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Conference giadev::decstation

Title:DECstation PC Conference
Notice:register note 2, see notes 3 & 4
Moderator:TARKIN::LININD
Created:Tue Jan 10 1989
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:7470
Total number of notes:34994

7350.0. "<< Mylex : DE205 conflict on DECpc XL566 >>" by POBOXA::COMMO (I&#039;ll find no bug before its time!) Tue Feb 11 1997 14:43

Need some help on the following problem.  I've already searched this file and
the ASK_SSAG and ETHERWORKS notesfiles.  Nothing useful found there.

Installing the KZPSC-XZ (Mylex) SCSI controller interferes with the Network
card.  The symptoms are that NT appears to comes up fine, but no nodes are seen
in the browser and pinging any external node times out. 

The ControlPanel/Services says all network services are running and there are
node warnings in the event log. 

Any advice greatfully accepted!
- norm


Base Info
---------
DECpc XL566
40Mb Ram
WIndows NT 4.0, Service Pack 2 (no hotfixes)

	       	
I/O slots (described from top to bottom)
---------------------------------------
PCI1: Diamond Viper Graphics Card
PCI2: KZPSC-XA (Mylex)
PCI3: Adaptec 2940 SCSI
ISA: empty
ISA: empty
ISA: SoundBlaster AWE32
ISA: DE205 (Etherworks 3)

FW Versions
-----------
Bios 1.02
DEC Pentium 1.01
PCI V2.0, 20-3.01.04
2940  ?????? (missed it on the way up)
SWXCR BIOS 1.02
      FW   2.19

CMOS Settings
-----------------------
Comm1: IRQ4  3F8 -> 3FF
Comm2: IRQ3  2F8 -> 2FF
LPT1:  IRQ7  378 -> 37A

NT Settings (from various Property pages)
-----------------------------------------
DE205 (network adapter)
	IRQ5
	Base Addr: 300
	I/O Range  = E000->E00F
	Base Mem Addr: D0000
	Mem mode: 2

Symbios (internal SCSI)
	IRQ11
	I/O Range  = E100->E1FF
	Mem. Range = 10401000 -> 10401FFF

Adaptec 2940 (SCSI controller)
	IRQ10 (had to be manually set in CMOS or wouldn;t work)
	I/O Range  = E000->E0FF
	Mem. Range = 10400000 -> 10400FFF

Mylex/KZPSC (RAID controller)
	IRQ14
	I/O Range  = E200->E2FF


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Name
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7350.1<< More puzzling behavior - but it gets me out of the woods! >>POBOXA::COMMOI&#039;ll find no bug before its time!Tue Feb 11 1997 17:1919
Well... It gets more interesting.  I "turned off" the Mylex by going to the
CMOS screen and disabling PCI2; but I left the other parameters as set as they
were (interrupt = 14, bus mastering = enabled, etc)

I booted NT and sure enough I had the network card back and I wrote the top
level note of this thread.  At this point I figured that my RAID set was
nonexistent.  

On a previous boot I had used DiskAdministrator to format the RAID set to NTFS
and to label the volume.  On this boot I brought up DiskAdminstrator to move
around some disk letters.  Lo and behold there was my RAID set.  So even though
PCI2 was "disabled" I guess it was only for purposes of booting since I didn't
see the Mylex configuration during boot. 

This is confusing since I don't work on PCs at this level on a daily basis.
Can anyone clear up the confusion and unwind the mystery?

Thanks,
- norm