waashk/20ng huggingface dataset:
tzs@stein2.u.washington.edu (Tim Smith) writes:  >> ATTENTION: Mac Quadra owners: Many storage industry experts have >> concluded that Mac Quadras suffer from timing irregularities deviating >> from the standard SCSI specification. This results in silent corruption >> of data when used with some devices, including ultra-modern devices. >> Although I will not name the devices, since it is not their fault, an >> example would be a Sony 3.5 inch MO, without the special "Mac-compatible" >> firmware installed. One solution, sometimes, is to disable "blind writes"  >This doesn't sound right to me.  Don't Quadras use the 53C96?  If so, the >Mac has nothing to do with the SCSI timing.  That's all handled by the >chip.  About the only the timing could be wrong is if Apple programs the >clock registers wrong on the 96.  That, however, should only really hurt >synchronous transfer, which is not used by the Mac SCSI Manager.  >Furthermore, disabling blind writes should be meaningless on a Quadra. >On Macs that used the 5380, which is a much lower level SCSI chip, the >Mac was responsible for the handshake of each byte transferred.  Blind >mode affected how the Mac handled that handshake.  On the 5396, the >handshake is entirely handled by the chip.  The docs say that it's a SCSI Manager bug, if this changes things at all...
Finally got my computer fixed and I'd like to sum up.  About hard drive companies: the original 160 meg drive that was bad (bad sector or something) was an IBM.  The new one is a Quantum.  Is the LCIII supposed to be shipped with IBMs?  Is there a quality difference?  Apparently! :)  Second, about hard drive position.  I've put the LCIII on its side and the new 160 HD has had no problems at all.  I've even switched back and forth between horizontal and vertical and there are no problems.  As far as I'm concerned I don't believe HD position is important for drives up to 160 meg, in any computer.  Don't know about CD-ROM, though.   	"Just like everything else in life, the right lane ends in half a mile."
Log onto SuperMac's BBS (408) 773-4500 and download the Drive 7 Manager software you will find there. If you can't or don't want to call their BBS, call their Tech Support number, (408) 245-0646.  Lynn
The PowerBook 170 4/40 with Fax/Data modem is available thru CitiBank's CitiDollars catalog for $1995.00 + $19.95 S/H (+ 500 CitiDollars).  The modem is 2400 bps data, 9600 bps fax (send only).
I have an old Mac Plus. A couple of years ago I bought a shiney new lc. It came with apple's new keyboard (with abd ports). i replaced it with a mac-pro-plus extended keyboard (which i thoroughly enjoy, thank you very much).   well, i have this extra keyboard which i would like to use on the plus but there's a little problem. the plus uses an rj-11 jack for keyboard input and the new keyboards don't. i got an extra adb cable from my local apple dealer (they're such nice people), but they couldn't tell me the order of the wires.   there are four wires in the adb cables: black, white, red, tan. I know one's a ground, one gets the serial signal, one supplies 5 volts, and i forgot what the fourth one does. anyway, if you hook them up wrong you'll fry a board and i <really> don't want to do <that>.   if any brave souls out there have done this before, please e-mail your experience directly to me. i would greatly appreciate it especially since apple's original keyboard is not . . . ergonomically correct.   btw, i did take apart my new keyboard to see if i could find the correlation between the wires for the rj-11 jack and the adb since it has both, but no such luck (the connections are soldered inside of little boxes). Oh, well . . .
We are having problems with a bunch of SE/30's in one of our Labs. The fault is that the machines either bomb or freeze when attempting to write to their internal floppies. The internal floppies have been tested on their own and are fine, which means that it is a main board fault. The machines all come from the same batch.          The date code on the back of the machines is December 1990.          1. Do you own a machine from this batch.  	2. Has any user had experience with this fault.          3. Was it a warranty repair.   Any feedback would be appreciated and I will post the results to the net.                          Bill
I have an opportunity to buy a Radius VideoVision board for about 1/3 of normal street price, which I believe is due to a change in the board architecture.  I VAGUELY, MAYBE remember that there was some kind of serious problem with this board, which does Composite, PAL, SECAM to S video, Composite, etc coversions. Plus also generating quicktime movies,  etc. MacWeek was generally complimentary about it in the April 12th issue.  Does anyone have any information on this board, such as is it the  one which has been superceeded, what about an  upgrade if so, etc. I'd be very curious to hear from you.  THANKS!  --B.W.
