Gigabyte mobo problem

Friend brought their 'dead' PC round. Only about 2 years old. Gigabyte
GA-8S661FXM mobo.
PSU fan goes, CPU fan goes. Nothing else happens. No speaker bleeps, no
screen activity at all. mobo RAM_LED flashes all the time (not sure if
it's meant to!) A quick check with a meter suggests all the PSU voltages
are about right. (Tried another PSU anyway, but no difference.)
Disconnecting all the drives makes no difference.

Any thoughts??

Thanks

S

Flashing light probably means its not detecting any RAM. Try reseating the RAM and / or trying alternative RAM. If a comp doesn't detect any RAM at all, it generally won't boot, not even to POST.

Tried different ram - no change. Ditto reseating CPU.
Different PSU makes the RAM led flash at a different rate, but that's all that happens.

Doesn't look good!

S