Parameter

Description

Options

 

 

 

DRAM RAS# Precharge

This item controls the number of cycles for Row

2T, 3T, 4T

 

Address Strobe (RAS) to be allowed to precharge.

 

 

If insufficient time is allowed for the RAS to

 

 

accumulate its charge before DRAM refresh,

 

 

refresh may be incomplete and DRAM may fail to

 

 

retain data. This item applies only when

 

 

synchronous DRAM is installed in the system.

 

 

 

 

System BIOS Cacheable

Selecting Enabled allows caching of the system

Enabled

 

BIOS ROM at F0000h-FFFFFh, resulting in better

Disabled

 

system performance. However, if any program

 

 

writes to this memory area, a system error may

 

 

result.

 

 

 

 

Video BIOS Cacheable

Selecting Enabled allows caching of the video BIOS

Disabled

 

ROM at C0000h to C7FFFh, resulting in better

Enabled

 

video performance. However, if any program writes

 

 

to this memory area, a system error may result.

 

 

 

 

Memory Hole at 15M-16M

In order to improve performance, certain space in

Disabled

 

memory can be reserved for ISA peripherals. This

Enabled

 

memory must be mapped into the memory space

 

 

below 16MB. When this area is reserved, it cannot

 

 

be cached.

 

 

 

 

Delay Prior to Thermal

When the CPU temperature reaches a factory

4 Min, 8Min, 16 Min, 32 Min

 

preset level, a thermal monitoring mechanism will

 

 

be enabled following the appropriate timing delay

 

 

specified in this field. With the thermal monitoring

 

 

enabled, clock modulation controlled by the

 

 

processor’s internal thermal sensor is also

 

 

activated to keep the processor within allowable

 

 

temperature limit.

 

 

 

 

AGP Aperture Size (MB)

This setting controls just how much system RAM

4, 8, 16, 32, 64, 128 and 256

 

can be allocated to AGP for video purposes. 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

 

 

forwarded to the AGP without any translation.

 

 

 

 

Init Display First

This item specifies which VGA card is your primary

PCI Slot

 

graphics adapter.

Onboard/AGP

 

 

 

On-Chip VGA

This setting determines whether the system RAM

Enabled

 

can be allocated to on-chip video controller for

Disabled

 

video purposes. When setting to Enabled, up to

 

 

128MB system RAM will be allocated to on-chip

 

 

video controller.

 

 

 

 

On-Chip Frame Buffer Size

Frame Buffer is the video memory that stores data

1M, 8M, 16M

 

for video display (frame). This field is used to

 

 

determine the memory size for Frame Buffer.

 

 

Larger frame buffer size increases video

 

 

performance.

 

 

 

 

Boot Display

Use this field to select the type of device you want

Auto, CRT, TV, EFP

 

to use as the display(s) of the system.

 

 

 

 

Chapter 2

36

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Acer Veriton 5600GT/5600V, Veriton 3600GT/3600V, Veriton 7600GTR/7600GT/7600V manual Disabled, Onboard/AGP