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Re: Hard drive problem?


"Polymorph" <polymorph69@hotmail.com> wrote in message 7863ac83-fbec-446b-b452-4fb770c7673f@x16g2000prn.googlegroups.com">news:7863ac83-fbec-446b-b452-4fb770c7673f@x16g2000prn.googlegroups.com...
On Aug 20, 3:41 am, "Bill Garber" <willy4...@comcast.net> wrote:

<commodorej...@gmail.com> wrote in message55b3c4a9-4d1f-417a-a44e-75250aa69481@z72g2000hsb.googlegroups.com">news:55b3c4a9-4d1f-417a-a44e-75250aa69481@z72g2000hsb.googlegroups.com...
> Okay, finally pinpointed the problem: it's taking 38 seconds, from
> boot, to actually pop up the ICP or give any indication that it
> recognizes the hard disk. I guess I just wasn't being patient enough.
> But 38 seconds is well after the drive has finished spinning up; I
> presume I can cut down on the wait by modifying the boot delay
> jumpers? If so, can someone explain the jumpers to me? They're not
> mentioned in the manual linked above; it has settings for partition
> start and size and drive ID listed where the other settings should be.

________________________________________
/ |
/ u 1 u 2 u 3 u 4 jP2 |
/ |
| |
| |
| u 5 u 6 |
|_________________________ jP1 |
| |
|________________|

u 1: Boot Scan delay....manual shows no
jumpers here in default configuration

u 2: #1 (left) jumper is 'Enable I.C.P.
(Yes/No)', middle 6 not used,
#2 (right) is 'multiple initiators (Yes/No)'
manual shows no jumpers in default configuration

u 3: Selection phase time out delay..I believe this
sets how long the card waits for the drive to
come up to speed(?)...manual shows the default
as having 4, 5, and 7 with jumpers installed

u 4: Arbitration phase time out delay..
manual - default no jumpers installed

u 5: Bus Free phase time out delay..
manual - default has jumper on number 1

u 6: Interrupt recovery delay....
manual shows jumpers on 3, 4, and 5

JP1 and JP2 are single sets of pins.
Manual - J2 is not used, J1 is jumpered.

My card has the following jumpers set
*** (for use with 1990 ROM only): *** 
u1: jumper on 7
u2: no jumpers
u3: jumpers on 4, 5, and 7
u4: no jumpers
u5: jumper on 1
u6: jumpers on 3, 4, and 5
jP2: no jumper
jP1: jumper

This setup yields a rather long pause for the
hard disk to come up to speed (about 40 to 45
seconds) that they found necessary at the time
to avoid boot problems. However, being my hard
drive can be started prior to starting the IIgs,
this could be shortened provided you can figure
out the settings. Good Luck.

Bill Garber from GS-Electronicshttp://www.garberstreet.com


< Don't forget the jumper configurations differ greatly between the CMS
< SCSI ROM versions (especially between the 1989 and 1990 ROM's). Bill,
< I'm pretty sure the jumpers you've listed are for the 1990 ROM version
< correct?
That is correct, as it states right there in the docs. 
< The original poster will need to confirm that they too have the 1990
< ROM (otherwise the jumpers could be different). Usually the ROM on the
< card has a sticker indicating the ROM version. For the record, there
< are 3 versions of the ROM - 1987, 1989, & 1990. Generally, the 1990
< ROM is the best one to have.
Yes, and I am able to supply the 1990 ROM to anyone who desires to upgrade. You pay for the eprom and postage. I don't know about the sticker, being the upgrades were probably just a chip with a paper label which has more than likely fallen off by now. Never know. 
Bill Garber from GS-Electronics
http://www.garberstreet.com