RAM not working!!

[chouhow]

earlier i was having asus A8NE mobo,which due to some reason suddenly stop working by producing beeps and no display on monitor.so i manage another mobo of winfast 939 socket,but to my surprise everytime i put RAM into it it stops working or starts rebooting again and again. i have kingston 512MB*2 at 400MHZ RAM, which used to work fine in my earlier mobo but not in this.than i was having a 128mb ram seperate and put that into it and which is working fine in it.
the winfast mobo supports upto 2GB and upto 400MHZ RAM.so as far compatibility issue is concern its ok
please help me in solving this...
regards

[comp@ddict]

what's the frequency of that 128MB ram seperate BTW?

[chouhow]

its a very old RAM, cant read at what mhz it runs.....?

[comp@ddict]

Then, MHZ of old ram is different, causing it not to work. Abandon that ram dimm and just keep the new ones and check if working

[chouhow]

no!!pls read again,the older RAM is working,but my two sticks of newer RAM not working..

[comp@ddict]

well, prob wid the mobo as far as i can presume, get it checked