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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: David Wright on November 20, 2021, 01:37:22 AM

Title: Amiga 4000 takes eight minutes to boot (solved) sort of
Post by: David Wright on November 20, 2021, 01:37:22 AM
It does this no matter if 3.1 roms or 3.2 are installed, or if scsi and ide boot disabled.
Tried different Gotek. Same.
Everything was working before I installed 3.2 so even when going back to 3.1 same results.

.

So, tried two button mouse hold down for early boot. No luck, but would probably come up if I waited real long.
Tried without CF card just to wait for prompt same amount of time.

Floppy cable seem to connect and DF0 Gotek works.
Warp 040 seated well.
No Zorro cards are attached.
Memory shows all is well.
Ran some diagnostics from Gotek and couldn't find any issues.

So what gives?
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: Pat the Cat on November 20, 2021, 04:24:26 AM
I think got to be Warp card related, you are not alone;-

https://eab.abime.net/showthread.php?t=108853

Oh wait, that is you.

One thing I'd try is booting, then updating the file system on the hard drive with HDToolbox.

This will likely nuke the contents of the hard drive, but at least you might get to a shell prompt quicker than 8 minutes.

3,2 is totally different version of everything, including the file system copy on the RDB of the hard drive.

3,2 can need a mandatory clean install from 3.1. 3.1.4 it might be doable, but not 3.1.

Title: Re: Amiga 4000 takes eight minutes to boot
Post by: David Wright on November 20, 2021, 04:36:44 AM
I’m thinking warp card related also but why would it start now? Keep in mind this does all of this with 3.1 roms also and even without a hd boot. Disconnect all and try to boot with only gotek and does the same. Even the two button hold down takes that long.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: Pat the Cat on November 20, 2021, 07:24:09 AM
You have to remember that 3,2 will boot with a 3.1 ROM. :)

It will check the ROM version and try to remap the 3.2 system.

That doesn't explain why it takes so long to start up.

When you say SCSI is disabled, do you mean disconnected or entirely shut down on the Warp?

The Warp ROM startup will always be done before the startup-sequence, so if it is doing a scan of every SCSI address and LUN combination, that will take quite a while to check no SCSI devices are available.

Perhaps a terminator on the SCSI connector would definitely remove the issue.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: Pat the Cat on November 20, 2021, 07:40:20 AM
When I say shutdown on the Warp;-

"autoboot ROM (warpdrive.device) - can be disabled by a jumper"

From;-

http://amiga.resource.cx/exp/warpengine

Manual can be downloaded to check jumper connection (or lack of it).

The manual also uses the word "shunt" for jumper in one case. :)
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: David Wright on November 20, 2021, 03:54:15 PM
Played with jumpers on warp card. Tried diasbled and with other settings. Nothing changed.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: kolla on November 20, 2021, 07:07:53 PM
mmu.library and mmulib/3.2 version of 68040.library installed?

Edit: never mind… I see now.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: Castellen on November 21, 2021, 01:39:54 AM
While the computer is in the state where nothing is happening for 8 minutes, repeatedly press the caps lock key at least 10 times or more.  If the LED eventually sticks on or off, then it could be something holding the computer in reset state.  I've seen real time clock corrosion damage cause a similar issue before as well, so if there's been previous corrosion damage, remove both U177 and U178 to see if that resolves the delayed booting problem; the computer will boot normally without those ICs, though you'll have no RTC.  Remove U891 if there's signs of corrosion around that; the computer will boot without it, though you'll have no fast memory.

If the caps lock LED reliably turns on and off each time, then the CPU is at least active and suggests that the system is probably waiting for something in software (e.g. scsi.device) as others have alluded to.

Failing that, I can repair your A4000 main board if needed.

http://amiga.serveftp.net
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: David Wright on November 21, 2021, 02:33:47 AM
The caps lock test passed. No issues there.
No need to remove u177 etc. I hope
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: Castellen on November 21, 2021, 03:32:57 AM
No, unlikely to be U177, U891, etc, in that case.  Sounds as though the system is waiting an unusually long time for something if there's valid CPU activity.

