Performa 200

I have a Mac Performa 200/Classic II which recently started displaying the Quizzical Floppy. I read in a book called Sad Macs, Bombs & Other Disasters and What to do About Them that I need to use SCSIProbe to have the Mac search for my 250 MB SCSI hard drive. I've already tried zapping the PRAM & booting up from a Mac OS 7.6.1 CD-ROM via an external SCSI CD-ROM drive set to SCSI ID 3.
Can I modify a NAD 7.5 floppy to hold SCSIProbe along with HD SC Setup (it already has a hacked HD SC Setup on it)? Or would I be better of modifying a System 7.0.1 boot disk & using that instead?

I figured out what the issue is: it turned out to be a SCSI issue in the end. I previously had attached a external Apple 12X SCSI CD-ROM drive to the Performa 200's SCSI port. I built the external Apple 12X SCSI CD-ROM drive myself too by installing a Apple 12X SCSI CD-ROM drive into a 5.25 external SCSI drive enclosure I bought for this express purpose.
It turned out to be cheaper to build my own external Apple 12X SCSI CD-ROM drive than it would have been to try & win a genuine Apple built external Apple SCSI CD-ROM drive. When I tried a genuine Apple built external SCSI CD-ROM drive the Mac booted off of its internal SCSI hard drive just fine. I found out about the SCSI issues by searching Apple's Knowledge Base & that's how I found the Apple troubleshooting FAQ KB Article.
I was also previously getting a Sad Mac error code of:
0000000F
00000001 which according to the Apple Knowledge Base Article about Sad Macs indicates a Illegal Instruction was occurring. Specifically the exact error code indicated a Bus Error which is supposedly an indication of a random software error occurring. The other Knowledge Base Article I previously mentioned though said it was a SCSI issue rather than a software issue so go figure. In the end I figured out the Performa 200's SCSI controller must be too old to work properly with such a new model of Apple SCSI CD-ROM drive.
The hard drive currently installed in the Performa 200 is also not the factory hard drive. I've upgraded to a Apple Logod 250 MB SCSI hard drive to avoid running out of hard disk space. Thankfully 250 MBs is enough hard drive space for such an ancient B/W Compact Mac.

Similar Messages

Mac Performa 200 OS

Which version of the Mac OS is best for playing old Sierra games on a Mac Performa 200? I was thinking of either using Mac OS 6.0.8L or Mac OS 7.1 or Mac OS 7.5.5. I have 12 MB of RAM (of course only 10 MB are usable).

The 6400s can use FPM or EDO memory, although the 6400/200 that shipped with a BTO Zip drive was supposed to support/take advantage of the faster timing of EDO memory. Although the motherboard is very similar to the 6400, the 6500 had some hardware improvements implemented, and should really use EDO memory, although FPM can be used in them.
As for the memory that you installed, are there 16 chips on each side of the DIMMs? A compatible 64 MB DRAM DIMM has a total of 32 chips on it. Fewer overall chips would indicate the use of higher density chips, which the 6400 can't support. Are you certain that you aren't using parity DRAM, used in PCs? Do you hear the sound of breaking glass at startup? If you have any other 5-volt, DRAM DIMMs (1K or 2K refresh) that you could try, you'd be able to determine if the startup problem is memory-related. The use of a DIMM with a 4K refresh rate causes the memory to be recognized at ½ of its specified density, but the computer should boot with it installed. Some time ago, I remember reading (in the Forums) that some 6400 users bought/installed a pair of 128 MB DIMMs with a 4K refresh rate, because they were less expensive than the 64 MB (2K) DIMMs. Since they were recognized as 64 MB DIMMs, the total installed memory was 128 MBs + the 8 MBs onboard.
Did you search the web (beyond eBay) for the Farallon (Proxim) 10/100 ethernet card?

