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kreats

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Everything posted by kreats

  1. kreats

    SE/30 CPU Socket Daystar Adapter Project

    How about using the processor direct slot & building a (cheaper) card ala artmix's? Doesn't the PDS essentially break out the CPU pins anyway? EDIT: some of those right angle eurodin connectors could be good on their own actually
  2. kreats

    Nice CC Mod

    As a contrast - hereis when a mod goes badly.
  3. kreats

    Nice CC Mod

    I can appreciate the craftsmanship that went into doing this, but it's a lot of work to be ruined by such an awful paintjob - osx looks unusable on that thing too.
  4. JRL: um.. read what was actually said before you jump the gun. If you've ever turned on a IIGS you'll know it makes a sound, and boob or booob or even beep are pretty good approximations of the noise it makes.
  5. kreats

    Two SE/30s with identical no-startup problems.

    no - I didn't mean that. You could take that page and create a new one with the updated information, using it as a template. Or instead, create an entirely new one if you'd rather replicate the info - I just personally think the layout of that FAQ is nice. Then host it somewhere. Basically, instead of getting frustrated every time someone doesn't trawl through this forum to get all the (genuinely good) infos you've posted (and I suspect a sticky wouldn't be enough - as the investigations span several threads of conflicting info, with many pages to each), you could instead simply make a more current SE/30 repair FAQ.
  6. kreats

    Two SE/30s with identical no-startup problems.

    Instead of stickyfied various multipage forum threads, perhaps an updated version of this page would be better? http://www.biwa.ne.jp/~shamada/fullmac/repairEng.html
  7. kreats

    Three Apple //GS systems for sale

    or if you want to be nice - to sell on these forums for a fair markup I've been after a transwarp/zip gsx for some time!
  8. where did you get the quaddoublers from? If it's designed to double a 33MHz (I assume to 50MHz - not 66MHz), why not just use it in a Q950? If you're talking the newer tech. ones, they are probably system specific - each has it's own model number at least (I think the q900 and q700 have the same model number tho). btw gotta watch out for the centris versions of these as the c650 was only 25mhz. Don't suppose you could do some pics anyway? EDIT: actually I don't think there was ever a 33MHz version of the quaddoubler, so I'm pretty sure you're talking about the newer quadra overdrive ones.
  9. kreats

    "ultimate" 68k machine

    AFAIK these work by doubling the onboard oscillator. So assuming the 840av runs at 40mhz bus speed, you'll get 80mhz - which will be too hot. If you want to mod the oscillator you might have luck - but that might bugger up other things in the 840av. The 800 it would prob. work in however.
  10. kreats

    My Apple IIgs

    Well not sure about the $80 for a 4mb memory card (new reproduction 4mb ones were $40 a while back) - but who knows with ebay. ok will look forward to the post
  11. kreats

    My Apple IIgs

    oh come on.. "I have no idea". I highly doubt this... The zipgsx is prob worth at least $100 USD at the other place. EDIT: just saw the pics. Well - I'll offer $100 USD for both. Could you please keep all bidding in the thread?
  12. this was a relist which failed to sell for $50 before. You only hear about these when the price is high.
  13. kreats

    "ultimate" 68k machine

    The adaptec powerdomain PCMCIA SCSI card (mac variant of slimscsi) is probably what you want here.
  14. kreats

    My Apple IIgs

    depending on what exactly the memory, accelerator & scsi card are they could go from reasonably expensive to megabucks. interested in the accelerator & mem card (if equal to or larger than 4MB)
  15. kreats

    SCSI-IDE adapters

    I've tried both the acard 7220U and a yamaha one and they both fit. Tight squeeze though yeah.
  16. kreats

    The Q650 is on the net

    macbench too. Why the double posts btw?
  17. kreats

    The Q650 is on the net

    maybe run some benchmarks to show how fast? if it's that image 040 one, try some photoshopping too?
  18. kreats

    "ultimate" 68k machine

    which makes me wonder how far does it scale? Say a q950 plus a thunder IV and 4 photoengines? You'd hope your gaussian blur would be plenty fast by then!
  19. kreats

    "ultimate" 68k machine

    that's only three cards there - the scsi array and wacom tablet are not nubus cards. If you were running out of slots, you could get an external nubus enclosure, but I'm not sure how well this is supported (Only avid setups?). btw - the photoengine works cooperatively with the thunder IV?
  20. kreats

