Previously I was running a 8800gt 512mb card on a windows 7 32-bit machine with 4 gigs of ram. My understanding of the win 7 32-bit architecture was it only supports 4 gigs of ram and ram available was total - video memory = total usable. Hence, 4 gigs - 512mb video ram = 3.5 usable in system information.
However I just upgraded to a 5770 Radeon with 1 gig vram. After I installed it, windows system information still says I have 3.5 usable with 4 g installed. This is nice, I'm saving 512 mb of ram, but shouldn't I only have 3.0 g? I thought maybe win 7 was not reading my new video card right but all drivers were installed. I even pulled out my memory and booted with 2 g ram to reset the mobo, but still it reads 3.5 after installing all 4 g.
I can't help but think something is wrong or maybe my computer is only utilizing 512mb of the 1024mb radeon. Anybody have any experience with this?
Specs:
Intel Q9550
Gigabyte 965P-DS3 Rev 1.3
2 X 2g G.Skill DDR2 800 (4g total)
XFX Radeon 5770 1024mb vram
Windows 7 32-bit
However I just upgraded to a 5770 Radeon with 1 gig vram. After I installed it, windows system information still says I have 3.5 usable with 4 g installed. This is nice, I'm saving 512 mb of ram, but shouldn't I only have 3.0 g? I thought maybe win 7 was not reading my new video card right but all drivers were installed. I even pulled out my memory and booted with 2 g ram to reset the mobo, but still it reads 3.5 after installing all 4 g.
I can't help but think something is wrong or maybe my computer is only utilizing 512mb of the 1024mb radeon. Anybody have any experience with this?
Specs:
Intel Q9550
Gigabyte 965P-DS3 Rev 1.3
2 X 2g G.Skill DDR2 800 (4g total)
XFX Radeon 5770 1024mb vram
Windows 7 32-bit