PB Packard Bell 992 Motherboard Owner’s Manual

: June 3, 2024
: PB

Table of Contents

Packard Bell 992 Motherboard
Specification
Jumpers
Upgrades
ESS 1869 Audio
SiS 5598 Video Chipset
References
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Packard Bell 992 Motherboard
Owner’s Manual

Packard Bell 992 Motherboard

Item	Description
A	ISA Slots
B	ESS 1869F Audio Controller Chipset
C	PCI Slots
D	CD Audio-In Connector
E	Rear Ports – MIDI/Game Port, Audio Jacks
F	Jumper JP16 – On-Board VGA Function
G	Rear Ports – Parallel, Serial, VGA
Q	Jumper JP6 – CPU Voltage Selection
R	Jumper Block JP1 – CPU Voltage Selection
S	Primary Power Connector
T	FDD Connector
U	SRAM Cache Chips
V	Primary IDE Connector
W	Secondary IDE Connector
H	Header J8 – Serial Interface Port-II
---	---
J	Dual USB Port
K	PS/2 Keyboard & Mouse Ports
L	DIMM Sockets
M	Jumper JP25 – On-Board VGA Function
N	SiS 5598 PCI/ISA/VGA Controller Chipset
P	CPU ZIF Socket (Socket 7)
X	Jumper Block SW1 – CPU Clock Selection
Y	Jumper JP2 – CMOS Password Clear
Z	Header J29 – Wake-On-LAN
AA	Header J30 – Front Panel Connectors
BB	Battery
CC	Flash BIOS

Specification

Audio : ESS 1869F 3D Audio Chipset
Battery : Socketed 3 volt Lithium coin cell battery.
BIOS : Flash EEPROM. System BIOS by Award.
Bus : PCI 2.1/ISA based system bus. Supports CPU bus clock 55/60/66/75MHz. Supports 27.5/30/33MHz PCI bus speed
Cache : 16K level 1 cache. 0, 256K or 512K level 2 cache, non-upgradeable.
Chipset : SiS 5598 PCI/ISA/VGA Controller Chipset
CPU : This motherboard utilizes a 321-pin ZIF socket (Socket 7) and supports the following CPUs:
• Pentium P54C/CT/CS/CQS, MMX
• Cyrix 6×86/6x86L/6x86MX
• MII microprocessor
• idt-C6 microprocessor
• AMD-K5/K6/K6-2
Interfaces :
• 1 DB-9 Serial ports
• 1 DB-25 Parallel port
• 1 DB-15 VGA Video port
• 1 PS/2 keyboard port
• 1 PS/2 mouse port
• 2 USB connector
• 3 Stereo mini-jacks for Line In, Line Out & Mic
RAM : 2 168-pin DIMM sockets, upgradeable to 256MB total. SDRAM Supports 3.3V Unbuffered Synchronous
DRAM
Video : Integrated in the SiS 5598 PCI/ISA/VGA Controller Chipset
Video Memory : Shared system memory area: 0.5 to 4MB.

Jumpers

Jumper	Function	Configuration
**** JP2	**** CMOS Password Clear	1-2 – Normal Operation 2-3 – Clear CMOS

Data
No jumper – Onboard Battery Disabled
JP16| On-Board VGA Function| 1-2 – Disabled
2-3 – Enabled
JP25| On-Board VGA Function| 1-2 – Enabled
2-3 – Disabled

CPU Voltage Selection (JP1)
Single Voltage CPUs – (Intel P54C/CQS/CT, Cyrix 6×86, AMD K5,idt Win Chip)

Core Voltage	I/O Voltage	JP1	JP6
3.5V	3.5V	V0(1-2) closed

V1(3-4) closed
V2(5-6) closed
V3(7-8) closed| Open

Dual Voltage CPUs – (Intel P55C/MMX, Cyrix 6x86L/6x86MX/MIII, AMD K6/K6-2)

Core Voltage	I/O Voltage	JP1	JP6
__ 2.1V	__ 3.3V	V0(1-2) closed V1(3-4) open V2(5-6) open V3(7-8) open	__

