IBM 2193 Maintenance Service Manual page 56

Ultra DMA (Direct Memory Access)
This setting allows you to speed up data transfer between the
IDE devices and your system. Select the Auto option to enable
it or select disabled to disable it.
IDE Brust Mode
Determines the acceleration of data transfer for IDE devices.
IDE Data Port Post write
Determines the data transfer in the manner of "post write"
feature.
IDE HDD Block Mode
Determines the automatic detection of the optimal number of
block.
Video Setup
Select this menu item to modify the video settings.
System Shared Memory Size
Determines whether 2MB, 4MB, 8MB, 16MB, 32MB, or 64MB of
system memory is to be used by video.
Init Display First
Specify which video subsystem to initialize first.
PS/2 Mouse Detect Function
Determines whether the power-on self test will check to see if a
mouse is acctached to the mouse connector.
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