Motherboard rejecting ram

[thepedro]

i just had the weirdest problem with my pc.

i have 2 sticks of ram set to dual channel mode for the last 2 years.
then last week after i restarted my pc, it didn't show POST but instead the beep sound came up. i looked it up in the motherboard manual and it says that its a ram problem.
so i tried to swap the two and also just boot with one stick but to no avail its still the same beep. then i borrowed my neighbors ram and to my surprise it actually booted up my pc.
i tried my pair of ram in my neighbors pc and it did work there.

so what the hell just happened? is my old ram rejecting my motherboard?

i have a asus p5kpl-am epu mobo and two 1GB ddr2 kingston ram

 

[captaincharisma]

the ram still may be defective even if it works in a certian mobo. try clearing the CMOS and see if that gets the ram to work

 

[thepedro]

the ram still may be defective even if it works in a certian mobo. try clearing the CMOS and see if that gets the ram to work

tried this but still the rams isn't working while the other one is.
is it the mobo or the ram?

 

[smorizio]

have you tried your ram in any other memory slot. sometime a ram slot can go bad and not the memory. also did you try one stick of your friends ram and one stick of your ram. if you have a local computer store or micro center see if they have a ram tester to see if both stick are dead..dead...if they have a life time warranty rma them.