CPU Clock Selection (SW1)
Intel CPU

CPU Speed| Bus Clock & Multiplier| SW1 (1)| SW1 (2)| SW1 (3)| SW1 (4)| SW1 (5)| SW1 (6
---|---|---|---|---|---|---|---
90MHz| 60MHz x 1.5| Closed| Open| Open| Open| Open| Open
100MHz| 66MHz x 1.5| Open| Open| Open| Open| Open| Open
120MHz| 60MHz x 2| Closed| Open| Open| Closed| Open| Open
133MHz| 66MHz x 2| Open| Open| Open| Closed| Open| Open
150MHz| 60MHz x 2.5| Closed| Open| Open| Closed| Closed| Open
166MHz| 66MHz x 2.5| Open| Open| Open| Closed| Closed| Open
200MHz| 66MHz x 3| Open| Open| Open| Open| Closed| Open
233MHz| 66MHz x 3.5| Open| Open| Open| Open| Open| Open
---|---|---|---|---|---|---|---

AMD-K5 CPU

CPU Speed| SW1 (1)| SW1 (2)| SW1 (3)| SW1 (4)| SW1 (5)| SW1 (6)
---|---|---|---|---|---|---
PR-90| Closed| Open| Open| Open| Open| Open
PR-100| Open| Open| Open| Open| Open| Open
PR-120| Closed| Open| Open| Closed| Open| Open
PR-133| Open| Open| Open| Closed| Open| Open
PR-166| Closed| Open| Open| Closed| Closed| Open
PR-200| Open| Open| Open| Open| Closed| Open

AMD-K6/K6-2 CPU

CPU Speed| Bus Clock & Multiplier| SW1 (1)| SW1 (2)| SW1 (3)| SW1 (4)| SW1 (5)| SW1 (6)
---|---|---|---|---|---|---|---
166MHz| 66MHz x 2.5| Open| Open| Open| Closed| Closed| Open
200MHz| 66MHz x 3| Open| Open| Open| Open| Closed| Open
233MHz| 66MHz x 3.5| Open| Open| Open| Open| Open| Open
266MHz| 66MHz x 4| Open| Open| Open| Closed| Open| Closed
300MHz| 66MHz x 4.5| Open| Open| Open| Closed| Closed| Closed
333MHz| 66MHz x 5| Open| Open| Open| Open| Closed| Closed

Cyrix 6×86/6x86L CPU
Cyrix rates the speed of their processors as a megahertz-equivalent performance level based upon industry-standard benchmark comparisons to the Pentium? II processor when tested in equivalently configured computer systems. In the table below, the Cyrix CPU designation is followed by the internal CPU clock speed. For example, the PR-150+ has an internal CPU clock speed of 120 MHz.

CPU Speed| Bus Clock & Multiplier| SW1 (1)| SW1 (2)| SW1 (3)| SW1 (4)| SW1 (5)| SW1 (6)
---|---|---|---|---|---|---|---
PR-150+ 120MHz| 60MHz x 2| Closed| Open| Open| Closed| Open| Open
PR-166+ 133MHz| 66MHz x 2| Open| Open| Open| Closed| Open| Open
PR-200+ 150MHz| 75MHz x 2| Open| Closed| Closed| Closed| Open| Open

Cyrix 6x86MX/MII CPU

CPU Speed| Bus Clock & Multiplier| SW1 (1)| SW1 (2)| SW1 (3)| SW1 (4)| SW1 (5)| SW1 (6)
---|---|---|---|---|---|---|---
PR-150+ 120MHz| 60MHz x 2| Closed| Open| Open| Closed| Open| Open
PR-166+ 133MHz| 66MHz x 2| Open| Open| Open| Closed| Open| Open
PR-166+ 150MHz| 60MHz x 2.5| Closed| Open| Open| Closed| Closed| Open
PR-200+ 150MHz| 75MHz x 2| Open| Closed| Closed| Closed| Open| Open
PR-200+ 166MHz| 66MHz x 2.5| Open| Open| Open| Closed| Closed| Open
PR-200+ 180MHz| 60MHz x 3| Closed| Open| Open| Open| Closed| Open
PR-233+ 188MHz| 75MHz x 2.5| Open| Closed| Closed| Closed| Closed| Open
PR-233+ 200MHz| 66MHz x 3| Open| Open| Open| Open| Closed| Open
PR-300+ 233MHz| 66MHz x 3.5| Open| Open| Open| Open| Open| Open
PR-300+ 225MHz| 75MHz x 3| Open| Closed| Closed| Open| Closed| Open
---|---|---|---|---|---|---|---
PR-333+ 263MHz| 75MHz x 3.5| Open| Closed| Closed| Open| Open| Open

idt-Win Chip CPU

CPU Speed| Bus Clock & Multiplier| SW1 (1)| SW1 (2)| SW1 (3)| SW1 (4)| SW1 (5)| SW1 (6)
---|---|---|---|---|---|---|---
180MHz| 60MHz x 3| Closed| Open| Open| Open| Closed| Open
200MHz| 60MHz x 3| Open| Open| Open| Open| Closed| Open

