Cyrix Online - 6x86 Processor Motherboard Compatibility List

6x86™ Processor
Manufacturer Tested Motherboard Compatibility List

The motherboards listed below have been tested by their respective manufacturers and stated by those manufacturers to be compatible with the Cyrix 6x86 processor. Cyrix has not tested these motherboards and does not warranty, guarantee or provide support for these motherboards. Contact the manufacturers directly for technical information.

Motherboard Hotline (1-800-340-7967)
Make integrating your Cyrix processor extra easy by calling our toll-free Motherboard Hotline. Our staff will tell you where to find specific motherboards listed on our 6x86™ motherboard compatibility list.

Note:The fastest PR-rating for each motherboard is listed. It can be assumed that it supports all slower P ratings down to PR-120+, unless otherwise noted.

Motherboards with a

comply with Cyrix's 6x86 2.8V specification.

Manufacturer Model Voltage BIOS P-Rating Comments

A-Trend ATC2000
Rev.1 2.8,3.3,3.52 AWD 8/15/96
Ver. 1.1 PR166+ HX Chipset

A-Trend ATC2000
Rev.3 2.8,3.3,3.52 AWD 8/15/96
Ver. 1.2B4 PR166+ HX Chipset

A-Trend ATC5000 2.8,3.3,3.52 AWD 1.0, 3/31/97 PR166+ TX Chipset

AOpen AP53-1 2.8,3.3,3.52 AMI Ver. 2.B0 PR120+ 430 HX chipset

AOpen AX5T 1 2.8,3.3,3.52 AWD Ver. 1.10 PR200+ Intel 430TX Chipset
No PR133+Support

AOpen AX5T-2 2.8,3.3,3.52 AWD Ver. 1.20 PR200+ 430 TX chipset

Abit AR5 1.0 3.5 AWD 4.51PG
09/10/96 PR200+

Abit PN5 1.4 3.3,3.52 AWD 4.51PG
09/10/96 PR166+

Abit IT5V 1.0 3.3,3.5 AWD 4.51PG
09/10/96 PR200+ Jumperless

Abit SM5 1.0 3.3,3.5 AWD 4.51PG
09/10/96 PR200+

Abit PR5-R2 2.11 3.3,3.5 AWD 4.51PG
09/10/96 PR200+ Request Phaselock
Generator for PR200+

