installing amd Radeon RX550? problem

[pbright220]

When I install the card and try to boot on computer it says "No VGA cable connected" on my screen and nothing else. Tried downloading driver but don't think it took and other videos I've watched shows others computers booting up normal with card installed. I have a Dell Optiplex 7010 with 2 T's and 16gigs ram. any help? Trying online but finding little help on what to do.

[Illusion of Progress]

When is this lack of video signal occurring? Do you ever get video signal in the BIOS and does it drop signal loading into Windows, or do you never get video signal to begin with?

Obvious things first, ensure the monitor cable is connected to the video card and not the onboard video source. "VGA cable" is an older standard and many modern video cards don't even have VGA anymore (some low profile/lower end ones do, though). Ensure the monitor is set to to the appropriate input mode that matches whatever input source you are using.

If the obvious stuff is correct...

If you're not getting a video signal in the BIOS it has nothing to do with drivers. If it cuts out when loading Windows, it could be the drivers. If it's the latter, does it show a signal fine when booting in Windows safe mode?

Is the BIOS the most updated version?

Some of those older PCs have a video setting for the video priority and sometimes, despite a couple of the settings being worded as though they should be the same in some situations, can have an effect in some hardware configurations.

[Rumpelcrutchskin]

Make sure the monitor cable is connected to the RX 550 and card itself is seated properly in the slot.

It`s originally sold without GPU with only CPU integrated graphics. Not sure if it actually has good enough power supply to take additional 60W from RX 550.

[Zef]

Wait.. a dell optiplex?

Does that thing even have enough power for a discrete GPU?

[Illusion of Progress]

Zef lähetti viestin:

Wait.. a dell optiplex?

Does that thing even have enough power for a discrete GPU?

Low power draw ones, sure. That GPU seems to need ~50W which the PCI Express slot alone can provide (I believe some OEM models they may actually restrict the wattage the slot can provide to lower than this, like sometimes 25W, though?).

I've used both ~50W (GT 430) and ~30W (GT 1030) GPUs in my older OptiPlex (380) than OP has and it only has a 235W PSU from memory. Also has a 95W Core 2 Quad in it.

The 250W one back in my old OptiPlex GX 270 (one of the ones infamous from the bad capacitor era) even ran a Prescott Pentium 4, a GeForce 6800 GS AGP, all RAM slots, and a couple of hard drives with a pair of other expansion cards (sound and network) without issue for close to a year.

A lot of people think stock PSUs in OEMs are worse than they are. They're not highly rated and they're not "high end" in enthusiast terms, no, but that doesn't make them completely incapable either. OEMs usually do put "good enough" PSUs in that will handle having reasonable expansions added to them. They're not going to blow up if you try and actually do what is allowed and add something to an expansion slot.

[GOD RAYS ON ULTRA™]

Does the GPU say it's compatible with CSM? Some GPU have to be compatible with 'compatibilty support module' or CSM. I'm not familiar with Rx 550 but if it's only UEFI compliant then that might be why.

[GOD RAYS ON ULTRA™]

If this is the case you could try updating bios for compatible options to appear. Also make sure you plugged your display into the Rx 550 and not the same VGA port as before.

A simple CMOS reset may also work.

*Edit*

Okay, after researching your Rx 550 it looks like it's only UEFI. It does not have CSM. So you may have to set up the bios for uefi boot. These options may not be there unless the bios is updated.

[pbright220]

OK, thanks for all the replys. Illusions of Progress and Rumplecrutchskin was the closest to the answer. Yes I called a computer shop who told me I needed a dvi cable from monitor to my Radeon . twenty bucks and it works great now. Which brings up a bigger problem.
When I opened RROL and it loaded I noticed alot of changes since it's been awhile since I've played. I have 257.5 hours into my railroad. The graphics and all are like wow! But it looks like someone got into my game and totally ruined it. Tracks are laid all over the place and Groundwork and one train was derailed where it had been staged. What a mess!!! Plus i don't know how to find my saved game from before or start over? Any ideas guys would be greatly appreciated. Thanks for all your inputs, nice to know I can count on the community to help.
Sincerely Phil B.

[Illusion of Progress]

Glad to hear it's working, and that it was a simple issue!

As for the game, I'm afraid I can't help there. That sounds unusual that a saved game would be effected. If it is a Steam game, you might be best asking that in the game's own community hub. I tried searching "railroad" and found nothing matching "RROL", but if this stands for "online" then what you're describing makes sense as the instance of it might be active even when you're not playing? Just a guess.