Bent Pins on CPU

Discussion in 'CPU, Motherboards and Memory' started by GoingNutz, Nov 25, 2009.

  1. GoingNutz

    GoingNutz Geek Trainee

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    Hello,

    I just got a new case for my desktop pc. I transferred everything in to it. I took off the heat sink because I was gonna change the fan on it, but decided not to. But unbeknowns to me my CPU was stuck on the bottom of the heatsink, when I put it back in, I accidently bent some of the pins. but I didnt notice this until i was troubleshooting because my monitor is not recieving the signal from the computer, nor does anything work in the usb on the mobo. I managed to get the pins straightened but no change in the problems. My computer does boot, everything comes on, i have the sound on but I dont hear any beeps at all. I just cant see anything on the screen. I tried a different video card and same problem. Does this mean I have to get a new CPU or is it something else? I'm really kicking my self for a mistake like this, I really wish I would have seen the cpu stuck on the heatsink.........:(

    Ps. Everything worked just fine b4 the transfer to the new case yesterday
     
  2. Big B

    Big B HWF Godfather

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    Yeah, the CPU stuck to the heatsink is common, but as long as they've been mated up properly to the socket, you are usually fine. You might want to re-check the CPU pins and make sure the CPU sets in the socket without any effort. If it doesn't you've still got a bent pin somewhere.

    The other thing you might give a shot is resetting CMOS. Your motherboard manual should have the specific location of the jumper to do this as well as the directions on what pins to short, but if not, you can remove the battery from the motherboard for a minute while disconnecting the power to the motherboard as well. Replace what you removed and try again.

    Lastly, check that the CPU fan is plugged into the CPU fan header. Some motherboards by default settings may not power on without a fan connected to the CPU fan header.
     
  3. GoingNutz

    GoingNutz Geek Trainee

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    You have no idea how hard I am kicking myself for this, I did manage to get the pins straightened out except for one broke so now its gone, and there is one other that it bent from what I can see, have trie everything in my power to get it up and straight (no pun intended) to no evail. althought it did sit in the socket with no effort and locked into place. I fired up the computer, still same problem. I forgot about the CMOS thing, I will try that but I dont have a jumper, one from the cd/rom drive should work shouldnt it?
     
  4. GoingNutz

    GoingNutz Geek Trainee

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    ok i cleared the cmos still no change :(
     
  5. Big B

    Big B HWF Godfather

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    Ah, a pin is missing? I've heard of people getting by without a pin...but that depends on the CPU and what kind of pin it is.

    If you can find that pin still in the socket, you should be fine. However, if not, it's a new CPU for you.
    You could try a strand of copper wire as a substitution for the pin, but be aware that I don't really recommend this as it is a mod and if you short it with another pin...that could be more of a liability. I don't know for sure what you have for CPU right now, but I would guess either some type of Socket 478 Pentium 4/Celeron or a Socket 939 Athlon/Sempron. In that case, it something you'll probably find used and not new for a relatively low cost. If you can find out your motherboard model, we can better recommend what specific CPU you'll need to track down.

    Oh, and yes, any jumper will work. You just complete a certain circuit by shorting a particular set of pins with a jumper cap. Hell, in a pinch, a flat-head screwdriver can do the trick, although I typically use that trick to short the power jumpers on a motherboard outside the case.

    In the future, what is recommended when removing a heatsink, is to twist the heatsink slightly to loosen it. Now, I know that that can be a little difficult to do because of the retention bracket around the CPU, so don't expect a lot of room to maneuver.
     
  6. GoingNutz

    GoingNutz Geek Trainee

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    Yes unfortunately I have to buy a new cpu. I got a hold of a friend of mine who repairs computers on behalf of Dell. He told me the same thing, NEW cpu. how from the way it looks it's a blessing in disguise, cuz it will be an upgrade. I am torn between the 3.2 quad core and the 3.4 quad core. and the only differences is the wattge basically, one is 140 wattts and the other is 125. ( these are AMD phenom II 965 and the 955 I am referring to, sorry :( ) is the wattage a big concern? I have read feedback the the 965 overheats, any suggestions?
     

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