Upgrades

Cache Upgrade. The 992 motherboard comes with 0, 256k or 512K Level 2 cache. The cache is not upgradeable.
CPU Upgrade. This motherboard can accommodate the following CPUs:
• Intel Pentium P54C/CT/CS/CQS, MMX
• Cyrix 6×86/6x86L/6x86MX
• MII microprocessor
• idt-C6 microprocessor
• AMD-K5/K6/K6-2
• Zero Insertion Force (ZIF) socket. Uses the 321-pin Type 7 CPU Socket. Not keyboard switchable. Disable cache to slow down the system.
RAM Upgrade.
• Maximum on Motherboard: 256MB
• Uses 8/16/32/64/128 MB DIMMs, 60ns or faster EDO SDRAM DIMMs
• Supports only non-parity DIMM modules.

Notes – The 168-pin DIMM sockets will accept 3.3V 1MBx64 (8MB), 2MBx64 (16MB), 4MBx64 (32MB), and 8MBx64 (64MB) and 16MBx64 (128MB) DIMMs. Bank 1 will be populated as the default from the factory. No configuration jumpers: BIOS detects memory size, and memory type. This motherboard will not accept 36-bit DIMM modules (parity).

ESS 1869 Audio

Bits per channel : 16 bits per channel
BUS type : Integrated
Device Manager Name : ES1869 Plug and Play AudioDrive
Driver Files :
• ES1869.VXD
• MMDEVLDR.VXD
• ESSDC.EXE
• ESSMPU.DRV
• ESFM.DRV
• ES1869.DRV
Midi Interface : Yes
PnP Compatibility : Yes
Ports :
• MIDI/Game Port
• Line-In
• Line-Out
Default Settings :
• Port Address 220
• IRQ Setting 5
Audio Chipset : ESS 1869
Sample Rate : 4Khz to 48Khz
Compatibility :
• Sound Blaster
• Sound Blaster Pro
• Microsoft Sound System.
Meets PC 97/PC 98 and WHQL Specifications.

SiS 5598 Video Chipset

Memory : Shared System Memory Area 0.5MB, 1MB, 1.5MB, 2MB, 2.5MB, 3MB, 3.5MB, 4MB
Acceleration : The Hardware Command Queue is a 32 doublewords queue built in front of the graphics engine.
Chipset : SiS 5598. The VGA controller, Keyboard controller, USB controller, RTC are integrated.
Compatibility : 32 bit/64 bit mixed mode configuration
Bus :
• Integrated on Motherboard.
• Supports tightly coupled host interface to VGA to speed up GUI performance and the video playback frame rate.
• Supports 32-bit PCI local bus standard revision 2.1
RAMDAC : Built-in programmable 24-bit true-color RAMDAC with reference-voltage generator
Driver : SIS597.DRV
Device Manager Name : SiS 5597/5598
Standards Supported :
• Page Flipping – Supports Concurrent Write Back
• Support CAS before RAS Refresh
• Support 32-bit PCI local bus standard revision 2.1
• Built-in an enhanced 64-bit BITBLT graphics engine
• Support tightly coupled host interface to VGA to speed up GUI performance and the video playback frame rate
• Support direct access to video memory to speed up GUI performance and the video playback frame rate
Hardware Interfaces : Phillips SAA7110/SAA7111 Brooktree Bt815/817/819A (8-bit SPI mode 1,2) video decoder interface. Standard feature connector logic support.
Refresh Rates :
Resolution| Refresh Rates| Colours Supported
---|---|---
640×480| 60,72,75,85 256/32K/64K/16M| colours NI
800×600| 56,60,72,75,85 16/256/32K/64K/16M| colours NI
1024×768| 60,70,75,85 16/256/32K/64K/16M| colours NI
1280×1024| 60,75 16/256| colours NI, 32K/64K colours interlace only
Virtual Screen : Support virtual screen up to 2048×2048