Beep after removing RAM

March 21, 2011 at 22:52:57
Specs: Windows 7, AMD Athlon II 640 / RAM 4GB DDR3
Hello everyone, I just bough a new pc today (HP Pavilion p6754y) i wanted to replace the existing RAM memory to a better one i had on my old pc, it didn't fitted into the RAM socket, so i just inserted back the RAM memory that came with the new pc. Now the pc beeps and it doesn't even boots up, the monitor just remains black. I made sure of inserting them just like they were when i bough the pc, switching the order they are placed, and also i made sure that they were inserted tight and that the RAM's hole is in the right spot. I also remember the same issue happened with my old pc, after i removed the ram memory to clean it and then inserting it back into it's place, the pc started beeping and didn't even booted up. What can i do?

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March 22, 2011 at 05:18:17
Your new PC apparently has 4GB of DDR3-1333 which in the correct RAM for an Athlon II. I don't know what you thought you were going to gain by attempting to change it? I'm guessing your old RAM was DDR2 which is physically different that DDR3. Did you unplug the power cord before messing around inside the case? You didn't try to force the old RAM into the slots, did you? Hopefully you didn't try to power up with the wrong RAM in place? As long as you didn't damage the RAM slots or try to boot up while the old RAM was installed, your system should be OK. The problem may simply be that you haven't reinstalled the original RAM correctly.

If you upgrade the power supply, install a decent video card & dump all the garbage HP software, you could have a reasonably good machine.

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March 22, 2011 at 09:17:50
Ok, i'm not experienced in hardware, but i know that there are many different sockets inside a motherboard, i learned that the bad way long time ago. So before inserting the DDR2 RAM, i made sure that it could fit inside the socket, and just by looking at it, it was obvious that it won't fit, so i didn't even tried to insert it. One thing i didn't do was to unplug the pc before extracting the RAM, but of course the pc was completely turned off.
Is there any proceedure to follow to install the RAM back into it's place? Because i'm pretty sure that i'm not inserting it the right way, even if it's inserted tight into the socket and the RAM locks are on its place.

PD: And yes, i tried every RAM order combination on the four sockets that the motherboard has

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March 22, 2011 at 13:30:24
"of course the pc was completely turned off"

If the power cord wasn't unplugged, there was still power going to the motherboard, that's how ALL ATX systems work.

RAM can only be installed one way. Notice that there's a notch on the contact edge of the memory stick. That notch MUST correspond to the key in the memory slot. There's only two possibilities - right or wrong. Notice the difference between DDR2 & DDR3:

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