Hi
Yturned my a1 on today and it stoped after loading kickstart. Rebooted and it came up with a black screen no uboot nothing. I put in New battery nothing. went out bought a handful of batteries tried them on the first try uboot appeared and stopped at checking the 2nd drive. nothing. Th Hd activity light comes on and stays on. I tried switching drives in case it was the boot drive. still no uboot. I've writing this at the library so I can wait awhile (6 minutes) and come back tomoorow for answer.


a1 1024 mb 933 mgh g4 radeon 9250
Painter

Last edited by painter on 23-Jun-2008 at 04:11 PM.

@painter
I guess you also tried to disconnect one of the drives completely? One bad hd can hang the whole system, even if it is not set as the boot drive. Also try to disconnect/replace things like the cd/dvd rom or similar.

Last edited by Tomas on 12-Jun-2008 at 08:33 PM.
Last edited by Tomas on 12-Jun-2008 at 08:32 PM.

@Tomas

Yes tried each drive in turn separately. removed all cards except the radeon. Did it a few times. Now I may have cables turned around . I have the printing on the edge of the cable to the out side of the drive. away from the power connection. I have had trouble in past with this cable on the slave drive I often had to reseat the connector awhen the computer couldn't find the slave drive on boot

painter

It's sad to see AmigaOne's breaks this easily and often. SE model has its own problems but looks like it's more reliable than XE's. *knocking wood*

Last edited by Tomppeli on 12-Jun-2008 at 08:58 PM.

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@painter

See last comment

Did you put the new battery in immediately? For some reason a capacitor has to be discharged so a wait of 30 minutes does the trick. Although you removed and replaced all boards and other connections did you really get them reseated properly, particularly the graphics card? Even with all the others away you should have got uboot to the point of checking for drives if the radeon and battery were doing their job unless, in all this activity the ram had become unseated. That can give you a complete blackout. Presumably the drives spin up to indicate the PSU is OK?

Noel

Oops! read your post again. so the problem is a bit further down the line. Once uboot has checked drives it may be necessary to restore nvram (your variables) but lucky people get past that with no trouble.

Last edited by NoelFuller on 12-Jun-2008 at 09:05 PM.

@painter

maybe it died because of overclocking...

@painter

That looks exactly how my A1 is now.
My system went down nearly the same way and is still non-working for a few weeks now.
I`m taking mine to an Amiga meeting in Coventry area on the 5th July.

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@painter

please try this in the exact order and do all.
DO NOT SKIP ANY STEP AS SILLY AS THEY SEEM THERE IS A METHOD TO THE MADNESS

1 Pull power cord
2 Pull battery
3 pull all cards
4 pull all cables
5 pull keyboard mouse and anything and everything from all ports.
6 disconnect everything from PSU if you haven't already
7 pull and re-seat memory. If you have more then one only put back one.
8 gently push on the back of the cpu module to make sure it is well seated don't push on heat sink
9 insert video card.
10 attach monitor to video card
11 attach PSU to motherboard
12 replace battery
13 attach power cord to PSU
14 THATS ALL DON'T CONNECT ANYTHING ELSE NO KEYBOARD MOUSE NOTHING NADA ZILCH
15 hit the power button does it work.

if that doesn't work still leave everything disconnected and switch to 100 FSB.
if that doesn't work still leave everything disconnected and pull video card.
if you have a null modem cable see if you get any reports from the serial port if you need help on setting that up and speeds on come back here and ask.


kgrach

@painter

Quote:

I have the printing on the edge of the cable to the out side of the drive. away from the power connection.

Umm... Isnt that the wrong way round? The red printed side edge should be next to the power connector - like this.

@painter

Oh I see you clocked your computer to 933Mhz and now it does not work. I have worned against bad CPU fans on G4's, even 866Mhz kills CPU's.

Don't panic it might be some thing else like UBOOT settings being lost, try flipping the battery to reset uboot,

Remove every thing, discount USB cables, HD cables and network cable and remove extra PCI cards.

