[SOLVED] My PC doesn't want to start with RTX 3090 GUNDAM installed ?

[zionkv]

Hello, everybody!
My PC doesn't want to even start with ASUS RTX 3090 Gundam series. When I put my friend's ZOTAC RXT 3090 - all fine.
Where problem can be? Please, help.

My current config is (clickable):
MB: Pro WS WRX80E-SAGE SE WIFI
CPU: Ryzen Threadripper PRO 3995WX
RAM: G.Skill F4-3600C18D-64GTRS (8x32 GB)
PSU: Corsair AX1600i
Video: 4 x ROG-STRIX-RTX3090-O24G-GUNDAM

Errors that I have:

• Reset, no display cables - QC=AA (no image)
• Cold boot, DP connected - QC=94
• Clear CMOS, DP connected - QC=94
• Cold boot, no GPU power connectors, DP connected - QC=02
• Cold boot, HDMI connected - QC=62

Note:
Before all testing I left only 1 RAM stick, only 1 GPU, no drives, no riser, clear CMOS, latest BIOS, cables and slots reconnected and reseated.
This PSU have 1600W at 12V power channel. MB have extra PCIe power. Current GPU have 3 x 8-pin.
If I put another 3090 by ZOTAC with 2 x 8-pin - all working fine.
All 4 pcs. of ROG-STRIX-RTX3090-O24G-GUNDAM have same effects.
There is no model of my RAM in supported list of MB, but all working fine, just with low frequency and with low power. Current RAM 1.35V, supported RAM 1.2V.

 

[Koekieezz]

Hello, everybody!
My PC doesn't want to even start with ASUS RTX 3090 Gundam series. When I put my friend's ZOTAC RXT 3090 - all fine.
Where problem can be? Please, help.

My current config is (clickable):
MB: Pro WS WRX80E-SAGE SE WIFI
CPU: Ryzen Threadripper PRO 3995WX
RAM: G.Skill F4-3600C18D-64GTRS (8x32 GB)
PSU: Corsair AX1600i
Video: 4 x ROG-STRIX-RTX3090-O24G-GUNDAM

Errors that I have:

• Reset, no display cables - QC=AA (no image)
• Cold boot, DP connected - QC=94
• Clear CMOS, DP connected - QC=94
• Cold boot, no GPU power connectors, DP connected - QC=02
• Cold boot, HDMI connected - QC=62

Note:
Before all testing I left only 1 RAM stick, only 1 GPU, no drives, no riser, clear CMOS, latest BIOS, cables and slots reconnected and reseated.
This PSU have 1600W at 12V power channel. MB have extra PCIe power. Current GPU have 3 x 8-pin.
If I put another 3090 by ZOTAC with 2 x 8-pin - all working fine.
All 4 pcs. of ROG-STRIX-RTX3090-O24G-GUNDAM have same effects.
There is no model of my RAM in supported list of MB, but all working fine, just with low frequency and with low power. Current RAM 1.35V, supported RAM 1.2V.

tried to update the bios to the latest, and try to plug the gpu like this:

 

[tecmo34]

Do you have the additional power cables connected to your MOBO, as noted on page 1-9 of your manual? The board requires more than just your standard 24-pin ATX and 8-pin ATX, specially when running multiple GPU's.

My guess is you might not be getting enough power to be able to handle the GPU, as it has more power draw than the other one.

 

[zionkv]

The problem was with video cards. All 4 was corrupted when colleagues changed air cooling to water. The thermal pads was too thick...
Thank you all for your replies!