INTEL PHASE III BIOS CMOS USAGE GUIDE
PRODUCT: ALADDIN LAJOLLA (BR0T)
VERSION: 1.00.07.BR0T
DATE: 03/20/95
PVCS$Date: 20 Mar 1996 10:27:56 $
$Revision: 1.6 $
Information in this document is subject to change without notice and does
not represent a commitment on the part of Intel Corporation.
Copyright 1993-1995, Intel Corporation. All rights reserved.
Intel Corporation
5200 NE Elam Young Parkway
Hillsboro, OR 97124-6497
DEFAULTS
--------------------
BYTE DESCRIPTION [BIOS] {MFG} CUST
---- ----------- ------ ----- ----
10 Floppy Information [40] {44}
Bit 7-4 Floppy Drive A Type 0100y 0100y YES
Bit 3-0 Floppy Drive B Type 0000y 0100y YES
0000 = Not Installed
0001 = 360KB 5.25"
0010 = 1.2MB 5.25"
0011 = 720KB 3.5"
0100 = 1.44MB 3.5"
0101 = Reserved for Future Use
0110 = 2.88MB 3.5"
0111-1111 Reserved for Future Use
11 Runtime Information [91] {91}
Bit 7 Global Cache Enable 1y 1y YES
Bit 6 Network Password Enabled 0y 0y YES
Bit 5 Secure Boot option disabled 0y 0y NO
Bit 4 Setup Message Displayed During POST 1y 1y YES
Bit 3 Num-Lock Enabled at Boot 0y 0y YES
Bit 2 User flash Enable 0y 0y NO
Bit 1 Reserved 0y 0y NO
Bit 0 Boot-Up Speed 1y 1y YES
12 Hard Drive [POST] {POST}
Bit 7-4 Hard Drive C Type POST POST NO
Bit 3-0 Hard Drive D Type POST POST NO
13 Miscellaneous [00] {00}
Bit 7 Typematic Rate Programming Enable 0y 0y YES
Bit 6-5 Typematic Rate Delay (msec) 00y 00y YES
Bit 4-2 Typematic Rate (chars/sec) 000y 000y YES
Bit 1-0 These Bits Need to be 00 POST POST NO
14 Equipment Byte [POST] [POST]
Bit 7-6 Number of Floppy Drives POST POST NO
Bit 5-4 Display Type POST POST NO
Bit 3 Display Installed POST POST NO
Bit 2 Keyboard Installed POST POST NO
Bit 1 Co-Processor Installed POST POST NO
Bit 0 Floppy Installed POST POST NO
15 Base Memory Low Byte/KB [POST] {POST} NO
16 Base Memory High Byte/KB [POST] {POST} NO
17 Extended Memory (IBM Compat) Low Byte/KB [POST] {POST} NO
18 Extended Memory (IBM Compat) High Byte/KB [POST] {POST} NO
19 Hard Drive [22] {62}
Bit 7-6 Hard Drive C Auto/Man/Dis 00y 01y YES
Bit 5-4 Hard Drive D Auto/Man/Dis 10y 10y YES
Bit 3-2 Hard Drive E Auto/Man/Dis 00y 00y YES
Bit 1-0 Hard Drive F Auto/Man/Dis 10y 10y YES
00 = Auto Detected
01 = User Definable
10 = Disabled
11 = Reserved
1A Boot Options [12] {20}
Bit 7 Reserved 0y 0y NO
Bit 6-4 Second Boot Device 001y 010y YES
000 = Disabled
001 = Floppy
010 = Hard Disk
011 = Reserved
100 = CD-ROM
101 = Network
000 = Reserved
000 = Reserved
Bit 3 Reserved 0y 0y NO
Bit 2-0 Third Boot Device 010y 000y YES
000 = Disabled
001 = Floppy
010 = Hard Disk
011 = Reserved
100 = CD-ROM
101 = Network
000 = Reserved
000 = Reserved
1B Hard Drive [FF] {FF}
Bit 7-6 Hard Drive C Multiple Sector Setting 11y 11y YES
Bit 5-4 Hard Drive D Multiple Sector Setting 11y 11y YES
