Bad TRAM?

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Krokodil
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Bad TRAM?

Unread postby Krokodil » Fri Jun 05, 2015 1:45 pm

Just to make sure I understand right.

I'm correct in assuming the faintly visible horizontal scanlines on anything with textures is a sign of atleast 1 faulty TRAM module on an EMXI board?
:O2: O2 - (Mantadoc) - R5K - 200MHZ - 128MB RAM - 6.5.30
:Octane: Octane - (Montrealais) - R12K - 2*360MHZ - 1024MB RAM - EMXI. - 6.5.30
Alphaserver DS10 - (Vandoc) - EV6 - 466MHZ - 256MB RAM
Sun Ultra 5 - (Quedoc) - UltraSparc II - 400MHZ - 512MB RAM
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robespierre
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Re: Bad TRAM?

Unread postby robespierre » Fri Jun 05, 2015 3:36 pm

viewtopic.php?f=3&t=16728901
if the lines rotate with the object, I'd say yes. what seems to happen is that the pins get pulled up.
:PI: :O2: :Indigo2IMP: :Indigo2IMP:

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Krokodil
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Re: Bad TRAM?

Unread postby Krokodil » Fri Jun 05, 2015 4:21 pm

robespierre wrote:http://forums.nekochan.net/viewtopic.php?f=3&t=16728901
if the lines rotate with the object, I'd say yes. what seems to happen is that the pins get pulled up.


Yeah the lines do appear to move with the cube. Not surprising that they desolder themselves since they get so damned hot. If it wasn't for the pixel clock bug I'd just move up to a V6 instead of looking for new TRAMS, which will inevitably burn up as well.
:O2: O2 - (Mantadoc) - R5K - 200MHZ - 128MB RAM - 6.5.30
:Octane: Octane - (Montrealais) - R12K - 2*360MHZ - 1024MB RAM - EMXI. - 6.5.30
Alphaserver DS10 - (Vandoc) - EV6 - 466MHZ - 256MB RAM
Sun Ultra 5 - (Quedoc) - UltraSparc II - 400MHZ - 512MB RAM
ASUS K55VD - (Mapleglen)- I5 - Dual Core 2.5GHZ - 8 GB RAM
Dell L502X - (Algorail) - I7 - Quad Core 2GHZ - 6 GB RAM

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Krokodil
Posts: 88
Joined: Fri Apr 17, 2015 2:32 pm

Re: Bad TRAM?

Unread postby Krokodil » Fri Jun 05, 2015 4:48 pm

Testing them one at a time on a Solid Impact board, since the EXMI won't work with one of it's TRAMS missing.

One appears not to work at all, though it is recognized and the other has weird magenta colored textures.
:O2: O2 - (Mantadoc) - R5K - 200MHZ - 128MB RAM - 6.5.30
:Octane: Octane - (Montrealais) - R12K - 2*360MHZ - 1024MB RAM - EMXI. - 6.5.30
Alphaserver DS10 - (Vandoc) - EV6 - 466MHZ - 256MB RAM
Sun Ultra 5 - (Quedoc) - UltraSparc II - 400MHZ - 512MB RAM
ASUS K55VD - (Mapleglen)- I5 - Dual Core 2.5GHZ - 8 GB RAM
Dell L502X - (Algorail) - I7 - Quad Core 2GHZ - 6 GB RAM

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jan-jaap
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Re: Bad TRAM?

Unread postby jan-jaap » Sat Jun 06, 2015 4:34 am

Sometimes cleaning the connector with alcohol and reseating will do the trick.
Now this is a deep dark secret, so everybody keep it quiet :)
It turns out that when reset, the WD33C93 defaults to a SCSI ID of 0, and it was simpler to leave it that way... -- Dave Olson, in comp.sys.sgi

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Krokodil
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Re: Bad TRAM?

Unread postby Krokodil » Fri Jun 19, 2015 12:16 pm

I just bit the bullet and obtained an "MXE" board with 2 TRAMS and installed it, all the issues with the lines are gone and the Maccau demo does not have anymore glitches. :)
:O2: O2 - (Mantadoc) - R5K - 200MHZ - 128MB RAM - 6.5.30
:Octane: Octane - (Montrealais) - R12K - 2*360MHZ - 1024MB RAM - EMXI. - 6.5.30
Alphaserver DS10 - (Vandoc) - EV6 - 466MHZ - 256MB RAM
Sun Ultra 5 - (Quedoc) - UltraSparc II - 400MHZ - 512MB RAM
ASUS K55VD - (Mapleglen)- I5 - Dual Core 2.5GHZ - 8 GB RAM
Dell L502X - (Algorail) - I7 - Quad Core 2GHZ - 6 GB RAM


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