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Very interesting post, I have a hard time continuing because my English is not very good, but from what I understand, that ROM does not work on any card with that VIA chip, right? I found this very cheap card that does have an EPROM chip, but it has 3 SATA and 1 ATA. I don't know if it would be...

instead of 66/37 I meant 63% tin - 37% lead (63/37)

Your comment puts me at ease. I started using 0.76 balls with 66/37 and currently I feel more comfortable working with 0.65, and so far it works well for me. I do have to say that the CPU stays closer to the PCB and the balls tend to "collapse" a little, they stay flatter. Could this be a...

I use the Apple and Alt keys, together in the photo, original Apple keyboard, Alt=Option. Command-Option-P-R, I've made three chimes and it's still the same. Three commands are used in Open Firmware: reset-nvram set-defaults reset-all Same error.

Hi, I'm working on this iMac and, even though I put a new battery in it, every time I start it up it shows me this message on the screen, along with the folder symbol with a question mark, and after a few seconds it boots from the first partition. Even if I select another partition in the boot...

Hi, after finding a compatible SSD, I tried overclocking the bus. IT WORKS! Although the system profile still indicates 233MHz, Gauge Pro tells us that we have a 290MHz CPU and an 83MHz bus. It works with two PC100 RAM modules.

I don't know if the inverter pinout will be the same as for a 17", but it seems that to install an LED kit I must use the 4 upper cables.

I'm bringing you some news. I was investigating how LCD screens work and I consulted a friend who has repaired one. I verified that once the image is turned off, focusing with a flashlight you can still see video, so the problem is in the lighting, either the inverter or the tubes that...

You're right about that. I was counting on being able to use a generic card. I have a couple of generic ones that I made work with a Lombard, the problem is that they do not allow target or boot. Custom firmware would be required if it is designed completely.

Seeing that each of us would use it differently, perhaps the best option is a mezzanine to PCMCIA adapter, perhaps double PCMCIA as in the old powerbooks. This adapter would be easier to make: mezzanine connector to flat cable, and in the case, from flat cable to PCMCIA (adding necessary...

Hi, I'm starting a lot of posts these days, I hope I'm not bothering you. I was reading about the Mezzanine port on the iMac G3 tray loading, and I see it was a "normal" PCI port under a non-standard connector, the mezzanine. Is this true? If so, would someone with circuit design skills be...

Thank you so much for recovering the link!! Now I know how to do it. I'm going to write it down and save it so I don't lose it again. We've preserved other information!! When I have changed the HDD for SSD I will try it.

Thanks for your reply. Can you find me a photo of those two components that may fail? so I can identify them, I'm not used to working with screens. The symptom repeats itself every time I start it, I don't really know how to diagnose it. In my question about the wiring, I was wondering what...

nothing?

Well, I don't remember, I only keep this link that doesn't work and a note that I should move two "0ohm" resistors. bus overclock Good find, those three resistors on the motherboard, although they should not be in use, because for 66MHz there should be 2 resistors there. The schematic...

thanks for the information. Then I must add R140 to reach 83MHz. I can't locate R139. About 15 years ago I already did this FSB overclock and it was stable at 83MHz, with PC100 RAM.

Hello I have 233MHz OC at 300MHz

Hello, I am writing to you because the information on the Internet is getting lost. Many years ago I overclocked the FSB on one of these iMacs from 66MHz to 83MHz, but I don't have the documentation and I can't find anything on the Internet. Does anyone remember how to do it? Any photos and...

Hello everyone. I recently found a very cheap iMac G4 700MHz because it wasn't working. When I checked, I saw that it was the PSU. The optocouplers were failing. I changed them and the power supply has come back to life. Now it turns on and makes a "chime" sound but the screen always does the...

Exactly, the PLL is not there, it is a variant of the previous motherboard.