Search results

I picked up @nickpunt's monitor today and confirmed the same results as he saw. Connected it to an 8*24 card which is known to support the portrait display and still I'm unable to get proper sync. A standard cable for the portrait display doesn't require an adapter. But the fact that this...

When I get some time, I will.

I did finally get my hands on a Radius PrecisionColor Pro 24 XK. It came with ROM version 2.0. Took me a while to get a driver that worked. RadiusWare 2.2.1, 2.2.2, 2.3.2 all didn't recognize the card. Finally got something that worked by downloading RadiusWare 3.4.1 from Macintosh Garden...

Finished the Quadra 950 ATX converted power supply. As I mentioned before, it's using a Corsair HX1200 which is a PSU from 2016-2020 that is no longer sold but you can find them used and in good condition. It has independent regulation of the voltage rails, and provides 30A on 5V. It's an...

Thanks!

Same as usual. Rustoleum Satin Stone Gray. It's a little dark and a little cool in tone compared to the original platinum, but that usually shows mostly when it's dark. In daylight, it looks close.

That Corsair HX1200 PSU is working well. Strong solid 5V/12V/-12V at the logic board. Power on circuit is working and the relay to the passthrough power connector also is working great. Q950 boots, chimes, sound works, all looks well. Only issue however is that on a cold boot, before the chime...

Sharing some pictures of the plastic repairs on my Quadra 840AV. Used plastic weld to fill in the broken areas, then cut away the excess, sanded it down, and then painted.

👍

Yes, I think you guys are right. I must have thought the slider was representative of the amount of memory detected but it wasn’t. But I got the same cpu errors and never got it to work.

I was thinking there could be some additional code paths for different hardware but I didn't notice any while debugging - although I was heavily focused on the particular one that performed the NVRAM writes that @joevt found so I could have missed it. But if you're saying that toggling the...

That’s what I resigned myself to when I had a TW1340 and I saw the same Apple Fritter post. But mine did show the 16MB to compact virtual, it just wouldn’t let me use it and allocate it as a RAM disk. It complained about the lack of a 68030 even though it was accelerating so in my case a full...

Cool, thanks!

@joevt mentioned it would not work on the 6100,7100,8100 due to their HW configuration. @killvore do you know if your machine supports Apples hidden option in OS 8.6?

Not sure what's up with these PowerBook internal Zip drives, but this is the second one I have had (and I've only had two) that has exhibited issues when used. This one's in my 3400c and the last one was in my 5300c. Both cause random lock ups when inserted, with/without the driver installed...

FWIW, this extension seems to work on my PowerBook 3400c. It passes the test of bit 6 of $2400, sees bit 4 of $2401 is high and then zeros out the NVRAM $1043. Subsequent cold boot has no memory test.

Does Apple's hidden option in Mac OS 8.6 work on your 7100? If it does, there could be another code path.

The code seems to do the "run startup ram test" byte write as long as CHRPNess (bit 6 of $2400) is set AND one of the other three (HeathrowExists, OHareExists, GrandCentralAddr) is set. I have done the same tests/checks in the No Ram Test system extension so I think any model that Apple...

Cooked up a system extension for System 7.6.1 that mimics Apple's hidden option in MacOS 8.6 to disable the startup ram test on Power Macintoshes. I have only tried it on my Power Macintosh 8500 on System 7.6.1. Thread on the analysis with @joevt here...

Ok, cooked up a system extension that will register a shutdown proc and overwrite that 0x09 with a 0x00 which then skips the ram test on the next cold boot. All it does is register a shutdown procedure which executes before power off and essentially mimics what Apple does (even in System 7.6.1)...