Abit PR5-B 1.2 3.3,3.5 AWD 4.51PG
09/10/96 PR200+ Larger Heatsink
for PR-200

Abit PR5 1.2 3.3,3.5 AWD 4.51PG
09/10/96 PR200+

Atima MBP55FGITX 2.8,3.3,3.52 AMI 4/18/97 PR200+

Atima MB586FGCVX
0K 3.3,3.52 AWD 4.51PG
07/02/97 PR166+

Atima MB586FGIVX
256 3.3,3.52 AWD 4.51PG
07/02/96 PR166+

Atima MB586FGVXD
0K 2.8,3.3,3.52 AWD 4.51GP
10/20/96 PR166+

Atima MB586FGTVX
256 2.8,3.3,3.52 AWD 4.51PG
10/20/96 PR200+

Atima MB586FGTVX
512 2.8,3.3,3.52 AWD 4.51PG
10/20/96 PR200+

Atima MBP55FGUS
512 2.9,3.3,3.52 AWD 4.51PG
10/20/97 PR200+

Azza PT-5T 1.4V 2.8,3.3,3.52 AWD 12/4/96 PR200+

Azza PT-5IVH 2.8,3.3,3.52 AWD 01/31/97 PR200+

Azza PT-5IH 1.5 2.8,3.3,3.52 AWD 10/04/96 PR166+

Azza PT-5IT 2.8,3.3,3.52 AWD PR200+

Biostar MB-8500TTD 2.8,3.3,3.52 AMI TVX
09/17/96 PR166+ TX Chipset

Biostar MB-8500SUC 2.8,3.3,3.52 AMI PR200+ SiS Chipset

Biostar 8500SUC 2.8,3.3,3.52 AMI 5/03/97 PR166+ VX Chipset

Biostar MB-8500TVD 2.8,3.3,3.52 AMI 5/19/97 PR166+ VX Chipset

Biostar MB-8500TVX 2.8,3.3,3.52 AMI3/25/97 PR166+ VX Chipset

Biostar MB-8500TUC 2.8,3.3,3.52 AMI 5/30/97 PR166+ HX Chipset

Chaintech 5VGM0 2.8 - 3.52 AWD 09/20/96+ PR166+ VX Chipset

Chaintech 5IGM0 3.3, 3.52 AWD 08/07/96+ PR166+ VX Chipset

DFI 586VPS Pro 2.8,3.3,3.52 AWD 06/15/96 PR200+ Use 2.9V setting

ECS P5VX-B 1.0 3.3,3.52 AWD 06/13/96 PR166+

EFA P5TVX-AT 3.3, 3.52 AWD 4/24/97
Ver. 1.07 PR166+ VX Chipset

EFA P5TSVX-ATX 2.8,3.3,3.52 AWD 4/24/97
Ver1.04 PR166+ On Board Sound
Card(optional)VX Chipset

EFA P55T2PIO 2.8,3.3,3.52 AWD 4/29/97
Ver. 2.10 PR166+

EFA P55TPIO-B 3.3, 3.52 AWD 8/31/96
Ver.2.06 PR166+ No PR133+ Support
FX Chipset

EFA P55TPIO 3.3, 3.52 AWD 8/31/96
Ver.1.3 PR166+ No PR133+ Support
FX Chipset

EFA P5V580-AT
Rev.A 2.8,3.3,3.52 AWD2/24/97
Ver 1.02 PR200+ VIA 580 Chipset

FIC PT2006 1.3 3.3, 3.52 AWD 8.03J801 PR166+

FKI SL586VP 2.8,3.3,3.52 AWD 01/10/97
Ver. B PR200+

FKI SL-586VT2 2.8,3.3,3.52 AWD 11/11/96
Ver. B PR200+

Freetech 586F62T 2.8,3.3,3.52 AWD 02/26/97 PR166+ HX Chipset

Freetech P5F76/Falcon 2.8,3.3,3.52 AWD 1/23/97 PR166+ VX Chipset

Freetech P5F72/Eagle 2.8,3.3,3.52 AWD 03/07/97 PR166+ VX Chipset

Freetech P5F78/Condor 2.8,3.3,3.52 AWD 01/20/97 PR166+ TX Chipset
Switching VRM

Freetech P5F65/Seahawk 2.8,3.3,3.52 AWD 12/11/96 PR166+ SiS 5596 Chipset

Giga-Byte GA-586ATVS 2.8,3.3,3.52 AWD 3/27/97 PR200+

Giga-Byte GA-586ATV
Rev. 2A 2.8,3.3,3.52 AWD 01/12/97 PR166+

Giga-Byte GA-586ATV
Rev. 3B 2.8,3.3,3.52 AWD 03/25/97 PR166+

Giga-Byte GA-586TX
Rev. 3.02 2.8,3.3,3.52 AWD 03/25/97 PR166+ No PR133+ Support

Holco HOT553 1.1 3.3, AWD 06/12/96 PR166+ Request VRM

Holco HOT557 1.32 3.3,3.52 AWD 08/15/96 PR166+

Jetway J-656VXD 2.8,3.3,3.52 AWD 4.51PG
02/17/97 PR200+

Jetway J-658A 2.8,3.3,3.52 AWD 4.51PG
01/28/97 PR200+

Micro-Star MS-5143 Ver. 2 2.8,3.3,3.52 AMI AI79 3/28/97 PR166+ VX Chipset

Micro-Star MS-5136
Ver 1.2 or higher 2.8,3.3,3.52 AWD WI7A 11/6/96 PR166+ VX Chipset

