[comp.sys.ibm.pc] Western Digital Motherboards - WDM2

simon@ms.uky.edu (Simon Gales) (04/02/89)

I recently bought an AT that uses the new integrated Western Digital
motherboard WDM2, and wrote a short review on it for others who may be
considering buying one.

Hit 'n' now it you're not interested...


Motherboard: Western Digital WDM2
Computer:    DataStor 286-12

This 6-layer motherboard has many built-in features/controllers:
	12.5 or 6 mhz operation, norton SI = 13.2 computing index
	MFM Dual Hard/Floppy disk controller 
		- 1:1 interleave, 32k hardware cache
	Paradise EGA controller  
		- does normal EGA stuff plus a 640x480x16 color mode.
	2 Serial ports and 1 Parallel port 
	ROM shadowing support in BIOS or hardware
	Ps/2 Mouse Port
	Coprocessor socket

Phoenix Bios - Setup in ROM - 47 hard disk types supported
			    - boot up at 12.5 or 6 mhz

SIMM memory (256k or 1meg, 120ns) is used on the motherboard.
Possible configurations are:
	2 256k SIMMs
	4 256k SIMMs
	2 1meg SIMMs
	2 1meg SIMMs, 2 256k SIMMs
	4 1meg SIMMs
256k SIMMs cost around $150, 1meg SIMMs are about $450.

Four expansion slots (3 AT slots, 1 XT slots) are on the motherboard.

PCDOS 4.01, Microsoft C, Codeview, Windows & Word, Symphony, Kermit, 
Pibterm, Turbo C, Turbo Pascal, Falcon/AT, and many other programs
work without a problem.

A tech manual is available from WD, drivers and diagnostics are included,
updates are on WD's BBS.  I'm not sure, but using 80ns SIMMs might improve
performance a little.

A LIM EMS 4.0 driver was included, but this driver simple emulated EMS
by using extended memory - it is not as fast as a real EMS card, and is
much easier to crash.

-- 
/------------------------------------------------------------------------\
  Simon Gales@University of Ky
  {rutgers, uunet}!ukma!simon  -  simon@ms.uky.edu  -  simon@UKMA.BITNET

mvolo@ecsvax.UUCP (Michael R. Volow) (04/03/89)

How well does this computer work compared to other ATs that you have
know, heard, or read about?

M Volow, VA Medical Center, Durham, NC 27705
mvolo@ecsvax.UUCP           919 286 0411