Advanced Chipset Features - Abit GD8 Pro User Manual

BIOS Setup
Report No FDD For OS:
When set to [Yes], this item allows you to run some older operating system without floppy disk drive.
Leave this item to its default setting.
Delay IDE Initial (Secs):
This item allows the BIOS to support some old or special IDE devices by prolonging this delay time. A
larger value will give more delay time to the device for which to initialize and to prepare for activation.
Full Screen LOGO Show:
This item determines to show the full screen logo when booting.
Disable Unused PCI Clock:
This option disables the clock of PCI slot that is not in use.
[Yes]: The system automatically detect the unused DIMM and PCI slots, and stop sending clock signal to
these unused PCI slots.
[No]: The system always send clock signal to all PCI slots.
NOTE: Set this option to [No] setting if there are adapters that cannot be automatically detected by the
system and will cause malfunction.

3-4. Advanced Chipset Features

DRAM Timing Selectable:
This item sets the optimal timings for the following four items, depending on the memory module you are
using. The default setting "By SPD" configures these four items by reading the contents in the SPD
(Serial Presence Detect) device. The EEPROM on the memory module stores critical parameter
information about the module, such as memory type, size, speed, voltage interface, and module banks.
! CAS Latency Time (tCL):
This item controls the latency between the DRAM read command and the time that the data becomes
actually available.
! RAS# to CAS# Delay (tRCD)
This item controls the latency between the DRAM active command and the read/write command.
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User's Manual