I don't know about the specific problem mentioned in your message, but I definitely had SCSI problems between my Q700 and my venerable Jasmine Megadrive 10 cartridge drives.  My solution was to get Silverlining.  None of the loops that involved blind writes worked to the drives; in fact the only loop that worked was the "Macintosh Software" loop (whatever that means).
Has anyone use Snooper or MacEKG or any other similar diagnostic  software.Any comparisons/reviews on these products would be very much  appreciated.  Thanks in advance for your help  Cheers --
In light of the 100 letter over "What was the LISA" I thought I'd start a new one.  What was the IIvx?  I hear it was some machine that predated the main 040 line by about 6 mos, but used obsolete tech.  Rumor has it that several were sold....
I have a few questions that I would like answers to  (or opinions on) since I'm thinking about buying a LC-III:  Q1) When the PowerPC-based Macs are announced, what will happen to the 680X0-based Macs?    Q2) Is System 7 the 'last word' for 680X0-based Macs?  Will we ever get REAL multi-tasking for the Mac?  Q3) Will there be a way for NuBUS/PDS-equipped Macs to add  a PowerPC-on-a-board to their systems?  I'd hate to think that I'm going to put my $$ down on a machine that in 6 months is now part of a dead-end product line!  Thanks in advance,
PKR@SLACVM.SLAC.STANFORD.EDU (Patrick Krejcik) writes:  >I saw once an article about a new line of Macs configured to	 >work more optimally as file servers. 	 >Anyone know any more details?      Check out the May issue of MacWorld; the new servers are on the cover. Should be at your favorite newstand.
I know that Jet Inc makes refills for the Stylewriter and Deskwriter ink jet cartridges in several colors....but are pre-filled cartridges in color available from anyone (or do I have to use-up one cartridge  before I have a chance to print in color?)  Also, are inks in process colors (cyan, magenta, yellow) available to refill cartridges?
I  have one of the original Powerbook 170's (with 4Mb of Ram) and find that 4Mb is a drag when trying to do my work.  So, what is the best way to get the maximum RAM for this unit, and what's it going to cost me? I'm hoping I can get the latest and best info from real users by posting  to this group.
A friend of mine recently acquired an 8!24 GC card for his IIsi and was wondering why it always starts up in black and white. I know there have been numerous reports about the worth of the GC, but I was wondering if anyone could elaborate a little more on the subject.  Any replies encouraged.  Thanks in ad- vance.
Steve Bollinger <buzz@apple.com> writes:   >Enter game developers. The sound driver and current sound manager are >inconveniently lame for making games.  The Sound Driver is pretty ok, since it's fast. Sound Manager used by the book is *useless*. Disposing of sound channels as soon as sound has completed is out of the question for games with smooth animation. (It's too slow.)  The Sound Driver is so much snappier than Sound Manager. Unfortunately, System 7 supports it poorly, making programs crash occasionally.  >The more of the story is to developers: DON'T CHEAT! >Really, I am absolutely, positively not allowed to do what I am about to >do, >but I'm going say it anyway. >Stop cheating on sound! >Really soon, you will be sorry, as even those without external speakers >will be disappointed with your sound on future hardware. The grace period >is about to end. >The Sound Manager is understandable now, and works pretty well and will >work >even better soon, so use it.  Well, I want my code to work on old systems too. I don't know about sys 7.1, but at least on 6.0.7, there are bugs in the Sound Manager that causes channels to hang (with no error message). This happends when I keep a channel open for long periods - necessary for performance - and play many sounds, stopping sounds halfway. Callbacks seems not to be reliable. Then only way I can safely tell if a sound has stopped playing is to inspect private variables in the channel (QHead, I think it was), and the only way I have found to tell if a channel is hung is to inspect an *undocumented* flag and modify it.  Am I happy with this? Nope. I consider writing to SoundBase simply to get rid of the bugs.  Any better suggestions? (Silent games is not among the acceptab|e solutions.)
In article <1993Apr5.203903.12192@midway.uchicago.edu> JohnC, jcav@ellis.uchicago.edu writes: >We're all set to buy one of these for the office, to use for scanning in >color photographs and for optical character recognition.  We've played with >the original grayscale OneScanner and were very pleased.  Is the color model >comparable in quality? > >Also, what brand of OCR software would you recommend?  We're leaning toward >Caere OmniPage.  Any better ideas?  Thanks.
