On board video 785GM-E65

Question

My onboard video wont work on the m/b.
Newest bios 2.4.
I was using an nvidia 8800gts 320 and now i wanted to pull the card and use the on board and hdmi outputs but I get nothing on the screens , just beeps from the pc,  I tried resetting the cmos and restarting and setting up but the menu in the cmos that should have on board video listed isnt there.  Under Advanced Bios features>(whatever the submenu is called)>  doesn't matter just isnt an option anywhere.  How is this possible?
I have checked all the menus and there is no on board video option and i clearly have on board video, the reason i bought this board
Thanks in advance.

Answer 1

In the BIOS under = Advanced | Chipset Feature do you have these showing?
UMA Location
This item is used to select the location of UMA to avoid over-lapping with the other
data blocks in system memory.
On-chip VGA
This item specifies whether to allocate the memory for onboard VGA from the system
memory or sideport memory. Setting to [UMA], allocates the system share
memory for onboard VGA. Setting to [SIDEPORT], allocates the sideport memory
for onboard VGA. Setting to [UMA+SIDEPORT], allocates both system memory and
sideport memory for onboard VGA.
VGA Share Memory
The system shares memory to the onboard VGA card. This setting controls the exact
memory size shared to the VGA card.
SIDEPORT Memory Frequency
This item allows you to set the SIDEPORT memory frequency (in MHz).
If you do not have the above showing, the BIOS needs to be reflashed. If after reflash you have a no show, you have to Contact Tech Support.