Specifications

Little Board/P5i Technical Manual
3–10
3.6 SETUP 4—CHIPSET FEATURES SETUP
SETUP 4—Chipset Features SETUP controls internal chipset features and certain peripheral SETUP
functions. Many of these items should never be changed by the OEM or end user, as they specify internal
parameters that have been chosen to support the existing motherboard design. Change them only if
directed to by Ampro technical support. Figure 3–4 shows what can be configured on SETUP 4. The
items that can be changed by the OEM are listed below.
CHIPSET FEATURES SETUP
Ampro Computers, Inc.
Auto Configuration : Enabled IDE Primary Master PIO : Auto
AT Bus Clock : CLK2/8 IDE Primary Slave PIO : Auto
DRAM Access Timing : Normal IDE Secondary Master PIO : Auto
DRAM Posted Buffer Timing : Normal IDE Secondary Slave PIO : Auto
SRAM Read Timing : 1-Wait
SRAM Write Timing : 1-Wait
DRAM Parity : Disabled Onboard FDC Controller :Enabled
Hidden Refresh : Disabled Onboard Serial Port 1 :COM1/3F8
Slow Refresh : 15 us Onboard Serial Port 2 :COM2/2F8
16 Bit ISA I/O Command WS : 2 Wait Onboard Serial Port 3 :COM3/3E8
16 Bit ISA Mem Command WS : 2 Wait Onboard Serial Port 4 :COM4/2E8
Local Memory 15-16M : Enabled Onboard Parallel Port :378/IRQ7
CPU Pipelined Function : Disabled Parallel Port Mode :Normal
On-Chip IDE Controller : Enabled
IDE Buffer for DOS & Win : Enabled ESC:Quit: ↑ ↓ → ← : Select Item
The 2nd Channel IDE : Disabled F1 :Help PU/PD/+/- : Modify
IDE HDD Block Mode : Enabled F5 :Old Values (Shift)F2:Color
F6 :Load BIOS Defaults
F7 :Load Setup Defaults
Figure 3–4 SETUP 4—Chipset Features SETUP
This SETUP screen allows you to configure the following parameters:
• Auto Configuration—controls the configuration of AT Bus Clock, DRAM, and SRAM timing.
Always leave this option enabled. If parameters have been changed, setting this option to Enabled
returns the values of parameters on this page to their default states.
• DRAM Parity—the default state for DRAM Parity is Disabled. To enable DRAM parity checking,
enable this option and enable System NMI on the BIOS Features SETUP screen, SETUP 3.
• On-Chip IDE Controller—enables or disables the onboard primary IDE controller. Default is
Enabled. Disable if you will not be using IDE devices or if you add an external IDE controller.
• The 2
nd
Channel IDE—enables or disables the secondary IDE controller. Default is Disabled.
Enable if you attach IDE devices to the secondary IDE controller.
• IDE HDD Block Mode—when enabled, this allows your hard drive system to use a mode where the
interface transfers large blocks of data instead of the normal small blocks. Enabled is the default
state.