MR BIOS: Difference between revisions

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!Version
!Version
!Earliest release date
!Earliest known release date
!Status
!Status
!First seen on
!First seen on
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|{{Assumed}}
|{{Assumed}}
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|May possibly exist assuming by the naming scheme, currently no ROMs are known.
|Likely exists assuming by the naming scheme, currently no ROMs are known.
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|{{Assumed}}
|{{Assumed}}
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|May possibly exist assuming by the naming scheme
|Likely exists assuming by the naming scheme
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|Available
|Available
|[https://theretroweb.com/motherboards/s/orchid-technolog-superboard-486 ORCHID TECHNOLOGY SUPERBOARD 486]
|[https://theretroweb.com/motherboards/s/orchid-technolog-superboard-486 ORCHID TECHNOLOGY SUPERBOARD 486]
|Earliest known version with the blue background setup utility.
|Earliest known version with the light blue background setup utility.
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| rowspan="5" |Assumed
| rowspan="5" |Assumed
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| rowspan="5" |May possibly exist assuming by the naming scheme
| rowspan="5" |Likely exist assuming by the naming scheme
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| rowspan="6" |Assumed
| rowspan="6" |Assumed
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| rowspan="6" |May possibly exist assuming by the naming scheme
| rowspan="6" |Likely exist assuming by the naming scheme
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|Available
|Available
|[https://theretroweb.com/motherboards/s/bek-tronic-bek-3739 BEK-tronic BEK-3739] and [https://theretroweb.com/motherboards/s/edom-wintech-ma013-x Edom/WinTech MA013-X]
|[https://theretroweb.com/motherboards/s/bek-tronic-bek-3739 BEK-tronic BEK-3739] and [https://theretroweb.com/motherboards/s/edom-wintech-ma013-x Edom/WinTech MA013-X]
|Both motherboards support the same ROM upgrade (V084B4BH)
|Earliest known version with the blue background setup utility. Both motherboards support the same ROM upgrade (V084B4BH)
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|V1.61
|February 5, 1994
|Available
|[https://theretroweb.com/motherboards/s/ibm-eteq-486slc2 IBM ETEQ 486SLC2]
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|V1.62
| rowspan="3" |Early-1994
| rowspan="3" |Assumed
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| rowspan="3" |Likely exist assuming by the naming scheme
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|V1.63
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|V1.64
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|V1.65
|April 18, 1994
|Available
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* [https://theretroweb.com/motherboards/s/cache-computers-cache-bat-486-model-319 Cache Computers CACHE BAT 486 (Model 319)]
* [https://theretroweb.com/motherboards/s/dd-and-tt-enterpri-dt-423s4l-revision-c2-an DD & TT Enterprise DT-423S4L (Revision C2 and earlier)]
* [https://theretroweb.com/motherboards/s/dfi-486-33-50uce,-486dx2-50uce DFI 486-33/50UCE, 486DX2-50UCE]
* [https://theretroweb.com/motherboards/s/fic-386sc-rev-a2 FIC 386SC REV A2]
* [https://theretroweb.com/motherboards/s/ibm-xt-286-type-5162-62x1168 IBM XT 286 (TYPE 5162) (62X1168)]
* [https://theretroweb.com/motherboards/s/infinity-multipro-vii-386dxv Infinity Multipro VII-386DXV]
* [https://theretroweb.com/motherboards/s/mitac-trigon-pwa-286c MiTAC/Trigon PWA-286C]
* [https://theretroweb.com/motherboards/s/msi-ms-3124 MSI MS-3124]
* [https://theretroweb.com/motherboards/s/octek-panther-iv Octek PANTHER IV]
* [https://theretroweb.com/motherboards/s/pcchips-m321-rev.-2.x PCChips M321 (rev. 2.x)]
|9 ROMs for this BIOS version are known, with almost all of them (except one which is unavailable) released on the same day. Some of these motherboards support the same ROM upgrade.
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|V1.66
|October 31, 1994
|Available
|[https://theretroweb.com/motherboards/s/octek-hippo-dca-1-486-rev.-1.0 Octek HIPPO DCA 1 486 REV. 1.0]
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|V1.67
|November 23, 1994
|Available
|[https://theretroweb.com/motherboards/s/alaris-leopard-rev-a Alaris Leopard REV A]
|Last known version of MR BIOS V1.x
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Revision as of 11:40, 19 July 2024

MR BIOS (short for Microid Research BIOS), unofficially and commonly nicknamed Mr. BIOS, is a personal computer BIOS developed by Microid Research Inc. (MRI) from 1989 to 1999. It was mostly offered as a third-party BIOS upgrade for existing motherboards of various brands. However, it was occasionally also used as the default BIOS on some motherboards.

