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Hi, I'm trying to debug the Orange Micro OrangePCi application to try and figure out why it will successfully launch the card with a K6-III socketed in it, but it refuses to boot with a K6-III+ in it. It's been a looooooong time since I did any classic Mac development, and even then it was...

Has anyone tried replacing the CPU in the OrangePC PCfx! card? I'm trying to determine if the OrangePCi application has some step that checks a whitelist of CPUID values when initializing the card. Orange Micro explicitly states that the CPU in the PCfx! card isn't user upgradable. However, it...

Nevermind. I discovered that TattleTech identifies all the DIMMs and whether or not they're considered interleaved. In my case they are, and it's just Gauge Pro which doesn't show great info.

I'm trying to figure out how to detect whether or not my PowerTower Pro is actually enabling interleaving for pseudo-128-bit memory access. No matter what I do NewerTech's Gauge Pro just shows that memory is being accessed at 64-bits despite every DIMM in the machine having a matching buddy in...

I use FileBuddy for all things of this nature. It was a staple utility back in the old days and it's just as glorious today. :-)

Do you have the above benchmarks, but only for CPU/FPU instead of the aggregate system benchmark? I ask because I'm actually curious how the various systems in that list compare to each other in terms of performance without disk cache and/or SCSISD shaped performance benefits distorting the...

Really? Thanks for the explanation. That makes the references in the datasheet about not using 2Q_X for the 68040 make even less sense to me. So, I've always thought the "66 Mhz" and "80 Mhz" marketing claims on some 68040-based products to be complete bunk. Are the internals of the 040...

I don't understand why the -55 part would be considered a problem? That rating is the max in-spec speed rating of the 2Q_X clock line out of the chip, and I don't think that is the clock that's driving the CPU is it? I thought I saw in the datasheet that the 2Q_X clock is specifically not...

Here's the diagram from the datasheet that helped me make sense out of what's going on with the MC88916DW:

From what I can tell from my researching the chip (used on my Interware Booster30-33Fv2, though mine is a 70) is that it offers several output clock signals based on the input SYNC signal. Most of the output lines are clock doubled, but there's one "2Q_X" that is clock quadrupled from the input...

I'm actually really surprised it gets so hot for not being an XC.

What is the actual CPU being used? An XC or MC prefix? What speed rating?

I've been wanting MacClips for my 650, 7100, and 8100 (I also want to OC my 650 to 40+ Mhz). So, if you happen to have extras you're willing to sell, I'm happy to buy them. That said I don't want to impede the exploration/experimentation happening here.

@jeremywork Can you get a more detailed picture of your OPC 340? I'm curious about some of the chips on it. I can't tell if it still has ISA-based video, or if it's been upgrade to a VLB chipset.

Yes, typically. I've replaced the FDD drives in some of my machines with small-format MO drives. It's been a great way to move files around between machines with varying capacities for connectivity to each other for one reason or another. Older style FDD slots that lack the detent in the middle...

I tried to buy that same lot :-)

It's an OrangePC 200-series card. Something a bit lower-end in the range (210? 220?) given the lack of PCMCIA slot/controller and seemingly a lack of L2 cache chips. One thing I'd REALLY love to be able to do is map out the pin mappings on that little breakout ribbon cable. I suspect @jeremywork...

When used as a "Macintosh interface" card does it offer any useful features? Like QuickDraw acceleration? Does anybody know what, if any, other Radius graphics solution that section of the VideoVision is derived from?

I kind of assume the same thing about board design, and figure that at a minimum trying to go from 25 to 33 could be an interesting experiment.

Has anybody considered or attempted to overclock a Rocket Booster? I have a 25Mhz Rocket Booster here and both 33Mhz and 40Mhz 68040 processors in my possession, and there's a nice big clock crystal can sitting right there on the card that looks ripe for swapping out with a socket or variable...