Bit 3-2 Hard Drive E Multiple Sector Setting 11y 11y YES
Bit 1-0 Hard Drive F Multiple Sector Setting 11y 11y YES
00 = Disabled
01 = 8 Sectors/Block
10 = 16 Sectors/Block
11 = Auto-Configured
1C Hard Drive [FF] {FF}
Bit 7 Hard Drive C Enhanced IDE Support 1y 1y YES
Bit 6 Hard Drive D Enhanced IDE Support 1y 1y YES
Bit 5 Hard Drive E Enhanced IDE Support 1y 1y YES
Bit 4 Hard Drive F Enhanced IDE Support 1y 1y YES
0 = Disabled
1 = Auto-Configured
Bit 3 Reserved for Drive C DMA Transfers 1y 1y NO
Bit 2 Reserved for Drive D DMA Transfers 1y 1y NO
Bit 1 Reserved for Drive E DMA Transfers 1y 1y NO
Bit 0 Reserved for Drive F DMA Transfers 1y 1y NO
1D Hard Drive [FF] {00}
Bit 7-6 Hard Drive C Translation Mode 11y 00y YES
Bit 5-4 Hard Drive D Translation Mode 11y 00y YES
Bit 3-2 Hard Drive E Translation Mode 11y 00y YES
Bit 1-0 Hard Drive F Translation Mode 11y 00y YES
00 = Standard CHS Mode
01 = Logical Block Addressing Mode
10 = Extended CHS Mode
11 = Auto-Configured
1E Miscelaneous [08] {08}
Bit 7-4 IDE Boot History POST POST NO
Bit 3 Base Memory Size 1y 1y YES
0 = 512KB
1 = 640KB
Bit 2-0 Fourth Boot Device 000y 000y YES
000 = Disabled
001 = Floppy
010 = Hard Disk
011 = Reserved
100 = CD-ROM
101 = Network
000 = Reserved
000 = Reserved
1F Security Hot Key Scan Code [39] {39} YES
20 Miscelaneous [00] {00}
Bit 7-5 Reserved for Future Use 000y 000y NO
Bit 4-0 Language 00000y 00000y YES
21-27 Reserved for Future Use [00] {00} NO
28 Product Dependent Shadow Control Byte 1 [00] {90}
Bit 7-5 ISA Memory Hole Size 000y 100y YES
000 = Disable
001 = 16KB
010 = 32KB
011 = 48KB
100 = 64KB
101 = 80KB
110 = 96KB
111 = Reserved for Future Use
Bit 4-2 ISA Memory Hole Base Address 000y 100y YES
000 = C8000 Physical
001 = CC000 Physical
010 = D0000 Physical
011 = D4000 Physical
100 = D8000 Physical
101 = DC000 Physical
110 = Reserved for Future Use
111 = Reserved for Future Use
Bit 1-0 Reserved for Future Use 00y 00y NO
29 Product Dependent Shadow Control Byte 2 [00] {00} NO
2A Product Dependent CPU Data Byte 1 [00] {00} NO
2B Product Dependent CPU Data Byte 2 [00] {00} NO
2C Product Dependent CPU Data Byte 3 [00] {00} NO
2D Product Dependent CPU Data Byte 4 [00] {00} NO
2E Standard Cmos Checksum High Byte [POST] {POST} NO
2F Standard Cmos Checksum Low Byte [POST] {POST} NO
30 Extended Memory (Actual-IBM Compat) Low Byte/KB [POST] {POST} NO
31 Extended Memory (Actual-IBM Compat) High Byte/KB [POST] {POST} NO
32 Century Byte [POST] {POST}
Bit 7 Hard Drive Reset Flag POST POST NO
Bit 6-0 Century POST POST NO
33 Scratch Byte [00] {00}
Bit 7 IBM Defined Top 128k Of Base Memory POST POST NO
Bit 6-4 Scratch bits NONE NONE NO
Bit 3-0 Product Dependent Chipset Data
TSC Cache Size and Type POST POST NO
