Asus AMD/​ATI Radeon HD7790 1GB GDDR5 crashes with GPU Tweak

I have just got my build:
MB Asus M5A99FX PRO R2.0
RAM 2x Crucial Ballistix 4GB DDR3 PC3-12800 CL8 BLT4G3D1608DT1TX
GPU Asus AMD/​ATI Radeon HD7790 1GB GDDR5 PCIE HD7790-DC2OC-1GD5 Case Nexus Tower Thrio 310
2x Nexus Case Fan 120mm D12SL-12 BLACK/​WHITE
HDD Western Digital CAVIAR Blue 1TB SATA 7200RPM 64MB WD10EZEX
LCD Philips 227E4QHAD
PSU Corsair CX600 ATX2.3 80+ 600W

I have installed windows, drivers and GPU Tweak latest version. Whenever I change anything in GPU Tweak (fan speed, for example), screen goes dark. Reseting does not help - when windows login screen should appear, black screen crash. Only power down (holding power button) helps.

How could I fix that?
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More about asus amd ati radeon hd7790 1gb gddr5 crashes gpu tweak
  1. do you have the latest BIOS?
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