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Macbuk

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  1. Macbuk

    Mac IIfx outputs green video

    Have you ever tried vga/svga modes?Moreover i suggest 1467,14678,14679, 146789 combinations. Macintosh High resolution video card 640*480*67 was recognized by "all" my LCD monitors!
  2. Macbuk

    My quest to see video output

    This is the dip setting i succesfully used with my 19 inch Philips LCD and IIci internal video. Its worth a try .
  3. Yesterday i was playing with some non functional boards i put in a box over a decade ago. Of them, the one i recapped in 2008 has been suffering from erratical no video/no nubus syndrome. The reflowing of colder joints and the recostruction of one lifted pad restored the board to a functional state. Strangely i have found an irregular corroded or scratched trace starting from memory slot. It was corroded exactly above the "C7" capacitor writing. I've've found very similar pattern in a second, not yet restored, board and even in a IIx (!!!) Why only one and why the same ? Any insight? Could be because of Apple intervention during test phase or in the support timeframe? Or are them simply badly corroded traces because of C7/battery acid leak?
  4. I'm Sorry. Picasaweb had a shutdown. I'm still on restauration of my old computers, waiting to retrobrite them. My collection count on a fully functional 1987 Macintosh II (tantalum board), two IIci (both 040 accelerated), a IIfx, an SE30 with Rasterops 24 bit board, an LC475 and 3 Apple IIgs (1 rom 03). I ve also a lot of boards to test and troubleshoot. Cory5412 you were right. The external cache card has a relevant impact on the Cinepack frame rate, video synchro to audio and also an impact on JPEG redrawing. I've been testing my Macintosh IIFX (stock 40 MHz, 24 M ram) using same hard drive and the some files of the video i posted: the Macintosh IIci with cache card seems to be better performing despite Speedometer 4.0 overall rating being higher for the IIfx. (0.71 vs 0.47 CPU). I guess the 32 k cache card adds something that the benchmark is not able to meter.
  5. The 1984 Macintosh introduction sample (24 FPS) is coming from this link. Some other samples (29.9 FPS) were coming from my personal holidays. I used Mpegstreamclip app on windows to reconvert them from h264 to apple cinepak using:. .mov, 320x240@29.9, quality 100, audio mono, 8 bit, 15 khz I made several samples the best of which were the one with variable bitrate (well playable in 68040). The samples whose costant bitrate was lower than 2000 played well in 68030 with some acceptable performance loss (rougher dithering). Higher bitrates were often loosing video to audio synchronicity. I made some 480*360@29.9 fps small samples that played amazingly well in one accelerated IIci but not in the other one (this requiring severals HD calls). I'm trying to catch, time allowing, the reason (less ram, slower HD, slower accelerator, different videocard?). In this Link some retrocolleagues speculate how to produce extremely low bitrate samples (ffmpeg) also for the original Motorola 68000 in amiga.
  6. In a 68030 enviroment i would prefer System 7.1. It's lighter/snappier. With QuickTime 2.5 installer integrations (Qt 2.5, sound manager , musical instrument) System 7.1 sports the best multimedia performance in playing movie samples when compared to 7.0.1 and 7.5. I use to integrate Apple menu and extension manager. Incidentally i discovered my Daystar Turbo 040 dislikes newer CD-Rom SCSI extensions. However I'vee no experience in networking so i do not know if 7.5 or 7.6 provides a difference . In a 68040 native enviroment probably does not matter.
  7. Thanks for your answer. I was surprised cause i've always considered only the Motorola 68040 capable to play 320*200/30 FPS movie samples. No add in SCSI compartment: just internal drive. I tried various Prodrive units (700, 500, 250 and Apple branded 80) with similar results. All i get is 0.8 - 1.3 score (HD) in Speedometer 4.0. Quite ordinary and modest drives if you consider that LEM reports internal SCSI controller capable of 2.1 Mps. The test i shared on YouTube was made using apple unaccelerated 8.24 nubus card. The internal videocard does not make any perciavable difference beside the fact i'm strictly confined in 640*480-8 bit. I will try if the cache card does anything relevant in the overall results. The LC475 Is an overall nice performer: It reads flawlessy all 240p30 movie samples (even the third sample with 3mps bitrate) with desktop set up to 800*600. Strangely It slows down all samples when desktop is set to 1024 x768 (Unlike the unaccelerated IIci that works like a tank even at 1151*870). In the JPEG tests, the LC475 clearly sports a lot faster opening time when compared to the unaccelerated IIci. The 33MHz 68040 accelerated IIci is even faster when opening and redrawing. One more thing i noticed Is that the LC475 has a peculiar "discrete bands" JPEG redrawing pattern (when resizing or moving the pictures) i guess FPU-lacking related. Incidentally, i tried also Apple video and MJPEG formats but i got only few frame per second at 320*240. Cinepak appears to be the only way in 68k, its playback is a lot faster. Mpegstreamclip today does an amazing job in converting to, whatever is your file source. I still have to test samples bigger than 50 mega and also test movie samples encoded at 480*360/30. I suspect that if you are high in memory and you find the correct balance between HD speed and bitrate even 360p30 is viable in a 33 mhz 040 or faster. I'm very very curious to know if pb 180 Is also capable of video playback. I would suggest QuickTime 2.5 plugin and simpleplayer 1.0 (find It inside Qt 1.0 beta). I noticed that QT movieplayer 2.5.1 and 2.5 are somewhat less capable than simpleplayer (despite being able to resize to full screen).
  8. Macbuk

