Shuttle FS56 User Manual page 61

RAS Precharge Time(tRP)
If an insufficient number of cycles is allowed for the RAS to accumulate its
charge before DRAM refresh, the refresh may be-incompleted, and the
DRAM may fail to retain data. Fast gives faster performance; and Slow
gives more stable performance. This field is applied only when synchro-
nous DRAM is installed in the system.
Ø The Choice: 2T, 3T, 4T or 5T.
RAS to CAS Delay(tRCD)
This field lets you insert a timing delay between the CAS and RAS strobe
signals, and you can use it when DRAM is written to, read from, or re-
freshed. Faster performance is gained in high speed, more stable perfor-
mance, in low speed. This field is applied only when synchronous DRAM
is installed in the system.
Ø The Choice: 2T, 3T, 4T or 5T.
Stage Cntl: CPU Data / P4 Bus / ASL Block / Memory Write /
Memory Read / AGP Block
Ø The Choice: Normal or Aggressive.
APG & P2P Bridge Control
Options are in its sub-menu.
Press <Enter> to enter the sub-menu of detailed options.
AGP Aperture Size
Select the size of Accelerated Graphics Port (AGP) aperture. The aperture
is a portion of the PCI memory address range dedicated to graphics
memory address space. Host cycles that hit the aperture range are for-
warded to the AGP without any translation.
Ø The Choice: 32M, 64M, 128M, 256M or 512M.
Graphic Window WR Combin
This item enable/disable the write combine function for Graphic ad-
dress space.
Ø The Choice: Enabled or Disabled.
AGP Fast Write Support
This item enable/disable the AGP fast write support.
Ø The Choice: Enabled or Disabled.
AGP Data Rate
This item allows the user to adjust AGP data rate.
Ø The Choice: Auto, 1X, 2X, 4X or 8X.
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