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6x86™ Processor
Cyrix Lab-Tested Motherboard Compatibility List

The motherboards listed below have been tested for 6x86 processor electrical and functional compatibility by the Cyrix Platform Verification Lab (PVL). This includes detailed application-based testing using WinstoneŽ 96 and 32 benchmark suites under various operating systems. Cyrix 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 ATC1020
Rev. 3		 2.8,3.3,3.52 AWD 12/09/96 PR166+ VX Chipset
A-Trend ATC-1000+ 2.8,3.3,3.52 AWD 09/30/96 PR166+ VX Chipset
A-Trend ATC-1040
Rev.D2		 2.8,3.3,3.52 AWD 12/19/96 PR166+  
AOpen AP5VM-3 2.8,3.3,3.52 AMI Ver. 2.50 PR166+ 430 VX Chipset
AOpen AP5T-2 2.8,3.3,3.52 AWD Ver. 1.20 PR166+ No PR133 support
430 TX chipset
AOpen AP5T-3 2.8,3.3,3.52 AWD Ver. 1.30 PR200+ 430 TX Chipset
AOpen AP5K-1 2.8,3.3,3.52 AWD 09/02/96 PR166+ 430 HX chipset
AOpen AP5T-1 2.8,3.3,3.52 AWD 11/16/96 PR166+ No PR133+support
430TX chipset
AOpen AP57-1 2.8,3.3,3.52 AWD Ver 1.10 PR166+ SiS5571 Chipset
Abit PR5 1.01 2.8,3.52 AWD 04/30/96 PR166+ Request 10A VRM
  Abit PN5 1.21 3.52, AWD 04/17/96 PR166+ Request 10A VRM
Abit IT5V 1.22 2.8,3.3 AWD 10/18/96 PR166+  
  Abit PR5R2 3.52, AWD 06/21/96 PR166+  
Asustek P/I-P55T2P4
3.0+		 2.8,3.3,3.52 AWD 04/15/96
Rev 0106+		 PR166+  
Asustek P/I-P55TVP4
1.5+		 2.8,3.3,3.52 AWD 05/10/96
Rev 0102+		 PR166+  
Asustek P/I-AP55TV
1.1+		 2.8,3.3,3.52 AMI 11/02/96
Rev 0105+		 PR166+ No PR133 Support
Biostar MB-8500TUD 2.8,3.3,3.52 AWD 5/9/97 PR166+ TX Chipset
Chaintech 5VLM 2.8, AWD 3/27/97 PR166+ VX Chipset
Chaintech 5VGM1 2.8 - 3.52 AWD 01/07/97+ PR166+ VX Chipset
Chaintech 51FM1 2.8 - 3.52 AWD 10/2/96+ PR166+ HX Chipset
Chaintech 51GM1 2.8 - 3.52 AWD 11/15/96 PR166+ VX Chipset
DFI 586STE 2.8,3.3 AWD 1/24/97 PR200+ SiS 5571 Chipset
DFI 586STC A+ 2.8,3.3, 3.52 AWD 12/10/96 PR200+ No PR120 support
  DFI 586IPC B 3.3,3.52 AWD 05/27/96 PR166+  
  DFI 586VPS Pro 3.3,3.52 AWD 06/15/96 PR200+  
  DataExpert DE-8661 3.52, AWD 09/03/96 PR166+  
ECS P5TX Rev 1.2 2.8, AWD 03/05/97 PR166+ TX Chipset
  ECS P5HX-B 1.0 3.52, AWD 04/01/96 PR166+  
  ECS P5VX-B 1.0 3.52, AWD 05/08/96 PR166+  
  ECS P5VX-A 1.0 3.52, AWD 05/08/96 PR166+  
  ECS TS54PAIO 1.4 3.3,3.52 PHX 02/06/96 PR166+  
