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Re: My Very Long Bus Adventure.

Posted on 2023-10-16, 20:49

Got it, makes sense, appreciate that detailed explanation. Probably makes sense to check the voltage coming out of that VRM? Does it emit the typical "no graphics card installed" POST error beep? Exactly this, one long beep then three short. Quick pause between first two short beeps. No output to …

Re: My Very Long Bus Adventure.

Posted on 2023-10-16, 20:34

And indeed, the RGB524 is a 5V tolerant 3.3V chip. That is interesting, I wonder why the VRM is needed. I can def put a meter on it. If you still wonder why there is a VRM, I am sorry for using expert-only terms which were not clear enough. "a 5V tolerant 3.3V chip" means that this chip is a …

Re: My Very Long Bus Adventure.

Posted on 2023-10-16, 20:29

Here’s the other card I acquired. This one took a year from initial conversation with owner to arrive to me, I thought for sure I was being trolled or scammed with the length of time between updates on locating it and trying to find a way to ship. Fortunately this one works. I believe this is quite …

Re: My Very Long Bus Adventure.

Posted on 2023-10-16, 20:10

The image of the Motion 771 is a little blurry, but it appears to have a VRM under the VGA port. Perhaps the memory chips are 3.3V? If possible, measure the voltage coming out of it. It is a voltage regulator. The lettering "VR" on the silk screen is clearly visible. On the other hand, VL is a 5V …

Re: My Very Long Bus Adventure.

Posted on 2023-10-16, 20:05

Recently acquired this Diamond Stealth 64 VLB card, based on the Vision 964, but unfortunately I’m seeing corrupted graphics. Any ideas, possible to repair? I’ve tried cleaning the contacts and tried it on a couple VLB motherboards. Check for cold solder joints. Seems like 1-2 data bits are not …

Re: My Very Long Bus Adventure.

Posted on 2023-10-15, 13:51

Been a minute since I’ve last updated, managed to snag a couple more interesting cards. This #9FX Motion 771 being one, unfortunately it is showing no signs of life. I’m not sure if this is the 2MB or 4MB version, another member here, Anonymous Coward, mentioned his 4MB version has chips on both …

Re: PowerVR Fun Thread

Posted on 2023-07-10, 12:29

I got it working again this morning but eventually you’ll see this. Attached a couple pics of current state of pins. With the way a few of the pins are smashed in I don’t see a way to improve this much more on my own.

Re: PowerVR Fun Thread

Posted on 2023-07-09, 19:08

Well, thought I had the pins seperated, maybe I do. I can’t seem to get anything running on it so far. Can anyone recommend a specific driver and the simplest test I should be able to run to confirm functionality? This is the Midas3. The hardware is detected, so a bit of a good sign.

Re: PowerVR Fun Thread

Posted on 2023-07-08, 20:45

Attempt repair? Just got a Midas 3 in the mail, unfortunately there are some bent pins on one of the IC’s. Before I attempt to power it up or send it back, should I attempt a repair or is this a lost cause?

Re: PowerVR Fun Thread

Posted on 2023-07-02, 22:13

If it was just a die shrink shouldn’t it run the same PowerVR games as the PCX1/2? I’m reading that several games don’t run on the Midas. I don't know for sure about the hardware aspect, but I believe the main issue for compatibility for the Midas3 is poor and undeveloped drivers. Could you not use …

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