NCR 7455, Hardware User'S Manual

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1-18 Chapter 1: Product Overview
Because a hole in memory creates a non-contiguous address space,
enabling linear addressing when total system DRAM is greater than
64 MB is not recommended. Video linear addressing is enabled
through PC Setup under the Integrated Peripherals menu.
The processor also supports VESA standards such as the VESA DPMS
protocol to place a DPMS compliant monitor into power savings
modes.
Resolutions Supported
Resolution Colors Max Vfreq
800x600x8bpp 256 85 Hz
800x600x16bpp 64 K 85 Hz
800x600x24bpp 16 M 85 Hz
Colors Supported
Resolution 256 Colors
(8-Bit) 65,000 Colors
(16-Bit) 16.7 M Colors
(24-Bit)
800x600 512 K 1 MB 2 MB
Board BIOS
The Processor Board uses a Phoenix BIOS, which is stored in Flash
ROM and easily upgraded through the network connection or serial
port. The Flash EEPROM also contains the Setup utility, Power-On Self
Tests (POST), and APM 1.2. The board also supports system BIOS
shadowing, allowing the BIOS to execute from on-board write-
protected DRAM.
The BIOS displays a sign-on message during POST, identifying the
type of BIOS and a five-digit revision code.