  ECS TR5510 1.1 A 3.3, AWD 01/26/96 PR150+ No PR133+ support
  ECS P5HX-A 1.0 3.52, AWD 04/01/96 PR166+  
EFA P55T2SPIO 2.8,3.3,3.52 AWD 5/9/97
Ver. 2.10		 PR166+ On Board Sound
Card/HX Chipset
Epox P55-VP 2.8 AWD 01/19/97 PR200+ VIA580VP Chipset
Epox P55-VX 2.8,   PR166+ Triton VX Chipset
Epox P55BT 2.8,   PR166+ Triton TX Chipset
Epox P55-TV2 0.3 2.8, AWD 03/17/97 PR166+ VX Chipset
  FIC PA2006 3.52 AWD 08/27/96 PR200+  
  FIC PA2010 3.52, AWD 11/09/96 PR166+  
FIC PA2010+ 2.8, 3.3 AWD 1/24/97 PR200+ VIA 586VPX
Chipset
FIC PT2006 2.3 2.8,3.52 AWD 08/24/96 PR166+  
FIC PA2010 Rev.1.3 2.8, AWD 11/27/96 PR166+ VX Chipset
FIC VA-501 1.2 2.8, AWD 09/25/96 PR166+ VIA580VP Chipset
  FIC VT-501 Rev 1.1 3.52, AWD 01/03/97 PR166+ VX Chipset
  FIC PAC-2003 3.52, AWD 4/10/96 PR166+  
  FIC PT2200 2.1 3.52, AMI Ver.
TII 1.02		 PR166+  
FIC PA2005+ 2.8 - 3.52 AWD 2/17/97 PR200+ VIA 586VPX
Chipset
  FIC PA2002C 1.21 3.3,3.52 AWD 02/13/96 PR150+  
FIC PA2011 Rev. 2.1 2.8, AMI 7/15/97 PR166+ VIA580VP Chipset
FIC PA2007 2.8, AWD 6/25/97 PR166+ VIA 580VP2
FIC VA-502 2.9, AWD 5/13/97 PR200+ VIA 580VPX
FIC PT2011 Rev. 2 2.8, AMI 03/03/97 PR166+ No P120+ support
FIC PA2005
1.3.1		 2.8 - 3.52 AWD 07/24/96 PR200+  
Famous Tech Magic-Pro
MP-586VIP		 2.8,3.3,3.52 AWD 10/28/96 PR166+  
Freetech 586F63 T2 2.8,3.3,3.52 AWD 1/23/97 PR166+ VX Chipset
GCT 8ST 2.8,3.3,3.52 AWD 1/29/97 PR200+ SiS 5571 Chipset
GVC-BCM SQ576 A01 2.8, AWD 03/10/97 PR166+ TX Chipset
GVC-BCM FR550X02 2.8, AWD 03/14/97 PR166+ TX Chipset
  GVC-BCM SQ585A03 3.52, AWD 07/26/96 PR166+  
  GVC-BCM SQ593 1.0 3.52, AWD 07/05/96 PR166+  
GVC-BCM SQ591 B02 2.8,3.3 AWD 08/16/96 PR166+  
GVC-BCM SQ594 2.8, AWD 11/01/96 PR166+  
Giga-Byte GA-586HX
Rev. 1.51+		 2.8-3.52 AWD 08/21/96 PR166+  
Giga-Byte GA-586VX
Rev. 1.31		 2.8-3.52 AWD 02/27/97 PR166+  
Giga-Byte GA-586S
1.22C		 2.8,3.3,3.52 AWD 11/29/96 PR200+ SiS5571 Chipset
Global GCT61V
Rev. 0.2		 2.8,3.3,3.52 AWD 10/02/96 PR200+  
Holco HOT559 2.8, AWD 10/23/96 PR166+  
Holco HOT-565 1.4 2.8, AWD 2/26/97 PR166+ TX Chipset
Holco HOT557 2.0 2.8, AWD 12/30/96 PR166+ VX Chipset
Holco HOT557 1.4 2.8-3.52 AWD 06/19/96 PR166+  
Holco HOT555 1.4 2.8-3.52 AWD 06/19/96 PR166+  
Holco HOT555 3.0 2.8, AWD 02/14/97 PR166+ VX Chipset
  Hsin-Tech M530 3.52, AWD 10/18/96 PR166+ No PR133 support
