I have a Vostro 260s core i3 3.3ghz with 6 GB ram running Windows 7 64 bit. my current bios is ver A06
I have downloaded the correct bios updates (the ME-10 and earlier ME-08 exe files) but to no avail

I have searched these forums and done much googling without finding a solution.
the attached screenshot was of no help at all.

the reason for wanting to try a new bios is that recently I got 'system fan failure' message at boot and still have it - even though I have installed a new fan, and tried the 'remove cmos battery' method of supposedly getting rid of it.

I'm a bit baffled as to why Dell diagnostics and Support Assistant have been of no help either.
I always input my Service Tag but the tests don't work for me - be it the quick or full test the screen just stay there without completing - even if left for over an hour.

I have tried my best and am now out of options unless someone here can solve this for me.