TYAN THUNDER HESL-T, Manual

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3.2-G Chipset
Options related to the graphics interface can be altered through the following.
C000 to DC00 16K
Shadow
Cached (d)
Disabled
Toggles shadowing of
video ROM data into RAM
for faster execution. Option
only for 16bit DOS.
Write Combining for P6-to-
PCI
Enabled (d)
Disabled
Leave as Default .
Act to Deact
5 Clks
6 Clks (d)
Leave as Default .
Act to Read/Write
2 Clks
3 Clks (d)
Leave as Default .
RAS Precharge Time
2 Clks
3 Clks (d)
Leave as Default.
RA Cycle Delay 10 (d) , 9, 8, 7 Clks Leave as Default .
SDRAM CAS Latency
CAS 2.5
CAS 3 (d)
Defines how many memory
refreshes occur before
memory can be written to
or read from.
Memory Auto Precharge
Enabled (d)
Disabled
Leave as Default .
SDRAM Fast Timing
11-1-1-1 (d)
10-1-1-1
Leave as Default .
Memory Write Posting
Enabled (d)
Disabled
Leave as Default .
Fast ECC Enable
Enabled
Disabled (d)
Leave as Default .
ISA IO Cycle Delay
FULL Delay
1.5 BCLK (d)
Leave as Default .
Scrubbing Enable
Enabled
Disabled (d)
Scrubbing is an error
correction feature. If
enabled, POST will take a
few minutes. Leave as
Default .
3.2-H PCIPnP
Options related to the Plug and Play PCI settings interface can be altered through the following.
Plug & Play OS
Yes
No (d)
Toggles the option of
letting the OS take care of
IRQ routing or the BIOS.
Select
Yes to let the OS
manage IRQ settings.
Reset Config Data
Yes
No (d)
Resets BIOS area where
IRQ and DMA settings are
stored.
PCI Latency Timer
32, 64 (d) , 96, 128, 160,
192, 224, 248
Leave on 64 for best
combination of
performance and stability.
Allocate IRQ to PCI VGA
Yes
No Assigns an IRQ to PCI
video card.