Penguin Computing Relion 1900e, Technical Manual

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Revision 1.0 46
Relion 1900e/2900e Manual
The integrated video controller supports all standard IBM* VGA modes. The following table shows the 2D
modes supported for both CRT and LCD:
Table 15. Video Modes
2D Mode 2D Video Mode Support
8
bpp
16
bpp
24
bpp
32
bpp
640x480 X X X X
800x600 X X X X
1024x768 X X X X
1152x864 X X X X
1280x1024 X X X X
1600x1200** X X
** Video resolutions at 1600x1200 and higher are only supported through the external video connector
located on the rear I/O section of the server board. Utilizing the optional front panel video connector may
result in lower video resolutions.
The server board provides two onboard video interfaces. The primary video interface is accessed using a
standard 15-pin VGA connector found on the back edge of the server board. In addition, video signals are
routed to a 14-pin header labeled “FP_Video”, allowing for the option of cabling to a front panel video
connector. Attaching a monitor to the front panel video connector will disable the primary external video
connector on the back edge of the board.
5.8.1 Dual Video and Add-In Video Adapters
There are enable/disable options in the <F2> BIOS Setup PCI Configuration screen for “Add-in Video
Adapter” and “Onboard Video”.
• When Onboard Video is Enabled , and Add-in Video Adapter is also Enabled , then both video displays
can be active. The onboard video is still the primary console and active during BIOS POST; the add-in
video adapter would be active under an OS environment with the video driver support.
• When Onboard Video is Enabled , and Add-in Video Adapter is Disabled , then only the onboard video
would be active.
•
When Onboard Video is Disabled , and Add-in Video Adapter is Enabled , then only the add-in video
adapter would be active.
Configurations with add-in video cards can get more complicated on server boards that have two or more
CPU sockets. Some multi-socket boards have PCIe* slots capable of hosting an add-in video card which are
attached to the IIOs of CPU sockets other than CPU Socket 1. However, only one CPU Socket can be
designated as “Legacy VGA Socket” as required in POST.
To provide for this, there is another PCI Configuration option to control “Legacy VGA Socket”. The rules for
this are:
• This option appears only on boards which have the possibility of an add-in video adapter in a PCIe*
slot on a CPU socket other than socket 1.
•
When present, the option is grayed out and unavailable unless an add-in video card is actually
installed in a PCIe* slot connected to the other socket.
•
Because the Onboard Video is “hardwired” to CPU Socket 1, whenever Legacy VGA Socket is set to a
CPU Socket other than Socket 1, that disables both Onboard Video ports.