    IBM Stuff

    http://en.wikipedia.org/wiki/IBM_Personal_System/2 More like only the model 25 and 30 used an AT style bus. The rest (the majority) used MCA. The main feature is that it's probably the best performance you are going to get (expansion wise) with a 286 based machine. Also, most software will have no problems running on it as IBM was the standard (good choice for an OS/2 box). The main negatives? * All the sound cards for MCA were crap * You have to source a driver for every little bit of hardware and install it to your option disk (would have been hell in the pre-telecommunications era). You need to run the config program EVERY time you change your hardware configuration. * You need special PS/2 RAM for some models * No IDE on some of the earlier models & no easy way to mount drives internally
  21. kreats

    "ultimate" 68k machine

    Well the point is that the q840av notes say it is doing something faster wrt nubus speeds through the cpu. I assume they are comparing it to existing quadra models (such as the q950). Assuming Apple isn't flat out lying, what is responsible for this increase in speed and did anything take advantage of it?
  22. kreats

    "ultimate" 68k machine

    trag: Yes, but: "Supports the full range of NuBus master/slave transactions with single or block moves, including dumps and runs in which the main processor is master and the NuBus is slave , supports faster data transfer rates to and from the CPU bus, and supports NuBus 90 data transfers between cards at a clock rate of 20 MHz." http://docs.info.apple.com/article.html?artnum=12738&coll=ap
  23. kreats

    "ultimate" 68k machine

    From the Q840av notes RE improved nubus: "Improved NuBus interface. Both models use the Macintosh Universal NuBus Interface (MUNI) for accessory cards. This interface supports block transfers and data bursts to and from the main processor bus. MUNI capability is optional in the Macintosh AV Centris 660." "The Macintosh Universal NuBus Interface (MUNI) is a CMOS chip in a 208-pin package." "The MUNI version of NuBus supports the full range of NuBus master/slave transactions with single or block moves, including dumps and runs in which the main processor is master and NuBus is slave supports faster data transfer rates to and from the CPU bus supports NuBus90 data transfers between cards at a clock rate of 20 MHz provides First-in, First-out (FIFO) buffering of data between the CPU bus and accessory cards AV , the MUNI is mounted on the main circuit board; in the In the Macintosh Quadra 840 AV Macintosh Centris 660 , it is on an optional NuBus adapter card. Details of the MUNI operation are given in NuBus Interface, later in this chapter." "MUNI provides separate FIFO buffers for data on the CPU bus and on NuBus. These buffers can operate concurrently" "All data transfers on NuBus are synchronized by a 10 MHz clock. An additional 20 MHz clock supports burst transfers in cards that conform to the NuBus90 specification. This permits faster data transfers than are possible with earlier NuBus designs." Dunno if that helps.. there's a little bit more in the appendix about needing to alter the ROM of cards which support this improved nubus. Apparently nubus features (specifically block transfers) are laid out a bit clearer in the designing nubus cards book/document.
  24. kreats

    "ultimate" 68k machine

    Some links: "Macintosh: SCSI Data Transfer Rates" http://docs.info.apple.com/article.html?artnum=12315 "Developer Notes: All Hardware Products" http://developer.apple.com/documentation/Hardware/hardware2.html Apparently the 840av has a tweaked nubus design - it'd be interesting to see if this made a difference with any nubus performance. AFAIK cards have to be specifically designed to support nubus90 to realise any benefit.
  25. kreats

    "ultimate" 68k machine

    Well it's like getting a motherboard with everything integrated. Chances are you wouldn't have chosen the parts that are built in and you don't even have the option of removing them - nothing inbuilt in the 840av is best in its class once upgrade cards are regarded. IMO a Q840av can't compete with an avid or videovision setup regardless of what it is, and today a thunder IV just isn't expensive. Mostly, cost isn't an issue today. Powerpro cards are reasonably common - more common than any upgrade you'd ever find for an 840av. You'd probably have to pay a few hundred bucks for any such upgrade - and btw no need to be rude. I know it isn't what you want to hear, but (emotional attachment aside) an upgraded 800/650 is probably the best "ultimate" all rounder of the last generation macs. Personally, I'd rather the 2 extra slots and comprehensive compatibility of the 950/900.
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