• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

Gainward GTX 1070 Phoenix video signal issue

Aug 5, 2015
200 (0.10/day)
Debrecen, Hungary
Processor Intel Core i7-9700
Motherboard MSI Z390 Tomahawk
Cooling Alpenföhn Matterhorn Pure
Memory HyperX Fury 16 GB
Video Card(s) Gainward GTX 1070 Phoenix 8 GB
Storage Samsung 860 Evo 500 GB, WD Red 2 TB
Display(s) Dell P2419H
Case Fractal Design Define C
Audio Device(s) Microlab B-77 + Asus Xonar DSX
Power Supply Seasonic G650
Mouse Zowie ZA11 + Steelseries QcK Limited
Keyboard Genius KB-G235
Henlo everybody,

I've been having problems with a Gainward GTX 1070 Phoenix, which I've bought second-hand recently:
  • When switching on my PC, the VGA won't start as it normally would: the fans won't spin up, and the RGD on its side lights up in red, green and blue colours for around two seconds, but there's no signal after that. If it happens, I have to switch on and off my PC continuously, until there is signal.
  • When I manage to turn on my PC with the VGA starting as well, the VGA loses signal completely randomly and the fans start spinning at 100% speed. It doesn't matter if I'm playing, working or browsing the web. If it happens, only resetting my PC helps.

I'd been using the 441.41 driver from its release with an up-to-date Windows 10 x64 Pro until this anomaly started occurring. I've tried the following, but to no avail, unfortunately:
  • Uninstalling the driver with Display Driver Uninstaller in safe mode and then installing different driver version: the one that is automatically installed by Windows Update, 399.24, 419.67, 431.60, 456.71, 457.30, but none of them seem to have solved this problem.
  • Switching to the 2nd BIOS of the VGA seems to have reduced the frequency of this signal-loss happening, but it still occurs daily.
  • I've flashed a GS BIOS instead of the stock BIOS, but it didn't help either.
  • I've tried the HDMI and all three DisplayPort connectors as well as all three PCI-e connectors on my motherboard, but still no change.

The VGA is in its original condition, the stickers on its back are still untouched.

What could be the reason / source of this problem? And what could be the solution to make it stop happening?

Thanks for your help in advance!
Last edited:
Feb 14, 2012
1,153 (0.36/day)
System Name "No name"
Processor Ryzen 2700X 50Th Anniversary Edition
Motherboard X570 AORUS Elite
Cooling Noctua U12P
Memory 16GB 3200Mhz
Video Card(s) MSI GTX 1070 Ti
Storage Adata 512GB SSD, WD30PURX
Display(s) AOC CQ32G1
Case SilentiumPC Signum SG1V EVO TG ARGB
Audio Device(s) ALC Codec + Maudio AV32 and Fiio E10k + Audiotehnica TAD 400
Power Supply Seasonic G650 650W
Mouse Logitech G203
Keyboard Asus Strix MX Brown
Software Windows 10 Pro x64
Can you try the card on another PC ? Did you also try to unplug the card from the PC and re plugging it ? Also switching the PCIE power cables from left to right.