. . . finally!
I sourced a Radius PrecisionColor 24X to compare with my remaining pair of Apple Macintosh 24ACs! [
] ]'>
The new toy arrived today from a great eBay'r. So I just had to find out what was up with the "extra resolutions" available on the 24X, that are mentioned in the relevant LowEndMac Articles. I think I've got it partway figured out and I'm hoping to do some more experimentation after I get a few other things squared away.
I've got five pairs of screenshots ready to tweak-n-post using several VGA only, Switchable Adapters and a Rotary Switched Liberty Adapter.
All tests were done on my pet IIfx under 7.5.1 with No Drivers installed.
The early results are in though. It looks like the only difference between the Cards is the RAMDAC type and the ROM. The Apple branded 24ACs all had a 1993 v. 1.1 DeclROM on board, while the new Radius PrecisionColor 24X has a 1994 v. 2.0 DeclROM. I had a 24AC with what looks like the same RAMDAC as the one on the 24X in the middle position of the shot below.
RedRadiusRoundup front side:
I'll have to check the full res pics I took, because I sent the wrong card out to IIfx, which may be a boon for him, but might not matter at all. The v. 2.0 ROM from the 24X might very well turn the 24AC with either type of RAMDAC into a much more useful card.
The extra resolutions discovered so far are entirely related to VGA Resolutions that make the 24X a lot more LCD friendly than the 24AC.
In the configuration as defined above:
24AC VGA Output is limited to:
__640 x 480 x 24bit @ 60Hz
24X VGA Outputs are:
__640 x 480 x 24bit @ 60Hz
__800 x 600 x 24bit @ 60Hz
_1024 x 768 x 24bit @ 60Hz
I wonder if . . . NAH! . . . as a Monitor MFR and OEM for Apple, Radius certainly must have seen the writing on the wall before Apple did when it came to LCDs replacing CRTs on the Desktop. I wonder if they'd already begun to get involved with KDS as early as 1994? If nothing else, as a cross platform CRT and Graphics Card Mfr. Radius seems to have piled onto the VGA bandwagon well before Apple did.
For whatever reason, I think I've discovered the problem IIfx has been having with the 24AC I sent him.
I sourced a Radius PrecisionColor 24X to compare with my remaining pair of Apple Macintosh 24ACs! [
] ]'>The new toy arrived today from a great eBay'r. So I just had to find out what was up with the "extra resolutions" available on the 24X, that are mentioned in the relevant LowEndMac Articles. I think I've got it partway figured out and I'm hoping to do some more experimentation after I get a few other things squared away.
I've got five pairs of screenshots ready to tweak-n-post using several VGA only, Switchable Adapters and a Rotary Switched Liberty Adapter.
All tests were done on my pet IIfx under 7.5.1 with No Drivers installed.
The early results are in though. It looks like the only difference between the Cards is the RAMDAC type and the ROM. The Apple branded 24ACs all had a 1993 v. 1.1 DeclROM on board, while the new Radius PrecisionColor 24X has a 1994 v. 2.0 DeclROM. I had a 24AC with what looks like the same RAMDAC as the one on the 24X in the middle position of the shot below.
RedRadiusRoundup front side:
I'll have to check the full res pics I took, because I sent the wrong card out to IIfx, which may be a boon for him, but might not matter at all. The v. 2.0 ROM from the 24X might very well turn the 24AC with either type of RAMDAC into a much more useful card.
The extra resolutions discovered so far are entirely related to VGA Resolutions that make the 24X a lot more LCD friendly than the 24AC.
In the configuration as defined above:
24AC VGA Output is limited to:
__640 x 480 x 24bit @ 60Hz
24X VGA Outputs are:
__640 x 480 x 24bit @ 60Hz
__800 x 600 x 24bit @ 60Hz
_1024 x 768 x 24bit @ 60Hz
I wonder if . . . NAH! . . . as a Monitor MFR and OEM for Apple, Radius certainly must have seen the writing on the wall before Apple did when it came to LCDs replacing CRTs on the Desktop. I wonder if they'd already begun to get involved with KDS as early as 1994? If nothing else, as a cross platform CRT and Graphics Card Mfr. Radius seems to have piled onto the VGA bandwagon well before Apple did.
For whatever reason, I think I've discovered the problem IIfx has been having with the 24AC I sent him.