34 Extended Memory (Actual) Low Byte/64KB [POST] {POST} NO
35 Extended Memory (Actual) High Byte/64KB [POST] {POST} NO
36 Reserved for OEM/User (Do NOT Use!) [NONE] {NONE} NO
37 Reserved for iBEL (Do NOT Use!) [NONE] {NONE} NO
38 Administrative Password [NONE] {NONE}
Bit 7-4 Administrative Password Seed NONE NONE NO
Bit 3-0 Administrative Password Checksum NONE NONE NO
39 Administrative Password Byte 1 [NONE] {NONE} NO
3A Administrative Password Byte 2 [NONE] {NONE} NO
3B Administrative Password Byte 3 [NONE] {NONE} NO
3C Administrative Password Byte 4 [NONE] {NONE} NO
3D Administrative Password Byte 5 [NONE] {NONE} NO
3E Administrative Password Byte 6 [NONE] {NONE} NO
3F Administrative Password Byte 7 [NONE] {NONE} NO
40 User Password [NONE] {NONE}
Bit 7-4 User Password Seed NONE NONE NO
Bit 3-0 User Password Checksum NONE NONE NO
41 User Password Byte 1 [NONE] {NONE} NO
42 User Password Byte 2 [NONE] {NONE} NO
43 User Password Byte 3 [NONE] {NONE} NO
44 User Password Byte 4 [NONE] {NONE} NO
45 User Password Byte 5 [NONE] {NONE} NO
46 User Password Byte 6 [NONE] {NONE} NO
47 User Password Byte 7 [NONE] {NONE} NO
48-4F Reserved for Future Use [00] {00} NO
50 User Type Drive C Number of Cylinders Low Byte [00] {C5} YES
51 User Type Drive C Number of Cylinders High Byte [00] {03} YES
52 User Type Drive C Number of Heads [00] {05} YES
53 User Type Drive C Number of Sectors Per Track [00] {11} YES
54 User Type Drive D Number of Cylinders Low Byte [00] {00} YES
55 User Type Drive D Number of Cylinders High Byte [00] {00} YES
56 User Type Drive D Number of Heads [00] {00} YES
57 User Type Drive D Number of Sectors Per Track [00] {00} YES
58 User Type Drive E Number of Cylinders Low Byte [00] {00} YES
59 User Type Drive E Number of Cylinders High Byte [00] {00} YES
5A User Type Drive E Number of Heads [00] {00} YES
5B User Type Drive E Number of Sectors Per Track [00] {00} YES
5C User Type Drive F Number of Cylinders Low Byte [00] {00} YES
5D User Type Drive F Number of Cylinders High Byte [00] {00} YES
5E User Type Drive F Number of Heads [00] {00} YES
5F User Type Drive F Number of Sectors Per Track [00] {00} YES
60 I/O Peripheral Byte 1 [C3] {8B}
Bit 7-6 Primary PCI IDE Enable 11y 11y YES
00 = Disabled
01 = Reserved
10 = Reserved
11 = Auto
Bit 5-3 Parallel Port Mode 000y 001y YES
000 = Standard AT
001 = Bidirectional (PS/2)
010 = ECP
011 = EPP
100 = EPP and ECP
101 = Reserved for Future Use
110 = Reserved for Future Use
111 = Reserved for Future Use
Bit 2 Reserved 0y 0y NO
Bit 1-0 Secondary IDE Enable 11y 11y YES
00 = Disabled
01 = Reserved
10 = Reserved
11 = Auto
61 I/O Peripheral Byte 2 [FF] {12}
Bit 7-4 Serial Port 1 1111y 0001y YES
0000 = Disabled
0001 = 3F8 - IRQ 4
0010 = 2F8 - IRQ 3
