Author Topic: Problem with two 6128's  (Read 303 times)

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Offline jonnixx

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Problem with two 6128's
« on: 17:03, 07 November 18 »
Hi,I am again.
1., I have a "new" CPC 6128 from ebay.
2., Tested the new 6128 with memtest.bin. Memory failed. All lines are red.
3., Conclusion: 2x 40010 failed or memtest is bad.
4., I wrote mail to Gerald, download the source and the latest memtest.bin.
5., Burn latest memtest.bin into EPROM and test both. Both memtest are OK. (oldest and newer 6128)
See the picture.
6., BUT: both CPC 6128 has same loading problem: freeze the program during loading (R-type Reloaded) when warm the CPC.both CPC are Spanish.
7., I tried to put heatsink onto 765 FDC. No change.
May i get any help?
Regards,Jonni
« Last Edit: 09:33, 09 November 18 by Bryce »

Offline gerald

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Re: Re: Quick and dirty RAM test for CPC
« Reply #1 on: 18:00, 07 November 18 »
Hi,I am again.
1., I have a "new" CPC 6128 from ebay.
2., Tested the new 6128 with memtest.bin. Memory failed. All lines are red.
3., Conclusion: 2x 40010 failed or memtest is bad.
4., I wrote mail to Gerald, download the source and the latest memtest.bin.
5., Burn latest memtest.bin into EPROM and test both. Both memtest are OK. (oldest and newer 6128)
See the picture.
6., BUT: both CPC 6128 has same loading problem: freeze the program during loading (R-type Reloaded) when warm the CPC.both CPC are Spanish.
7., I tried to put heatsink onto 765 FDC. No change.
May i get any help?
Regards,Jonni
With both CPC having the same problem, I would start suspecting your R-Type Reloaded floopy.
Or both have the second bank failing (memtest only test the main one)
« Last Edit: 18:12, 07 November 18 by gerald »

Offline jonnixx

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Re: Re: Quick and dirty RAM test for CPC
« Reply #2 on: 20:05, 07 November 18 »
OK.
1.,I am looking for other 6128 programs.
2., I have replaced the first and second bank memory in older/first CPC 6128.

Offline Duke

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Re: Re: Quick and dirty RAM test for CPC
« Reply #3 on: 22:38, 07 November 18 »
OK.
1.,I am looking for other 6128 programs.
2., I have replaced the first and second bank memory in older/first CPC 6128.

You can try this tester I wrote http://www.cpcwiki.eu/forum/amstrad-cpc-hardware/wanted-working-memory-expansion-for-cpc-464/msg165794/#msg165794
Only pay attention to the first "page" of the tests as the rest is only if you have more ram.

Offline jonnixx

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Re: Re: Quick and dirty RAM test for CPC
« Reply #4 on: 22:43, 07 November 18 »
You can try this tester I wrote http://www.cpcwiki.eu/forum/amstrad-cpc-hardware/wanted-working-memory-expansion-for-cpc-464/msg165794/#msg165794
Only pay attention to the first "page" of the tests as the rest is only if you have more ram.
Thank you very much. I will try it.

Offline jonnixx

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Re: Re: Quick and dirty RAM test for CPC
« Reply #5 on: 20:53, 08 November 18 »
Hi,
1., The RAM test is OK. 64kb found. Thank you.
2., if the machines are cold, then all ok (load HxC manager and any other game)
3., if both warm (half hour): HxC manager can not start, at all, error message: HxC ERROR_ATTACHMEDIAFAILED
4., and not stable the floppy handling on the oldest CPC 6128  (sometimes: Can not read Drive B)
May i get any idea?Regards,Jonni

Online Bryce

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Re: Re: Quick and dirty RAM test for CPC
« Reply #6 on: 09:32, 09 November 18 »
What power supply are you using? And are you using the same power supply on both machines?

Bryce.

P.s. You should possibly open a new thread for this discussion....
I've split this discussion into a new thread.
« Last Edit: 09:34, 09 November 18 by Bryce »

Offline jonnixx

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Re: Re: Quick and dirty RAM test for CPC
« Reply #7 on: 10:12, 09 November 18 »
What power supply are you using? And are you using the same power supply on both machines?

Bryce.

P.s. You should possibly open a new thread for this discussion....
I've split this discussion into a new thread.
Hi,
Thank you very much.
1., Yes, same power supply. I bought on ebay for 6128. MDL-0530 DC5V 3A, JCH
-1201 12V 1A
2., Now, i am testing with another power supply (5V 2,5A)
Regards,Jonni
« Last Edit: 10:23, 09 November 18 by jonnixx »

Offline jonnixx

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Re: Re: Quick and dirty RAM test for CPC
« Reply #8 on: 12:32, 09 November 18 »
What power supply are you using? And are you using the same power supply on both machines?

Bryce.
Hi,
1., both 6128 tested with two different power supply: same error,after half hour
It was a good idea, thank you.
Regards,Jonni