Nathaniel Sammons writes:  >I am going to be getting a C650 soon, but I don;t want Apple >to come out with the Cyclones and the Tempest in a month >and have the price drop on the system I want.  I have negotiated a >good deal with a supplier for a C650 8/80 and I would like to jump on it, >but, again, I don't want the price drop to smuther me.  BTW, the deal >I have is a C650 8/80 with mouse for $2295... does anyone know of a better >deal?  I don't know how to say it best but you are gaurenteed that the price of the C650 is going to drop this year.  This week's MacWeek reports that Apple is probably planning a drop in August.  My guess is that it may come sooner if Apple decides to  change the price structure upon release of the multimedia units this summer.  Your price looks pretty good at about $50 more then I payed for mine last month.  I would have rather waited for one of the new machines this sommer (like the Cyclone) but the resale value of my IIci would have not been squat by then.  Thus, financing forced me to purchase now.  I'm happy with the machine and won't feel betrayed at all when Apple cuts the price to less then $1000 next week (heh).  Bottome line:  If the C650 does what you want, buy it.  If you wait until the Cylcones come out for a price break then you might as well wait for the PowerPCs to come out for another price break and then the units which follow them.  You may save some money but you've lost a lot of time when you could have been using the computer.  Face it, Apple's prices are going to be in a continuous state of flux.  At least they aren't going to try raising them again (grin).
In <5APR199312491648@utkvx.utk.edu> nwcs@utkvx.utk.edu (Schizophrenia means never being alone) writes:  >Does anyone know how to open up the Apple Ergo-Mouse (ADB Mouse II)?  Mine >lives near a cat (true, really...) and picks up her fur.  From what I can tell, >it looks like Apple welded it shut.     By rotating the plate around the mouse ball counter-clockwise you can open the mouse and clean it. It isn't as obvious as the Desktop Bus Mouse I but it opens quite easily once you see what has to be done.  -Geoff -- geoffb@Dartmouth.EDU - Computing Support Consultant, Tuck School of Business
I had asked everyone about problems installing a 4 meg simm and an 8 meg simm in my Centris 610, but the folks at the local Apple store called the folks in Cupertino and found that you can't have simms of different speeds in one machine, even if they are both fast enough - ie - My 80 ns 8 meg and 60ns 4 meg simms were incompatibable...  Just thought people might want to know..... 					Jason.
> >  > > Doesn't a 1 MB SIMM have about 1024 * 1024 * 8 moving flip-flops? >  > They don't move, to anybody much bigger than an electron :-)  And they're more like 1024x1024x8 charging & discharging capacitors in a DRAM SIMM =-)
In <1r7t6fINNq4c@senator-bedfellow.MIT.EDU> thewho@athena.mit.edu (Derek A Fong) writes:  >Is there an extension cord type cable I can buy which allows me to plug >my existing power cord into and then plug this "extension cable" into my >Quadra?   There are two approaches:  1. If your power cord is the kind that detaches from the back of the monitor (most common) you can get a *replacement* power cord that will go from the monitor to the back of the computer.  2. You can get an adpater that connects to the plug end of the existing power cord and provides the proper end that plugs into the back of the computer.
sakelley@jeeves.ucsd.edu (Scott Kelley) writes:  >Does anybody know where I could find a driver for a Future Echo >Infomasster [sic] CDE 600 CD-ROM drive? A friend is running this drive >off of a PC and would like to use it on the mac.  Here are some contacts for generic CD-ROM drivers: 	Optical Access International 		800 West Cummings Park, Suite 2050 		Woburn MA 01801 		(617) 937-3910 		(617) 937-3950 fax 		AppleLink: OAI 	FWB, Inc. 		2040 Polk Street, Suite 215 		San Francisco, CA 94109 		(415) 474-8055 		(415) 775-2125 fax 		AppleLink: FWB 	Optical Media International 		180 Knowles Drive 		Los Gatos, CA 95030 		(408) 376-3511 		(408) 376-3519 fax 		AppleLink: OMI 	Trantor Systems (for Intel architecture machines) 		5415 Randall Place 		Fremont, CA  94538 		(415) 770-1400 		AppleLink: TRANTOR 	Software Architects (not verified) 		11812 North Creek Parkway N. 		Suite 202 		Bothell, WA  98011 		AppleLink: SOFTARCH.DEV >	Casa Blanca Works(not verified) >   415-461-2227 >   Applelink: CBWorks  To send a message to someone on AppleLink, use the form   address@applelink.apple.com where "address" is replaced by the appropriate applelink address.
