Ram doesn't work with new CPU but same ram works with the old one

stavane2000

Prominent
Jan 12, 2018
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Bare with me as im really new to this but i upgraded my cpu from a E5700 processor to a E7500
but one of the sticks stop working after that upgrade but that same stick works with the E5700 basically when i try to turn it on with the E7500 the computer makes 1 short beep then a long beep and it continues but if i put the E5700 back in then it turns on fine


this is a very old rig

motherboard is a foxconn 2a8c
the ram thats giving trouble is a KVR1333D3S8N9/2G 1.5
the ram that works is a elpida 2Rx8 pc3-10600U-9-10-B0
power supply is a ATX0300D5WC

any ideas on the issue? ive also tried a single 4gb one thats from same kvr but same issue
 
Solution
Strange, as the IMC is in the chipset back in the socket 775 days. However, it looks like you are mixing single rank and dual rank memory modules, and the 7500. Could be that the 7500 doesn't support this mixed config. while the 5700 does.
Strange, as the IMC is in the chipset back in the socket 775 days. However, it looks like you are mixing single rank and dual rank memory modules, and the 7500. Could be that the 7500 doesn't support this mixed config. while the 5700 does.
 
Solution