    Advice on repairing Mac IIx

    I do not know if it Is what what apple meant in the original project of the the Macintosh II family but It seems fairly normal. All my - fully functioning - Macintosh IIci, IIfx and my II (all "47 mfd only" recapped) have 16 ohm between +5 and ground. Curiously my LC475 has 160 ohm and my SE30 nearly 170. Do not know why.
  9. Some days ago i was amazed by video play performance and JPEG conversion/play capabiities in a stock (unaccelerated) macintosh IIci. While i was encoding samples with various (cinepak) size & data bitrates to reach the limit of both my micromac and daystar 68040 pds accelerators, the "respectable" performance of the stock 68030/25 has not come unnoticed. In this YouTube video some test with IIci 24/540, 32k PDS cache card, apple 8.24 videocard, system 7.1, QT 2.5, Simpleplayer 1.0, Movieplayer 2.5.1, PICTcompressor. Cinepak encoded samples (320x240 @29.97 up to 2 Mps costant bitrate, 8 bit mono) seems very well playable even in a stock machine. Only occasional hiccups (only when playing bigger files) because of the harddrive. The samples appear well playable either with internal, either with 8.24 video card, even at 1152*870! Just for example, my stock LC475 (512 vram) - unexpectedly - slows down a lot when playing the same video samples with desktop resolution higher than 800x600. I do not know why. PiCTcompressor has been also a nice find. Coupled with QT2.5 extension does an amazing job in JPEG conversion and play. It appears to be faster than the Photoshop 2.5 integrated converter and does a better dithering job when you are in 8 bit mode or low in ram (conversion to 16 bit). In your experience are there better/faster JPEG player ? I ve a curiosity: what were JPEG accelerators made for? Did they help the conversion between formats? Did they speedup the loading or the 2D redrawing? Were they meant to speed up photoshop filters only? Were they useful even in the quadra 68040 nubus enviroment?
  10. Macbuk

    Macintosh IICX No Video After Recap

    Reseat memories and rom chips if socketed. Check fuses on the motherboard (labeled "F") Check caps polarity and overall resistance between +5 and ground. Sometimes you can find shorted (or low resistance) aluminum caps (even new) because of unefficient quality control.
  11. Macbuk

