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Custom Quadra 630 VIdeo Woes

LaPorta

Well-known member
Hi everyone,

A few years back, I built a custom Quadra 630 for my kids. They have loved it ever since. Of course, my young nephew (with a penchant for destroying things), knocked it over, and bent the video out cable and adapter from the small video out board that the 630 has. It was a poor design choice by me where it was placed, but I never thought someone would just go and pulverize the thing. Anyhow, it bent a bit, and I was afraid the connector was toast. I originally got no video, but when I pushed the 15-pin connector back where it should have been, the video worked, but was somewhat blue (like I was missing a signal). I have used this with a VGA adapter for years with no issue, using either 640x480 or 800x600 with an LCD monitor. However, now, the machine outputs only 512x3-whatever the other number is (I always forget that resolution). So, I pulled the board out, and reflowed the pins of the header to the board, verified correct continuity, and also checked that there was no inappropriate continuity between pins. This did not solve the blue issue. So, I re-heated the solder points of all the upper surface resistors and capacitors. That took away the blue hue issue (I figured there would have been a pulled and stressed solder joint). However, I am still stuck at the lower resolution, with no way to change it in the control panels. I also tested this with another VGA adapter I know to be good in case the adapter was damaged, but there is no difference.

I am stumped here: is something preventing the machine from outputting 640x480? I have thousands of colors available in the Monitors control panel, so the machine is using its appropriate amount of VRAM. Is it somehow not detecting that the monitor is capable of those resolutions?

I guess as a last resort I can buy a new board from somewhere, but I would hop to fix this one.

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