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I had problem in my pc that kept hanging n display pixels were set bad. I removed my both RAMs when power was on(pc was shut down).

After I reinserted them, one of them works and other is not(it beeps when I insert it). I tried it 6-8 times to ensure that it is fitted properly.

Why is this beeping? memory failed due to "power on" or something else?

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closed as too localized by Ƭᴇcʜιᴇ007, Sathya Jan 6 '12 at 10:55

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The PC got to be unplugged before you start the maintenance measures. –  Aki Dec 26 '11 at 15:35

1 Answer 1

Your mainboard has some voltage on it, if your PC is shutdown but the PSU still switched on. This is to support features like "wake on LAN" and other stuff.

I have often exchanged parts in my computer with the PSU on and nothing happened, but it is always a better idea to switch it completely off, because you can't know which parts are under current while you are removing them. (and this still does not mean that they have to break, but they can. its like defusing a bomb, green cable first)

You can look up what the beep codes tell you, they are normaly a sequence of some long and short beeps that help indicate what is wrong. (bad memory, bad vga etc)

Here is one site, be aware that different BIOS' have different codes,but there are not that many BIOS Vendors and the codes are mostly very similar.

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My pc works with second RAM.so I don't think beeps indicate any other problem. –  Akash Dec 26 '11 at 15:34
    
Is there any way to decide that my RAM is now failed that cannot be used again? –  Akash Dec 26 '11 at 15:36
    
Any symptoms that shows failure due to "power on"??? –  Akash Dec 26 '11 at 15:37
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and turn the PSU off this time :P –  Baarn Dec 26 '11 at 15:39
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@Akash Walter is not your personal computer support technician. If you have a question, please ask it properly on this site, and provide much more information about it. Use the amount of detail in this question as a template. –  Daniel Beck Dec 26 '11 at 16:25

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