Micro-Star MS-5129
Ver.1.2C 2.8,3.3,3.52 AWD W17B 1/13/97 PR166+ VX Chipset

Micro-Star MS-5128
Ver. 1.1 or higher 3.3,3.52 AWD WH79/AMI AH77 PR166+ HX Chipset

Micro-Star MS-5148
Ver. 1.0 or higher 2.8,3.3,3.52 AWD W548MS2.0
4/24/97 PR200+ TX Chipset

Mtech R529WP 3.3,3.52 AWD Rev. F_7
08/20/96 PR166+

Mtech R533WP B 3.3,3.52 AWD Rev. H_7
09/20/96 PR200+ VX Chipset

Mtech R552WP 3.3, 3.52 AWD Rev. F_7
08/20/96 PR200+ VX Chipset

Nycom 5ST5 2.8,3.3,3.52 Award 2/14/97 PR200+ SIS 5571 Trinity Chipset

Nycom 5TX5 V1.1 2.8,3.4,3.52 Award 4/29/97 PR166+ Intel 430TX Chipset w/USB Ports
Switching Voltage Regulator

Nycom 5mx5 V1.2 2.8,3.3,3.52 AMI 4/8/97 PR166+ Intel 430VX Chipset

Nycom 5SX5 V1.0 2.8,3.3,3.52 AMI 5/14/97 PR166+ Intel 430VX Chipset

Octec Rhino15
Rev. 1.1 2.8,3.3,3.52 AWD 097-015 5/1/97 PR166+ Intel TX Chipset

Octec Rhino12
Rev. 1.0 2.8,3.3,3.52 AWD 097-021
4/24/97 PR200+ VIA Apollo
VP-1 chipset

Octec Rhino8
Rev. 1.2 3.3,3.52 AWD 097-004
1/5/97 PR166+ Opti Viper M chipset

Octec Rhino6VX
Rev. 1.41 3.3,3.52 AWD 097-011
2/27/97 PR166+

QDI P51430VX230LC
Explorer 4 2.8,3.3,3.52 AWD PR200+

QDI P51430TX
Titanium 1 2.8,2.9,3.3,3.52 AWD PR200+ SpeedEasy-Jumperless MB

QDI P51430TX/MATX B
Titanium3B 2.8,2.9,3.3,3.52 AWD PR200+

QDI P51430TX/MATX
Titanium 3 2.8,2.9,3.3,3.52 AWD PR200+ SpeedEasy-Jumperless MB

QDI P51430HX-280
Frontier 2 2.9,3.3,3.52 AWD PR166+ Jumpered MB

QDI P51430VX/ATX
Explorer ATX 2.8,2.9,3.3,3.52 AWD PR200+ Jumpered MB

QDI P51430VX-280DM
Explorer 3 2.8,2.9,3.3,3.52 AWD PR200+ SpeedEasy-Jumperless MB

QDI P51430VX-250DM
Explorer 2 2.9,3.3,3.52 AWD PR200+ SpeedEasy-Jumperless MB

QDI P51430VX-250DM
Explorer 2 2.9,3.3,3.52 AWD PR200+ Jumpered MB

QDI P51430TX B
Titanium 1B 2.8,2.9,3.3,3.52 AWD PR200+ SpeedEasy-Jumperless MB

Soltek SL-55A2 2.8,3.3,3.52 AWD 1/24/96 PR200+

Soltek SL-54A2-S 2.8,3.3,3.52 AWD PR200+

Soltek SL-54A5-S a4 2.8,3.3,3.52 AWD 3/7/97 PR200+

Soltek SL-54P5 2.8,3.3,3.52 AWD 5/7/97 PR200+ TXChipset/AT

Soltek SL-54A2 2.8,3.3,3.52 AWD 12/20/96 PR200+

Soltek SL-56A5 2.8,3.3,3.52 AWD 5/7/97 PR200+ TX Chipset/ATX

BIOS ABBREVIATIONS: AWD=Award, PHX=Phoenix, AMI=American Megatrends Inc.