Abit BX 133 User Manual

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BX 133

Overclocking Guide

ABIT Computer Corporation

MN-193-2A0-13

Notice: All suggestions are only for reference, ABIT doesn’t guarantee any hardware configuration beyond its specification.

Again, ABIT makes it possible!

ABIT is a company at the forefront of innovation. In the past, ABIT has developed SoftMenu™, which brought jumperless technology to motherboards. ABIT was also the first company which brought the Ultra DMA/66 technology to BX motherboards. ABIT is now bringing forth the latest technological advancement for motherboards: “133 MHz for All.” In order to meet the trend of higher frequencies on PC’s, ABIT is now equipping its’ products with 133 MHz capabilities. With special hardware designs and SoftMenu™III technology, ABIT’s BE6-II& BF6 can provide users with a stable PC133 system.

Testing was completed by the NSTL, the leading independent microcomputer testing laboratory. Due to some limitations of other peripheral devices, we suggest that the user set up their system according to our instructions in the following sections. We trust you will enjoy the enhanced performance of our products.

What is PC133

PC133 is the latest memory standard, increasing bus speeds 33% when compared to the PC100. In the past, 133MHz speed was only available when users overclocked their system. But users have previously found that they could not overclock their system to 133MHz successfully due to set CPU, chipset and memory restrictions. The highest CPU FSB clock was 100MHz. Chipsets and memory also only supported up to a 100MHz system bus clock. The 133MHz CPU front side bus is now available and the memory standard has been advanced to the higher 133MHz speed. The 133 MHz system is now ready for market.

What is SoftMenuIII technology?

SoftMenu™III is ABIT’s newest BIOS offering. The ABIT SoftMenu™III technology not only lets users configure CPU settings easily, but also allows the user greater freedom in the setting of the CPU FSB (Front Side Bus) clock settings.

How does SoftMenuIII help to provide a more stable PC133 system

ABIT SoftMenu™III provides the user with more CPU setting items, including settings for I/O voltage, PCI/CPU FSB Clock, AGP/CPU FSB Clock, AGP Transfer Mode and 120 settings for the FSB clock. All of these setting items are adjustable, thereby giving the user the power to adjust, according to system demands. This gives the user more choice and flexibility while running the 133MHz system bus clock on BX motherboards. We will detail these setting items in the following.

!Unlimited Front Side Bus (FSB)

In addition to the default settings for each processor speed, SoftMenu™III provides 120 user-definedsettings on the FSB clock. Settings are at 66, 75 and from 83 to 200 MHz.

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The settings from 83MHz to 200MHz can be altered in increments of 1, giving the user the power to find the best FSB setting, resulting in the best system performance. This technology equips ABIT’s products with the most flexibility and greatest compatibility to current and future specifications.

!CPU Multiplier Factor

From 2 to 8 (Increment 0.5). A total of 13 sets of multiplier factors support all current CPUs and allows for support of future CPUs. The CPU operating frequency equals FSB clock times the multiplier factor.

!PCI/CPU FSB Clock

½, 1/3, and now 1/4 is also a selection option. It correlates with the CPU FSB clock you set. For example, if you set the CPU FSB clock to 100MHz and choose 1/3 here, the PCI clock will be 33.3 MHz. We suggest you choose the ratio, which brings the PCI clock as close to 33MHz as possible.

!AGP/CPU FSB Clock

1/1 and 2/3 options let the user adjust the AGP clock. We suggest you choose the ratio which brings the AGP clock as close to 66MHz as possible.

!CPU Core Voltage

1.3 – 3.5 V manually adjustable but protected by SoftMenu™III from damaging the CPU. If the “CPU Operating Frequency” is not set to “User define”, BIOS will automatically set the voltage required by the CPU.

!I/O Voltage Adjustable (8 sets, 3.2-3.9V)

This function allows the user to adjust the voltage supplied to DRAM, AGP, and the Chipset, thus greatly increasing the possibility of higher performance. If the “CPU Operating Frequency” is not set to “User define”, BIOS will automatically set the voltage required by CPU.

!AGP Transfer Mode:

This function allows the user to determine the capability of the AGP device. Selecting “Default” gives optimized performance. The video driver will decide the data transfer mode automatically. If the CPU FSB clock exceeds 125MHz, setting AGP Transfer Mode to “Normal” will result in a more stable system.

!In-OrderQueue Depth

This item determines the command queue depth between processor and chipset. Selecting “8” gives optimized performance. Selecting “1” results in a more stable system.

!Level 2 Cache Latency

This item allows the user to set CPU L2 cache speed. Selecting “Default” gives the most stable performance. Smaller latency gives faster performance, but may cause system instability.

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" Our Suggestion

We strongly suggest that you use our default settings for each processor speed when you want to configure your CPU settings. We meticulously and repeatedly test these default settings. Adopting these settings will give you the optimum system for stability. The following table lists all of the CPU default settings.