Microid Research Inc. (MRI)

Microid Research Inc., abbreviated MRI, was a software development company founded in 1989 and incorporated in 1992 in Santa Clara, California. It was acquired by Unicore Software in the mid-1990s (most likely in 1995 or 1996) and relocated to North Andover, Massachusetts (where Unicore was located). Unicore was then acquired by Award Software in 1997, which then merged with Phoenix Technologies the following year.

Versions

The below is a list of known and possible versions of MR BIOS. Known versions with available ROMs are marked as "Available", while ones without are marked "Confirmed". Assumed possible versions are marked "Assumed".

Version Earliest known release date Status First seen on Notes
V1.0A November 18, 1990 Available Two OPTi 82C283 chipset motherboards (QDI P386SX/25 PW and Shuttle HOT-306). Both motherboards support the same ROM upgrade (V007B314)
V1.0B Late-1990(?) Assumed Likely exists assuming by the naming scheme, currently no ROMs are known.
V1.0C Late-1990 Confirmed Unknown OPTi 82C481 chipset motherboard, labelled "KMC486-25" Only known instance of V1.0C so far. Currently no ROM dumps are available.
V1.0D Late-1990 or early-1991(?) Assumed Likely exists assuming by the naming scheme
V1.0E April 2, 1991 Available Cache Computers CACHE BAT 486 (Model 319) motherboard Last known version using the V1.0x naming scheme. The ROM has no visible Microid Research or MR BIOS branding, so it was most likely licensed to the Cache Computers for use.
V1.26 October 27, 1991 Available TAM33-P1/TAM40-P1 motherboard Earliest known version under the new naming scheme.
V1.27 Late-1991 or early-1992(?) Assumed Likely exist assuming by the naming scheme
V1.28
V1.29 January 28, 1992 Available ORCHID TECHNOLOGY SUPERBOARD 486 Earliest known version with the light blue background setup utility.
V1.30 Early or mid-1992 Assumed Likely exist assuming by the naming scheme
V1.31
V1.32
V1.33
V1.34
V1.35
V1.36 July 15, 1992 Available Octek PANTHER II
V1.37 Mid-1992 Assumed Likely exist assuming by the naming scheme
V1.38
V1.39
V1.40 September 9, 1992 Available ECS 8517 V3.3
V1.41 October 14, 1992 Available Octek Jaguar IV-C (Rev 1.6)
V1.42 Late-1992 or early-1993 Assumed Likely exist assuming by the naming scheme
V1.43
V1.44
V1.45 March 16, 1993 Available Octek HIPPO VL+
V1.46 Mid-1993 Assumed Likely exist assuming by the naming scheme
V1.47
V1.48
V1.49
V1.50
V1.51 August 6, 1993 Available Octek JAGUAR V 386 (rev 2.0)
V1.52 August 20, 1993 Available A-Trend 4GPV3, 4GPV3.1 and MECER CORPORATION B860 (REV. A) All three motherboards support the same ROM upgrade (V080B425)
V1.53 November 20, 1993 Available Octek HIPPO OP
V1.54 Late-1993 or early-1994 Assumed Likely exist assuming by the naming scheme
V1.55
V1.56
V1.57
V1.58
V1.59
V1.60 January 26, 1994 Available BEK-tronic BEK-3739 and Edom/WinTech MA013-X Earliest known version with the blue background setup utility. Both motherboards support the same ROM upgrade (V084B4BH)
V1.61 February 5, 1994 Available IBM ETEQ 486SLC2
V1.62 Early-1994 Assumed Likely exist assuming by the naming scheme
V1.63
V1.64
V1.65 April 18, 1994 Available 9 ROMs for this BIOS version are known, with almost all of them (except one which is unavailable) released on the same day. Some of these motherboards support the same ROM upgrade.
V1.66 October 31, 1994 Available Octek HIPPO DCA 1 486 REV. 1.0
V1.67 November 23, 1994 Available Alaris Leopard REV A Last known version of MR BIOS V1.x
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Last modified
This page was last edited on 19 July 2024, at 11:40.