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About IIfx

- Birthday January 24
Profile Information
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Gender
Male
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Location
Northern Virginia
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Interests
Computers, Telecommunications, Photography, Aviation
Profile Fields
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OCCUPATION
Information Technology - Cyber Security
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Very nice find! The Am29000 based Apple graphics is a hard nubus card to find. I've been looking for a long time, basically gave up when the last one on eBay went for astronomical prices. Supposedly that card works best in a IIfx. The aviation-grade case is awesome. Don't change it. I really like the breakers they added on the power input. Any of the old data collection software left on the HDD? I'm assuming they were wiped.
- 47 replies
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Macintosh II Mac Alley accelerator removal
IIfx replied to karrots's topic in Mac II, Quadra & Centris
It looks like it's mounted just like the original CPU into the pin socket. Pull it out evenly to not bend the pins on the bottom of the card. -
Recap job doesn’t look good on the IIci. Never was a fan of using through hole parts in a SM application. If it works, it works, but consider redoing it with surface mount polymer or tantalum caps. Nice portrait display, uncommon find!
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Picked up a custom made G4 accelerator off of eBay. Someone is doing these as a hobby and selling small volumes of accelerators. It's a modded Apple 800mhz board with a 7455 chip soldered on and the required mods to set the clock to 1.5ghz. Paid $150 on eBay, works great. Scores 857 on Geekbench. The system is reading the CPU as a "133mhz" G4 but it's clearly running at full speed when benchmarked. Very happy. Only minor issue is the new heatsink bumps into the back of the superdrive, so I took out the superdrive. Anyone know of any shorter depth drives that would clear this heatsink? It can'
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If it’s hot, it’s probably not an L88M and it’s a reseller fake with the original markings wiped off the top.
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Well, it isn't a Performa 630. It's a 6320CD. No idea how this happened, somehow the seller wrote "Performa 630", the photos showed a Performa 630, but the computer front panel says 6320 and the logic board is a 6320. The serial number matches what was in the listing. Totally confused. The seller seems to be as well. I don't mind it that much, I think I have a random Q630 logic board somewhere. But completely crushed the 96 630 isn't really a thing. Weird thing is there is a P630 with plastic just as good as this 6320, supposedly. So, performance of the "P
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The front case is labeled Permafrost 630CD, so I assume this wasn't a 62/63xx case swap. Exited to have it and take a look inside.
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I bought a Performa 630CD on a whim off of eBay. The price was low ($70 total) and the case looks immaculate. Why? The manufacturing date on the back is oddly late for a 68k, 6/20/1996! Deep into the reign of Gil Amelio and the PowerPC era. Was it an oddball product of clearing old inventory? Possibly. A refurb? Also possible. The fact that the case was common to the 6200/6300 probably made it even easier to keep putting out 630's for those customers that demanded a 68k. It's possible Apple just had a huge overstock of 630/640 logic boards and used up the stock rather than taking a write off.
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Probably need to replace capacitors, start with the axial ones that are deeply involved with power delivery on the motherboard.
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Any interest in 16MB Mac IIFX memory modules?
IIfx replied to hyperneogeo's topic in Mac II, Quadra & Centris
I'm interested in a set of 4 - still possible? -
Glad you found that tidbit potentially useful. The cooling design of the 6100 is barely sufficient. Once you add a hot card (486DX2 or a G3/G4) it will cross the thermal threshold under load. Age has made these less stable, with leaky caps. I recapped mine and it's now super stable. 6100 is a good machine but it isn't perfect. It's a representative pizza box system of 1994, along with the SPARCStation 4/5 and SGI Indy. All of these had their benefits and their target markets. I'd say a 6100 is most fun with the PC Compat card. Otherwise it makes a good 93/94 era Mac gaming machine.
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The IIfx is a wonderful machine, hope you will get many years of enjoyment from it! You lucked out as your board is 100% SMD Tantalum. Most IIfx boards have two of those cursed cans in the upper right corner by the PRAM batteries. Nice Radius vidcard with the photobooster. I have a similar card but with a separate Photobooster on its own Nubus card.
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A Mac IIsi, An iMac, A SCSI2SD Card and Basilisk
IIfx replied to Iamanamma's topic in Mac II, Quadra & Centris
Apple used Maxell from the factory, and they leak acid in an explosive fashion. Fresh PRAM is a very good idea to preserve the system regardless of battery make. -
A Mac IIsi, An iMac, A SCSI2SD Card and Basilisk
IIfx replied to Iamanamma's topic in Mac II, Quadra & Centris
!!! Is that PRAM battery a Maxell? If so remove it ASAP. The red color drew my attention. Those leak and destroy the logic board. congrats on getting the SCSI2SD going -
I had the same thing happen recapping my 6100, just a single dry joint with minimal solder not actually making a solid connection. always feels good when something broken comes back to life!