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Conference mvblab::alphaserver_4100

Title:AlphaServer 4100
Moderator:MOVMON::DAVISS
Created:Tue Apr 16 1996
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:648
Total number of notes:3158

569.0. "3 Heads on a 4100" by WASHDC::RKLING () Mon Apr 14 1997 12:02

Customer wants to have three heads on an AlphaServer 4100.  I know the AS4100
doesn't support the high end graphics cards above the PowerStorm 4D20 cards.
(electrical reasons I beleive) However, is there any limitations on putting
three 3D30s, three 4D20s, or even 3 of the Trio cards in a single 4100?  The
operating system is OpenVMS which supports three heads on our workstations.

Thanks for the help.

Roy
T.RTitleUserPersonal
Name		DateLines
569.1MAY21::CUMMINSThu Apr 17 1997 09:4328
    Since no reply to this note yet, I figured I'd post a "starting point"
    answer. Looks like it may have been tried, but not sure about degrees
    of success. Try contacting Dick Coulter as a starting point for more
    info. We'll post more info as we learn more..
    
    Common Name:   DICK COULTER 
    Search Surname: COULTER  Search Given Name: DICK, RICHARD, RICHARD RICHARDS
    Generation:  JR  DTN:  223-6250  Telephone: 508-493-6250  
    Intrnl Mail Addr:  PKO3-1/N30  Location:  PKO 3-1 / Pole 2k  Node: WRKSYS  
    Username:  COULTER  Org Unit:  ALPHA,  Alpha Personal Systems, Graphics software
    Position:  Software Engineering Manager
    
    
From:	WONDER::CARLSON      "Dave DTN 223-2661 or lab 223-2745 PK03-1/20C" 16-APR-1997 09:07:53.75
To:	HARMNY::CUMMINS
CC:	CARLSON
Subj:	RE: Have either of you tried three VGAs under VMS on Rawhide (with recent console)?

Hi Bill,
    I only ever tried 2 and it worked for me.. WHen the Open 3D folks attempted
a "quick qual" they had some difficulty. I thought their problems were sysgen
parameter related but they had to defer further work. I'm not sure where they
are with the effort, but they were trying for 3 heads and a 4 proc SMP 
environment. This effort was being managed/monitored by Lori Carlson, who is
now on maternity leave. Dick Coulter's group was doing it but I'm not sure 
who the resource is..I'll try and poke this a bit today to see who knows what.

	Dave
569.2Not qualifiedWASHDC::RKLINGThu Apr 17 1997 15:535
It appears that testing has been done on multiheaded 4100s but as of now it is
iffy as to whether or not it works using the Powerstorm graphics cards. 
Certainly cannot recommend a customer to do this.  I appreciate your comments.

Roy