C2SBM-Q User's Manual Cache Extended Memory If enabled, this feature will allow the data stored in the extended memory area to be cached (written) into a buffer, a storage area in the Static DROM (SDROM) or written into L1, L2, L3 cache inside the CPU to speed up CPU operations. Select Uncached to disable this function. Select Write Through to allow data to be cached into the buffer and written into the system memory at the same time. Select Write Protect to prevent data from being written into the extended memory area above 1 MB.
Select Write Back to allow the CPU to write data back directly from the buffer without writing data to the System Memory for fast CPU data processing and operation. The options are Uncached, Write Through, Write Protect, and Write Back . PNP Configuration Access the submenu to make changes to the following settings for PNP (Play & Plug) devices. PCI 32 Device Slot#4 - PCI Device Slot#6 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 benefit from a greater clock rate. The options are Default , 0020h, 0040h, 0060h, 0080h, 00A0h, 00C0h, and 00E0h. For Unix, Novelle 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 . PCI-E x4 Slot 5 Access the submenu for each of the settings above to make changes to the following: PCI Express Port#1 Select Enabled to always enable PCI-Ex1 Port#1.
Select Disabled to disable PCI-Ex1 Port#1 and all other PCI-E ports. When set to Auto, PCI-Ex1 Port#1 will be enabled if a PCI add-on card is detected. The options are Auto , Enabled and Disabled. 4-14