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Processor over heating


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#1
ThreeLeggedDog

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Well the story goes; I am building a new PC and installed everything ( I have many guides in help building a installing parts) went to add power and start up. Forgot to recheck all connection that they are in correct locations and seated properly. Powered on unit not knowing the grounding wire for motherboard wasn't seated all the way. I got no power to VGA hence no BIOS popped up. Recheck connection and then discovered that grounding issue, and did plug it in securely. Was told by a friend in BestBuys geek squad, that could have shot the CPU. Now CPU is overheating ( states that in BIOS ) and freezes the screen while I attempt to install Windows. I have a Zalman 9700 installed hoping that it will cool the CPU down enough to work on it in BIOS, nope. Also tried to reinstall heatsink multiple times Looking for expert advice on if the CPU ( intel quad 9550 ) is still salvagable and/or why it could be over heating. Thank you.
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#2
rshaffer61

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Did you apply thermal paste to the heatsink ?
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#3
ThreeLeggedDog

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Thermal paste was used, Arctic Silver 5. I applied varying amounts each time. The problem is a bit more difficult than paste I believe. But thanks, any help is welcome. I mean, I did forget to check cables so I could have forgot paste but I didn't. At least not on this build.
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#4
rshaffer61

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Best we go through this one step at a time to make sure it's not the MOBO also.
Please follow the next steps and let us know what the results are.

Disconnect everything from the Motherboard except

* keyboard
* mouse
* video output
* 20+4 powercable
* 4/8 pin 12v wire both coming from the powersupply,
* Cpu fan wire
* power and reset button to the case
*case speaker

Now you should have NOTHING connected to the motherboard except what was listed above.

The goal here is just to test the mobo:

If the computer still will not boot up the please remove the motherboard from the computer along with the power supply

place the motherboard on a piece of card board larger than the motherboard,

this will eliminate a short from the mobo to the case which could be a possibility

Install the cpu with, 1 stick ram in dimm 1, power supply, case switch and case speaker
Connect ps2 mouse and keyboard along with the monitor
Repeat the above and power on

If the computer now boots into bios you most likely had a case short so make sure when installing the motherboard in the case that you use standoffs and they line up with the mounting holes in the motherboard and none of the standoffs touch anything else on the underside of the board.
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#5
vally

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What model is the Mother board?
If the computer stops during installation it is done by the mother board who detects that the cpu is overheating so it stops all processes to protect the cpu.
Try and take out the cpu and clean under it it could be that the sensor is not functioning right.
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