Re: Hard drive problem?

[commodorejohn@gmail.com]

On Aug 19, 12:41 pm, "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

Does the manual explain exactly how the jumpers work? I fiddled around
with the selection phase timeout jumper and got it down to about 30
seconds, but it'd still be nice to shorten that further. Also, yes,
it's a 1990 ROM.