So I have c2q q8400 2 gb ram 1333mhz g41t-m12 and gt 630 I upgrade the ram to 4x2 gb 1600mhz but the motherboard not support I decided to buy new motherboard asus p5g41t-m lx but will the new motherboard support?
https://www.asus.com/supportonly/p5g41tm_lx/helpdesk_cpu/ but in the website it say support core 2 quad q8400your cpu don't support itP5G41T-M LX - Support
www.asus.com
Ow yeah thanks!your cpu don't support the ram speed. that was your question
and there a link to the manual. read the manual about ram speed