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The orange light shows the battery is charging. It will turn green when the battery is fully charged. The white light shows there is power entering the computer. The usual problem with a computer when there is no response to pressing the power button is that the motherboard has failed requiring the replacement of the motherboard. If the computer is still under warranty there should be a free motherboard replacement, if not, and you are able to do the replacement, you can find motherboards for sale on various websites. Be aware that motherboard replacement for laptops can be expensive if done by computer repair shops.
Intel core tm duo cpu e4500 motherboard Intel = Processor (CPU ) manufacturer Intel Core tm = Trademark. The Intel Core is a Trademark from Intel CPU stands for Central Processing Unit. Another term used is Microprocessor, or simply - Processor for short. e4500 is an Intel Core2 Duo processor. Maximum frequency rate ('Speed') is 2.2GigaHertz. 2MegaByte of L2 Cache. (2MB of L2 Cache) 800MegaHertz Front Side Bus. (800MHz FSB)
Tells me Nothing about the actual motherboard. Look on the motherboard for a Model Number. May be in center of motherboard. May be on edge of motherboard. May be in-between one of the expansion slots, on motherboard.
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Also post what the problem is, in your best description.
Computer does not turn on. (Power Supply does not turn on) Computer seems to turn on, but get No Signal on monitor, or Sleep Mode on monitor, or Power Saver Mode on monitor. LED lights light up, and fans spin.
If all you get is a green light, and no fans, hard drive spin up, nothing on the monitor, well than, it could be that the power supply is the wrong one for your computer. Either that or the motherboard is shot.
double check on the power supply, that is probably the problem.
i,d suggest that the power cut may have been a surge or spike.
This May have blown your power pack, and caused possible motherboard Damage.
** Did you use the same lead for the PSU** and have you checked the (main fuse in the Plug ? )
If the monitor light remains orange, this is a possible graphics card fault, or driver that is not allowing the monitor to come out of standby mode. You could try installing a different graphics card, or swapping the monitor cable to the on-board graphics card if it has 1.
If none of the above works, assume the motherboard has suffered damage.
if you have onboard video try a video card that fits in PCI or AGP slot or try a different video card in place of the one you use with everything else seeming to be correct this seems like the only thing you have not done