Asrock Z77 Extreme 4 + Windows 10

hi,

since upgraded from windows 8.1 x64 to windows 10 x64
my system got a little hit in performance.

when using popular benchmarks I receive about 5-10% lower
results as before with win8.1. now I'm going to investigate
what went wrong. resetting BIOS to defaults does not change
anything and i guess all my drivers are up 2 date. the system is clean.

have a look at these pictures - there is something wrong with the reference-clock respectivly buspeed. I doesn't hit 100MHz as before under win8.1. The RAM-clock throttles down to 1034MHz instead of 1066MHz with the old OS.

what is going on there an how can we fix it?




external link 2 the screenshots




SYSTEM
Asrock Z77 Extreme4, BIOS 2.90
Intel Core i7 3770K (watercooled and stable for about 2 years @47 x 100MHz; incl. EIST/C-states)
4x 4GiB G.Skill DDR3 RAM @1066MHz (9-11-10-28-1T)
12GiB NVidia Geforce GTX Titan X
Hauppauge HVR-5500 DVB-C/T/S Card /PCIe
Creative Labs Soundblaster Titanium /PCIe
many harddrives, a few SSDs and an ODD (Bluray)


regards 4 your assistance and many apologies 4 my worse english - I'm still typing from germany.

The Doctor!


Edited by DoctorWho - 22 Sep 2015 at 2:40am