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Checked the remaining capacitors. Only 13 pieces: 7 --show knowingly incorrect values; 2 -- completely not working, because the tester could not determine them; 2 -- the values are close to marking, but I consider them defective; 2 -- looks completely working.

@Kai Robinson, You're right! Today several capacitors fell out and tested them on the resistor tester, the results surprised me. According to the marking, it is 16V 47μF, And in fact, μF has changed in 30 years. I've always believed that the value can decrease, and here it increases.

@ClassicHasClass, Yes, it's interesting. 😅 Today I replaced the motherboard, and got the same OS frosts and sometimes Kernel Panic. When it freezes, the processor heatsink gets very hot. And yes, every time the envious could be ~almost~ guaranteed to reproduce -- if you open a browser and try...

Not so long ago, I received a 1.42 Ghz dual-processor daughtercard from FW800, which I immediately installed in the FW400. At the beginning, I didn't notice any problems, but later I began to notice oddities that had never happened before: The machine can freeze tightly at any time: installing...

@Genjoke, @trag, That's interesting. I didn't know about such an opportunity, it would be interesting to try.

@trag, I once used debug mode to boot Mac OS 9 to MDD. But for this you need to get the image output on the monitor dev / 13fff encode-int " AAPL,debug" property mac-boot or nanokernel debug log dev / 2000000 encode-int " AAPL,debug" property mac-boot

@trag, The board says "Power Macintosh 8100/80" /100 and /110 and AV options are other. The /80 has an HDI-45 connector, and I also paid attention to this so that I would not have problems with installation and because of the possible differences in the case.

Today I ordered 16V 47μF SMD capacitors, but delivery from China will probably be very long. I also ordered a motherboard on eBay in case the trick with capacitors does not help to revive the motherboard. 820- 0473-G -- motherboard that was originally. 820-0557-B -- motherboard from eBay. It...

Hey! @Genjoke, I have a PM9600/300 and Radeon 7000 64 Mb works perfectly with this computer. I have several boards installed in this order: 1. Wi-Fi Cisco Airpci 350 2. 2-pots USB card 3. Radeon 7000 64 Mb 4. Empty 5. Jackhummer SCSI-Card 6. Empty I also tried to use a SATA Card on the...

@Kai Robinson, Thanx, I'll check it out -- I'll replace the capacitors and resolder other chips whose contacts look the same as in "dust". When I'm done with this, I'll let you know the result.

@Kai Robinson, Of course. I took the board out of the body. Near some capacitors I see strange white traces, and like dust on the contacts, but it is not washed. At first I thought there was a leak, but it doesn't look like it. Otherwise, except for some strange soldering on the board, I...

@Kai Robinson, A new battery is installed, the ROM is installed in ROM slot. When I got it, here instead of a battery there was a design of 2x AA 1.5 batteries, as far as I understand, it only gave 3V, not 3.6V as it should be. One of these batteries was leaking, and it dried up.

@trag, Of course, the motherboard is washed from dirt and old thermal grease, the radiator is also washed. A new thermal grease that I use in all my Power Macs is smeared. I found a motherboard with part umber 820-0557-B on sale, on the board I have 820- 0473-G. Are there different revisions of...

Hi there! The other day I got a Power Macintosh 8100/80, which has long wanted to experiment with vintage machines. But it turns out that the salesman wasn't honest with me and sold me a non-working... The Mac turns on, there is a bong, the PDS of the video cards gives an image - the gray...

@joevt, I'm interested in the built-in diagnostic tools. For some reason, I always believed that Power Mac has it. 🤔 Perhaps various materials about OpenFirmware in SUN computers have created confusion in my head. Indeed, if I do not connect the network cable to MDD and reboot after turning on...

Hi! I have long seen reports that OpenFirmware (OFW) can run tests of equipment that is equipped with self-testing instructions. On different sites you can find many similar messages that mainly link to this site. I tested it on QS and MDD. So, I enter the OFW and turn on diag-switch? And...

I didn't know such keyboard shortcuts, I'll have to try. (y)

Hah! My friend from another forum managed to find the original OS X 10.4.6 image, which can be easily booted from a USB drive. You can check it out: 1. Download #32 from here 2. Deploy to USB sudo dd if="/path/to/tiger-10-4-6-ppc.iso" of=/dev/rdisk4 bs=1m status=progress 4. Boot it! probe-usb...

I use this image on my PowerMac: MDD, QS, G3 B&W, G3 Minitiwer and it works great. :) Before I figured out Sil3112, I used a SATA<->IDE bridge, and it worked great if the bridge didn't have any problems. But I had others: I got it from Aliexpress. I just looked carefully at the screenshot and...