Performa 200 Booting Problem

My uncle was cleaning out his closet and found a Performa 200 with keyboard, mouse and power cord. I plugged it in and turned it on, but all I hear, I believe, is the hard drive winding up and running. The screen is blank.
When I turn it off, for a brief moment there is a flash of white in the middle third of the screen.
Is there a trick to getting this to boot up after many years in a closet? Do I need to reset something or leave it plugged in for 24 hours?
(BTW, that screen is REALLY small.)
MotionMan

MM,
There is a cheap trick for waking up the monitor on the Quadra line and PPC line in the pizza box form factors. It had to do with the energy save feature. I have never had occation to test it on a Performa 200. It will cost you nothing to try.
On the 6100, the power button would turn on the computer but not the monitor. The monitor was turned on by a relay circuit. The PRAM battery had to be good to wake up the monitor at startup. The cheap fix was to turn the computer on, then turn it off, then turn it back on quickly. The wall power would load the capacitors on the motherboard. Turning the computer off and then on quickly allowed the capacitor power to energize the monitor circuit instead of the PRAM battery. If you wait too long before turning the computer on again, the power stored in the capacitors will discipate and the motherboard acts like it is dead again at start up.
On, pause, then off, then on again quickly will start several models without having to replace dead PRAM batteries. We have a platinum G3 DT that has worked for fourteen years with a dead PRAM battery so it is possible to run computers without replacing the battery. It is annoying to change the date and time control panel but with hundreds of older macs, it makes no sense to replace batteries in all of them.
Ji~m

My Macintosh Classic II Performa 200 has a black screen !!!

my Macintosh Classic II Performa 200 has a black screen, it is making noises when it turns on but exept that it doesnt come on, HELP !!!

Could be a number of reasons for this, such as faulty components (capacitors, semiconductors et cetera).
Some Macintosh computers can even show no-video symptoms if the internal (logic board) battery is weak/bad.
Before you continue, it might be a good idea to test a PRAM reset (link below), and to try starting from a disk tools floppy.
http://support.apple.com/kb/ht1379
Finally, a warning. Please note that opening a compact Mac can be very dangerous because of the high voltages involved, and must only be carried out by someone with the necessary expertise.
Jan

Distributed Cache : Performance issue; takes long to get data

Hi there,
     I have set up a cluster on one a Linux machine with 11 nodes (Min & Max Heap Memory = 1GB). The nodes are connected through a multicast address / port number. I have configured Distributed Cache service running on all the nodes and 2 nodes with ExtendTCPService. I loaded a dataset of size 13 millions into the cache (approximately 5GB), where the key is String and value is Integer.
     I run a java process from another Linux machine on the same network, that makes use of the this cache. The process fetches around 200,000 items from the cache and it takes around 180 seconds ONLY to fetch the data from the cache.
     I had a look at the Performance Tuning > Coherence Network Tuning and checked the Publisher and Receiver Success rate and both were neardly 0.998 on all the nodes.
     It a bit hard to believe that it takes so long. May be I'm missing something. Would appreciate if you could advice me on the same?
     More info :
          a) All nodes are running on Java 5 update 7
          b) The java process is running on JDK1.4 Update 8
          c) -server option is enabled on all the nodes and the java process
          d) I'm using Tangosol Coherence 3.2.2b371
          d) cache-config.xml
                    <?xml version="1.0"?>
                    <!DOCTYPE cache-config SYSTEM "cache-config.dtd">
                    <cache-config>
                    <caching-scheme-mapping>
                    <cache-mapping>
                    <cache-name>dist-*</cache-name>
                    <scheme-name>dist-default</scheme-name>
                    </cache-mapping>
                    </caching-scheme-mapping>
                    <caching-schemes>
                    <distributed-scheme>
                    <scheme-name>dist-default</scheme-name>
                    <backing-map-scheme>
                         <local-scheme/>
                    </backing-map-scheme>
                    <lease-granularity>member</lease-granularity>
                    <autostart>true</autostart>
                    </distributed-scheme>
                    </caching-schemes>
                    </cache-config>
     Thanks,
     Amit Chhajed

