Tyan Computer GX21 - Manual (Page 76)

68
Active to Precharge Delay
This setting is the number of clock cycles needed after a bank
active command before a precharge can occur. The possible
values are:
8 / 7 / 6 / 5
DRAM RAS# to CAS# Delay
This setting is the number of cycles from when a bank acti-
vate command is issued until a read or write command is
accepted, that is, before the CAS becomes active. The possi-
ble values are:
4 / 3 / 2
DRAM RAS# Precharge
This setting is the number of cycles needed to return data to
its original location to close the bank or number of cycles to
page memory before the next bank activate command can be
issued. The possible values are:
4 / 3 / 2
System BIOS Cacheable
Enabling this option will cause the BIOS code from ROM to
be copied on to the much faster RAM at location F0000h-
FFFFFh, thus increasing system performance. However, if
any program writes to this memory area, a system error may
result. The choices are:
Disabled / Enabled
VIDEO BIOS Cacheable
Enabling this option will cause the VIDEO BIOS code from
the video adapter’s ROM to be copied on to the much faster
RAM, thus increasing system performance. However, if any
program writes to this memory area, a system error may
result. The choices are:
Disabled / Enabled