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SUPER MICRO Computer SUPER X7DB8 User Manual

Page 69

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Chapter 4: BIOS

4-11

Slot1 PCI-X 100 MHz ZCR, Slot2 PCI-X 133MHz, Slot3 PCI-X

133MHz, Slot4 PCI-Exp x4, Slot5 PCI-Exp x8, and Slot6 PCI-Exp x8

Access the submenu for each of the settings above to make changes to the

following:

Option ROM Scan

When enabled, this setting will initialize the device expansion ROM. The options

are Enabled and Disabled.

Enable Master

This setting allows you to enable the selected device as the PCI bus master.

The options are Enabled and Disabled.

Latency Timer

This setting allows you to set the clock rate for Bus Master. A high-priority, high-

throughout device may benefi t from a greater clock rate. The options are Default,

0020h, 0040h, 0060h, 0080h, 00A0h, 00C0h, and 00E0h. For Unix, Novell and

other Operating Systems, please select the option: other. If a drive fails after

the installation of a new software, you might want to change this setting and

try again. A different OS requires a different Bus Master clock rate.

Large Disk Access Mode

This setting determines how large hard drives are to be accessed. The options are

DOS or Other (for Unix, Novelle NetWare and other operating systems).

Advanced Chipset Control

Access the submenu to make changes to the following settings.

*Warning

: Take Caution when changing the Advanced settings. Incorrect

values entered may cause system malfunction. Also, a very high DRAM

frequency or incorrect DRAM timing may cause system instability. When this

occurs, revert to the default setting.

SERR Signal Condition

This setting specifi es the ECC Error conditions that an SERR# is to be asserted.

The options are None, Single Bit, Multiple Bit, and Both.

4GB PCI Hole Granularity

This feature allows you to select the granularity of PCI hole for PCI slots. If MTRRs

are not enough, this option may be used to reduce MTRR occupation. The options

are: 256 MB, 512 MB, 1GB and 2GB.

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