Sis 5598 chipset: SiS 5598 — Chipset Guide

2 мая, 2023

ABIT PD5N SiS 5598 Socket-7 Board

by Anand Lal Shimpion December 10, 1997 7:20 PM EST

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  • Motherboards

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IndexFeatures

MTech held the high ground for
some time with their Mustang being the only truly successful motherboard based on a
proprietary design concocted by Silicon Integrated Systems, otherwise known as SiS. 
MTech based their entire Mustang design around the single chip solution of the SiS Trinity
5571 chipset.   However MTech now has some competition for the throne, with ABIT’s
introduction of their next generation SiS 5598 based all-in-one PD5N
motherboard.  How well does it compare to the competition?  Does MTech finally
have a worthy competitor for the SiS throne?  Let’s find out. ..

Motherboard
Specifications












Socket
Style:		 Socket 7
Chipset: SiS 5598
Cache: 512KB
Form
Factor:		 AT (w/ AT &
ATX PS Connectors)
BUS
Speeds:		 50 / 55 / 60 / 66
/ 68 / 75 / 83 MHz
Clock
Multipliers: 		1. 5x / 2.0x /
2.5x / 3.0x / 3.5x
Voltages
Supported:		 2.8 / 2.9 / 3.2 /
3.38 / 3.5
RAM
Slots:		 4 72pin SIMM
Slots (EDO/FPM)
PCI/ISA
Slots:		 4 PCI Slots

3 ISA Slots
BIOS: AWARD PnP BIOS
PCI
EIDE Controller:		 Super I/O

2 EIDE Channels

1 FDD Channel

2 Serial /1 EPP

 

The Good

When ABIT referred to their new PD5N as an all
in one motherboard they weren’t kidding at all.   The PD5N integrates the standard, 4
PCI and 3 ISA slots, with the onboard SiS 5598 Busmastering PCI IDE Controller, as well a
speedy SiS True Color PCI VGA Graphics accelerator!  This almost completely
eliminates the need for a third party video adapter, however as you will be able to tell
by the Winstone scores in the Test the onboard VGA controller is no match for a genuine
Matrox.   Fully configurable via the AWARD PnP BIOS Setup Utility, the VGA controller
is connected to the motherboard via a low profile cable included with the PD5N. 

The PD5N seems to break a lot of traditional
ABIT practices found and implemented in their most popular motherboards like the AX5 and
the IT5H.  Like ABIT’s newest TX motherboard the TX5N, the PD5N provides users with a
easy to use alternative to the popular SoftMenu Jumperless CPU Configuration ABIT has
graciously spoiled us all with.   Instead of being tediously configured via jumpers,
the PD5N can be completely setup using 2 sets of Dip Switches (8 switches in each set)
with one set used to configure the Voltage settings and the other used to set the bus
speed and clock multiplier.   The PD5N I received did not have a user’s manual,
however that was because it was one of the first out on the market it wasn’t shipped with
one, any PD5N units you’ll purchase will have the classic ABIT manual which will provide
you with hours of fun filled reading 😉

After setting up the hardware side of the
PD5N, configuring the BIOS isn’t that much of a task although it is a little different
that what most people are used to with the AWARD BIOS.  Upon bootup, if using the
onboard VGA controller (which can easily be disabled by plugging in your own video card
and unplugging VGA connector cable) the BIOS not only displays the amount of system memory
but also the amount of RAM shared by the video adapter (by default it is set to 1MB
although it can be changed via the BIOS setup).  Using the AWARD Setup utility, you
can also modify the memory clock of the onboard VGA accelerator, however when taken up to
70MHz (the maximum setting) some instability might result so be careful.   On a side
note, the onboard VGA Accelerator isn’t fully supported by Linux, however since it is
based on the VESA specification you can simply select the VESA VGA driver or Standard VGA
under X.

The features of any motherboard are made
possible, for the most part, by the chipset it is designed around.  The PD5N, as
mentioned earlier, is designed around the new SiS 5598 chipset which is a variant of the
SiS 5597 chipset.   Unfortunately, very little is known about the SiS 5598 chipset
other than the obvious.  Take a look at the chipset guide for a complete list of
features  the 5597/5598 supports.  Here is an abridged list of features specific
to the PD5N:

  • onboard VGA controller

  • onboard USB controller

  • Support for the 75MHz bus speed and
    Asynchronous PCI Bus

  • Support for UltraDMA Hard Drives

The performance and stability of the PD5N is
about average for a motherboard based on a non-Intel chipset (excluding VIA based
motherboards which simply rock), its undocumented support for the 83. 3MHz bus speed (the
83.3MHz setting is: SW6 — ON SW7 — ON SW8 — ON, on the bus speed dip switch) makes it an
even better value for those looking for an all-in-one solution for a low cost
system. 

