@raumfahre

Okay so where is this flash chip located? And does this combine UBoot and NVRAM just to be clear? If so it will be a worry to remove UBoot for me!

There is no mention of this in the manual I found online.

I wonder why it would suddenly stop on the NVRAM.

@Hypex
Quote:

Okay so where is this flash chip located?

http://www.intuitionbase.com/gfx/XEPics/motherboard.jpg
Not a great pic, but It's the chip with the green dot.

Quote:

And does this combine UBoot and NVRAM just to be clear?

I'm not certain, but I would have thought so.

If you DO decide to remove the chip, (as I mentioned before) be extremely careful, as it is all too easy to pull the socket up with the chip! Apply opposing force to the brown coloured socket housing at the same time as you pull the chip.

It'd probably be a good idea to remove the battery first.

Last edited by raumfahre on 02-Jan-2012 at 05:29 PM.

@raumfahre

Okay thanks for the info. Yes I see now the UBoot firmware chip.

Okay, now after reading about that chip that I have read before I'm afraid of taking it out!

I just want to be sure it also contains the NVRAM if I mess with it so have sent contact for info. If it's down to replacing the chip with another one then I can do that when I have a replacement.

I have a friends working A1 who chip I could test but I don't want to pull out his and endanger the board for a test if it goes no where.

@All

I've so far pulled all drives and cables out sans some tower connections and so far have no change.

But I have noticed that my PSU motherboard plug has a burn mark on the hole from the top second left. The PSU was replaced over a year ago now. I will find another to test.

Finally here the complete UBoot log so far:


U-Boot 1.1.1 (Mar 3 2005 - 16:42:53), Build: 03/03/05

CPU: 750FX v2.2 @ 800 MHz
Board: AmigaOne
DRAM:
Information for SIMM bank 0:
Number of banks: 2
Number of row addresses: 13
Number of coumns addresses: 11
SIMM is registered
Supported burst lenghts: 8 4 2 1 PAGE
Supported CAS latencies: CAS 3 CAS 2
RAS to CAS latency: 3
Precharge latency: 3
SDRAM highest CAS latency: 750
SDRAM 2nd highest CAS latency: 1000
SDRAM data width: 4
Auto Refresh supported
Refresh time: 1042 clocks
Bank 0 size: 512 MB
Bank 1 size: 512 MB


Information for SIMM bank 1:
Number of banks: 2
Number of row addresses: 13
Number of coumns addresses: 11
SIMM is registered
Supported burst lenghts: 8 4 2 1 PAGE
Supported CAS latencies: CAS 3 CAS 2
RAS to CAS latency: 3
Precharge latency: 3
SDRAM highest CAS latency: 750
SDRAM 2nd highest CAS latency: 1000
SDRAM data width: 4
Auto Refresh supported
Refresh time: 1042 clocks
Bank 0 size: 512 MB
Bank 1 size: 512 MB

DIMM0_B0_SCR0 = 0x00ff9f00
DIMM0_B1_SCR0 = 0x00ff9f00
DIMM0_B2_SCR0 = 0x00ff9f00
DIMM0_B3_SCR0 = 0x00ff9f00
Using CAS 3 (slow)
Using CAS 3 (slow)
DRAM_GCR0 = 0x00551000
Refresh set to 2083 clocks, auto refresh on
DRAM_REFRESH0 = 0x00019823
Mode bank 0: 0x00008032
Mode bank 1: 0x00008032
Mode bank 2: 0x00008032
Mode bank 3: 0x00008032
2048 MB

@Fairdinkem

Merv Brave?

Hes a Mac user, so had no issues giving the A1 away for temporary use age.

Technically he was also waiting for a new graffic card for his A1 at the same time.

Cheers

_________________
Courtesy of SAM440Flex & Amiga OS4.1 only
Flex is 800mhz
A1000 with Classic 520 Amiga OS3.2.1
AmiKit 12
MorphOS PowerBook G4 (which can play youtube vids)

https://blitterwolf.blogspot.com

Now we have quite many A1:s not working. Welcome to the Team;)

@PR

Yeah thanks.

I already broke a CPU module once and knew about it. I don't know what's broken here.

@Hypex

Hi Hypex,
What could be wrong? ... the power is getting through and the voltage looks good. The bad news is that my AmigaOne still won't boot!
Wonder where that NVRAM is?
I wonder why it would suddenly stop on the NVRAM.
No IO jump vector is being written in for the OS jump. My theory...

Did you try using a minimum memory config, like 256 MB.

My thread here...
http://www.amigans.net/modules/xforum/viewtopic.php?topic_id=5091&forum=4

_________________

@PR

What?

@PR

YEah, but unlike many others, hes still a lucky chap, eventually hell be able to get onto the internet with the x1, hahahaha.

What a drag!

Meanwhile he could either borrow one of my systems or simply borrow Merv's system since he doesn't really use his A1, for that matter, almost none of his Amiga's, what a shame. People like him disappoint me in our community, if you have an Amiga, at least use it!!!! Otherwise sell it to someone that will use it is what I say!

My 2 cents worth of rage,

Cheers

_________________
Courtesy of SAM440Flex & Amiga OS4.1 only
Flex is 800mhz
A1000 with Classic 520 Amiga OS3.2.1
AmiKit 12
MorphOS PowerBook G4 (which can play youtube vids)

https://blitterwolf.blogspot.com

@Hypex

Well done Hypex, Well Done!!!

Maybe next time you'll check the stick first, take it out, ram it back in!!!!



Cheers

_________________
Courtesy of SAM440Flex & Amiga OS4.1 only
Flex is 800mhz
A1000 with Classic 520 Amiga OS3.2.1
AmiKit 12
MorphOS PowerBook G4 (which can play youtube vids)

https://blitterwolf.blogspot.com

@All

As Dr. Farnsworth said, "Good news everyone!"

