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According to my experience, screen shots (Cmd-Shift-3) will only capture whatever screens show up on the Monitors control panel. I have however re-checked this particular case, and it captures only the 512x384 image of the 12" RGB I had at the IIsi built-in video port :( regardless of the...

Still quite busy... but here's a bit of news about the subject -- not as good as I'd like, though :( I made a crude, ugly connector for this card, but so far I connected the several SENSE and SYNC lines plus the associated grounds only. No coaxial cables were soldered thus no picture would be...

Shouldn't be a problem: ;)

Some updates on my previous post... Those HP BD07285A25 drives are indeed great -- head seeks are extremely quiet and quick, draw a moderate amount of power (0.8A @ 12V, although a hefty 1.2A @ 5V) and, if properly formatted, they'll work fine even on '030 machines. But I have to correct about...

Actually, the stack pointer is taken from $00000000, and the starting address from $00000004... By the way, the starting address for some (most?) Mac ROMs is of the form $40800000 -- that way is both compatible with 32-bit addressing, as expected upon reset ($40x00000 is the start of the...

Thanks! With the board turned upside-down, after loosing the clips, the heatsink (+Peltier) fell off... several IPA-soaked Q-tips later, both the CPU and Peltier are clean from dry thermal paste. Before: After: The much-better-looking board is now being rinsed 8-) (yes, I'm aware that...

Hi all, I purchased one of these -- with the sole intention of housing my maxed-out 7600 mobo ;) However the original board and PSU work just fine and I could keep them for experiments... but now that I'm used to those beautiful, sparkling boards, this one looks filthy to me :disapprove...

Your issues definitely look like heat-related... even if there's no thermal shutdown device. Just a thought: maybe there's some metallic piece (or solder joint) which dilates on heat and ends up shorting some power lines, forcing shutdown? The problem could reside on the power push-button at...

The schematic of the IIci start-up circuit, from Gamba's site: Unlike the II and IIx, it doesn't seem to have a thermal sensor anywhere, which could cause the symptoms you mention... anyway, it's a pretty simple circuit to troubleshoot. The ICs are SMT, but 14-pin only :b&w: You did...

Back again... Assembler? :lol: So far I've been assembling by hand... Anyway, while I get a reasonable tool somewhere, I experimented with the register at $0802 -- just putting your code inside a loop that will try every single value for that register, stored in otherwise unused D3. For...

Been very busy lately... but now I'm back to the hacking scene! ;) Eventually, I was successful at cutting the female pin header to fit into the Radius Pivot IIsi socket. I soldered it on a small prototyping PCB for ease of build and use, where I'll solder the cables from/to the external...

Wow! I've been very busy at work lately, and thus little time for hacks and/or following this interesting thread... but now I'm back to business! }:) I'm still catching up with the new posts, but let me add something interesting... I'm currently "cleaning" my Q700, getting it ready for...

Busy days at work... but back to the hack scene! ;) I'm aware of Super ResEdit dissasembling capability... but since my intention is to sneak a peek into Macintosh ROMs, I'm not sure about a few things: 1. How will ResEdit (and the resource system, in general) handle upon creating a code...

Got it! After tidying up the ROM contents, things were more or less like before, but now playing at the right speed: ≈11 seconds for 256 kiB ROM, repeating the whole cycle after about one-and-a-half minute -- twice the previous values. Disabling interrupts, changing the sample's length and/or...

I'm afraid you'll have to back up all your data and reformat the whole disk :( Apple utilites won't let you repartition the disk keeping any other partition untouched. As for thrid-party utilities, my only experience is with FormatterOne Pro; I think it can do what you want, but only if the...

Weird, certainly... Yesterday was a hard day at work, and in a few minutes I'll hop into the car and stay out of town all day -- not much time to tinker with the ROM, I'm afraid :'( On the interrupt suspicion, my only evidence so far is that pressing the NMI/programmers button stops whatever...

Some new info: multiplying the (approximately timed) 45 seconds by 22254 samples/sec gives a figure close to a suspiciously round 1 MiB -- add the fact that the second and subsequent times the sample gets played, it's preceeded by a buzzing sound for a moment, not heard just after reset... :-/...

The 8·24 does support resolutions higher than 640x480... up to 1152x870 (8-bit) but not multiscan monitors -- you have to set a fixed resolution on the adapter :( It supports the Portrait Display, too (640x870) Unlike the (otherwise similar) Quadra 700 built-in video, there's no support for...

So far, the contains the following: 1) The Reset Vector: the first four bytes (where the checksum usually goes) are meant to be the initial value for the stack pointer; but since RAM is disabled so far (ROM overlay mode) it would be meaningless anyway. Then goes the code's starting address, I...

Thanks to the amazing efforts of dougg3 and others on this group, I'm on the way of putting a "decent" display during the startup of a SE/30 with alternative ROM... As specified on flickr's caption, that SE/30 has no disk drive at all -- floppy, HD or CD. Only the Jolly Roger ROM SIMM, which...