CPU Speed

FSB Clock

PCI Clock / CPU FSB Clock

AGP Clock / CPU FSB Clock

 

 

 

 

233

66

1/2( 33 )

1/1 (66)

266

66

1/2 ( 33 )

1/1 (66)

300

66

1/2 ( 33 )

1/1 (66)

333

66

1/2 ( 33 )

1/1 (66)

300

100

1/3 (33.3)

2/3 (66.67)

350

100

1/3 (33.3)

2/3 (66.67)

400

100

1/3 (33.3)

2/3 (66.67)

450

100

1/3 (33.3)

2/3 (66.67)

366

66

1/2 ( 33 )

1/1 (66)

400

66

1/2 ( 33 )

1/1 (66)

433

66

1/2 ( 33 )

1/1 (66)

466

66

1/2 ( 33 )

1/1 (66)

500

66

1/2 ( 33 )

1/1 (66)

533

66

1/2 ( 33 )

1/1 (66)

533

133

1/4 (33.25)

2/3 (88.67)

500

100

1/3 (33.33)

2/3 (66.67)

550

100

1/3 (33.33)

2/3 (66.67)

600

100

1/3 (33.33)

2/3 (66.67)

600

133

1/4 (33.25)

2/3 (88.67)

650

100

1/3 (33.33)

2/3 (66.67)

667

133

1/4 (33.25)

2/3 (88.67)

700

100

1/3 (33.33)

2/3 (66.67)

750

100

1/3 (33.33)

2/3 (66.67)

800

100

1/3 (33.33)

2/3 (66.67)

733

133

1/4 (33.25)

2/3 (88.67)

800

133

1/4 (33.25)

2/3 (88.67)

If you want to choose “user define” and configure every setting manually, please pay attention to the following:

First, when you are selecting the “PCI/CPU FSB Clock”, please refer to the CPU FSB clock you set and choose the ratio which brings the PCI clock as close to 33MHz as possible.

Second, when you are selecting the “AGP/CPU FSB clock”, please refer to the CPU FSB you set and choose the ratio which brings the AGP clock as close to 66MHz as possible.

Finally for the PC133 system, we recommend the setting of the “PCI/CPU FSB Clock” to “1/4”; the “AGP/CPU FSB Clock” to 2/3; the “AGP Transfer Mode” to “Normal”; and the “In-OrderQueue Depth” to “1.”

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Supporting List

! AGP Cards

Testing Equipment:

CPU: Intel Coppermine 733 MHz( 133 MHz FSB)

