Promise (PTI) PDC20630 (VLB IDE Controller)
Logs See all cards with this chip
dateType
IDE ctrl.
No additional family specs
doc No chip documents available
2 files available
Version
Note
File
Logs
Version
v3.3
Note
Promise VG4 BIOS 1995-06
File
Logs
Version
v116
Note
EIDE2300Plus LBA BIOS 1995-11
File
Logs
drv 5 drivers available
Name
Version
OS support
Size
Filename
Name
Version
3.3
OS support
MS-DOS NetWare Server 3 NetWare Server 4 OS/2 2.x OS/2 Warp 3.x SCO Unix - OpenServer Windows 9x
Size
343.7KB
Filename
Name
Version
2.60
OS support
OS/2 2.x Windows 3.1x Windows NT 3.1
Size
130.8KB
Filename
Name
Version
3.31
OS support
MS-DOS OS/2 2.x OS/2 Warp 3.x Windows 3.1x Windows 9x Windows NT 3.1 Windows NT 3.5x
Size
339.6KB
Filename
Name
Version
3.3
OS support
MS-DOS NetWare Server 3 NetWare Server 4 OS/2 2.x OS/2 Warp 3.x SCO Unix - OpenServer Windows 3.1x Windows 9x Windows NT 3.1 Windows NT 3.5x
Size
312.1KB
Filename
Name
Version
2.6
OS support
MS-DOS NetWare Server 3 NetWare Server 4 OS/2 2.x Windows 3.1x Windows NT 3.1
Size
227KB
Filename
notes Notes

The Promise 20230 & 20630 chips are very similar.

20630 offers:

  • 2 IDE ports over the single port on the older chip
  • Chip can talk WDMA to storage, but transfers from the chip to the PC are still PIO
  • IRQrdy modes depend on the controller implimentation
  • improved performance when everything else is the same

Drivers & BIOS are compatable between the Promise 20230 & 20630, but the WDMA modes require the 20630 chips.

Promise 20230 & 20630 chips are supported by XTide Universal BIOS 386L module in a beta state as of XUB r629

Last updated 2025-01-28T03:02:39Z
image1 Image 1 of 1 (Eric Voirin (oerg866))

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