced the CPU cooler - make sure that you use a cleaner to remove any old thermal grease from the CPU - it wouldn't hurt to do the same thing with the contact area on the new cooler either. Be liberal with the new thermal paste - but not extravagant. Arctic Silver has an excellent how to visual on their site.
    When you have the CPU opening in the sub 50 degree range - your other issue may go away. Don't hold your breath!
    Reply to BenJaD
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