If you reduce the system to bare basic, e.g. A3630/A3640 CPU board (with J100/J104 set correctly) and nothing connected except the power supply and monitor; do you get the 'insert disk' screen after about 30 seconds, or does it take 8 minutes?

If the 'insert disk' screen appears after the typical 30 seconds or so, then probably there's an issue with drives as others have already mentioned; you should be able to narrow things down from there.

If the 'insert disk' screen takes 8 minutes to appear with no floppy or hard drives connected, then there's likely some other problem with the main board at a hardware level.  It gets fairly difficult to diagnose yourself from that point.  I use special run-time monitoring equipment for quickly diagnosing that sort of problem to see what's happening with the ROM software, so you can contact me separately if it's looking to be a main board hardware issue that you need repaired.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: David Wright on November 21, 2021, 03:46:06 AM
If everything is disconnected except gotek, still same time. Even without gotek same.
Eight minutes to get insert disk or with CF card boot. Holding two buttons on mouse same.

This was recapped and one through hole repair last year. (After my poor attempt to do myself)

Title: Re: Amiga 4000 takes eight minutes to boot
Post by: Pat the Cat on November 21, 2021, 08:07:47 AM
Well... if it was checking each LUN of each SCSI address... allowing 4 seconds on each attempt to give the drive a chance to spin up...

... That would be 7 X 16 X 4 seconds, which is spookily close to 8 minutes.

It's not like the Warp SCSI lights up the hard drive activity light while it does that.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: David Wright on November 21, 2021, 02:57:03 PM
Good thinking Pat but my manual says if HJ &K are jumpered no LUN scan will proceed.
Still I played with all of them and nothing. The three terminator pins are in the card.

So frustrating since this configuration has always worked unless something broke or disconnected somehow.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: TribbleSmasher on November 21, 2021, 07:34:06 PM
Regardless of any other help except 'its probably SCSI' i can at least state that a boot time of eight minutes is certainly some kind of a record... :o
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: David Wright on November 22, 2021, 03:26:38 AM
Another issue that I just noticed. When finally in workbench mouse movement is jerky and erratic. Two optical mice and one std. tank mouse. Optical work well on other Amigas.
Joystick seems ok but I swear there were issues of function before just thought it was a glitch.

Related? I sure as heck don’t know.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: Vlabguy1 on November 24, 2021, 11:12:29 PM
Do you have an A3640 card? Seems like a good place to start. If possible get the machine back to bone stock ..no hard drive and real floppy drive. Seems kind of odd that this started happening after the software update. Which in way might be blessing that it’s not a hardware issue..but then again these old machines are sensitive.

Rich.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: David Wright on November 24, 2021, 11:29:58 PM
No other card. Actually it all started when i removed old old roms then installed new. Software worked well with 3.1 roms.
When I reinstalled old 3.1 roms issue remained.
One too many times removing warp card/roms may have done something possibly.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: davideo on November 24, 2021, 11:41:30 PM
I initially had problems getting my 4000D with a WarpEngine and a SCSI2SD and 3.2 to boot.

After a week of trying to get it to see the SCSI2SD it suddenly started to work.

No idea why it suddenly worked but at no time does it take 8 minutes to boot.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: QuikSanz on November 25, 2021, 06:32:52 AM

May be a poor solder someplace, chips may get old but fail predictably, Bad solders are random.

Chris
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: mechy on November 25, 2021, 03:14:19 PM
i use a 6 slot pcd-60b scsi card reader on the warpengine scsi in a A4000 and even checking all luns at boot its pretty fast still. 8 minutes is crazy long.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: glitch on November 25, 2021, 04:28:40 PM
I can't remember (getting old) whether the A4000 had any nvram like the A3000.  If so, I wonder if whatever is stored in there got scrambled, or is not compatible with KS3.2 and may be causing the delay.  I used a program (SetBatt for example) to clear out and re-set the contents to my liking on an A3000.  Perhaps that might help.