Hi Amit,
     Is the java test process single threaded, i.e. you performed 200,000 consecutive cache.get() operations? If so then this would go a long ways towards explaining the results, as most of the time in all processes would be spent waiting on the network, and your results would come out to just over 1ms per operation. Please be sure to run with multiple test threads, and also it would be good to make use of the cache.getAll() call where possible to have a single thread fetching multiple items in parallel.
     Also you may need to do a some tuning on your cache server side. In general I would say that on a 1GB heap you should only utilize roughly 750 MB of that space for cache storage. Taking backups into consideration this means 375MB of data per JVM. So with 11 nodes, this would mean a cache capacity of 4GB. At 5GB of data each cache server will be running quite low on free memory, resulting in frequent GCs which will hurt performance. Based on my calculations you should use 14 cache servers to hold your 5GB of data. Be sure to run with -verbose:gc to monitor your GC activity.
     You must also watch your machine to make sure that your cache servers aren't getting swapped out. This means that your server machine needs to have enough RAM to keep all the cache servers in memory. Using "top" you will see that a 1GB JVM actually takes about 1.2 GB of RAM. Thus for 14 JVMs you would need ~17GB of RAM. Obviously you need to leave some RAM for the OS, and other standard processes as well, so I would say this box would need around 18GB RAM. You can use "top" and "vmstat" to verify that you are not making active use of swap space. Obviously the easiest thing to do if you don't have enough RAM, would be to split your cache servers out onto two machines.
     See http://wiki.tangosol.com/display/COH32UG/Evaluating+Performance+and+Scalability for more information on things to consider when performance testing Coherence.
     thanks,
     Mark

Where to purchase a Performa MB?

I'm looking for a working motherboard for a Performa 200. I haven't seen any on EBAY. Does anyone know of a dealer that may have these? Thanks!
Performa 200 Other OS

Hi Ken,
Before going farther, can you briefly describe the problems you have that have led you to a search for a replacement board? I only ask because, with some Macs, seemingly insurmountable problems can turn out to be small ones when the community here throws their experience at it. Worth a shot.
I can also safely predict that someone will join in with the statement that a working P200 is not resellable for the cost of a replacement logic board. Although that is true, some of us keep old Macs running for the fun and learning experience; price is secondary. My point is, if you are like me and enjoy tinkering, ignore the "it ain't worth it" responses that often show up in threads like this
"Nuff said--on to finding parts!
There are two on-line resellers who always seem to end up with parts for older Macs. Sun Remarketing has a P200 logic board listed for US$50.
Shreve Systems has a lot of parts but I did not see anything on their web site tonight. Might be worth a call or e-mail to check.
FWIW, I've never done business with either firm so cannot vouch for their credibility as venders. Both have been around a long time, so that's a good thing in their favor.
Tip: When web-searching for used/pulled boards, keep in mind that Mac boards are more commonly called "logic boards;" the term "motherboard" is used more for Dark Side machines. Using logic board as the search term should point to more Mac parts.
The best of luck in your search.
Allan

