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COMPAQ PP2140 won't do anything but powering-up

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#1 pontacq


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Posted 11 June 2015 - 11:48 PM

Hi there, I've a Compaq PP2140 to which I plugged in a laptop universal adaptor since its original got lost; now it just won't boot up or do anything else but a short less-than-a-second screen blink when turned on; then hdd light turns off, and the only lights that remain on are power-on, AC-IN and batt charge, this last one blinking all the time (1,5 blinks per second). I must say that this computer has been off for over 3 months, stored at a shelf in a bedroom. 
What I've tried so far: remove batt, clean-up RAM slots with isoprophyl alcohol and replace RAM modules, remove HDD and re-insert it. 


Any help will be appreciated.

Thanks a lot.

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#2 Citizen_WD


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Posted 12 June 2015 - 03:12 AM

Hello pontacq, and welcome, 
First I'd like to point out that plugging in a non-factory power adapter may lead do serious issues, such as current overload. This may cause the failure of many components, so maybe it's a good idea to look up the voltages and parameters that the universal adapter puts out. So try with the original power adapter and also try removing the CMOS battery for 10 Minutes and if possible clear the CMOS. This is easy with a desktop, but with most laptops it requires disassembly and the "Clear CMOS" jumpers are not normally identified in user manual - If they even exist. It's probably worth replacing the battery with a new one since the laptop has been sitting for a long time. If none of this helps, it's probably best to go to a specialist. 
Lastly - if you have important data on the drive you can attempt to salvage it by yourself but connecting it to a PC or external docking station. 
Hope this was helpful, Citizen_WD

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