I need help for a friend of mine. As soon as I recommended something (the second RX 7700), it became my duty to have an answer for this:
It is a repost, as the first went to the Processors community.
# First scenario
- AsRock RX 7700
- 5700X3D
- B450M PRO-VDH MAX
- Corsair 550W PSU
## Considerations
- All items were chosen without my review
-- Despite all the tips
## Result
- No video
- GPU fans don't even start
- GPU Leds don't even start
- Old GPU works (simple card, yet-another-GT210-rebranding-or-refresh)
- Only a single HDMI out to test
- GPU returned
- PSU returned
- PSU came with a single default PCI-E standard cable, splitted onto 2 6+2pin.
-- Thus, the card relied on a single cable
# Second scenario
- Sapphire Pulse RX 7700
- 5700X3D
- B450M PRO-VDH MAX
- XPG Kyber 750W
## Considerations
- He bought the Sapphire one after me helping him after checking lots of reviews and PCB design.
-- Yup, it was supposed to be good
-- Only ASUS TUF would be a better choice
--- too expensive
- He bought the XPG Kyber after being sold to the marketing
-- I'd have never recommended it
## Result
- No video
- GPU fan turns on
- GPU led turns on
- Old GPU works (simple card, yet-another-GT210-rebranding-or-refresh)
- PSU came with a single default PCI-E standard cable, splitted onto 2 6+2pin.
-- Thus, the card relies on a single cable
- PSU came with 2 PCI-E 5.0 crap cables, with a "600W" label, despite the fact that such low qual
ity PSU would never support both cables at the same time.
-- According to some specialized tests, not even a single would be 100% sure.
-- yes, I find it bad, as we're downgrading in terms of conspumption specs, the solution from nvidia have been just printing a bigger chip regardless of ATX standards.
--- whatever, I already know some of you will disagree, and I just don't want to discuss it. Let's just stick to the main point.
# Already tried
- turning on and letting the 5700X3D compute a **possible** memory training
-- IDK, some chips of 5000 series are having a very slow boot time
- Removed CMOS battery
- Updated BIOS/UEFI to the latest
- UEFI boot only
- No HD connected boot
- **Connected the latest PSU and GPU with the old PC**
-- No video, same issue
# So
- What's the chance of 2 RX 7700 being faulty?
-- Different brands.
-- Different PCB designs.
--- At least were supposed to.
- Anything else that you could help me with?
- Incompatibilities with B450M?
- Incompatibilities with the PSU?
To be honest, he is already saying " _no way, I'm sticking with nvidia, amd is b\*\*\*s\*\*t_ ". I wouldn't be surprised if he replaced the CPU as well as the GPU.
WHAT ARE YOU DOING AMD? It should be just "plug and play".