AQ Adapter Not Returning Fault Message even if the Enqueue is disabled

Hi....
i am using Oracle SOA 10.1.3.5 and we are trying to catch the error/fault returned by the AQ Adapter...
to create the scenario i have disabled the Enqueue on the Adapter and put the message...but the we are not receiving the fault message (the control is not going to CatchAll Block defined for the scope...)
the message we are getting is witht eh fault tag and not a exception....
i also tried to add the pick activity after invoke...but can someone provide any link to configure the pick for fault callback...
<fault>
-<exception class="com.collaxa.cube.ws.WebServiceException">
EJB Transaction Error.
EJB exception happened while invoking the partner.
Please verify partner service.
-<stack>
<f>com.collaxa.cube.ws.WSIFInvocationHandler.invoke#647
</f>
<f>com.collaxa.cube.ws.WSInvocationManager.invoke2#538
</f>
<f>com.collaxa.cube.ws.WSInvocationManager.invoke#286
</f>
<f>com.collaxa.cube.engine.ext.wmp.BPELInvokeWMP.__invoke#832
</f>
<f>com.collaxa.cube.engine.ext.wmp.BPELInvokeWMP.__executeStatements#413
</f>
<f>com.collaxa.cube.engine.ext.wmp.BPELActivityWMP.perform#200
</f>
<f>com.collaxa.cube.engine.CubeEngine.performActivity#4330
</f>
<f>com.collaxa.cube.engine.CubeEngine.handleWorkItem#1837
</f>
<f>com.collaxa.cube.engine.dispatch.message.instance.PerformMessageHandler.handleLocal#77
</f>
<f>com.collaxa.cube.engine.dispatch.DispatchHelper.handleLocalMessage#240
</f>
<f>com.collaxa.cube.engine.dispatch.DispatchHelper.sendMemory#345
</f>
<f>com.collaxa.cube.engine.CubeEngine.endRequest#6464
</f>
<f>com.collaxa.cube.engine.CubeEngine.handleWorkItem#1908
</f>
<f>com.collaxa.cube.engine.ejb.impl.CubeEngineBean.handleWorkItem#415
</f>
<f>sun.reflect.NativeMethodAccessorImpl.invoke0
</f>
<f>sun.reflect.NativeMethodAccessorImpl.invoke#39
</f>
<f>...
</f>
</stack>
</exception>
-<root class="org.collaxa.thirdparty.apache.wsif.WSIFException">
file:/u01/oracle/product/10.1.3.1/OracleAS/bpel/domains/default/tmp/.bpel_InterfaceCustomerToBillingEBF_1.0_9da16e94dedd6d829b47b8d4b4a5ab53.tmp/EnqueueCreatePortalAccountMessage.wsdl [ Produce_Message_ptt::Produce_Message(CreateCustomerPartyEBM) ] - WSIF JCA Execute of operation 'Produce_Message' failed due to: ERRJMS_PROVIDER_ERR.
Could not produce message due to JMS provider error.
; nested exception is:
ORABPEL-12165
ERRJMS_PROVIDER_ERR.
Could not produce message due to JMS provider error.
Please examine the log file to determine the problem.
-<stack>
<f>oracle.tip.adapter.fw.wsif.jca.WSIFOperation_JCA.executeRequestResponseOperation#644
</f>
<f>oracle.tip.adapter.fw.wsif.jca.WSIFOperation_JCA.executeInputOnlyOperation#739
</f>
<f>com.collaxa.cube.ws.WSIFInvocationHandler.invoke#474
</f>
<f>com.collaxa.cube.ws.WSInvocationManager.invoke2#538
</f>
<f>com.collaxa.cube.ws.WSInvocationManager.invoke#286
</f>
<f>com.collaxa.cube.engine.ext.wmp.BPELInvokeWMP.__invoke#832
</f>
<f>com.collaxa.cube.engine.ext.wmp.BPELInvokeWMP.__executeStatements#413
</f>
<f>com.collaxa.cube.engine.ext.wmp.BPELActivityWMP.perform#200
</f>
<f>com.collaxa.cube.engine.CubeEngine.performActivity#4330
</f>
<f>com.collaxa.cube.engine.CubeEngine.handleWorkItem#1837
</f>
<f>com.collaxa.cube.engine.dispatch.message.instance.PerformMessageHandler.handleLocal#77
</f>
<f>com.collaxa.cube.engine.dispatch.DispatchHelper.handleLocalMessage#240
</f>
<f>com.collaxa.cube.engine.dispatch.DispatchHelper.sendMemory#345
</f>
<f>com.collaxa.cube.engine.CubeEngine.endRequest#6464
</f>
<f>com.collaxa.cube.engine.CubeEngine.handleWorkItem#1908
</f>
<f>com.collaxa.cube.engine.ejb.impl.CubeEngineBean.handleWorkItem#415
</f>
<f>...
</f>
</stack>
</root>
</fault
regards
\Sanju03

I have found problem. My application name in iStudio was different from adapter. Once they are same it is ok
Regards Robert

Personal LaserWriter NTR

I was just recently given an old Apple Personal LaserWriter NTR. I tried connecting it to my Performa 200 running Mac OS 7.5.5 with 10 MB of RAM. Out of the ten times I tried once I got a message stating "scanner motor malfunction." It never printed once while connected to that Mac. I then hooked it up to my Power Mac 5260/100 running Mac OS 8.6 which was able to print to it. When I attempted to enable download unlimited fonts I again got a error message regarding the scanner motor. I then ordered a kit from fixyourownprinter.com to replace the scanner motor. I then attempted to power the printer on & it turned on but all of the lights were off. According to the manual I got with it this indicates that the control board/density controller board isn't getting power. I have tried both fixyourownprinter.com & eBay. Neither have the replacement part I need. I would buy a Personal LaserWriter NT density control board but then I won't have a parallel port connector (I have PCs too). What else should I try to attempt to fix this printer?

