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Kind of a necro, but what the heck... Do you think the Samsung KM4132G512Q-10 would work for this purpose? I have a couple thousand of them... However, they're 2MB, 256K X 32 X 2, which is 2MB, not 1MB. So might be a drop in replacement if the address lines are there, or if the originals...

I'm not familiar with the particular models, but some of the iPods used a PATA ZIF 1.8" hard drive. The interface is PATA (parallel). The connector is a ribbon cable with a ZIF connector. The spinny drive is tiny. These drives were also used in the Dell Latitude D430 and D420, and some HP...

Probably not useful information, but the case for the C600 is the same as PowerComputing Corp. used for the tower version of the Power 80/100/120 -- their PM8100 clones. At this point the PCC Nubus clones are probably rarer than the C600.

I wonder if that bodge wire is there to carry extra current. It can be tough to get enough trace volume to carry good power supply current. Not really where you were going with that, but IIRC, those are these which are still available, but EOL. There are probably substitutes available...

I ran a passive star of PhoneNet in my house with zero problems. It's still in place, but I don't have anything active on it at the moment. I wired the house with 37 cat. 5 jacks all terminating in the wiring closet. To form the star, I took a 12 port cat. 5 panel and wired some of the...

non-Kansas CPU slot pinout: https://sphinxgroup.org/Apple_pinouts/CPU_Slot_Pinout Note this is only the upper row of 146 distinct pins. The lower row is, IIRC, a long set of GND with some voltage on hte little separated segment. I found some notes. The long continuous segment at the...

edit time limit expired so additional post... Did you change the CLKID pins on the card? They need to be adjusted if you're moving outside the 45 MHz - 50 MHz realm. If you look at the third image in your first posting. IMG_1521.png and zoom in on the edge connector, you'll see that pins...

Did you change the CLKID pins on the card? They need to be adjusted if you're moving outside the 45 MHz - 50 MHz realm.

First, I'm quite enjoying the progress you gentlemen are making on this project. Second, the idea above is one I quite liked when I was considering adding back the 3 lower Bandit PCI slots to the Umax S900/J700. The secondary CPU slot on both logic boards has (almost) all the connections...

You can replace it with the same value fuse as is already there, but replace it with a "slow blow" fuse, not a quick (fast?) blow fuse. I also recommend installing a fuse holder in case you must revisit the issue. As to the underlying cause, there was a claim about the cause, way back when...

I have a couple of the 750GX cards for the PCI PowerMacs (x500, e.g. 9500). They do not require any drivers or ROM patches to operate. As far as I can tell, there's no where on the card firmware could be stored. Of course, if one wishes to run at a speed other than 500 MHz, one needs the...

I think that question is better pointed at @davecom . He's got the experience refurbishing Minis. It's been a few years since I've had one apart.

Absent a faulty device, the only way I can see that @BespokeMan 's would overheat and @davecom 's wouldn't is if there's a very different and very poor voltage regulator on the former's. So you guys might want to compare what part is actually being used for the voltage regulator -- U1 in the...

I was browsing the items from Memory Master and they have a bunch of the PM6100/7100 ROM modules for about $13. https://www.ebay.com/itm/175602575946?epid=1228687524 Posting in case there are folks with a machine where the ROM was pulled. That's the 341-0741. I think it will also work in...

Thanks, @stynx I appreciate the replies.

The CS5157 on the XLR8 card is the voltage regulator. The two 8 pin chips next to it are the power FETs.... Oh, never mind. Stynx beat me to it.... Oh, I will add one thing, my guess for SW4 is an option to run a ribbon cable out of the computer case and a little circuit board with the speed...

I'm curious as to which Carrier card you were testing with. Somewhere around here I posted undocumented speed settings for one of the carrier cards (XLR8?). It's been too long and I don't remember which one. They give some speed settings in the instructions that came with the card, but it...

Where did you see the dual CPU ANS card? As far as I know there was only ever one of them, at least only one in the wild and word was it required a revised ANS ROM to work properly. I thought a fellow in Germany had it last, but "last" was back around 2002.

If you're having trouble finding cheap MSATA SSDs on Ebay, Newegg sells a 128 GB for ~$21 and the 256 MB for about $25. That may be a "sale" price, but these have mostly been on sale for the last three years -- and at lower prices eighteen months ago; 1 TB was about $45 back then...

Kingston made a bunch of modules for HP that work well in the Q605/LC475. They are HP part # D4893 (128 MB) or D4290A (64MB, note there's an HP 4290E DDR2 module out there) and the Kingston part number for the 128 MB is kmm53632000