Just setup new system
Intel DP35DP
Q6600
Corsair HX520 psu
X800GTO
2 gb Crucial 667
Liteon 1635 dvd rw
WD sata II 160 gb
On boot the intel boot screen shows corruption, starts ok but then all image etc garbled system goes into reboot cycle, manage to get into bios and all seems ok, temps etc.Switch from ahci to ide and after reboot no garbled screen just post codes run across top of screen and then boot to xp and install ok, install chipset drivers and lan drivers and on reboot system hangs for a while and is very sluggish, shutdown hangs system completely. Update bios,clear cmos & try alternate psu still same. Return Dp35Dp and ask for it to be tested but shop gives replacement.
Setup system again on initial boot same garbled screen.
Enter bios ok and check temps/voltages all ok, drives show ok.
Reboot with bios update cd in place, screen garbled again but bios disk boots and updates bios ok.
Enter bios and setup sata for ahci and disable some things not needed, firewire, onboard audio.
Reboot with winxp disk in drive, still screen garbled but winxp boots and installs without errors.
Install chipset drivers and lan drivers and on reboot keyboard & mouse don't work, try different mouse still no go, seems all usb dead.Reboot and still the same.
All temperatures and voltages show ok, intel desktop utilities and bios hardware monitor.
Memory and drives psu etc all running ok in previous setup, d945pvs/p4 3g and have been for past few years.
Really appreciate any help.