Windows 7: BSOD every month

this computer is two years old and i been getting bluescreens only this year and they happen at least once a month. although they don't bother me most i wanna fix them before they become more of a problem.

Motherboard N-Alvorix-RS880-uATX (Alvorix)
Processor AMD Phenom II X4 820
Memory 6 GB
Video graphics AMD HD 6570
Sound/Audio Integrated ALC888S-VD audio
Networking LAN: 10-Base-T
802.11 Wireless b/g/n PCI-E Mini card
Hard drive1 TB
Power Supply450W

All look rather disk-related. A couple of things you should do:

• Magic ISO driver shows up occasionally as fault. You're using the very old version of it which predates both Windows 7 RTM and retail. You'd best update it or get rid of it altogether as it's bound to be causing some problems, if not these.
• Clean inside of your PC. Reconnect cables - especially drive cables.

If these recommendations do not resolve things, then I recommend turning on Driver Verifier. Do not select the following checks: Force Pending I/O Requests, IRP Logging, and Low Resource Sim. Select all other checks. Make sure to restart system after you finish setup. If you experience a boot loop afterwards, go into Safe Mode by pressing F8 prior to Windows logo and disable DV there. Provide us any new crashdumps.