Posted: 3/7/2014 5:23:41 AM EDT
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I went from water cooling back to air cooling, but after making the heat sink switch...Motherboard light is ON but Computer won't Start.
I'm guessing a cable jostled lose? Any ideas as this is a new one for me. |
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What light? What motherboard? What heat-sink? Vague post is vague. My guess is that your heat-sink isn't seated properly or the fan cable isn't plugged in (assuming you have the newer style cpu fan pins) Motherboard light and the power Supply light is green....which is normal. Processor is a First Gen i7 This is the Heatsink |
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No reaction at all when hitting the power button. No fans...Nothing. Quoted:
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Most likely something just got knocked loose. What happens when you try to turn it on? Do you get a BIOS beep? No reaction at all when hitting the power button. No fans...Nothing. Check to make sure the power button cable did not get disconnected from the headers on the motherboard. |
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No reaction at all when hitting the power button. No fans...Nothing. Quoted:
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Most likely something just got knocked loose. What happens when you try to turn it on? Do you get a BIOS beep? No reaction at all when hitting the power button. No fans...Nothing. Not sure that an improperly seated heatsink would cause that problem. I think the PC would start up just fine, and then shutdown when temps got too high. Maybe if the fan to the heatsink wasn't in the right place, it may prevent startup. Do you have the original heatsink that came with the processor that you can try? Do you have enough thermal grease to try a few different things? How is the processor installed? Was the processor removed and put back in, or was it clamped in the whole time? RAM is another thing that will prevent a PC from starting, but you usually get a lot of beeps if there's a RAM issue. |
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No reaction at all when hitting the power button. No fans...Nothing. No beep either Quoted:
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Most likely something just got knocked loose. What happens when you try to turn it on? Do you get a BIOS beep? No reaction at all when hitting the power button. No fans...Nothing. No beep either Check and make sure the on off switch on the back of the PSU is on if it has a switch Check the large 24 pin connector that goes to from the PSU to board Check the 4 pin 12volt connector that goes from the PSU to board (there could be two of these depending on the board) ETA: Actually unplug these connections and plug them back in, sometimes even though they appear to be clicked in they are not. If this don't fix then check to make sure the heat sink is seated but remember simplest things first 
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Not sure that an improperly seated heatsink would cause that problem. I think the PC would start up just fine, and then shutdown when temps got too high. Maybe if the fan to the heatsink wasn't in the right place, it may prevent startup. Do you have the original heatsink that came with the processor that you can try? Do you have enough thermal grease to try a few different things? How is the processor installed? Was the processor removed and put back in, or was it clamped in the whole time? RAM is another thing that will prevent a PC from starting, but you usually get a lot of beeps if there's a RAM issue. Quoted:
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Most likely something just got knocked loose. What happens when you try to turn it on? Do you get a BIOS beep? No reaction at all when hitting the power button. No fans...Nothing. Not sure that an improperly seated heatsink would cause that problem. I think the PC would start up just fine, and then shutdown when temps got too high. Maybe if the fan to the heatsink wasn't in the right place, it may prevent startup. Do you have the original heatsink that came with the processor that you can try? Do you have enough thermal grease to try a few different things? How is the processor installed? Was the processor removed and put back in, or was it clamped in the whole time? RAM is another thing that will prevent a PC from starting, but you usually get a lot of beeps if there's a RAM issue. The machine did start up once after I swapped out the water cooler for the air cooled setup. Then I closed up the case and shut down the system. (FYI:Temps were good) After moving the computer back to it's room...that's when this issue started. I do not have enough grease to try a few things. Processor wasn't removed. It was clamped in the whole time. |
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The machine did start up once after I swapped out the water cooler for the air cooled setup. Then I closed up the case and shut down the system. (FYI:Temps were good) After moving the computer back to it's room...that's when this issue started. I do not have enough grease to try a few things. Processor wasn't removed. It was clamped in the whole time. Quoted:
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Most likely something just got knocked loose. What happens when you try to turn it on? Do you get a BIOS beep? No reaction at all when hitting the power button. No fans...Nothing. Not sure that an improperly seated heatsink would cause that problem. I think the PC would start up just fine, and then shutdown when temps got too high. Maybe if the fan to the heatsink wasn't in the right place, it may prevent startup. Do you have the original heatsink that came with the processor that you can try? Do you have enough thermal grease to try a few different things? How is the processor installed? Was the processor removed and put back in, or was it clamped in the whole time? RAM is another thing that will prevent a PC from starting, but you usually get a lot of beeps if there's a RAM issue. The machine did start up once after I swapped out the water cooler for the air cooled setup. Then I closed up the case and shut down the system. (FYI:Temps were good) After moving the computer back to it's room...that's when this issue started. I do not have enough grease to try a few things. Processor wasn't removed. It was clamped in the whole time. OK, in that case, leave the processor alone for now. Someone suggested unseating and reseating everything. Do this for everything except the processor. I'll assume that since you left it clamped in the whole time, that it doesn't need to be reseated. If you had more thermal grease, i'd say do it anyway, but leave that as a last resort for now. If the heatsink's fan wasn't plugged in, would the MB notice this and refuse to turn on, or would it turn on long enough to overheat and shutdown? The reseat option should take care of any loose wires as well. Also, make sure your power switch is in good. Does the MB by chance have a power button on the MB itself? If so, use that to turn it on and see what happens. That will immediately rule out a power switch issue. |
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OK, in that case, leave the processor alone for now. Someone suggested unseating and reseating everything. Do this for everything except the processor. I'll assume that since you left it clamped in the whole time, that it doesn't need to be reseated. If you had more thermal grease, i'd say do it anyway, but leave that as a last resort for now. If the heatsink's fan wasn't plugged in, would the MB notice this and refuse to turn on, or would it turn on long enough to overheat and shutdown? The reseat option should take care of any loose wires as well. Also, make sure your power switch is in good. Does the MB by chance have a power button on the MB itself? If so, use that to turn it on and see what happens. That will immediately rule out a power switch issue. Quoted:
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Most likely something just got knocked loose. What happens when you try to turn it on? Do you get a BIOS beep? No reaction at all when hitting the power button. No fans...Nothing. Not sure that an improperly seated heatsink would cause that problem. I think the PC would start up just fine, and then shutdown when temps got too high. Maybe if the fan to the heatsink wasn't in the right place, it may prevent startup. Do you have the original heatsink that came with the processor that you can try? Do you have enough thermal grease to try a few different things? How is the processor installed? Was the processor removed and put back in, or was it clamped in the whole time? RAM is another thing that will prevent a PC from starting, but you usually get a lot of beeps if there's a RAM issue. The machine did start up once after I swapped out the water cooler for the air cooled setup. Then I closed up the case and shut down the system. (FYI:Temps were good) After moving the computer back to it's room...that's when this issue started. I do not have enough grease to try a few things. Processor wasn't removed. It was clamped in the whole time. OK, in that case, leave the processor alone for now. Someone suggested unseating and reseating everything. Do this for everything except the processor. I'll assume that since you left it clamped in the whole time, that it doesn't need to be reseated. If you had more thermal grease, i'd say do it anyway, but leave that as a last resort for now. If the heatsink's fan wasn't plugged in, would the MB notice this and refuse to turn on, or would it turn on long enough to overheat and shutdown? The reseat option should take care of any loose wires as well. Also, make sure your power switch is in good. Does the MB by chance have a power button on the MB itself? If so, use that to turn it on and see what happens. That will immediately rule out a power switch issue. Yes the motherboard does have a power switch on it. Good call...I forgot all about that. |
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