Recent content by ironborn65

Did you try it yourself? When I attempted the same procedure on a 2011 MacBook, Internet Recovery failed with a “server not available” error. I also tried the commonly suggested workaround of changing the system date via Terminal (e.g., using date before starting the recovery), but it didn’t...

@bibilit , is an ISO image just fine?

All the cables were unplugged, and the hard drive and SIMMs were removed. I managed to get it to boot; it’s now (as expected) stuck at the “?”. Next, I’ll install a new glass panel and an SSD. However, as with many older iMacs, I’m having trouble creating a bootable macOS USB installer from my...

I got this iMac for free. https://support.apple.com/en-us/111983 It does not boot, "BEEP BEEP" ... and without the glass ... it could be my file server for the other macs

"muddy river"

I've updated it to 10.3.9, and it seems to fly pretty well to me. I read different suggestions here about downgrading it to even 9.2.2 or 10.1, why? But yes, it depends on how I want to use it :) At the moment it will sit in the livingroom to show its nice design and to let friends play music...

I’m quite happy with this. The colors of the picture are false, the Mac itself is pure white while the keyboard is terribly yellow, so a bit also the mouse. The speakers are perfect! Ah, I have the box. I’m planning for RAM upgrade. Any recommendations for the MacOS X upgrade?

@leonlas , I'm sorry, I can not tell

I have a decent SE/30 logic board, slightly affected by battery acid. After adding a couple of bodge wires, it works almost perfectly. I replaced the original RTC with a new ATTiny RTC module. I installed 4 × 4 MB SIMMs in Bank 0 (16 MB total). The machine boots in 32-bit mode using a BMOW...

thanks, can u pls provide the URL? I got this https://www.utsource.net/sch/CY7C128A-20VC.html Replacement Models If the CY7C128A-20VC is unavailable or obsolete, consider the following alternative models: CY7C128A-25VC CY7C128A-35VC

linking a thread about the same topic https://68kmla.org/bb/threads/iici-cache-card-failures.42501/

UTSource Digikey Mouser Conrad have none, are there any compatible non obsolete chips?

I'm adding another sad story here. I got 4 cache cards, that have been gently cleaned, recapped and cleaned and checked and cleaned ... One of them makes the chime of death, while the other three exhibit the same symptom as @Phipli. Yes, the central one has the VLSI with a couple of pins bent...

Hey, I’m insisting on this CRT. thanks @Byrd I added Dow Corning Dowsil 3140 / 3145 RTV silicone gel, and the flyback is no longer arcing, but the VSYNC is still missing—in the sense that there is only a well-defined horizontal line. When I first started, there was a short vertical image...

Updating the thread. I've replaced the C418 cap with one with the exact capacitance and a few more around the vertical sync, which showed a weak ESR and loss. Namely them all: C414, C526, C404, C523, C522, C512, C418, C519, C517, C921, C920, C519 Now it's fully working. Another device was...