    Advice on repairing Mac IIx

    C6 - R3 to R19 continuity has been reported "critical" in IIx startup (R18 in the original II). If no chime i would also try to reseat chips, memories and rom. I would also measure resistance between +5 and ground.
  12. Thanks for the link you provided. I Guess you're right when you say that FS/3 relies entirely on CPU power. According to my experience even Pathways into darkness has demonstrated similar behaviuor. Its frame rate seems totally unresponsive to the choice of internal (score 1.19) vs external (score 0.68) video card. Neither the LC475/quadra 605 (i restored) provides amy better frame rate. I Will do more test when i get Marathon (i hope asap) that should be quickdraw-accelerated and better optimized. I guess the general performance in marathon should not differ between a 040 accelerated IIci and a real quadra 605/630/650. Thanks, you have highlighted some interesting aspects. I'm sorry. Here some screenshots of 8.24 card with stock IIci w PDS cache card. the use of the 8.24 nubus card (instead of IIci internal) frees up some CPU processing power (0.438 vs 0.40) but the graphic performance score demonstrates a slight decrease. I do not know if the 0.395 to 0.695 gap (8.24) and the 0.468 to 1.145 gap (internal video) induced by Daystar Turbo 040 reflect the overall data limit of nubus slot or simply reflects the 10 MHz cycling limit of nubus slot vs 25 mhz bus in the IIci Unfortunately I do not have any accelerated nubus card/s (8.24 gc or third part cards) to see if the Daystar 040 - 33 MHz would push them beyond the 0.695 score. Perhaps i still do not understand what this speedometer 4 "graphics parameter" does really measure (2d? 3d?). Sincerely i'm not able to percieve any difference either on games , either on Cinepak videoplay between nubus video vs internal video (on 68040 enviroment). I tested a lot of 320*240 and 480*360 cinepak samples encoded with various - fixed and variabile - bitrates to reach the 68040 processing power limit. For example, 480*360 samples over 2000 kbit/s (smaller than 30 mbyte) stress the CPU but not the hard drive. These video samples often generate refresh artifacts: the switch to the internal video card does not help at all. The videoplay on LC475 demonstrates identical behaviour. I would be very surprised if the internal video of the 68040 boosted IIci or if the internal video of the quadra 605 (despite the 25 MHz non fpu processor) impacts in a relevant way the frame per second performance of marathon when compared to the 8.24 non accelerated nubus video card in 040 enviroment. I'll do a report.
  13. Hey mates, I've been benchmarking the PDS Daystar 040 - 33 Mhz. Speedometer 4.0: Some screen. Stock IIci, cache card, 20 -500 IIci, 8.24 card in 1152*870 Daystar Turbo 040 (No quad control no powermath on ) IIci, internal video 640*480 Daystar Turbo 040 - 33 (no quad control/Powermath) Huge score improvement on graphics! Quadra 630/650 alike scores. Finally... IIci, high resolution card - 8 bit Daystar 040-33 (Quad control, Powermath option on). Quad control improves CPU and Math scores only. No impact on graphics. I get very poor hard drive scores , whatever drive i use on both my Macintosh IIci(s).
  14. Thanks Trash80toHP, i tried: No luck. I've been doing some comparison during these days. As you suggested I've found a "still starting" 605 deeply covered of dust. Up today i've had no interest on pizza box models. Now i have 3 "68030" and 3 "68040" in four machines only, to do some tests As far i can say i noticed the lc475/605 (stock 25 MHz 68lc040) is by no mean better performing than accelerated IIci (33 MHz) in both "Pathways into darkness" and "Flight simulator 3" enviroments. I'll do some tests with speedometer 4.0 to see if 475 internal video does better than 040 accelerated IIci internal video. Incidentally I got unexpected (at least for me) results with cvid video playback. I used Mpegstreamclip to achieve some Cinepak encoded 320x240@30 and 480x360@25 samples. I tried to download marathon.sit from Macintosh repository. However Stuffit 4.02 and 3.07 failed to expand the file. Which version do i Need? Can you provide a "more friendly" file?
  15. Thanks. This should save me from spending money and time.
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