I tested a friends 1GB stick from his A1 and it worked! Uboot got past the memory, flash and VGA and then some!

It looks like my RAM somehow went bad. And here's the strange part. I then tested my sticks to see if one was faulty and now they both work again!

I've got it up to the VGA console. Just gotta get my hardware back together and get AmigaOS4 booting.

Oh, I believe it's time for some bananas.



Here's a 1GB working debug log from my Mac:

U-Boot 1.1.1 (Mar 3 2005 - 16:42:53), Build: 03/03/05

CPU: 750FX v2.2 @ 800 MHz
Board: AmigaOne
DRAM:
Information for SIMM bank 0:
Number of banks: 2
Number of row addresses: 13
Number of coumns addresses: 11
SIMM is registered
Supported burst lenghts: 8 4 2 1 PAGE
Supported CAS latencies: CAS 3 CAS 2
RAS to CAS latency: 3
Precharge latency: 3
SDRAM highest CAS latency: 750
SDRAM 2nd highest CAS latency: 1000
SDRAM data width: 4
Auto Refresh supported
Refresh time: 1042 clocks
Bank 0 size: 512 MB
Bank 1 size: 512 MB

Slot 1: vacant
DIMM0_B0_SCR0 = 0x00ff9f00
DIMM0_B1_SCR0 = 0x00ff9f00
DIMM0_B2_SCR0 = 0x007f9f00
DIMM0_B3_SCR0 = 0x007f9f00
Using CAS 3 (slow)
DRAM_GCR0 = 0x00550800
Refresh set to 2083 clocks, auto refresh on
DRAM_REFRESH0 = 0x00019823
Mode bank 0: 0x00008032
Mode bank 1: 0x00008032
1024 MB
FLASH: 0 kB
*** Warning - bad CRC, using default environment

VGA: NOT PRESENT
In: serial
Out: serial
Err: serial
SCSI: Error SCSI Controller (1000,000F) not found
Net: 3Com 3c920c#0
AT Keyboard initialized!
USB: scanning bus for devices... 1 USB Devices found
No Catweasel controller (0xe1594, 0x0001) attached
Bus 0: ............

@Hypex

Congratulations.

I have had a couple of episodes like this with my Sam440ep-flex.
They were trigered by faulty PCI ethernet cards. The system booted
OS 4.1 but froze with an ethernet related error. Same uboot freeze on reboot even with the Ethernet card removed so it appers as if the offending action may have been caused by
either Uboot or OS4.1 scrambling something in Uboot due to the error.
----------------------------------------------------------------------------------------------------------------------------------------

U-Boot 1.3.1d (Feb 15 2011 - 17:02:59)

CPU:   AMCC PowerPC 440EP Rev. C at 799.999 MHz (PLB=133, OPB=66, EBC=66 MHz)
      I2C boot EEPROM enabled
      Bootstrap Option H - Boot ROM Location I2C (Addr 0x52)
      Internal PCI arbiter enabled, PCI async ext clock used
      32 kB I-Cache 32 kB D-Cache
Board: Sam440ep-flex
I2C:   ready
DRAM:  ERROR: Cannot determine a common read delay.
1024 MB

Last edited by Spectre660 on 04-Jan-2012 at 11:57 AM.
Last edited by Spectre660 on 04-Jan-2012 at 11:50 AM.

_________________
Sam460ex : Radeon Rx550 Single slot Video Card : SIL3112 SATA card

@Snuffy

I did see your thread actually. As to your theory, technically my machine has a jump vector or reset vector work as the machine was starting up in the firmware.

But there was no jump into the OS as it didn't get to that point.

As to the RAM, I had a working 256MB until a PC killed it and a spare 128MB at home. But as you would see was able to test a 1GB stick working and then my own RAM suddenly working.

Now to your machine. I don' think it's a lost cause. If OS4 can load Kickstart off the HD then your machine is in pretty good order. What I agree with is checking the seating of your PCI cards.

Now, usually when OS4 can't get past the Kickstart, it tends to be some NVRAM settings messing it up. Or an incorrect IDE setup.

What I would do is forget that UBoot command line for a while and use the UBoot menu. You can disable onboard IDE from it and set up the boot device. So what I would do (and what I did today infact) is use the menu to restore factory settings.

Then, if you are using your 0680 IDE, use the menu to disable onboard IDE and set your boot deivce to the Sii HD or CD. But first I would try an OS4 CD. Just to make sure your HD isn't stalling the boot with some errors perhaps.

@Hypex

Quote:

As to the RAM, I had a working 256MB until a PC killed it and a spare 128MB at home. But as you would see was able to test a 1GB stick working and then my own RAM suddenly working.

removing and re-inserting the ram stick, cleaned somehow, a dirty contact/s.

Glad you sorted out anyway!

_________________

@Hypex

Lucky You. Just vacuum cleaner and reseting all. Still no works. Booting but not stable.

@Spectre660

Thanks

It's strange how it still affected the system even after the hardware was removed! I note it also gave you memory problems. Was that also after removing the card?

I also know the Sam flex doesn't like some VGA cards in the VGA slot. Or OS4 doesn't.

@Gebrochen

Haha.

But I already did that. When I stripped it down the first time I took it out and put it back in to test. Still didn't work.

@Framiga

Yeah, it's funny. I pulled them out and put them back in with no change. And it was only whenb I put in foreign RAM that it started to work.

And of course five minutes before it broke down the machine was on and working.

@PR

Is that your machine? Unstable. That's how my G3 was before I bought a new PSU and set voltage to proper 1.44V.