VOGONS


First post, by tpowell.ca

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I'm having an issue with an Nvidia GeForce GTS I acquired.
The card appears to work just fine with the exception of VGA output.
The problems in short are:
- Ghosting
- Dim luminance, excessive saturation
- Diagonal banding in graphics modes

The card does not have any visible damage, and does not have a DVI output.

I've read that this was a common issue with cards of this era, but no clear mention of any fixes.

Note: I tried different cables and monitors with no effect. Different cards work perfectly fine however.

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Reply 1 of 2, by darry

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tpowell.ca wrote on 2022-01-24, 02:28:
I'm having an issue with an Nvidia GeForce GTS I acquired. The card appears to work just fine with the exception of VGA output. […]
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I'm having an issue with an Nvidia GeForce GTS I acquired.
The card appears to work just fine with the exception of VGA output.
The problems in short are:
- Ghosting
- Dim luminance, excessive saturation
- Diagonal banding in graphics modes

The card does not have any visible damage, and does not have a DVI output.

I've read that this was a common issue with cards of this era, but no clear mention of any fixes.

Note: I tried different cables and monitors with no effect. Different cards work perfectly fine however.

This discusses sharpness issues due to improperly designed RF filtering on VGA output : http://web.tiscalinet.it/creeping_death/guide/aamodifica.htm

That being said, I am not certain if what is seen on the pictures you shared is related to this or to another phenomenon .

Reply 2 of 2, by pixel_workbench

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I have a gf2 gts with exactly the kind of problem you describe. Comparing it with an exact same version that works with a multimeter, I couldn't find anything obvious on the analog output path that would indicate an easy fix, like a broken capacitor or inductor, or noticeably different resistance values. Unless more information becomes available, I would consider that the gpu itself is damaged in this case.

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