The Bad

Although the SiS 5598 chipset fully supports
SDRAM, actual SDRAM slots are mysteriously missing from the PD5N.  This could
indicate problems with the SiS 5598 and SDRAM, or just an attempt to reduce the cost of
the motherboard.  Another disappointment is the lack of support for the Cyrix/IBM
Linear Burst Mode as found in other SiS Chipsets.  SiS doesn’t even mention future
support for linear burst mode on their homepage, which is sad for the most part because
that was one of the 5571’s trademark features.  Of course that isn’t a fault of the
motherboard, rather the chipset, however for all of you 6×86 and 6x86MX users out there,
don’t expect to see bone shattering performance with the PD5N, although it is fairly
competitive with those two processors.  

Features
IndexFeatures

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Full Yes SIS 5598 TX/VGA

Full Yes SIS 5598 TX/VGA

DescriptionDownloadsCPUs

Form factor

Baby-AT (max 220 x 330mm)

PSU connector

AT-Style (P8-P9), ATX 1.x (20-pin ATX)

Chipset

SiS 5597/5598 ((Jedi) Pentium PCI/ISA Chipset)

Chipset parts

SiS 5597
SiS 5598

Dimensions

Unknown

CPU socket

Socket 7 (PGA321)

CPU platforms

Pentium (P54)Pentium MMX (P55)

Supported FSB speed

50MHz

Cache

256 KB
, 512 KB

Supported RAM size

384 MB

Supported RAM types

SDR UDIMM, 168-pin EDO UDIMM

Video chipset

SiS 5598 (SiS 6326)
(4MB max VRAM)

I/O ports

1x 

Floppy interface

2x 

IDE interface

1x 

PS/2 keyboard

1x 

Parallel

2x 

Serial

2x 

USB 1. x

1x 

VGA

1x 

AT Keyboard

Expansion slots

4x 

32-bit PCI

3x 

16-bit ISA

Last updated 2022-06-19T07:30:05Z

Drivers:
3 entries

Language

Media type

OS Compatibility

Name

Version

1x

Windows 95

Windows 98

Windows ME

Windows NT 3.5

Windows NT 4.0

Windows 2000

SiS 5598 IGP Driver

1.13

1x

Windows 95

Windows 98

Windows ME

Windows 2000

Windows XP

SiS IDE Driver (New Chipsets)

2. 04A

1x

MS-DOS 6.22

OS/2 Warp 3.0 ?

OS/2 Warp 4.0

Windows NT 3.1

Windows NT 3.5

Windows NT 4.0

Windows 95

Windows 98

SiS IDE Driver (Old Chipsets)

2.13

BIOS images:
1 file

Manuf.

POST String

Note

Core Ver.

BIOS Ver.

Award

10/30/97-SiS-5598-SMC37C-2A5IIF3AC-00

1.04A

4.51PG

4.1

Documentation:
2 entries

  • SIS 5598 TX Jumper Settings
    (English)

  • SIS 5598 TX Jumper Settings
    (English)

Model

Speed

FSB

Voltages

L1 Cache

L2 Cache

L3 Cache

Core

Process

TDP

AMD K5 PR75

75MHz

50MHz

3. 5V

24KB

—

—

SSA/5

350nm

—

Intel Pentium 75

75MHz

50MHz

3.3V

16KB

—

—

P54C

600nm

—

No NPUs listed.

Image 1 of 1

Disclaimer

The info found in this page might not be entirely correct. Feel free to amend this page by logging in, contacting us on Discord or via email.

New SiS chipsets

Silicon Integrated Systems Corporation, the former leading manufacturer of chipsets for boards based on the 486 processor, quickly lost its rights with the release of the Pentium processor. But this does not mean that now no one takes into account its products. Quickly refocusing on the production of cheap chipsets, SiS occupied its niche in the market. The company has now announced the SiS5581, SiS5591, SiS5597 chipsets for Pentium systems and SiS5602 for Pentium II systems.

SiS5581

Designed for systems based on Pentium processors, this chipset is made as a single BGA chip (5581 or 5582, differing in pin arrangement) and contains keyboard, USB and RTC controllers. With low cost, it supports external bus frequency up to 75 MHz and ACPI (Advanced Configuration and Power Interface) power saving standard. Also supported are the Ultra DMA-33 specifications for the embedded IDE controller and Common Architecture, which is designed to port ISA functions to PCI, which is required by the PC9 specification.8.

