I have a question in the same vein. I recently bought a dv8000t with 1GB system memory and the Geforce Go7400/128MB. When I check with various benchmark and utility programs, it's showing 512MB video memory. Now, I realize that it's probably sharing, but I don't have any options with managing the sharing allocation. I'd like to reduce or even turn off the sharing and just run with the dedicated, but I have no option in the BIOS or in the nvidia settings.
I talked to HP support a few times and have been told various things, ranging from:
1) I have 512 MB dedicated video memory, supported by the fact that when viewing System Properties from My Comp it shows all of my system ram (1GB), whereas if there was memory shared it the system ram would be reduced by the shared amount (true??) to
2) I need an "expansion card" in the expansion slot in order to have dedicated video memory, without it all of the memory is shared.
I know #2 can't be right, but I wonder about #1.
To add confusion, some of the info showing in the benchmark seems very strange like:
the bus width = 256-bit (can't be right)
the 2D core and memory frequencies are lower than the 3D core/mem freqs
total vid mem shows 512M, texture mem ~369M
Can anybody explain this, at least better than the HP "support"?
for the record:
I'm using PC Wizard 2006 v1.68
3DMark05 score ~ 2000
HP Pavilion dv8000t CTO NB
XP Home SP2
CoreDuo processor T2400 (1.83 GHz)
17.0" WXGA+ BrightView (1440x900)
128MB NVIDIA(R) GeForce(R) Go 7400
1.0GB DDR2 SDRAM (2x512MB)
80 GB 5400 RPM SATA Hard Drive
DVD/CD-RW Combo Drive
Intel PRO/Wireless 3945ABG Network w/Bluetooth