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My custom pc won't boot after changing CPU voltage.

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Alston770   09-04-2009 at 12:51:15 AM

A few days ago I changed the voltage on my CPU. Then I rebooted and it wouldent boot, nothing will show up on my monitor.I tried to reset the CMOS but I still get nothing. I am new to this and I don't know what to do please help me.

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PsychoSaysDie   09-04-2009 at 12:53:24 AM
- 0 +

Remove the battery for 5 minutes and it should be back to normal

------------------------------ E8600 @ 5Ghz 1.475v
4GB DDR3 2000
Intel X25-M
XFX 5770 In X-Fire
 Reply to PsychoSaysDie
Bronze CPUs badge jsc   09-04-2009 at 01:06:37 AM
- 0 +

And post system specs when you ask for help.

Look in the motherboard manual for instructions about clearing the CMOS memory.

Sometimes removing the battery for (only) 5 minutes does not clear the CMOS. You need to short 2 pins or leave the battery out for an extended period of time - like overnight.

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Bronze CPUs badge GhislainG   09-04-2009 at 01:09:53 AM
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Power off the PSU when clearing the CMOS. Then you don't have to wait for more than a few minutes. How much voltage did you apply to your CPU? Enough to fry it?

Reply to GhislainG
Alston770   09-04-2009 at 12:51:21 PM
- 0 +

I don't remember how much I cangedi
it.

Message quoted 1 times
Reply to Alston770
UnworthyBean   09-04-2009 at 01:49:33 PM
- 0 +

Alston770 wrote :

I don't remember how much I cangedi
it.


Should you really be changing voltage settings if you cant remember how much you changed it by? If im changing it, I atleast remember how much I changed it by so that I can go back if its not stable.

Reply to UnworthyBean
aford10   09-04-2009 at 02:46:55 PM
- 0 +

+1 @ jsc

Check your manual on how to clear your boards CMOS.

------------------------------ CM HAF 932 - 300GB Velociraptor
GIGABYTE GA-EP45T-DS3R
E8500 - Sapphire 1Gb 4850
4G DDR3 OCZ Reaper 1333
 Reply to aford10
Alston770   09-04-2009 at 10:20:27 PM
- 0 +

I looked in the manual and did what it seid but it didn't work.

Reply to Alston770
Alston770   09-04-2009 at 10:23:59 PM
- 0 +

have a biostar ta790gxe mb, and it doasnt make sense how the manual seis to reset the CMOS.

Reply to Alston770
Alston770   09-04-2009 at 11:10:44 PM
- 0 +

There's two lights that r off which indicate a chipset error so what does that meen?

Reply to Alston770
darkvine   09-04-2009 at 11:13:52 PM
- 1 +

What do you mean it doesn't make sense?


and also this is something you really should have made sure you could do before messing around with voltages, in fact voltages are the last thing you to be messing around with if you don't know what your doing as you could fry your parts.

When your first starting out with overclocking and aren't used to all the numbers and settings you should ALWAYS have a pad and pen to write done every change you make every time you make one.

Reply to darkvine
Alston770   09-04-2009 at 11:26:37 PM
- 0 +

Well I will know next time so could you stop telling wHat not to do and please help me.

Message quoted 1 times
Reply to Alston770
darkvine   09-05-2009 at 02:01:10 AM
- 0 +

Alston770 wrote :

Well I will know next time so could you stop telling wHat not to do and please help me.




Look I asked why it didn't make sense so I can see if I could help you understand then gave some advice on what not to do as well as what to do next time so if you would answer me rather then snap at me I can try to help.


Also is it making any beeping noises when you turn it on? Or is it just powering up but no noise and no post screen? Did you happen to smell anything weird inside the case like burning plastic?

It could be possible that you fried the CPU or maybe even the motherboard. If it isn't beeping and no post screen at all sounds like the motherboard.

Reply to darkvine
Alston770   09-05-2009 at 02:20:04 AM
- 0 +

It smells fine, there's no beep even when I take the ram out it powers up and all the fans spin but the there's a CPU or chipset error and I don't know which.

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Bronze CPUs badge GhislainG   09-05-2009 at 04:01:21 AM
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If you applied too much voltage to the CPU, then it most likely got fried, but it won't smell. Applying too much voltage to the CPU shouldn't damage the motherboard. Can you test your CPU or have it tested?

Reply to GhislainG
aford10   09-05-2009 at 05:19:45 AM
- 0 +

You can try reseating the CPU. However, I hate to say it, it sounds like a fried CPU.

------------------------------ CM HAF 932 - 300GB Velociraptor
GIGABYTE GA-EP45T-DS3R
E8500 - Sapphire 1Gb 4850
4G DDR3 OCZ Reaper 1333
 Reply to aford10
Alston770   09-05-2009 at 04:14:54 PM
- 0 +

How can I test it or get it tested?

Reply to Alston770
Bronze CPUs badge GhislainG   09-05-2009 at 04:19:24 PM
- 0 +

It's very easy. You install it in another know good system to see if it works. If you only have one system, then bring it to a shop and have them test it for you. You could also RMA the CPU.

Reply to GhislainG
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