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ASUS P5KC - 8gig RAM - Won't boot Win7 Pro x64
Hi, I successfully installed a genuine OEM copy of Win7 Pro x64 on my P5KC system. It was running 2gig 800mHz DDR2 Kingston KHXxxxxxxxx. So, wanting to upgrade to DDR3, I bought 2 x 4gig Corsair vengeance DDR3 1600mHz for my P5KC (part number CMZ8GX3M2A1600C9B).
Fact: prior to installing Win7 Pro x64, I was running XP Pro SP3 32-bit, I installed the new RAM to see if there would be a compatibility issue. There was not! The BIOS recognised the new RAM and POSTed properly.
Like many people, I had "issues" installing the new operating system, and so, as per the advice I have read on many forums, I stripped the PC back to basics (which i will note at the end of this post), re-installed the Kingston RAM, and presto! Win7 successfully installed. After all drivers were updated, the PC was running very well - happy camper! I decided to install the DDR3 Corsair memory.
PROBLEM: With 8gig of Corsair DDR3 memory installed, the PC will not boot at all - nothing! But it will boot with the Kingston DDR2.
QUESTION: If it's not a memory/mobo compatibility issue, what could be the problem?
SYSTEM:
CPU: Intel E8500 @ 3.16gHz
BIOS: 1203 (latest version)
DVD: LG 4166B
HDD: 1 x 250G WD Caviar
RAM: 2Gig DDR2 800mHz Kingston KHXxxxxxxx
GPU: Gainward HD3870 512MB
O/S: Originally XP Pro SP3 32-bit --> clean install upgrade to Win7 Pro x64
Last edited by ESPGHIA; 24 May 2012 at 22:38. Reason: grammar