Your +12V is bad! We now have a much more narrow set of possible problems. There is probably a problem with your power supply. Try unplugging the power supply from the logic boar…

Ok I can try this tonight. What do you mean by this though? The black wire? 3. Touch the black probe to a pin of the power supply connector that is connected to a black wire. Ho…

Thank you. Is it possible to open original Portable's battery without damaging it? How?

Ummm...there were CPU upgrades for MDD/Xserve http://eshop.macsales.com/item/Sonnet%20Technology/XG4D1800/ That's the Sonnet one and I am sure there was another I saw a while bac…

The cell used in the portable's battery is here: http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=842-1002-ND There are three of them in series. You can c…

There is no point to downclocking the CPU - the G3 upgrade is independant of the existing CPU itself (that is, it is not used), nor are you going to "cook" the existing 601 CPU (it…

Hmmm... That's not going to be easy unless you have an 8100/80 to look at. The multiplier on the 100 and 110 MHz machines is three, so if you change the oscillator to 40 MHz, the C…

Calling all experts... Has anyone of you ever done this or have any inside info on how to do it? What I would like to do to the above mentioned machines is: 1. Install 40 MHz os…

How to test the power supply: 1. Turn on the Mac IIfx. 2. Set your volt meter to 20V range DC 3. Touch the black probe to a pin of the power supply connector that is connecte…

I finally found a copy of Cliff Joyce's masterpiece "Calculator Construction Set" thanks to waynes.com. I haven't tried it yet (I really don't want to unshrinkwrap this rarity!) bu…

2. I also tried to boot from the hard drive the was in my SE (it had System 6.0. 8) , also a no go. I didn't even hear it spin. Click to expand... AHA! Your +12V is bad! We no…

Ok got some testing done, not good news. 1. AfterMAc's drive is good (tested on my SE), but the IIfx just gives me a disk with an X when I plug it in and try to boot from a disk (…

Ooo... just sent an email. I work in Ann Arbor.

For anyone interested here's a link to a Lemswap post for a free 128K Mac, upgraded to a 512K. NOT my sale. http://groups.google.com/group/lemswap/browse_thread/thread/4e81c78c9e…

Actually I swapped the chips out of a dead Superdrive unit so it should function as a 1.44MB drive. Tempest Click to expand... Even better!

Actually I swapped the chips out of a dead Superdrive unit so it should function as a 1.44MB drive. Tempest

I think it would be more interesting to convert it to USB (same thing, just new chip which can be found pretty much everywhere) course I think old keyboards on new systems are jus…

You could try removing the drive and physically hold it in your hand and twist it back and forth vigorously, as if trying to make the platters inside turn back and forth. This com…

I'll crack open my spare SE tonight. Not only does it have two floppy bays (which means I won't have to take the other one out), it also has a good working HD installed. I can kil…

Notes towards that approach can be found here and here

I'll crack open my spare SE tonight. Not only does it have two floppy bays (which means I won't have to take the other one out), it also has a good working HD installed. I can ki…

If the drive doesn't spin, the bearings are likely "frozen up" and the spindle motor can't break it free to start it spinning. You could try removing the drive and physically hold…

My guess at this point would be a lack of power to the drive. You should be able to hear it do *something*. Click to expand... The drive must be receiving +5V because of the X …

Sorry for the lag, I was away from my workstations this weekend. The second image you posted, Tron, works fine. Here are the numbers: CINEBENCH 2003 v1 **************************…

Right, the Blueberry is finished, with 10.4.11 on a 10gb hard drive and the USB wifi dongle. Taking apart and upgrading etc took far less time than before, just a couple of hours..…