SiS5581 Highlights
  • Supports bus speeds up to 75MHz
  • Integrated DRAM Controller supporting FPM/EDO/SDRAM DRAM
  • Integrated L2 Cache Controller
  • Integrated Host-to-PCI and PCI Bridges ISA
  • Integrated PCI dual-channel IDE controller
  • Integrated Legacy PMU and ACPI controllers
  • Integrated write-back and prefetch buffers for increased performance
  • Integrated USB controller
  • I2C bus support for SDRAM and frequency synthesizer
  • Integrated ISA controller
  • Integrated keyboard controller
  • Integrated real time clock (RTC)
  • High-tech chip implemented as 480-pin BGA
  • 0. 35 µm technology
  • Supply voltage 3.3V

SiS5591

The second of the chipsets that appeared after the VIA VP3, designed for Pentium systems, supporting the AGP port. It should be noted that, in particular, due to the internal architecture, this chipset is recommended for use in conjunction with a Cyrix processor.

  • Supports 6 RAS lanes for FPM/EDO/SDRAM DIMMs/SIMMs
  • Supports 2MB to 768MB main memory
  • Supports 256k/512K/1M/2M/4M/8M/16M/32M memory modules
  • Support for 3.3V and 5V modules
  • Timing chart for FPM DRAM when reading 5/6-3-3-3(-3-3-3-3)
  • Timing chart for EDO DRAM when reading 5/6-2 -2-2(-2-2-2-2)
  • Timing diagram for SDRAM when reading 5/6/7/8-1-1-1(-2-1-1-1)
  • When writing X-1-1-1/X-2-2-2/X-3-3-3 timing
  • PCI High Performance Arbitration
    • Support up to 5 PCI Bus Master devices
    • Support direct access between CPU/L2 and AGP/Memory
    • Direct access support between CPU and Memory, and between two PCI devices
  • Integrated Host-to-PCI bridge
    • Synchronous and asynchronous PCI support
    • IDE 9 write-back support0014
    • Support for pipelined access between CPU and PCI
    • Support for advanced PCI Bus Mastering
  • Integrated 66 MHz AGP port
    • Support for pipelined access between CPU and AGP
    • Support for advanced access to AGP 9013 memory channels 9013 to 16-piece GRLT(Graphics Remapping Lookaside Table) to increase AGP performance
    • Support for PCI-to-PCI memory bridge functions used when accessing AGP
  • Integrated write-back and prefetch buffers
    • CPU-to-Memory Write Buffer (CTMFF) size — 8 QWord
    • CPU-to-Memory Read Buffer size — 4 QWord
    • CPU-to-PCI Write Buffer size (CTPFF) — 8 QWord
    • PCI-to-Memory Write Buffer (CTPFF) Size — 8 QWord
    • PCI-to-Memory Read Buffer (CTPFF) Size — 8 QWord
    • Embedded KBC/RTC/USB
  • Common Architecture 9 support0014
  • Ultra DMA 33 support
  • Keyboard enable support
  • I2C bus support
  • 2MB Flash ROM interface support
  • Chip 5591 : 533-pin BGA based on 0. 35µm technology and 9013V 0.35V chip 5595 : 208-pin 0.5µm PQFP 5V

    • Competitive Comparison

    9

    SiS5591 Intel 430TX VIA VP3
    Package 1 x PQFP, 1 x BGA 1 x PQFP, 1 x MBGA 1 x PQFP, 1 x BGA
    Dual/Multi CPU Support no no no
    Max. L2 Cache Size 1024 kB — Pipelined Burst 512 kB — Pipelined Burst 2048 kB — Pipelined Burst FPM, EDO, SDRAM FPM, EDO, SDRAM
    Max. DRAM 768 MB — 6 RAS lines 256 MB — 6 RAS lines 1024 MB — 8 RAS lines
    Max. Cacheable DRAM 768 MB 64 MB 1024 MB
    5-3-3-3 5-3-3-3
    EDO RAM 5-2-2-2 5-2-2-2 5-2-2-2-2-2
    Bedo RAM N/A N/A N/A
    SDRAM 5-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1EV 1-1 5-1-1
    DRAM ECC Support NO No. YES
    DRAM REPHIE0173 CAS before RAS CAS before RAS CAS before RAS
    No. of CPU Write Buffers 8 QW = 64 Byte 5 QW = 40 Byte 32 QW = 256 Byte
    PCI Specification 2.1 2.1 2.1
    Asynchronous PCI Timing yes n/a n/a
    Max. no. of PCI Masters 5 5 5
    No. of CPU to PCI Buffers 8 DW = 32 Byte 5 DW = 20 Byte 6 DW = 24 Byte
    of PCI to DRAM Buffers post/prefetch 8 DW = 32 Byte / 8 DW = 32 Byte 10 DW = 40 Byte / 18 DW = 72 Byte 48 DW = 192 Byte / 48 DW = 192 Byte
    USB Support yes yes yes
    ATA-33 Extension yes yes yes
    PIO Master/Slave Independent Drive Timing yes yes yes
    DMA Bus Master Support yes yes yes
    AGP Support0440

