Recently, I bought a new Core 2 Duo to replace my Pentium D Extreme Edition. I installed my new CPU and my system wouldn't boot in other words the fans were spinning but my display was blank, so I tried reinstalling my old CPU to see if it would work again and it still wouldn't boot. Anyways, I fixed it by removing a stick of ram out of the 3 sticks and it worked which is weird because before I tried upgrading it worked fine with 3 sticks. All 3 sticks of RAM are working. If I put it in different orders such as 1 stick on the first slot and the 2nd stick on the 3rd slot it wouldn't work, it would only work if the the 1st stick was in the 1st slot and the 2nd stick was in the second slot. Now, why doesn't it work with 3 sticks of RAM anymore? Motherboard: ASUS P5B-E
It expects matched pairings in the memory channels... If I recall, C2D can only handle Dual Channel memory...
Well, it doesn't work with either my old Pentium D Extreme Edition or my Core 2 Duo so that can't be it since it worked before. Actually, both sticks are in the same channel meaning its single channel if I put 1 stick in the first channel and 1 stick in the other channel meaning dual channel my computer won't boot. Core 2 Duo supports single channel and dual channel. In other words, when I put them on dual channel it doesn't work but when I put them on single channel they work. The RAM is identical. Edit: I got it to boot into Windows on dual channel but it is very unstable and BSODs.
First thing is to run Memtest86+ to check the memory is OK. When you changed processors, did you first set the BIOS to auto-recognise everything?
Well.. I'm pretty sure the RAM is okay since it works perfectly fine in single channel mode but the second I put it on dual channel mode it Windows BSOD right after it boots. The BIOS settings are set to the defaults.
I would agree with the above tbh - although it is a little tricky. Is the C2D compatible with the mobo in the first place?
good question krittit http://support.asus.com/cpusupport/cpusupport.aspx?SLanguage=en-us&model=P5B-E that should answer it. His sig says the E8400 (if you go by clock speed(and i dont know if its overclocked)) which is supported. but the bios number looks pretty high.
I bought a new motherboard (ASUS P5Q Pro), graphics card (GeForce GX2), and RAM. When I boot my PC, right when it hits the Windows loading screen it BSODs even in safe-mode.