Readers,  I own a Mac IIsi and am considering upgrades (cards, hard drive, etc). Can you tell me what the power limitations are for 1) the PDS slot and 2) the hard drive power feed. Secondly, Can you tell me if there is a separate limit for each, or if instead, there is a single limit for both combined?  Please drop me a line if you know the answers to these questions. Thanks,
In <1993Apr20.085651.1@mrl.dsto.gov.au> ryanph@mrl.dsto.gov.au writes:  >There is no reason that Apple couldn't release software patches for older >computers (there are lots of Mac Pluses, Classics and SEs that have been >upgraded to 68020 and 68030 processors which should be perfectly able to deal >with Color Quickdraw) - but they wont, and 3rd parties are having a difficult   There is one reason: market size.  The market size for color quickdraw for accellerated plusses and SEs (which don't go beyond 4 MB anyway) is just too small; the extra cost would belike $1,000 and with that money, you can buy a color classic instead.  Cheers,  					/ h+ --   -- Jon W{tte, h+@nada.kth.se, Mac Hacker Deluxe --
I've recently ordered a Centris 650 and need to decide on which modem to buy.  I'm pretty sure I want to get a fax/data modem that can run at 14.4k, but is it worth it?  I'll primarily only be 'conversing' over CompuServe or some other link to the Internet, but I'm not sure if those systems can supply ME with data at 14.4k.  Another question I have is in some of the modem lingo out there.  I understand baud rates, but what does V3.4 and V3.4bis mean?  I could really use some suggestions as to what a good modem for around $300 would be, and why it would be a good choice.  Thanks for your time.  Dave Bell dbell@coral.bucknell.edu
I also suffer from these video "artefacts". My configuration is a Centris 610, 4/160, 1MB VRAM with a NEC 4FG. It only happens at 832x624, in 8bit colour with virtual memory off during scrolling. This occurs when the VRAM SIMMS are installed as well as removed. It seems that the 610 does not like 832x624.  Does anyone *not* have these problems in the above mentioned conditions?  -Gersham Meharg SFU Canada.
Sorry if this is a FAQ.  I don't normally read comp.sys.mac.hardware. I am purchasing a couple of Centris 650's.  I configured the systems as follows:  	Eight (8) Mb RAM 	Ethernet 	1 Mb VRAM 	Math CoProcessor option  My purchasing agent told me about the math coprocessor option and sent me the Apple summary documentation to prove it.  I ordered the coprocessor option, but I'm really not sure that we needed it.  I thought the '040 chip had a math coprocessor built into it.  Has Apple had a math coprocessor chip architectured to keep up with the speed of the '040 chip in the Centris 650? I am concerned that I may have set up a hardware bottleneck.  Please send your responses to:  David_Anthony_Guevara@cup.portal.com.  I will summarize if there is enough interest.  Thanks!
I would like to know the regular/international phone number of a computer supplier called "Computer Component Source". Their free phone number is 1-800-356-1227. This number is no use to customers outside the US. I wish to upgrade the power supply on a couple of Mac Plus computers and would like to make contact with "Computer Component Source".
I hear that the Performa 450 is really an LCIII with an internal modem.  Can the modem part be obtained and installed in an LCIII?  It would be nice if it were actually a powerbook internal modem, but that might be too much to hope for.
I am planning on buying a modem and related software. What are some good  products out there that won't cost me a lot of money but will still do  the job?   Any help will be appreciated.  I am looking for something in the 2400 baud  area.   Kenneth                    --
Is it possible to rip an external SyQuest removable drive out of its external casing and install it into the 5 1/4" empty bay slot on a Centris 650? I know a special bracket would need to be purchased, but is there any power hookup/SCSI constraints that would prevent it? If anyone has done it, could they mail me some instructions. It doesn't seem to be that overwhelming an undertaking.   ------------------------------------------------------------------------------- |   nicholas lamendola                |  "...he who controls the fork,        | |                                     |   controls the meal of his choice..." | |   npl@lingo.psych.rochester.edu     |                                       | |   npl@merlin.cvs.rochester.edu      |          -- LARD (1991) --            |
In article <wstuartj.735273842@lucky.ecn.purdue.edu>  wstuartj@lucky.ecn.purdue.edu (W Stuart Jones) writes: > I want to go from 512K to 1M VRAM on my Quadra 800.  How many 512K SIMMS  > do I > need to buy?  Is the current 512K soldered on the board or do I need to take > out the current VRAM before I add more?  You need to add two 256K VRAM SIMMs;  512K VRAM SIMMs will not work in any  of the Quadra or Centris machines.  There is already 512K of VRAM soldered  to the logic board.  You add the two 256K SIMMs to this to give you a  total of 1 MB.
