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look to see if fan over cpu chip is running. if the cpu socket fan is not spinning sometimes the pc will not boot. the cpu has to be kept cool so its a safety default. lose connections have been know or broken.
just fixed such a problem by resetting the wires on the motherboard.
check the power cable that goes from the CPU fan to the mother board. it could be lose off or broken. if broken you will need to replace fan/heat sink with a new one. if disconnected look for a place on the motherboard with 4 little pins sticking up. check to see if it says CPU fan next to them if so plug it in.typically its close to the edge of the motherboard near the CPU.
open your pc panel, look for the heat-sink fan over your cpu(processor). there is a small fan over it and if it is not spinning your PC will not boot. could be a wiring issue where the wires(white/red usually) are broken or not connecting to motherboard good enough. check those but be careful no to break wires or connections. you may need to replace the heat sink module. if any capacitors on motherboard are swollen(little cylinder looking objects with + mark on top) will indicate overheating and motherboard may have failed. if fans spin on heatsink, then pc boot file may be damaged where then a shop will cost to fix it. fans will be the cheap fix else$$$
basically this is your motherboards way of saying its broken and most likely not repairable, however this may also me the motherboard telling you that the ram of cpu fan are not running properly if it's ram replace all modules and try again if its the cpu fan try replacing it with a new fan
Check the pins on the motherboard where you connect the CPU fan. Could be just a broken solder joint. You can connect the CPU fan to another connector for an alternate fan as a temp fix, especially if you are not adept at soldering.
That's because it heats up more easily and faster, which usually makes the fans spin faster and results in being noisy. Have you ever cleaned out the interior of the computer? If not, or if it's been awhile since it's been done, then buy some canned air for dusting electronics, open the side of the computer case (while it's not powered ON), and blow out the fans and the heat sink. If you get alot of just clogging up the heat sink, then it will not dissipate heat correctly; which results in the fans running more often. It that doesn't help any, then I would try to figure out if one of the fans is making alot of noise because it's going bad. You can find replacement fans on ebay, or at local electronics\computer shops.
First make sure that the CPU fan is properly connected to the motherboard. There is a connector on the motherboard that is usually labeled CPU_FAN.
If the fan is properly connected, but isn't working, a replacement can be purchased for a reasonable price. Check with Gateway or your local computer supply shop and they will be able to help you find the right fan assembly for your CPU.
Hope this helps. Please take a moment to rate this solution. Thanks.
You might have a broken or dirty CPU fan. The CPU heat sink fan is responsible to cool down your CPU while it is on. If it is broken or stuck(dirty), then your machine will power off automatically preventing CPU damage or worse-case-scenario:FIRE caused by "burnout".
Your CPU heat sink might not be mounted on your LT properly. Also causing overheating; thus shutting down.
Its a laptop right ? Right! Another thing you could try is to unplug the battery, and let it run from AC power only and see if it makes any difference.