Overclocked CPU, now computer wont start.

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thebermanator

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Jul 23, 2015
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PC Specs:
i5 750
6gb crucial ram
msi h55 motherboard
hd 7950

I had originally overclocked my CPU to around 3.7 Ghz and it was stable at that speed for multiple weeks. Then when poking around to make sure my MB had the latest driver i downloaded the MSI control center. Control center made it seem like a clock speed of 4ghz was in safe and reasonable range. Even though i had read h55 motherboards arent great for overclocking and that they cant handle the heat as well as p55 and also i hant really heard of people getting to or going much past 4ghz. Even nowing all this for some reason i set it to 4ghz and hit apply. The computer booted fine and i loaded up prime 95. I watched it for a minute or two and temps seemed fine and i left the room for about an hour. When i returned the computer was off. I pressed the power button and nothing happened. I tried removing the GPU to see if that would do anything. I tried a differant outlet and that didnt do anything and I also tried just one stick of ram. Does this sound like a CPU or Motherboard problem. Im assuming its one of those two.
 
Solution
boju
Two things i would look at first,

Firstly as mentioned, clear the cmos. - Still the pc should still boot prior and just sit blank or turn off again if overclock was unsuccessful

Secondly, your PSU (Not reliable) most likely went poof, possibly bring your system with it.

http://www.tomshardware.com/answers/id-1989334/power-supply-corsair-cx430m-raidmax-hybrid-530ss-530w.html

I dont think its heat related that damaged your system, possibly may have been due to overvolting the cpu/motherboard but long as you were in reasonable voltage limits then i'd look into trying another PSU. Overclocking puts more stress on the PSU so thats where i'd look next if clearing cmos does nothing.
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ADVgamer

ADVgamer

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Feb 1, 2015
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I've messed up on my overclocks many times... What you have to do is find the jumper(CMOS) which is used to reset your BIOS settings, assuming you haven't burned out your Power Supply or cooked your motherboard. I cannot tell you the location of the jumper because I do not have the manual of your exact motherboard. When you find this jumper, follow these steps:
1. On the back of your Power Supply there should be an ON/OFF switch, turn it OFF
2. Start the pc with your power supply OFF and wait a second
3. Now remove the jumper
4. Wait 10 seconds
5. Put the jumper back in to place
6. Switch the power supply ON

It should look something like this - https://www.youtube.com/watch?v=Pdp_L5IxaNI

Now your BIOS should have reset, if the pc still doesn't want to start something has gone wrong with your hardware. In that case take it to a PC shop and ask them if they can check your PC for free or cheap... You'll see where it goes from there.

Next time you respond please tell me which EXACT motherboard you have.
 
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boju

boju

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Jul 7, 2008
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Two things i would look at first,

Firstly as mentioned, clear the cmos. - Still the pc should still boot prior and just sit blank or turn off again if overclock was unsuccessful

Secondly, your PSU (Not reliable) most likely went poof, possibly bring your system with it.

http://www.tomshardware.com/answers/id-1989334/power-supply-corsair-cx430m-raidmax-hybrid-530ss-530w.html

I dont think its heat related that damaged your system, possibly may have been due to overvolting the cpu/motherboard but long as you were in reasonable voltage limits then i'd look into trying another PSU. Overclocking puts more stress on the PSU so thats where i'd look next if clearing cmos does nothing.
 
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Solution
Dexxteriouss

Dexxteriouss

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Jan 14, 2015
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If the guy above didn't solve your problem then your CPU or MB are toast.

Borrow a CPU that fits your MB from someone, if that doesn't work it means your MB is roasted.

If you think I'm wrong and don't want to go through buying new parts then borrow a whole motherboard from someone and test that.
 
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thebermanator

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Jul 23, 2015
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I removed the battery on the motherboard waited 15 seconds replaced it and attempted to start the system(from what ive read this resets the CMOS). Once again nothing happened. From what you guys have been saying it sounds like at minimum its a PSU problem. I just hope it didnt take anything down with it. as for voltage i dont think i increased the voltage above the safe recommended limit. I guess lesson learned with cheaping out on PSUs.
 
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