Question Replaced graphics card - now PC won't boot

[John Biddle]

Greatgrandson got an XFX AMD Radeon RX 580 from a friend who got something better. I replaced the Nvidia Model P2130 video card and the system wouldn't boot. No beeps, no hard drive spin up noises, no output to video at all not even BIOS. CPU fan and video card fan both spin.

I put the original Nvidia card back in and now get same result. I tried using VGA connection to the Nvidia as well as digital with known good cables, no luck.

PC has a Micro ATX LGA 1155 motherboard (can't see a brand name) with a Rosewell RG700-512 power supply which I thought would be enough but maybe not? Have I fried something? PC won't even boot up with no video card at all, just using the built in VGA. Any ideas?

https://www.xfxforce.com/gpus/amd-radeon-tm-rx-580-gts-xxx-edition-4gb-3​

 

[rgd1101]

recheck all the power connection?

 

[John Biddle]

yes, all connections are tight.

 

[Unolocogringo]

Try a bios reset.
If secure boot is enabled, changing the video card will cause bios/windows not to boot if a part has been changed.
Hard bios reset.
Turn off.
Remove power plug.
Press power button a few times to drain power supply capacitors .
Remove bios battery.
Press power button a few more times.
Short CLEAR CMOS jumpers,pads,button for 10-30 seconds.
Remove jumper if used.
Replace battery and install new video card. Make sure power is attached to video card.
install power cord and boot.
Spam DELETE or F2 key to enter bios on boot.
Reset Date, Time, memory speed etc.... if needed.
Now reboot and let it boot to windows.

 

[John Biddle]

I don't know if secure boot is enabled, but if it isn't the default then it wouldn't likely have been set.

Just making sure: the hard BIOS reset you recommend is the removal of the BIOS battery?

I only see one battery on the motherboard and am assuming (always a risk) that it's the Bios battery?

Removing the power plus is removing the power cable, not the main power supply cable to the motherboard?

Have no idea which of many jumpers on the motherboard the CMOS jumper would be.

How do I "Make sure power is attached to the video card"? No cable attaches to video card, except the one to the monitor. It get all power from motherboard connection.

"Reset memory speed if needed" I have no idea what it should be set at, nor if there are other BIOS settings like this am I likely to know them either. Time and data and boot order, etc. I can manage.

Thanks

 

[stonecarver]

No cable attaches to video card, except the one to the monitor

The power needs to be plugged into card kind of hidden under heat pipe on the RX 580


https://www.pcmag.com/reviews/xfx-radeon-rx-580-gts-xxx-edition

Go down the page and you will see the power hookup in a pic.

 

[Unolocogringo]

Removing the power cable means the one from the wall.
We want drain all of the backup power the power supply has.
Leave all cables attached inside the computer.
Only one battery on motherboard. Make suru to replace it correctly.
Some power supplies have 5v and 3v on the same secondary circuit.
A lot of power supplies have 5v available for charging the usb ports when computer is off.
So you would have 5v and 3.3v available if power supply was connected to wall, or not pressing the power button several times to drain the power supply capacitors.
So we want to remove all power from the system.

 

[Unolocogringo]

As far as bios, most OEM boards have very limited bios options, as you go futher up the price stack you get lots more bios options for retail boards.
From no memory control to full first/second/third level timings, and full voltage and overdrive/overclocking controls. (geek options!!!)

 

[Unolocogringo]

If you look at the top left of the card in this picture , the notch is where the power connector is.

 

[John Biddle]

OK, thanks for all the help so far. I get the power drain idea and the power cable to the wall socket has been out this whole time. Always do thst whenever I open a case.

I now see the power connector on the card, had no idea there were such things but I guess this thing draws so much power (like a hard drive) it makes sense to have an independent connection. Anyway, mine has 8 pins in 2 connected rows of 4. After digging out the hidden power supply cables I found one labled PCI Express Graphics 8P Connector that has one part with 6 (2x3) holes and 1 that has 2. I can put them together and they fit with all notches aligning so I'm assuming that that's how this is supposed to work and could work with cards with a 6 pin or an 8 pin. Is that correct. If so it's all logical and I'm just way behind the times on modern hardware.

 

[stonecarver]

Yes the PCI-E cable from power supply to your RX 580 is 6+2 so yes meaning if you have a 6 pin GPU you would leave the + 2 just hanging.

But yes if you have a 8 pin GPU, yup you line the +2 up with the 6 and it becomes the 8 pin your card needs.😉

 

[John Biddle]

Been busy so this is a little delayed.

With the power cable out of the PC:
I installed the card and got its power cable connected. (what a pain)

Did a hard bios reset.
Pressed power button a few times to drain power supply capacitors .
Removed bios battery.
Press power button a few more times.
Found CLR CMOS jumpers (surprised they were on opposite side of MB from battery)
Shorted CLEAR CMOS jumpers with a screwdriver for 30 seconds (no jumper)
Replace battery
Connected DVI cable to monitor and video card
Installed power cord and booted.

No Sound, no video of any kind

Just realized that I did the reset with video card installed. Could that somehow be a problem?