In article <186177@pyramid.pyramid.com>, andrem@pyrtech.mis.pyramid.com (Andre Molyneux) writes: > In article <1qksuq$1tt8@hal.gnu.ai.mit.edu>, mirsky@hal.gnu.ai.mit.edu > (David Joshua Mirsky) writes: > |> Hi. I own an LCIII and I recently heard an interesting rumor. > |> I heard that the LCIII has a built in slot for a PowerPC chip. > |> Is this true? I heard that the slot is not the same as the PDS > |> slot.  Is that true? > |>  > |> Thanks > |> David Mirsky > |> mirsky@gnu.ai.mit.edu >  > Well, I also have an LC III.  Popping the top revealed: >  > 	One "socket" for an additional VRAM SIMM >  > 	One "socket" for a 72-pin RAM SIMM >  > 	One socket for a flat-pack FPU >  > 	A processor-direct slot (PDS) identical to the LC/LC II, but with > 	an additional set of connetions to one side (for the full 32-bit > 	data path that the LC/LC II lacked >  > That's it.  I guess a board with a PowerPC chip could be made that would fit > in the PDS, but that's the only place. >  So, will it be possible to have a NuBus or PDS PowerPC upgrade, or will it  require a logic board swap? It would be interesting for Apple to come out with a NuBus PowerPC that allowed use of the CPU's 680x0, like RocketShare. But I  guess that's getting a bit fantastic!  I was wondering, since MacWeek reported that developers were 'seeded' with PowerPCs on a NuBus card.  Also, any word on machine arrivals or estimated speed? Last I heard, the  estimates were around 3-4 times the speed of a Quadra in native RISC mode. I heard an Apple employee mumble something about the arrival of PowerPC machines at a much earlier date that Q1 94, but I doubt it's true.  Finally, is the PowerPC developer's CD 'mini-course' available? I saw it  advertised in the developer's university calendar, and I'd like to know if it's at all *interesting*.  Sean
In article <1993Apr16.144750.1568@mintaka.lcs.mit.edu> nodine@lcs.mit.edu (Mark H. Nodine) writes: >I don't know about the specific problem mentioned in your >message, but I definitely had SCSI problems between my >Q700 and my venerable Jasmine Megadrive 10 cartridge >drives.  My solution was to get Silverlining.  None of >the loops that involved blind writes worked to the drives; >in fact the only loop that worked was the "Macintosh >Software" loop (whatever that means).  I doubt this is a Quadra-specific problem.  I had to get rid of my "venerable" Bernoulli 20 last year (with enough  cartridges purchased at ~$90 each to make the whole thing  worth more than my whole computer ;).  The tech support guys at Ocean Microsystems suggested that some third-party drivers  might fix the problem - in my case the cartridges wouldn't  format/mount/partition for A/UX.
In <1993Apr19.143939.28983@Informatik.TU-Muenchen.DE> probulf@Informatik.TU-Muenchen.DE (Frank Probul) writes:  >|> However, when I learned typing in school some years ago, I was taught >|> to write 'b' with my right hand. Is this a difference between Danish >|> and American typing, or what???  >In germany you usually use the left hand for the 'b'  Same in Sweden (the ergonomic keyboard is great, BUT! the palm rests do NOT fix to the keyboard; they just sort of rests against the table. Too bad when you have the keyboard in your knee...  Cheers,  					/ h+
I saw once an article about a new line of Macs configured to	 work more optimally as file servers. 	 Anyone know any more details?
We were told that the resolution on the 5FGe could only go to 1024x768.  And that the 5 FG could go to 1152x870.  Has anybody tried running these higher resolutions??  Somewhere I thought I read that the 1152x870 on a 17" monitor may make the type too small to read.  Any help would be appreciated. Steve