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Going under the assumption that all of Eric Woo's chips really are authentic pulls and not rebadged, I have a couple questions (which we may or may not have discussed privately by email in the past)... 1. Have you tried using thermal tape and a heatsink (applying it and then removing it) to see...

That kind of testing is the best you can do to determine if it has the full FPU. The next step is to see how high you can overclock it using the fastest VRAM possible and board recapped with the best capacitors. Then you just need to measure the temperature of the CPU while running an...

More specifically, adding the CPU to your computer, then switching on power and launching an app like Norton System Info (or another benchmark utility) which will tell you if the FPU is present or not.

But where would you be able to reliably and consistently purchase those authentic K63H mask versions online, Kai?

Just goes to show that observing a seller's feedback alone is insufficient to determine if what you buy is the real deal... When viewing your photos, @Mr. Fahrenheit, what specifically must web observe which proves they are fake? (I ask out of ignorance here... not trying to be...

It probably is the case that the August 1989 revision of the SE which introduced the 1.44MB "SuperDrive" included a mere ROM and SWIM upgrade, not the motherboard upgrade. In other words, I am guessing that the 820-0250-A motherboard came out prior to August '89. That makes sense because the...

Very interesting. You have the newest revision 820-0250-A motherboard with the older ROMs and older IWM chip. Makes me curious what percentage of newer edition "A" boards Apple shipped with the older edition chipset trio. I've also noted that your LO ROM is 344-0041-B, which I guess is older...

While I won't use it in my video, for the sake of reference, I would appreciate seeing a clear photo of what you have. You have me curious! :)

Friends, I wish to thank each of you who kindly contributed photos. I now have what exactly I need... Old SE Board 820-0176-B, with Old ROMs, Old IWM (thanks to @MacMaster for the board photo): (I added color corrections and sharpening only.) New SE Board 820-0250-A, New ROMs, New SWIM...

Now that board and photo are pretty amazing. No RAM makes it easy to see the resistors used to set RAM size. I love the old soldered battery type! A truly well-shot photo without pretty much no distortion! I've color corrected and sharpened it, as well as cut out the background, which you can...

@Branchus Thank you for kindly checking! I certainly appreciate your time. @chrisangellis Although the RAM SIMMs are installed in your old version board, I can see the RAM configuration resistors, so I believe I will be able to use that. Here's how it looks after a few edits... @rikerjoe...

A hi-rez, top-down photo of that older unmodded board would be great, Kai. Thank you. Not sure how @Branchus took his great photo, but in my case, I put my camera on a tripod and faced the lens straight down. I extended my tripod to be fairly tall so I could put distance between the lens and...

Hello, friends. I am in the middle of editing Part I of my @Kai Robinson SE Reloaded video, and I am trying to find high resolution, top-down photos of the SE motherboard and chip sets that are different from mine. Here's a high resolution (20 megapixel) photo of mine, which is revision...

You prepared those faster than I thought. Wow. That basically means overclockers have the 60ns VRAM from Mr. Fahrenheit and now the SMC 60ns VRAM. Now there are fewer excuses to make those old 68040 Macs faster with Spicy O'Clock!

"Great artists steal" — i.e., concoct your own design with inspiration from existing designs. Consider these examples.

I had issues with 7.6.1 and OS 8.1 above about 45MHz, but no issues at 49MHz with System 7.1. 7.1 is faster anyway, so I am happy to stick with that. With the Mr. Farenheit or Drake 4-chip 60ns VRAM, I could overclock to 49.5MHz, but after a while I would get the dust pixels trailing the arrow...

My book has 250-281. The only thing I don't like about the 1st edition is that there isn't much margin around the text. While I can appreciate they wanted to pack as much test as possible onto the page, it just looks odd with pretty much no margin white-space around the text. Does the...

Eric, I didn't notice missing pages in mind. What pages were missing in yours?

Really? You can PM me if you like, but it's probably best that I describe the 1st ed. book I own in a little more detail... It weighs 1.1kg, but with a box and packing added I suspect it would be about 1350kg. Shipping cost from Japan to Europe (Norway) for that weight would be roughly the...

Also be sure to check out Apple's official intro video of the TechStep, which to my surprise still has a shockingly low number of views on it...