I recently purchased an Astral OC 5090. the motherboard and power supply and CPU are new as well. PSU AUS ROG Strix 1200W Platinum, motherboard is a Z890 Maximus Extreme and CPU is a Core 9 285k. GPU is stable, no issues with temp or graphics during a game.
The issue is that the front left fan (side fan) spins up to around 80% (estimate) at startup with no load (.4 amps per pin) at 39C, super loud and annoying, stays on and does not shut off even with the 0bd switch enabled, the right side fan is around 30% but not adjustable either. Adjusting the AI modes in GPU Tweak does nothing. GPU Tweak is not receiving any monitoring from these fans, shows 0 rpm and adjusting the fan curves does nothing. Center and back fans are completely controllable and indicates rpms in GPU Tweak and GPU-Z based on curve as expected.
Fan do not respond when 0db radio button is turned off. GPU-Z shows 0 rpm even though the fan is at 100%. NVIDIA driver is 576.80, BIOS is current and set to Q mode, all other windows drivers are up to date, no issues shown in device manager. My 4090 runs on this platform with no issues.
No other AI fan control or fan control software installed, just GPU Tweak. Windows was reinstalled to no avail. I have been building PCs since in the early 90's and can generally fix these issues quickly, but this one has me stumped. Yes, I plan is to water block this unit which would make the fan RPM and noise moot but I want to make sure there are no issues with the GPU before doing this. Having a $3,300 GPU come in with a fan issue is a little disheartening to be fair.
PSU is supplying approximately 7.1 - 7.4 amps per pin during a Furmark 1440p benchmark, temp at 78C. Power connector is properly seated. For what it is worth I do have a 1600W power supply I could use but it does not have the voltage monitoring feature the ROG Strix 1200W platinum has and I don't believe this to be a power issue, 1200 watts should be enough based on the loads that I am seeing.
Any help would be greatly appreciated.
1 ACCEPTED SOLUTION
Accepted Solutions
Problem resolved... sort of... hopefully this helps someone else in the future. The ROG Strix 1200W Platinum power supply comes with this cable which is designed by ASUS to go with ASUS GPUs, they even recommend this power supply for their family of 5090 GPUs claiming it helps to manage the power and keep the connector from roasting itself. I do not recommend you use this cable in conjunction with a 5090. Rather use, the severely ugly and cable management nightmare, adapter that ships with the ASUS GPU.
The cable that ships with the GPU takes (4) four 8 pin PCIe cables and combines them into one hideous looking 12VHPWR connector. Common sense would say if ASUS is recommending this PSU and they send a cable designed to plug into an AUS GPU in order to monitor voltage spikes and protect your investment from burning to ground... that it might actually work as intended.. nope.
Right after I got off the phone with customer support I was looking at the box the GPU came in and saw the adapter... "no way they really want you to use this thing"... LOL I rewired the computer in a few moments, as soon as I fired up the PC it was working fine and registering the RPMs as intended and I could now modify the fan curves. So it was a power issue.. just not what I thought it would be.
Problem resolved... sort of... hopefully this helps someone else in the future. The ROG Strix 1200W Platinum power supply comes with this cable which is designed by ASUS to go with ASUS GPUs, they even recommend this power supply for their family of 5090 GPUs claiming it helps to manage the power and keep the connector from roasting itself. I do not recommend you use this cable in conjunction with a 5090. Rather use, the severely ugly and cable management nightmare, adapter that ships with the ASUS GPU.
The cable that ships with the GPU takes (4) four 8 pin PCIe cables and combines them into one hideous looking 12VHPWR connector. Common sense would say if ASUS is recommending this PSU and they send a cable designed to plug into an AUS GPU in order to monitor voltage spikes and protect your investment from burning to ground... that it might actually work as intended.. nope.
Right after I got off the phone with customer support I was looking at the box the GPU came in and saw the adapter... "no way they really want you to use this thing"... LOL I rewired the computer in a few moments, as soon as I fired up the PC it was working fine and registering the RPMs as intended and I could now modify the fan curves. So it was a power issue.. just not what I thought it would be.
