Looking for advice on how to go about switching out my 1070 Ti with an old GTS 250 GPU from 2009 to trouble shoot freezes/crashes. Both are Nvidea cards. I've found lots of advice on upgrading GPU's, but nothing on going back (especially this far back). I located the drivers for the GTS 250, but don't know what I need to do to get them working with this PC, or even if I can. Will I need to do anything with BIOS? Do I have to remove my GTX 1070 Ti drivers for this test using DDU? I'll only be running the old card for a few hours to see if it gets rid of the issues my PC is experiencing (freezes/crashes). I don't have integrated graphics anymore apparently (oops), so if I remove the 1070 Ti drivers and the GTS 250 drivers don't work, am I done for?
OS: Windows 10 64 bit
BIOS Updated Feb, 2021
GPU: EVGA GTX 1070 Ti, drivers updated Jan, 2021
MOBO: Tampa2 https://support.hp.com/ca-en/document/c06177288
CPU: i5 8400
RAM: CORSAIR VENGEANCE® LPX 16GB (2 x 8GB) DDR4 DRAM 2400MHz
PSU: Seagate Focus PX-750 (recent upgrade)
OS: Windows 10 64 bit
BIOS Updated Feb, 2021
GPU: EVGA GTX 1070 Ti, drivers updated Jan, 2021
MOBO: Tampa2 https://support.hp.com/ca-en/document/c06177288
CPU: i5 8400
RAM: CORSAIR VENGEANCE® LPX 16GB (2 x 8GB) DDR4 DRAM 2400MHz
PSU: Seagate Focus PX-750 (recent upgrade)