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Monday 23 July 2012

BIOS battery cause mainboard failure

The first week of classes, the colleague embrace the computer Laptop cpu fan to look for me, the reason is fairly well last year holiday computers, can come back off that can not open the machine, all have no reaction. So, one would have come to the electronic administrator.

Preliminary judgment is the power problem, open the mainframe box, from the mainboard plucked power 20 feet double row socket, short circuit signal lines (PS-ON) and ground, power can be the normal starting. Look to the mainboard, the rock the motherboard is 810, PBC, capacitor, such as work is pretty good, on the surface, the mainboard no burned phenomenon, also didn't smell smell of burnt. Discharge of BIOS, still no reaction. Think about two days before the damp, might damp, opened a motherboard with dryer ten minutes, or not. And other accessories has tried one, all no problem. The mainboard has a problem is yes, but where's the problem here? Think can not its solution of I,Acer Aspire 1410 Laptop cpu fan with a BIOS practiced with the battery, carelessly, fell on the ground, has rolled under the table, in it gets stuck, but a take not to come out. Then shoving the another piece of battery tear open come down to mount, ready to give up, or to the computer city professionals it. Strangely enough, installed, turn to everything is normal. This rule out fault. I can't stand, remove the table, find the original battery change, and have no reaction, change a, everything was normal. Originally the culprit was really the BIOS batteries.

Afterwards reflection, this computer already use nearly three years, have been nothing, but the battery will have no electricity but BIOS, plus a few days ago damp, the only to save the last bit of electricity run out, so that appeared so fault. And because too many batteries, still can start machine, neglecting the BIOS batteries.Acer Aspire 2000 Laptop cpu fan So if you meet this kind of situation, also do not prevent try, may have unexpected harvest.