0011 = 3E8 - IRQ 4
0100 = 2E8 - IRQ 3
0101 = 3F8 - IRQ 3
0110 = 2F8 - IRQ 4
0111 = 3E8 - IRQ 3
1000 = 2E8 - IRQ 4
1001 = Reserved for Future Use
1010 = Reserved for Future Use
1011 = Reserved for Future Use
1100 = Reserved for Future Use
1101 = Reserved for Future Use
1110 = Reserved for Future Use
1111 = Auto
Bit 3-0 Serial Port 2 1111y 0010y YES
0000 = Disabled
0001 = 3F8 - IRQ 4
0010 = 2F8 - IRQ 3
0011 = 3E8 - IRQ 4
0100 = 2E8 - IRQ 3
0101 = 3F8 - IRQ 3
0110 = 2F8 - IRQ 4
0111 = 3E8 - IRQ 3
1000 = 2E8 - IRQ 4
1001 = Reserved for Future Use
1010 = Reserved for Future Use
1011 = Reserved for Future Use
1100 = Reserved for Future Use
1101 = Reserved for Future Use
1110 = Reserved for Future Use
1111 = Auto
62 I/O Peripheral Byte 3 [30] {30} NO
Bit 7-6 Reserved for Future Use 00y 00y NO
Bit 5-4 Onboard Floppy Controller 11y 11y YES
00 = Disabled
01= Enabled
10 = Reserved
11 = Auto
Bit 3-0 Reserved for Future Use 0000y 0000y NO
63 I/O Peripheral Byte 4 [1F] {02}
Bit 7-5 Reserved for Future Use 0000y 000y NO
Bit 4-0 Parallel Port Address 11111y 00010y YES
00000 = Disabled
00001 = 3BC - IRQ 7
00010 = 378 - IRQ 7 - ECP DMA 3
00011 = 278 - IRQ 7 - ECP DMA 3
00100 = Reserved for Future Use
00101 = 3BC - IRQ 5
00110 = 378 - IRQ 5 - ECP DMA 3
00111 = 278 - IRQ 5 - ECP DMA 3
01000 = Reserved for Future Use
01001 = Reserved for Future Use
01010 = 378 - IRQ 7 - ECP DMA 1
01011 = 278 - IRQ 7 - ECP DMA 1
01100 = Reserved for Future Use
01101 = Reserved for Future Use
01110 = 378 - IRQ 5 - ECP DMA 1
01111 = 278 - IRQ 5 - ECP DMA 1
10000 = Reserved for Future Use
10001 = Reserved for Future Use
10010 = Reserved for Future Use
10011 = Reserved for Future Use
10100 = Reserved for Future Use
10101 = Reserved for Future Use
10110 = Reserved for Future Use
10111 = Reserved for Future Use
11000 = Reserved for Future Use
11001 = Reserved for Future Use
11010 = Reserved for Future Use
11011 = Reserved for Future Use
11100 = Reserved for Future Use
11101 = Reserved for Future Use
11110 = Reserved for Future Use
11111 = Auto
64 I/O Peripheral Byte 5 [00] {00} NO
65 Boot Options [04] {01}
Bit 7-4 Hard-disk predelay
0000 = Disabled 0000 0000
0001 = 3 seconds
0010 = 6 seconds
0011 = 9 seconds
0100 = 12 seconds
0101 = 15 seconds
0110 = Reserved
0111 = 21 seconds
1000 = Reserved
1001 = Reserved
1010 = 30 seconds
1011 = Reserved
1100 = Reserved
1101 = Reserved
1110 = Reserved
1111 = Reserved
Bit 3 Reserved for Future Use 00000y 00000y NO
Bit 2-0 First Boot Device 100y 001y YES
000 = Disabled
001 = Floppy
010 = Hard Disk
011 = Reserved
100 = CD-ROM
101 = Network
000 = Reserved
000 = Reserved
66-69 Reserved for Future Use [00] {00} NO
6A Product Dependent Chipset Byte 0 [00] {00}
Bit 7-1 Reserved for Future Use 0000000y0000000yNO
