The question shows if the display shuts down during gaming, suggesting a potential GPU problem.
The question shows if the display shuts down during gaming, suggesting a potential GPU problem.
Hello. I'm experiencing problems with my Sapphire 7900 xtx Nitro + card. After receiving it, I've encountered consistent issues. When attempting to play a game, the screen goes black and displays "no dp signal found," though the audio remains audible for a short time before cutting out. My PC fans become very loud, forcing me to shut it down temporarily so I can see anything on the screen. Once I power it back on, the display appears but the graphics card has been disconnected, leaving only the Microsoft Display Adapter connected. I need to reconnect the card again to adjust graphics settings, but this process repeats whenever I restart the PC—sometimes after a few days, sometimes after a week or two. Now it happens every time I start a game.
Currently, my display hardware shows: "This device is not properly working because Windows cannot load the required drivers (Code 31)." This issue disappears when I reconnect the card, but it reappears again. Occasionally the screen goes black, and even after restarting the PC, the GPU remains connected without needing to reconnect. Mostly, the GPU disconnects entirely, requiring me to reconnect it manually.
PC Specifications:
- Mobo: Asus Rog Strix Z790-H Gaming WiFi
- CPU: i7-14700KF
- GPU: Sapphire Nitro+ 7900 XTX
- RAM: 64GB G.Skill Trident Z5 RGB DDR5
- PSU: EVGA GT 1000, 80+ Gold
I've tried several fixes:
- Updated BIOS to the latest version
- Disabled XMP profile
- Updated graphics drivers to the newest version
- Used ddu to uninstall and reinstall drivers repeatedly
- Plugged GPU and GPU power cables completely
- Removed CMOS battery for 5 minutes before retrying
- Performed a fresh Windows installation
- Used a DPDK cable and HDMI connection
I’m unsure what else I should try and would greatly appreciate your assistance. Thank you.
Based on your description, it would be advisable to check for warranty or RMA options for the graphics card. Do you know if it uses a single daisy-chained cable or multiple cables? Also, do you have another card that needs extra PCIe power cables to operate properly? You can test if the problem persists with different hardware or functions correctly.
I'll attempt this again if problems arise. After installing Windows fresh last night, I haven't managed to set up my PC yet. I'll update you once it works or if the issue returns. Is this another method compared to using ddu?
It requires 3 8 pin headers. I possess 2 8 pin to 8 pin headers and a daisy chain, including one for the GPU and another hanging. I don’t have another card available to test anything.
I’m not very familiar with your power supply, but the certification, 10-year warranty, and self-test on start seem to give some assurance. These were likely released in 2011, so they should still be covered under warranty if you need a check-up.
Before committing fully, I’d suggest looking for a way to test the 7900 myself as well as using a power supply with a similar draw. This could involve reaching out to a local enthusiast or a small shop. I wouldn’t advise using Geek Squad unless it’s nearby.
The Windows error you mentioned is typically due to a damaged driver. Removing and reinserting the device often resolves the issue. However, if you performed a fresh installation of Windows, the driver problem should be resolved. If the issue persists after the fresh install, it may indicate a hardware fault, possibly related to the card or power supply unit.
Also, avoid using two connectors on the same cable for this card. Use three different cables from three separate PSU outputs. The 7900xtx can handle up to 350 W, with some reports of spikes reaching 400 W. Each 8-pin cable is rated for a maximum of 150 W. Connecting two cables to the three 8-pin headers only provides 300 W, which is insufficient. While the 8-pin connector can technically deliver more than 150 W, it's best to adhere to the cable specifications.
You're asking if your voltage needs cover the 75W from the PCIe slot as well. I completely get your point about that.
Using two cables and the PCIe slot provides 375 W. A spike above 400 W would be problematic. I wouldn't recommend it, but if possible, I'd prefer three outputs instead.