Recent content by obsolete

I'm about 3 hours away and would be willing to help if you can't find someone closer. Send me a PM if you would like to discuss.

I'm not sure. I think it would be worth opening another thread if you can't figure it out. Honestly, most of the fun for me in stuff like this is getting the hardware working; once I do, I tend to lose interest and move on to the next thing I want to try to get working...

Interesting, thanks for digging that up. I will play around a little bit more between 5960 and 5961.

I had some time last night so I tried changing the device ID in the ROM to 0x5964 on a card that would otherwise be 0x5960. This was the result (viewed with an NVIDIA AGP card): As one might expect, it didn't work. My conclusion is either that 0x5960 is set in the hardware in a way I don't...

That board looks like it should only need compressed air, and maybe a soft brush. It would be wise to replace the electrolytic capacitors at this point. The red dots are the glue used to hold surface-mount components in place during soldering and they are harmless.

@herd that's really cool, thanks! I've gotten a lot of good video card info from VOGONS. It's a great resource. An eBay seller offered me a good price on a PCI Radeon 9200 SE. I haven't gone for it (yet). Based on the little research I've done, I expect the 9200 SE will have a device ID of...

Formatting aside, this is useful info. Thanks for posting it.

There was a G5-compatible PCIe X1900 GT, and its ROM is on The Mac Elite. As far as I know, nobody has gotten the AGP version working. The X1300 is, in theory, 1/4 of an X1900. So as a prerequisite, if the AGP X1900 could be made to work, then maybe the X1300 PCI could be made to work. Each is a...

Hmm, yeah, that's an X1300. Big firmware lift to get that working, definitely not something I'd be up for.

Thanks guys, yeah, having some fairly low-stakes fun with these old PCI cards. I finished up jt's VisionTek card today. It got a recap, and I replaced the diodes with STTH310s, which are 1.7V forward voltage. I measured 843mV across them while the card was running, so they're definitely doing...

There are no failure-prone RIFA safety caps in the SE power supply or on its analog board. You were having some display issues before this happened, right? I suspect the flyback transformer is what failed. The SE and SE/30 power supplies are compatible, but you may need an analog board repair...

Do not attempt to power that on before it has been cleaned and repaired.

You can get a SWIM that will work in your SE from Kero's Mac Mods in Japan for $48: https://en.infinityproducts.co.jp/product-page/super-wh-iwm-swapper-plcc44-to-dip28-swim-adapter For an extra $16, you can also get flashed ROMs, but they're not pin-compatible, so there's a little extra work...

I had some NTD40N03s on hand, so I tried swapping them in for the NTD14N03s. As expected, no improvement. Still burning hot. Here's the reference schematic for this regulator: The VisionTek card doesn't implement it exactly as shown above, but it shares one thing in common that I hadn't really...