SUPER MICRO Computer X7DGU Option ROM Scan, Enable Master, Latency Timer, Large Disk Access Mode

X7DBU/X7DGU User's Manual

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 benefit 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. An incorrect setting, a very high DRAM frequency or an incorrect DRAM timing may cause the system to become unstable. When this occurs, reset the setting to the default setting.

SERR Signal Condition

This setting specifies the ECC Error conditions that an SERR# is to be asserted. The options are None, Single Bit, Multiple Bit, and Both.

J5 Slot Link Width

Use this feature to configure Link Width settings for the devices connected to PCI-E Slot J5. After changing the Link Width setting, please reboot the system for the new Link Width setting to take effect. The options are One (Connection) in x 16 and Two in x 8.

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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