I have recalled seeing elsewhere that not having a real floppy attached can cause delays with 3.2, but have not been able to test that myself yet.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: David Wright on November 25, 2021, 04:37:45 PM
I looked at the setbatt in Aminet. Strongly discourages using in other Amigas
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: Havie on November 25, 2021, 06:22:15 PM
Go on, admit it, you put Windows on it, didn't you. ;D
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: Pat the Cat on November 26, 2021, 12:40:56 AM
Jerky mouse is usually the chip U541, a 74HCT166 that multiplexes direction and forms MDAT signal going to Lisa.

Could also be track issue with same signals rather than chips.

Could that on its own slow down Workbench boot? I don't know.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: David Wright on November 26, 2021, 03:00:26 AM
I don't see a U451 chip anywhere.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: Pat the Cat on November 26, 2021, 11:59:35 AM
I'm sorry, I was looking at the A4000T schematic, not the Desktop.

U975 on a Desktop version.

Roughly same position on either full or CR A4000D, about a couple inches from the clock battery, close to the edge of the motherboard.

Right in line to have dodgy connection from a spoiled battery.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: David Wright on November 26, 2021, 07:49:22 PM
Why always this amount of time? As Pat calculated the scanning on scsi channels or luns, works out to about that much.
Not saying one couldn't be misled by that but if it was a bad solder joint or bad chip wouldn't there be more inconsistency?
Even if it was, why would those issues fall in the exact same time frame.

It really feels like a system hang until it completes a routine that has some disruption, missing component then completes it work.
I can disconnect or connect all and same result.

This may have to find it's way to a competent technician.
In the past when I would take this off the shelf to play with it was always a slog getting it to boot up. Many attempts at trying to boot then finally the chime which
meant success. After that there was never a day gone by it reverted to poor startup , until I laid it away for a while. Then repeat.

I also remember last year trying to get a zz9000 to work and with poor results or none at all. Thought then it might be the daughter board but bought another one, same thing.
One more issue just to confuse all of you. I have a video toaster card that came with this and when powering up their was a high pitched whine coming out of it.
Then, I thought it was the Toaster but what if the load from it was causing the motherboard to react.

This machine has a new atx power supply by the way.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: Vlabguy1 on November 27, 2021, 01:15:37 AM
No other card. Actually it all started when i removed old old roms then installed new. Software worked well with 3.1 roms.
When I reinstalled old 3.1 roms issue remained.
One too many times removing warp card/roms may have done something possibly.

I guess it is possible something might have happened removing the warp/roms. A shame you dont have another cpu card, makes testing/troubleshooting a little more difficult. 

Rich





Title: Re: Amiga 4000 takes eight minutes to boot
Post by: Pat the Cat on November 27, 2021, 02:02:44 PM
Why always this amount of time?

Outside chance of it being a fault with the reset circuit,

This times a specific time by charging up a capacitor, if the resistor feeding it developed a higher resistance, it would take longer to charge.

Oh, that chip also handles some timing signals as well as the mouse, so  could just be that one chip (more likely connections to and from it).
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: Vlabguy1 on November 27, 2021, 02:43:22 PM
Why always this amount of time?

Outside chance of it being a fault with the reset circuit,

This times a specific time by charging up a capacitor, if the resistor feeding it developed a higher resistance, it would take longer to charge.

Oh, that chip also handles some timing signals as well as the mouse, so  could just be that one chip (more likely connections to and from it).


Could be. But seems odd that he is just having this issue after making a rom/software change. You would think these issues would have occurred before if not just more randomly. But again these old machines tend to do better the less you mess with them. Could always check the power supply output voltages. Without having another machine or other parts to swap and test and not seeing anything visibly wrong with any of the boards this could take a while to resolve..
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: David Wright on November 27, 2021, 07:28:50 PM
Well some things from the past could be relevant as I stated earlier:

In the past when I would take this off the shelf to play with it was always a slog getting it to boot up. Many attempts at trying to boot then finally the chime which
meant success. After that there was never a day gone by it reverted to poor startup , until I laid it away for a while. Then repeat.