  Hsin-Tech MS535 3.52, AWD 10/18/96 PR166+  
Iwill P55TV/TVS 2.8, AWD 10/23/96 PR166+  
Micro-Star MS-5142 2.8,3.3,3.52 AWD PR166+ SiS 5513 Chipset
Micro-Star MS-5130
Ver. 1.0 or higher		 2.8,3.3,3.52 AWD WJ76 PR166+ SiS 5513 Chipset
Micro-Star MS-5144
Ver. 1 or higher		 2.8,3.3,3.52 AWD W5144MS1.0
2/13/97		 PR200+ SiS5571 Chipset
Micro-Star MS-5145
Ver. 1 or higher		 2.8,3.3,3.52 AWD W5145MS1.0
3/19/97		 PR200+ TX Chipset
Micro-Star MS-5146
Ver. 1.0 or higher		 2.8,3.3,3.52 AWD W5146MS1.0
3/19/97		 PR200+ SiS 5571 Chipset
Micro-Star MS-5147
Ver. 1.0 or higher		 2.8,3.3,3.52 AWD PR200+ SiS 5571 Chipset
Micro-Star MS-5149
Ver. 2.1 or higher		 2.8,3.3,3.52 AMI AI79 3/28/97 PR200+ VX Chipset
Micro-Star MS-5137
Ver. 1.0 or higher		 2.8,3.3,3.52 AWD PR166+ VX Chipset
  Mitac PH5400V 1B 3.52, AWD 09/09/96 PR166+  
  Mitac PB5400T 3.52, AWD 07/04/96 PR166+ No PR133 support
  Mitac PV5400T 4A 3.52, AWD 07/04/96 PR166+ No PR133 support
Mitac PH5400V 1B 2.8,3.52 AWD 09/09/96 PR166+ No PR133 support
Mtech R534 E 2.8,3.3,3.52 AWD 10/24/96 PR200+  
Mtech R528 CU 2.8,3.52 AWD 06/13/96 PR166+  
  Mtech R528WP CU 3.3,3.52 AWD 06/13/96 PR166+ No PR133 support
  Mtech R529WP B7 3.3,3.52 AWD 05/17/96 PR166+  
Mtech R533WP H7 2.8,3.3,3.52 AWD 09/20/96 PR166+  
  Mtech R526/W2 1.0 3.3, AWD 01/18/96 PR166+ No PR133 support
  Octec Rhino6VX
Rev. 1.31		 3.3 & 3.52 AWD 096-084
12/9/96		 PR166+  
Octec Rhino10VX
Rev. 1.03		 2.8,3.3,3.52 AWD 097-20
4/8/97/97		 PR166+  
Octec Rhino9HX
Rev. 1.4		 2.8,3.3,3.52 AWD 097-017
3/17/97		 PR166+ No PR133 support
QDI P51430VX 2.0 and 3.0
Explorer 1		 2.9,3.3,3.52 AWD PR166+ Jumpered MB
No PR133+ Support
  QDI P51430HX
Frontier		 2.9,3.3,3.52 AWD 08/05/96 PR166+ Jumpered MB
Soltek SL-54A5 a4 2.8,3.3,3.52 AWD 12/20/96 PR200+  
  Soltek SL-52D2 3.3,3.52 AWD 7/24/96 PR166+  
Soltek SL-53A-D 3.3,3.52 AWD 7/24/96 PR166+  
Soltek SL-53A5-D 2.8,3.3,3.52 AWD 11/4/96 PR166+  
Soyo SY5EA 2.8 AWD 4/17/97 PR166+  
Soyo SY5VC5 H 2.8, AWD 02/17/97 PR166+ VX Chipset
Spring ST586 P561 2.8,3.52 AWD 06/19/96 PR166+  
TMC T15TH Rev 1.2 2.8, AWD 11/18/96 PR166+ No PR133 support
  TMC AI5TV 0.1 3.52, AWD 04/26/96 PR166+ No PR150 support
TMC TI5TV 3.0 2.8,3.52 AMI 10/11/96 PR166+  

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