this whole pc has been a bit of a struggle so far so im gunna lay my issues on the table and hope that some one or alot of you can help me 
so this is my current spec ill also include links to the product.
mother board - MSI(of course) H55M - P33 - http://www.overstock.com/Electronics/MSI-H55M-P33-Desktop-Motherboard-Intel-Chipset/5222931/product.html?cid=133635
Processor - intel i3 540 - http://www.overclockers.co.uk/showproduct.php?prodid=CP-312-IN&groupid=701&catid=6&subcat=1671
Random access memoray - OCZ gold 4GB (2x2GB) ddre pc3-10666C9 1333MHz Low-Voltage Dual Channel (OCZ3G1333LV4GK) [OCZ3G1333LV4GK]
http://www.overclockers.co.uk/showproduct.php?prodid=MY-183-OC&groupid=701&catid=8&subcat=1516
PSU - 700w ocz modxstream http://www.overclockers.co.uk/showproduct.php?prodid=MY-183-OC&groupid=701&catid=8&subcat=1516
GPU - nvidia XFX 9600gt 512mb (sorry no link - product seems to be to old)
HDD - maxtor 80gb ( again no link product is very old).
so ive listed my pc, here comes to problems
so i put this budget beast together and hoped and prayed and it booted nicely. but i was running 32 bit windows 7 and i wanted full benifits of my i series CPU so i formatted my drive and installed windows 7 x64 ultimate. went on a treat but i kept getting constant errors. and BSOD, so i assumed my copy of windows was faulty, and took it back to my local retailer and asked for a new copy. took it home and the problem persists.
all the drivers ive downloaded and installed are x64.
also during installation of windows i kept gettin errors saying it failed to un compress files and failed to read the disc. so i tryed booting from usb stick to avoid disk read failures, so i tryed that and i got the same errors. so i then downloaded windows 7 and tryed that via usb and disc and still got the errors. so i swapped my sata cables. then my pc wouldnt turn on. so i cleared the cmos and it started up, i did the setup and loaded optamized defaults. but when i boot it loads my msi image then it displays a black DOS like screen with a underline in the top left corner flashing for around 6-8 seconds. this didnt happen before i cleared cmos.
now i finaly have windows 7 on here i am still gettin errors and alot of my drivers that i am downloading keep givin corrupt data errors.
BSOD. im gettin these every 30 mins maybe a little more, they are according to my event log event id 42 ( kernel error) and physical memoray dump.
im starting to really stress, i have read that the low voltage ram could be the exscuss for the BSOD's and i should up the voltage to 1.55.
and possibly my hard drive is passed its day?
please if any one knows any soloutions to these problems i will be truly greatfull

so this is my current spec ill also include links to the product.
mother board - MSI(of course) H55M - P33 - http://www.overstock.com/Electronics/MSI-H55M-P33-Desktop-Motherboard-Intel-Chipset/5222931/product.html?cid=133635
Processor - intel i3 540 - http://www.overclockers.co.uk/showproduct.php?prodid=CP-312-IN&groupid=701&catid=6&subcat=1671
Random access memoray - OCZ gold 4GB (2x2GB) ddre pc3-10666C9 1333MHz Low-Voltage Dual Channel (OCZ3G1333LV4GK) [OCZ3G1333LV4GK]
http://www.overclockers.co.uk/showproduct.php?prodid=MY-183-OC&groupid=701&catid=8&subcat=1516
PSU - 700w ocz modxstream http://www.overclockers.co.uk/showproduct.php?prodid=MY-183-OC&groupid=701&catid=8&subcat=1516
GPU - nvidia XFX 9600gt 512mb (sorry no link - product seems to be to old)
HDD - maxtor 80gb ( again no link product is very old).
so ive listed my pc, here comes to problems
so i put this budget beast together and hoped and prayed and it booted nicely. but i was running 32 bit windows 7 and i wanted full benifits of my i series CPU so i formatted my drive and installed windows 7 x64 ultimate. went on a treat but i kept getting constant errors. and BSOD, so i assumed my copy of windows was faulty, and took it back to my local retailer and asked for a new copy. took it home and the problem persists.
all the drivers ive downloaded and installed are x64.
also during installation of windows i kept gettin errors saying it failed to un compress files and failed to read the disc. so i tryed booting from usb stick to avoid disk read failures, so i tryed that and i got the same errors. so i then downloaded windows 7 and tryed that via usb and disc and still got the errors. so i swapped my sata cables. then my pc wouldnt turn on. so i cleared the cmos and it started up, i did the setup and loaded optamized defaults. but when i boot it loads my msi image then it displays a black DOS like screen with a underline in the top left corner flashing for around 6-8 seconds. this didnt happen before i cleared cmos.
now i finaly have windows 7 on here i am still gettin errors and alot of my drivers that i am downloading keep givin corrupt data errors.
BSOD. im gettin these every 30 mins maybe a little more, they are according to my event log event id 42 ( kernel error) and physical memoray dump.
im starting to really stress, i have read that the low voltage ram could be the exscuss for the BSOD's and i should up the voltage to 1.55.
and possibly my hard drive is passed its day?
please if any one knows any soloutions to these problems i will be truly greatfull