I also remember last year trying to get a zz9000 to work and with poor results or none at all. Thought then it might be the daughter board but bought another one, same thing.
One more issue just to confuse all of you. I have a video toaster card that came with this and when powering up their was a high pitched whine coming out of it.
Then, I thought it was the Toaster but what if the load from it was causing the motherboard to react.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: David Wright on November 28, 2021, 12:24:01 AM
I was told if power light goes from dim to bright on power on or reset then probably reset switch is good. This is the case here.
Someone mentioned Diagroms to test but that info wouldn't help me much unless provided to others
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: David Wright on November 29, 2021, 11:43:36 PM
Anyone here know where in US I can get diagroms?
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: Vlabguy1 on December 04, 2021, 10:36:03 PM
Any change or update?
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: David Wright on December 04, 2021, 11:07:35 PM
Diagroms should be here Monday. Hopefully I can get info that others can interpret.
I have no null modem or serial cable but since video output works maybe read it directly.
Thanks for asking.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: David Wright on December 07, 2021, 03:21:00 AM
So I put the diagroms in today. Boots quick to diagnostic screen first off.
Ran all the tests  and don’t see any issues. Decided to put in old 3.1 roms just to be sure and it’s the same old thing except since I have 3.2 OS it boots twice , so 16 minutes , lol.

I don’t think diagroms are any good seeing issues with warpengine. All the ram on it work and obviously cpu is good.
Still a funny thing mouse movement is flaky in workbench but if I go into a diagnostic program like amiga test it runs smooth. If I can get back to workbench it works well again.

So thats it, without another cpu board I can’t run any more tests. May seek out tech guru and have it looked at.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: Vlabguy1 on December 08, 2021, 01:28:54 AM
Yes a stock cpu board would be key at this point.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: mechy on December 11, 2021, 09:52:34 PM
A few more things to check, i have had 4000's where the cpu slot was dirty and needed a good cleaning with Deoxit-clean the accelerator and motherboard connectors.
also its not uncommon for the pins in the cpu socket to make bad contact and i have fixed many by going behind each pin on the motherboard side with a needle to bring the contact out a bit,very delicate operation with a thin needle,but has fixed some stubborn problems.
I dont recall reading if you had checked power supply voltages. i find a4000's become flakey on boot at around 4.92v or lower on the 5v rail.

Some of the things you mention make me thinki of a bad OS install,have you tried another drive and or cf card with a fresh basic install?
 
The warp engine jumpers have some delayed HD booting options,are you sure the jumpers are correct? can you post a picture of the warp engine how you have it jumpered?

As for the mouse acting weird at time,this could be related to power supply issue or bad caps.. A bad CIA etc..but it almost seems software affects this from what you wrote?
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: David Wright on December 12, 2021, 10:10:16 PM
Here is photo showing jumpers but I have played with all kinds of options to no avail.

As far as bad OS, doesn't matter. Tried without and using barebones install. Two button hold down takes 8 or so minutes also.

Bad caps or chips. Possible.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: Vlabguy1 on December 13, 2021, 01:08:04 AM
take the memory sticks out one by one and booting the machine after each removal.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: David Wright on December 13, 2021, 02:22:42 AM
Do you mean the warp memory or system?
Took out all of warp memory no change. As far as checking memory amiga test kit tested all of it. Removing board memory makes me nervous, very good chance of damaging clips.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: Vlabguy1 on December 13, 2021, 03:35:02 AM
yeah I know what you mean. Ive seen plenty of Amigas with hot glue holding the memory chips.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: Pat the Cat on December 13, 2021, 07:11:22 AM
When you setup the hard drive to install 3.2... did you use the Warp scsi tools utility or the 3.2?

After reading the manual, page 31 lists an option to check or uncheck to force the system to stop looking for extra drives and get on with booting.

After re-reading this thread, that's when the problem started - an unchecked entry on the RDB.

You might get away with just clicking the option and saving the RDB, rather than trying to reinstall everything from scratch.