Bit 0 Serial IR Enable 0y 0y YES
6B Product Dependent Chipset Byte 1 [10] {00}
Bit 7-6 Reserved for VESA Feature Connector 00y 00y NO
Bit 5-3 Boot with a PnP OS 010y 000y YES
000 = Disabled
001 = Other
010 = Windows 95
011 - 111 Reserved for Future Use
Bit 2 Reserved for Future Use 0y 0y NO
Bit 1 PCI Burst Enable 0y 0y YES
Bit 0 Reserved for Future Use 0y 0y NO
6C Product Dependent Chipset Byte 2 [00] {00} NO
6D Product Dependent Chipset Byte 3 [00] {00} NO
6E Product Dependent Chipset Byte 4 [80] {90}
Bit 7 Speaker Enable 1y 1y YES
Bit 6-5 Reserved for Future Use 00y 00y NO
Bit 4 ACFG mode. 0y 1y YES
0 = Setup Overrides ICU
1 = Setup Ignored
Bit 3 Palette Snooping Enable 0y 1y YES
Bit 2-0 Reserved for Future Use 000y 000y NO
6F Product Dependent Chipset Byte 5 [00] {00}
Bit 7-3 Reserved for Future Use 00000y 00000y N0
Bit 2 Floppy Write Protect 0y 0y NO
Bit 1-0 Frame Buffer Size 00y 00y YES
00 = Disable
01 = 1 MB Starts at 15 MB
10 = Reserved for Future Use
11 = Reserved for Future Use
70 Product Dependent PCI Control Byte 1 [PCI] {PCI} NO
Video Device/Function Number
71 Product Dependent PCI Control Byte 2 [PCI] {PCI} NO
Video Bus Number
72 Product Dependent PCI Control Byte 3 [PCI] {PCI} NO
Video LFB Size
73 Product Dependent PCI Control Byte 4 [PCI] {PCI} NO
Number of Busses
74 Product Dependent PCI Control Byte 5 [PCI] {PCI} NO
PNP CSN Count
75 Product Dependent PCI Control Byte 6 [PCI] {PCI} NO
PNP Read Port
76 Product Dependent PCI Control Byte 7 [42] {42} YES
PCI Latency Timer
77 Product Dependent PCI Control Byte 8 [00] {00}
ISA IRQ Free/Used List
Bit 7 IRQ 12 0y 0y YES
Bit 6 IRQ 11 0y 0y YES
Bit 5 IRQ 10 0y 0y YES
Bit 4 IRQ 9 0y 0y YES
Bit 3 IRQ 7 0y 0y YES
Bit 2 IRQ 5 0y 0y YES
Bit 1 IRQ 4 0y 0y YES
Bit 0 IRQ 3 0y 0y YES
78 Power Management Byte 1 [F0] {00}
Bit 7 APM Enable 1y 0y YES
Bit 6 IDE Power Down 1y 0y YES
Bit 5-4 VESA Video Power Down 11y 00y YES
00 = Disabled
01 = Standby
10 = Suspend
11 = Sleep
Bit 3-0 Reserved for Future Use 0000y 0000y NO
79 Power Management Byte 2 [14] {00} YES
Bit 7-0 Inactivity Timer
0-255 Minutes
7A Power Management Byte 3 [39] {39} YES
APM Hot Key Scan Code
7B Power Management Byte 4 [00] {00} NO
7C Power Management Byte 5 [00] {00} NO
7D Power Management Byte 6 [00] {00} NO
7E Extended Cmos Checksum High Byte [POST] {POST} NO
7F Extended Cmos Checksum Low Byte [POST] {POST} NO
NOTE:
1. Extended CMOS (128 Bytes) must be available for use.
2. The standard CMOS checksum is on CMOS registers from 10h to 2Dh.
Standard CMOS checksum: 10+11+...+2C+2D => 2E(H), 2F(L).
3. The extended CMOS checksum is on CMOS registers from 48h to 7Dh.
Extended CMOS checksum: 48+49+...+7C+7D => 7E(H), 7F(L).
Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.