Question Rtx 3080 install - no HDMI signal

[RustInPeace5150]

Hey all,

hoping someone can help me. I just got an MSI Trio RTX 3800 to replace my RTX 2700.

I have an Intel i7 9700, 512 GB hard drive, 2 TB SSD, 16 GB ram, ASROCK Z930 motherboard, and a ThermalTake 600w 80 plus gold power supply. I've recently bought an 850 watt power supply, but it's still on the way.

I know my power 600w supply is an issue... I got my 3800 today and installed just to make sure it worked. My power supply has two 8 pin power connectors, but they're daisy chained.

Even so, the PC and card appear to turn on just fine. RGB lights up and fans turn on. I am getting zero input signal through my HDMI cable. Just a blank screen. I've tried it on my gaming monitor and my 4k LG tv. No luck. I made sure it was seated correctly and everything. Reinstalled my 2070 and it works just fine.

Is the power supply the likely culprit? I don't want to buy a new supply just to find out the hard way that it's a bad card

Any input would be appreciated

 

[mainer]

I don't know if I can be much help, but it does seem to me that your PSU is a bit on the low side. Isn't the recommended PSU a 750w? I just got an EVGA RTX 3080 in November and connected it via display port to my monitor, PSU is 1000w (over kill) and 2 separate 8 pin connectors and it works fine. Do you have a display port connection to your monitor?

I assume that you've emailed or called MSI tech support? They could probably sort your issue out the quickest.

 

[RustInPeace5150]

Reaching out to them today. Thanks for the reply. Yes, the recommended PSU is 750w. I've got an 850w coming today. Im just concerned as I wouldn't expect the GPU fans and lights to work of the power supply was that under powered. I'll see if this new PSU changes anything