It's dead, Jim. The 9600GT was a really well-balanced card overall, and I understand your hesitance to let it go. I replaced mine with a GTX 660 last year, but it had been in service for close to five years.
And what a surprise to see someone mention a Voodoo Banshee in a positive light. Mine was a Quantum3D Raven I snagged for a couple of bucks, and I kept that running in various Frankenputers for years. Its 2D was still so good that I kept it running connected to a second monitor in an XP box for a couple of years longer...
Workstation: Ryzen 1700, 16 gigs RAM, GTX 1050 Ti, Win10 Pro x64
HTPC: i3 4170, 8 gigs RAM, Geforce GTX 750 Ti, Windows 8.1 x64
Mac Pro 3,1: Dual Xeon e5462s, 14 gigs RAM, Radeon 2600XT, El Capitan