NCR S10XL manual C0000h C7FFFh Video Bios

C0000h - C7FFFh (Video BIOS)

Using the BIOS Setup Utility

Advanced System Configuration

system BIOS to run directly from the cache memory. The system operates faster. When set to Non-cacheable, it lets the system BIOS run from RAM.

If the Video BIOS parameter is set to Enabled, you may select Cacheable or Non-cacheable for the C0000h- C7FFFh parameter. When set to Cacheable, it allows the video BIOS to run directly from the cache memory. The system operates faster. When set to Non-cacheable, it lets the video BIOS run from RAM.

Guaranteed Access

Time (Parity Memory

Only)

Highest Priority Device for PCI Arbitration (Parity Memory Only)

With this parameter set to Enabled, the system guarantees that the ISA 2.1 microseconds CHRDY specification is not violated. This is crucial for some timing-critical expansion boards. Note that enabling this parameter slightly decreases the concurrency of PCI bus and EISA bus.

This parameter allows PCI bus arbitration to decide which master device supported by the bus can own it at a specific time.

There are basically two arbitration modes for PCI bus masters:

∙Fixed – can be CPU or EISA/IO. The CPU and EISA/IO are the two possible highest priority devices. When set to either of these options, and there is more than one device requesting the bus, the master device obtains the bus according to its fixed priorities.

NCR S10XL Hot Plug Server User Guide 4-15