Or not. :(
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: davideo on December 13, 2021, 04:13:51 PM
Have you tried it with autoboot turned off K, J and H removed.

You've also got Wait State turned on. This is normally off by default. Jumper D

I've read through the thread and can't see what size Sims you've got fitted
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: David Wright on December 13, 2021, 07:34:26 PM
As previously stated I have no better luck on wait time if I just do basic boot up with insert disk prompt.
As of now I have the 3.1 roms installed and no different.

Removed jumper on D and no change.
Ram installed on Warp 128mb, 18mb on MB. All tested and good.
When I installed OS 3.2 I used Winuae  but again, the issue persists with out a boot from there.

Thanks all for staying with me on this.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: Pat the Cat on December 13, 2021, 09:41:51 PM
... E and L jumpers have to be set.

Maybe if they are not, the Warp tests all memory for errors?
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: davideo on December 13, 2021, 09:45:14 PM
So with the auto boot switched off does it still take 8 minutes to show the Rom screen?
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: David Wright on December 13, 2021, 10:12:22 PM
Yes
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: davideo on December 14, 2021, 10:14:35 AM
Have you tried another CPU board?

If you're in the UK I can lend you a 030 CPU board for testing
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: David Wright on December 14, 2021, 01:06:17 PM
Using another cpu board was discussed earlier in the thread. That is the next logical step . Thanks for the offer but I am in Michigan.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: davideo on December 14, 2021, 01:38:45 PM
Apologies I missed that
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: mechy on December 14, 2021, 04:42:46 PM
Thanks for the picture,
I see nothing wrong with the jumpers other than "D" should be removed to have no wait state ram(if its 60ns ram,remove it).
this would no affect anything.

Are the Amiga motherboard jumpers set to EXT?

even if boot delays were set and luns scanning on it still wouldnt take that much time.
I am using the warpengine in a A4000 with scsi card reader and full device and lun scans and it is still pretty quick.

Its a perplexing problem you have there.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: davideo on December 14, 2021, 06:48:34 PM
On your photo you appear to have the SCSI cable inserted mid run of the cable.

Is anything fitted on each end of the cable currently?
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: David Wright on December 14, 2021, 07:47:36 PM
I show here the scsi ribbon set up, connecting on card, CD and back plate scsi connector.
I also try booting with cable completely disconnected.

Also show jumper connection on MB for Mechy.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: davideo on December 14, 2021, 09:09:28 PM
If you've got a SCSI device on each end of the cable you need to remove the termination on the WarpEngine.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: David Wright on December 14, 2021, 10:24:57 PM
I believe I removed them now. Are they the three pins aligned in a row next to scsi cable connection?
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: davideo on December 14, 2021, 11:00:30 PM
This is my 3rd attempt at replying to this lol

As far as I can see they should be the ones.

Have you got a copy of the manual?
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: David Wright on December 14, 2021, 11:13:58 PM
Yes checked manual. Thats it. No change.
I’m thinking scsi problems aren’t it.
This hobby is fun.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: davideo on December 14, 2021, 11:17:29 PM
It certainly is with my 4000D as well.

It's been it bits for a year and I'm now just putting it back together after sorting out a few things.

I've installed 3.2 but it seems very slow so I'm going to try it with 3.9 again.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: mechy on December 15, 2021, 07:00:07 PM
Everything looks ok settings wise.
Here is the warp engine manual: http://amiga.resource.cx/manual/WarpEngine.pdf

Someone mentioned you have the middle of the cable connected to the scsi card? this is not recommended,but since you had scsi completely disconnected with no change its likely not the problem.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: scuzzb494 on December 23, 2021, 12:13:26 AM
This is not going to help one bit but each day I switch on this A4000D behind me and it takes around the same time as yours to boot the floppy. I just leave it for ages and eventually I hear the floppy kick in. And the reason its no help is cus this has a busted hard drive and its on an eternal spin. I have left it over a day and it still doesn't validate the drive... its had it. I just have a Parnet waiting here and an A1200 just in the hope she will boot one last time. But the time taken is weird cus the 4000 is obviously waiting for the hard drive and it takes so long for it to decide there isn't one coming and then boots the floppy. If I wait 20 minutes I will get the CD drive power light flick on.