    SiS5597

    While dominating the Socket 7 chipset market, SiS was able to maintain a market share with the release of chipsets with integrated video. SiS5597 continues this line and implements shared memory technology for the video card. This means that not only a motherboard is purchased for a small price, but also a video card that does not need additional video memory due to the use of system memory.

    In addition to video, this chipset also integrates a keyboard controller, a real-time clock and a USB controller. In addition, as in most chipsets from this company, the frequency of 75 MHz and the advanced power management standard Advanced Configuration and Power Interface (ACPI) are officially supported. The integrated IDE controller supports the Ultra DMA-33 specification and the integrated I/O controller complies with the Common Architecture.

    The chipset is available as a single BGA chip, 5597 or 5598, depending on configuration.

    SiS5581 Highlights
    • Supports up to 75 MHz bus speed
    • Integrated DRAM Controller supporting 384MB FPM/EDO/SDRAM DRAM
    • Integrated L2 Cache Controller
    • Integrated PCI and Host-to-PCI bridges
    • PCI Integrated Dual Channel IDE Controller
    • Legacy PMU and ACPI 9 Integrated Controllers0014
    • Integrated write-back and prefetch buffers for increased performance
    • Integrated USB controller
    • I2C bus support for SDRAM and frequency synthesizer
    • Integrated ISA controller
    • Integrated keyboard controller
    • Integrated real time clock (RTC) 9013 Integrated video controller with 2D accelerator
    • High-tech chip implemented as a 480-pin BGA
    • Performance according to 0. 35 micron technology
    • Supply voltage 3.3V

    SiS5602

    The SiS 5602 chipset is designed for systems based on the Pentium II processor. It is made in the form of a single 560-pin chip, made according to 0.35 micron technology, and contains a 64-bit video accelerator, a real-time clock controller with 256-byte CMOS, a keyboard controller, a dual-channel IDE controller, and a USB controller. This chipset fully complies with and supports PC9 specifications.7, Ultra DMA/33 and GTL+ Host Bus. Supported from 2 MB to 512 MB of all types of memory — FP/EDO/SDRAM in DIMM and SIMM modules.

    Spec:
    • Support for Intel Pentium II CPU up to 66 MHz bus
    • Dynamic Deferred Translation support
    • GTL+ compliant bus
    • Support for 6/3 banks of FPM/EDO/SDRAM (single-sided) DIMM/SIMM modules
    • Support from 2 MB to 512 MB main memory
    • ECC error correction protocol support with single bit correction or multi-bit error detection
    • ACPI compliant
    • PCI 2. 1 compliant with 5V 33MHz interface
    • CPU-to-DRAM and PCI-to direct access -PCI
    • Shared DMA support
    • Serial IRQ support
    • Integrated keyboard controller
    • Integrated real time clock controller and 256 bytes SRAM
    • PCI Dual Channel IDE Controller
    • Ultra DMA/33 Support
    • Integrated USB Controller
    • Integrated 64-bit VGA Controller
    • Direct Processor Access to VGA Controller at Bus Speed ​​
    • Direct Processor Access to Video Memory buses
    • Allocation from system memory for video blocks of 0.5Mb, 1Mb, 1.5Mb, 2Mb, 2.5Mb, 3Mb, 3.5Mb, 4Mb
    • Turbo Queue architecture support (software command queue in the invisible part of memory)
    • Built-in transparent BitBLT to speed up direct access to video memory
    • Built-in video decode interfaces Philips SAA7110/SAA7111, Brooktree Bt815/817/819A (8-bit SPI mode 1.2)
    • Supports built-in connector feature RAMD for graphics, switchable
    • DCI driver support
    • Direct Draw driver support
    • Direct MPEG driver support
    • 560-pin BGA 9 package0014

    May 22, 1998

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    Author: AK

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