Windows 7: Graphics card died; can't get video on new one.

I'm lacking a little bit in the information department; but I'll try my best to convey my issue.

My brother has a pre-built HP Elite e9150t, and we've undergone some minor upgrades over they years. Recently we did a 3-part upgrade (SSD/700W power supply replacement/added ram). While in the process of figuring out a place to fit the SSD in addition to the two installed hard drives in such a tiny case, it seems like the graphics card stopped working.

I replaced the GFX card recently with a new one, and while it appears to work to some extent (the fan on it spins; the fan on the old one did not spin), I cannot get any kind of screen to show up.

The issue I'm facing is that my mother board does not have onboard graphics (Truckee IPMTB-TK), so I have no way of checking the BIOS or uninstalling drivers from the previous card.

I'm hoping there is a way to circumvent my issue so that I may be able to get the tower running without investing in a whole new MOBO and Windows install.

Thanks in advance for any assistance.

I'll post details as I can:
Tower: HP Elite e9150t
MOBO: Truckee IPMTB-TK
GFX Card #1 ( original card): Radeon (HD4350, I believe)
GFX Card #2 (replacement card): PNY GeForce 210

Hi,

So, just to clarify, both cards do not display at all?

If so, it suggests a problem with the slot they are installed in. Can you check to see that there isn't any excess dirt/fluff/dust in the slot, and then reinsert the replacment to ensure that it is seated properly?

Regards,
Golden

Correct: neither card will display. The fan on the original card will not spin, but the fan on the new one does. That's what lead me believe the old one was defective.

I've checked for dust and can find nothing. I've also tried seating each of the graphics cards in both slots; also no luck.

Along with Golden excellent advice....to verify both GPU's are bad...install the GPU's on another PC just to confirm. It could be some as simple as the card is not fully seated or properly seated and the power connections whether 4, 6 or 8 pin are not connected or fully seated.

Edit:
So I figure it out on my own. Turned out one of the jumper for the "ROM RECOVERY" fell off somehow (probably when I was plugging in my new power supply), and it was causing whatever the lack of functionality in my graphics card.

Both cards are tested and work; the fan on the first card doesn't spin until Windows starts apparently, but it's functional.

This was a real ball buster, so I hope this helps someone out. I can't tell you how long I spent reseating virtually every component on that horrible mid-tower.