8.1 strange problem on first boot of the day

slash2378

Distinguished
Mar 24, 2011
11
0
18,510
Hi

I bought a new pc, i7-4770k, Gygabyte Z87-D3HP, 16Gb Kingston, SSD crucial, GTX770, Corsair 600W 80+

When I turn it on in the morning it boots in 6 or 7 secs but Windows is unusable, mouse is very very slow and laggy, connection is very very slow almost offline, everything else seems fine, but without mouse and connection I cant figure out... after 2 or 3 minutes suddenly everything speed up and my computer is 100% functional...

If I reboot I face no problems at all, reboot in 10 sec, and windows is fast with no problems from beginning... and so on for all day long...

If I turn it off and wait some hours,usually the day after, here's the problem again...

tried to update MB firmware and the problem occurs during the boot, which is very slow, then after 2 or 3 minutes windows is fine again

tried a new beta firmware and the problem is again after the boot...

Is my pc a diesel who needs some time to warm up? :)