Okay so today was my birthday and my parents gave me a q8400 quad core processor to upgrade my pentium D 925. The installation of the chip was fine but after I booted it wouldn't post so I upgraded the bios wich fixed the problem but now I have a problem booting into an operating system. So I first have to choose the hard-drive from the boot menu then after that it either gets a blue screen of death or just reboots. I have also tried reinstalling windows but it came up with an error 'The instruction 0x78ea61bb the reqired data was not places in memory because of an I/O error status of 0xc0000001.' I'm wondering if you could help me resolve this problem 
Thank You in advance
T

Thank You in advance
T