I flashed this board with a F5 SLIC BIOS (which I'm pretty sure I got from here, although it has an HP certificate and I haven't been able to find the same one with a search) a few years ago. I want to do my friend's board now, so was checking the procedure and decided to try the F6 SLIC BIOS I now have. I flashed using Flashspi.exe (v1.32) and after I was able to boot Win7 as normal, but then it started behaving strangely. I rebooted and flashed again, this time using /C /E to clear the CMOS and DMI data. This seemed to work, as after rebooting the BIOS settings were reset to default. However, after adjusting the settings back to how they were before, I could no longer boot, with just a "NO GRLDR" error (I use grub4dos). I tried setting each of my HDDs to first in the BIOS but with the other one I just get an error about Invalid Boot Disk, so obviously the other one is correct as it's got the grub4dos MBR on it, it just can't find the glrdr on the HDD. I decided to flash F5 SLIC BIOS back, using /C again to clear the CMOS data, but not the DMI data. This didn't reset the BIOS settings and they were as I'd set them before. I still am unable to boot though. I've tried it on AHCI (which is what I was using before) and IDE but it's still the same, so I can only guess somehow the HDD has got corrupted Could someone advise the exact correct switches I should use to flash please? Once I'm sure I've done that right, I'll have to boot from my USB stick into a PE and check/repair the HDDs.