OS: Win98 SE

Memory: TWINMOS Winbond 128M*3PC-133

HDD: IBMDMVS-950

CD-ROM: Mitsumi 40X

SCSI Card: AdaptecAHA-2940UWPro

Sound Card: FIC Hi-Five

Power Supply: High PowerHPC-250G2

BIOS: beh_qj.bin

Vender/Model Name

Chipset

Result

Leadtek / S310

3Dfx Voodoo Banshee

Pass

3Dfx / Voodoo3 2000

3Dfx Voodoo3 2000

Pass

3Dlabs / Oxygen VX1

3Dlabs

Pass

ATI / 3D Range Pro

ATI 3D Rage Pro

Pass

ATI / Xpert 98

ATI 3D Rage Pro

Pass

ASUS / V264GT3

ATI 3D Rate Pro

Pass

ATI / XPERT 128

ATI Rage 128GL

Pass

ABIT / GF 256

GeForce 256

Pass

ASUS / V6600

GeForce 256

Pass

Creative / CT6940

GeForce 256

Pass

ASUS/2740

Intel I740

Pass

Cardex / I740

Intel I740

Pass

Leadtek / S900

Intel I740

Pass

Matrox / G100

MGA G100

Pass

Matrox / Mystique

MGA G200

Pass

Matrox / Millennium

MGA G400

Pass

4Matrox / Millennium II

Millennium

Pass

Leadtek / L2300

Permedia II

Pass

Leadtek / 3D S3500ZX

RIVA 128ZX

Pass

ASUS / V3400

RIVA TNT

Pass

Creative / TNT

RIVA TNT

Pass

DIAMOND / Viper V550

RIVA TNT

Pass

ELSA / ErazorII

RIVA TNT

Pass

Leadtek/ S320

RIVA TNT

Pass

STB/Velocity4400

RIVA TNT

Pass

TOP Solution

RIVA TNT

Pass

ABIT / GT2

RIVA TNT2

Pass

ASUS ? V3800

RIVA TNT2

Pass

Creative/TNT2

RIVA TNT2

Pass

Diamond / V770

RIVA TNT2

Pass

FLSA / ERAZOR III

RIVA TNT2

Pass

Leadtek / S325

RIVA TNT2

Pass

Leadtek / S320 II

RIVA TNT2

Pass

Leadtek / S325

RIVA TNT2 M64

Pass

ASUS / V3800

RIVA TNT2 Ultra

Pass

Creative / 3D Blaster

RIVA TNT2 Ultra

Pass

Diamond / V770

RIVA TNT2 Ultra

Pass

ASUS / V3000

RIVA128

Pass

Diamond / Riva128

RIVA128

Pass

Creative/ Savage4

S3 Savage 4

Pass

Diamond / Virge/GX2

S3 Virge/GX2

Pass

Cardex / 6326

SiS 6326

Pass

ENN YAH

SIS 6326

Pass

ENN YAH / Trident Blade 3D

Trident 9880

Pass

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! Memory Modules

Configuration:

CPU

Coppermine 667MHz ( FSB:133MHz )

 

 

 

 

 

 

 

 

OS

Windows NT4.0 Warkstation

 

 

 

 

 

 

 

 

 

 

BIOS

beh_qj.bin

 

 

 

 

 

 

 

 

 

 

VGA

DIAMOND RIVA TNT2 Ultra

 

 

 

 

 

 

 

 

 

 

HDD

Quantum fireball CX6400AT

 

 

 

 

 

 

 

 

 

 

Power Supply

Seventeam ST-301HR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PC-133

 

 

OK

 

 

 

Fail

 

 

1

2

 

3

4

1

2

 

3

4

 

 

 

 

 

Capacity :

128MB

 

 

 

 

 

 

 

 

 

CRUCIAL / MICRON / MT48LC8M8A2-75B / ECC / SPD

 

 

 

 

 

 

 

CRUCIAL/MICRON/MT48LC16M4A2-75B/ECC/SPD®

 

 

 

 

 

 

 

CRUCIAL/MICRON/MT48LC16M4A2-75B/SPD

 

 

 

 

 

 

 

BUFFALO/MICRON/MT48LC8M8A2/SPD

 

 

 

 

 

 

 

KINGMAX/KSV884T4A1A-07/SPD

 

 

 

 

 

 

 

TWINMOS / MOSEL / V54C365804VBT75 / SPD

 

 

 

 

 

 

 

 

Capacity :

64MB

 

 

 

 

 

 

 

 

 

CRUCIAL / MICRON / MT48LC8M8A2-75B / ECC / SPD

 

 

 

 

 

 

 

CRUCIAL/MICRON/MT48LC8M8A2-75B/ECC/SPD®

 

 

 

 

 

 

 

CRUCIAL / MICRON / MT48LC8M8A2-75B / SPD

 

 

 

 

 

 

 

APACER / SIEMEMS / HYB39S64800AT-7.5 /SPD

 

 

 

 

 

 

 

APACER / LGS / GM72V66841ET75 / SPD

 

 

 

 

 

 

 

 

Capacity :

32MB

 

 

 

 

 

 

 

 

 

CRUCIAL / MT48LC4M16A2-75B / SPD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PC-100

 

 

OK

 

 

 

Fail

 

 

1

2

 

3

4

1

2

 

3

4

 

 

 

 

 

Capacity :

256MB

 

 

 

 

 

 

 

 

 

TWINMOS / SEC / KM44S16030BT-GL /SPD

 

 

 

 

 

 

 

 

Capacity :

128MB

 

 

 

 

 

 

 

 

 

CRUCIAL / MICRON / MT48LC8M8A2-8E /ECC / SPD

 

 

 

 

 

 

 

TWINMOS / TOSHIBA / TC59S6408BFT-80 /ECC / SPD

 

 

 

 

 

 

 

CORSAIR / SEC / KM48S8030BT-GL /ECC /SPD

 

 

 

 

 

 

 

 

Capacity :

64MB

 

 

 

 

 

 

 

 

 

APM / APM / F886488CT-8 /SPD

 

 

 

 

 

 

 

CRUCIAL / MICRON / MT48LC8M8A2-8C /SPD

 

 

 

 

 

 

 

TOSHIBA / TOSHIBA / TC59S6416BFT-80 /SPD

 

 

 

 

 

 

 

BUFFALO / SEC / KM48S8030BT-GH /SPD

 

 

 

 

 

 

 

CORSAIR / SEC / KM48S8030BT-GL /ECC / SPD

 

 

 

 

 

 

 

GENUINE / NEC / D4564841G5-A80-9JF /SPD

 

 

 

 

 

 

 

GENERIC / SIEMENS / HYB39S64800AT-8 /SPD

 

 

 

 

 

 

 

TWINMOS / M.TEC / TBS6408B4E-8 /SPD

 

 

 

 

 

 

 

 

Capacity :

32MB

 

 

 

 

 

 

 

 

 

ARMAS / NEC / D4564163G5-A80-9JF /SPD

 

 

 

 

 

 

 

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