This problem originally started about a month ago, with the odd crash (mouse would go 'jittery/laggy' and then eventually freeze - at which point it would sometimes BSOD and other times just restart). Then when I went to restart it would come up with this disk boot failure. At this time I would leave the pc off for a couple of hours/overnight and then it would start up normally again and work fine the next day.
However now I cant even get this far....all it comes up with whenever I power it up is the 'disk boot failure, please enter boot disk' message, after going through BIOS and POSTing. Even when I go into BIOS there is no sign of my HDD being present in the system.
I've tried changing SATA/power cables, using diff SATA ports, reseting BIOS, running one stick of RAM, etc to no avail. Obviously cant boot into windows or see the HDD so cant run Seatools or any other diagnostic tools. Also have no spare parts/ another pc to test the components with unfortunately
Just completely run out of ideas and was wondering if anybody had some last suggestions before I RMA my HDD or start replacing hardware (someone else has suggested a dying psu).
Asus p5n-e sli mobo
Seagate Barracuda 7200.12 500gb (about 1.5yrs old)
Windows 7 64bit
2gb (4x512mb ddr2 553mhz)
Coolermaster 650w psu