Tyan S1686D (Tahoe Plus ATX)
chipChipset
cpuCPU socket
speedFSB speed
66MHz
moboForm factor
ATX (max 305 x 244 mm)
dimDimensions
305mm x 244mm
chipCache
None/Integrated in the CPU
ramMax RAM size
1GB
ramRAM type
72-pin EDO
pwrPSU connector
connI/O ports
1x 
Floppy interface
2x 
IDE interface
1x 
PS/2 keyboard
1x 
PS/2 mouse
1x 
Parallel
2x 
Serial
2x 
USB 1.x
cardExpansion slots
3x 
16-bit ISA
5x 
32-bit PCI

Also known as:

  • Tyan S1686D (Tahoe Plus ATX)

Known issues:

  • DALLAS RTC coin cell empty

The motherboard's Real-Time Clock (RTC) chip contains a coin cell that may have drained, causing the loss of CMOS settings. This can result in an inability to save settings, causing system instability or failure to boot. To fix this, the RTC chip can be replaced with an equivalent or repaired by cutting into it and soldering on a new external coin cell holder. Replacement guides are available at https://github.com/necroware/nwX287 or https://github.com/necroware/nw12887, depending on the actual chip used.

Last updated 2022-07-27T14:12:12Z
Score is 9.3/10
6 files available

Vendor: Award [1 entry]

POST string
Note
Core Ver.
BIOS Ver.
Last edit
POST string
04/22/97-i440FX-2A69HT5AC-00
Note
Core version
4.51PG
BIOS version
Last edit
pwr 2022-04-20

Vendor: AMI [5 entries]

POST string
Note
Core Ver.
BIOS Ver.
Last edit
POST string
61-0100-006285-00111111-071595-440FX-2TYKD001
Note
PCB rev 5
Core version
071595
BIOS version
Last edit
pwr 2022-04-20
POST string
61-0100-006285-00111111-071595-440FX-2TYKD001
Note
PCB below rev 5
Core version
071595
BIOS version
Last edit
pwr 2022-04-20
POST string
61-0100-006285-00111111-071595-440FX-2TYKD001
Note
Core version
071595
BIOS version
Last edit
pwr 2022-04-20
POST string
61-0100-006285-00111111-071595-440FX-2TYKD001
Note
Core version
071595
BIOS version
Last edit
pwr 2022-04-20
POST string
61-0100-006285-00111111-071595-440FX-2TYKD001
Note
Core version
071595
BIOS version
Last edit
pwr 2022-04-20
drv 1 driver available
Name
Version
OS support
Size
Filename
Name
Version
3.00
OS support
1987os2 OS/2 Warp 3.0 1993win Windows NT 3.5 1995win Windows 95 1995win Windows NT 3.51 1995win Windows NT 4.0
Size
unknown
Filename
doc 3 board documents available
Language
Release date
File
Last edit
Language
English
Release date
File
Last edit
pwr 1970-01-01
Language
English
Release date
File
Last edit
pwr 2022-04-20
Language
English
Release date
File
Last edit
pwr 2022-04-20
chipdoc 5 chip documents available
Chip
Language
Release date
File
Last edit
Chip
Language
English
Release date
File
Last edit
pwr 2022-08-14
Chip
Language
English
Release date
File
Last edit
pwr 2023-08-20
Chip
Language
English
Release date
File
Last edit
pwr 2022-08-14
Chip
Language
English
Release date
File
Last edit
pwr 2022-08-27
Chip
Language
English
Release date
File
Last edit
pwr 2023-08-20

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