I haven't read all the thread but I assume after the time period it boots into something. I just get the feeling the computer may be seeking something but can't find it. I have had so many issues with long boot processes. One machine I have to softboot three times in succession and she boots each and every time. I also have one machine that hangs on the SCSI which someone suggested with the dreaded phase shift. I set the computer with the echo so I can see the startup process and I get a stall on the SCSI.

No help sadly. My solution will be to finally accept the hard drive isn't going to validate and change the thing.  You don't have an old 3.5" hard you can connect up. Sorry if you already do that. I just read something about a CF. I don't use them myself so I can't comment. To quote U2 I fear your computer is looking ' But it still hasn't found what it's looking for '... and then boots something else.
Title: Re: Amiga 4000 takes eight minutes to boot
Post by: David Wright on December 23, 2021, 02:37:44 AM
Sorry for your issues Scuzz, I feel it. Playing with all this old stuff requires grit and patience.

Now, coincidentally I just came here to announce it is mostly solved.
I Took all of the jumpers off the scsi settings on Warp card and now, voila, everything boots fine. No erratic mouse movement either. I know I have done this  a few times before but nothing worked. Maybe in conjunciton with another jumper removed (or added) or scsi cable removed completley, I don't know. But there it is.

Does that mean I can't use the scsi connection anymore. I do have a half assed cd rom (scsi) that is now working properly anyways . In the future a ide cd rom maybe?

A sincere thanks for all those that looked at this and gave their input and consideration. Pat the Cat comes to mind who was closest,(prob a few others). Pat did the math on time for lun check and the like and came up with a comparable time.

There still the age old issue of it now hanging on last signal for suspended booting. Always happens after I move too many things around or leave idle for months. Then at some time when powering up it just happens and stays good. That happened yesterday.
That my friends is for another day.
Thanks all and Merry Christmas.
Title: Re: Amiga 4000 takes eight minutes to boot (solved) sort of
Post by: Vlabguy1 on December 24, 2021, 05:38:57 PM
These jumpers are on the accelerator/processor card?
Title: Re: Amiga 4000 takes eight minutes to boot (solved) sort of
Post by: David Wright on December 24, 2021, 05:51:36 PM
Yes on the warp card. I had done a total removal before but didn’t change anything then. Maybe a combination of another jumper or disconnect device, not sure.
Title: Re: Amiga 4000 takes eight minutes to boot (solved) sort of
Post by: Vlabguy1 on December 25, 2021, 02:40:04 PM
Dang. Pick up a 3640 card...would have been quicker to find the cause of the issue. So seems something is up with the Warp card?
Title: Re: Amiga 4000 takes eight minutes to boot (solved) sort of
Post by: David Wright on December 25, 2021, 02:49:56 PM
Well at least it works now and boots fast. Screw scsi, I will live without it. Probably will put an Ide cd-rom drive in it
Title: Re: Amiga 4000 takes eight minutes to boot (solved) sort of
Post by: Pat the Cat on December 25, 2021, 07:51:05 PM
It's probably fine. More likely to be OK than the CD drive.

The default of "all 3 jumpers on" assumes that all scsi drives will sync.

Most scsi drives default to asynchronous. And all will dumb down to single ended "Amiga era" scsi.

Warp scsi is very good when it's setup right, but it certainly isn't dumbed down or basic options only.

EDIT: OK, SAS SCSI drives excepted, and 68 and 80 pin SCSI drives need adapters to connect to a 50 pin cable.

Title: Re: Amiga 4000 takes eight minutes to boot (solved) sort of
Post by: Pat the Cat on December 25, 2021, 08:12:59 PM
An oldie but goodie... rough guide originally written with the A4000 user in mind;-

http://www.wonkity.com/~wblock/SCSI/SCSIExamples.html