If UBOOT comes up on the screen try pressing ESC a few times until you hit, uboot shell,
then type Menu and press Enter, find reset to factory defaults and save.

If UBOOT does not come up, check that every thing is in place RAM and CPU,
try the null modem trick if not char or symbols are sent over the serial cable, then your CPU just died, if so contact ACube and Get your self a new G4 1Ghz or more for your CPU module.

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@Benji

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@painter

Quote:

I put in New battery nothing. went out bought a handful of batteries tried them on the first try uboot appeared and stopped at checking the 2nd drive.

Lost Uboot settings perhaps ? Check them all.

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@Tomppeli

Quote:

SE model has its own problems but looks like it's more reliable than XE's. *knocking wood*

7455 G4's run hot, G3's are not so warm, and the SE model uses a lower clock freqency.

Last edited by NutsAboutAmiga on 12-Jun-2008 at 11:42 PM.
Last edited by NutsAboutAmiga on 12-Jun-2008 at 11:40 PM.

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@painter

Quote:

I have had trouble in past with this cable on the slave drive I often had to reseat the connector when the computer couldn't find the slave drive on boot

Bad cable? I've had to replace several over the lifetime of my A1. (what, six years now??) I've had things come back to life twice after replacing a cable.

Also, many of us are now hitting the life expectancy of a hard drive. My first one for this machine has died now. My old backup drive is now my main drive. My backup drive is now an older, never used small SeaCrate.

Were you getting any messages about not being able to find the slb?

Paul

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@Paul

I think the ATA cables looks fragile, I try to touch the cables as litter as possible, I never have head problems due to cables, but might that I'm just being careful.

Any way I think Benji found out what was wrong:
Red edge should point to the power connecter as Benji pointed out.

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@NutsAboutAmiga

I didn't overclock it it's alway has been that way. I haven't the skills to or nerve to overclock.
The only change in hardware i've made in 4 years is to put in 1gig of ram - a kingston value ram. I took it out and put back the old 512 ram but same problem.
i only have the one computer. I've doing this communication from the library computer. Can't find an internet cafe in winnipeg. I sure there is one just can't find it.

@Paul
I have changed the cablews around and that does not change anything. no slb errors on the cable but the drive just wouldn't be found and i'd get errors from user startup for all the assigns related to that drive.
@all
I'm thinking of atking the computer in to a repair place that has built computers to spec for a fried to see if they can diagnose the problem since there's nowhere in Canada to get it repaired. Any opinions on that folks?

painter

Last edited by painter on 13-Jun-2008 at 05:08 PM.
Last edited by painter on 13-Jun-2008 at 05:04 PM.
Last edited by painter on 13-Jun-2008 at 05:01 PM.

@painter

Quote:

I'm thinking of atking the computer in to a repair place that has built computers to spec for a fried to see if they can diagnose the problem since there's nowhere in Canada to get it repaired. Any opinions on that folks? painter

repair centers for AmigaONEs are in France and Italy (ACube)

ACube also replaces (if you want it) old processors with new PPCs clocked at 1 GHz...

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@Raffaele

Italy and france are along way away, across the ocean. That's why I ask if you think a general computer tech who builds systems from scatch could savely debug my aone without doing more damage.
Fourtunaately I've got a fairly recent backup. only losing some maps of ww2 bomber pilot runs and some stuff i was working on in imagine 5.19.
painter

@painter

Try everything that comes to mind before sending the board to repair. Try changing the PSU which might be faulty, for example. Also, another idea would be to find someone else who has an A1 and willing to try to swap just the motherboards.

Varthall

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@Varthall

Do not know of anyother a1's in Manitoba, let alone Winnipeg. But from what someone else suggested I'll try a new cable if that doen't work I guess i'l have to decide if the computer get a trip abroad or goes to the local guy if he's interested. Do you know if the people at acube deal in english over the phone? I can't email them because i can't check regularly for a reply.
the only repair man in Canada I know of doesn't have too good a rep. Adam at Ack. Don't have a contact for him anyway. NO phone number address or url.



painter.