Thurletta,
I appreciate the note of confidence. Two years ago
it was Henry that answered all the hard questions for
me.
My Laserwriter Select 360 has been a great machine
but toner cartidges for it now cost more than buying
a LW 16/600 ethernet capable printer AND toner
cartridge combined.
Find inexpensive parts to swap out you will over
spend on your NTR. That was our first laser printer
and I have 5 parts machines but I find it hard to
take the time to tinker with them when newer printers
are so cheap. My hat is off to you for getting as
far as you have. Dismantling a parts machine will be
your best education.
Jim
As for AppleTalk issues, Grant's comment about
disconnecting and restarting is the best guarantee of
renewed cooperation. I always turn off laser
printers when not in use because too long of a delay
between use will allow older versions of AppleTalk to
lose track of the device and then a reboot is
required.
I, too, always turn off everything after once having a lightning hit zap an LCII and modem through the phone cord.
Also, a belated acknowledgement and "thank you" to Henry.
My NTR is still going strong after "playing dead" a few months ago, and there is an old NT in the closet awaiting harvesting for parts should surgery become necessary. (Fortunately, it revived itself before I had to start taking the NT apart.)
The person who gave me the 360 also gave me eight cartridges so I'm good to go for a while on that. Both the NTR and 360 are so far working with the AsanteTalk bridge.
Thanks again for your help...I just hope we can somehow help the other fella who is still trying to get his NTR to work properly. My only suggestion for him is to contact olde-mac-milt on eBay who specializes in parts for old Macs to see if he has any ideas for getting his NTR to work with the 520.
Dual-boot G4 Mac OS X (10.3.9) PB 1400, PM 7600, PLW NTR, LW 360

Batteries for Power Mac G3 Beige Minitower

Where can I get batteries for Power Mac G3 Beige Minitower? I think they're Lithium batteries 3.6V 200W 922-4542.

m i g,
Here is a source for $4.99:
http://eshop.macsales.com/item/Newer%20Technology/BAA36VPRAM/
Jim
Note to others: (direct quote from above link)
This battery is an exact replacement for the below listed models.
Macintosh II series computers
Macintosh SE FDHD
Macintosh Classic (4-chip and 2-chip)
Macintosh SE/30, IIx, IIcx, IIci, IIfx, IIsi series computers
Macintosh IIvi, IIvx, Performa 600 series computers
Macintosh LC, LC II, LC III, Performa 400 series computers
Macintosh Quadra 605, LC 475, Performa 475, 477 series computers
Macintosh LC 520, LC 550, Performa 550 series computers
Macintosh Classic II, Color Classic, Performa 200 series computers
Macintosh Centris 610, 650, 660AV series computers
Macintosh Quadra 610, 660AV, 650, 700, 800, 840AV, 900, 950 series computers
Power Macintosh 6100, 7100, 8100 series computers, and Performa 6100 series computers
Power Macintosh 7200, 7300, 7500, 7600, 8500, 8600, 9500, and 9600 series computers.
Power Macintosh G3 - all models, entire series
iMac - all models, entire series
Power Mac G4 - all models, entire series
Power Mac G5 - all models, entire series

Looking for Sytem 6.x

I recently was given a Mac SE by a friend who said I could have it if I got it working. I tried booting up and discovered that the system software on the HDD is either gone or corrupted -- I need a boot disc of the 800k variety, but I have no way of creating one. I would like to start with something around 6.0.8 since I don't know the exact specs of the machine.
If anyone out there can help me with this, I would gladly pay shipping and possibly compensate you for your time (I'm a poor college student so I'm on a shoestring budget). I live in Arkansas. I also have a box of the old 800k discs that I could send if you can make a copy of the System software.
If you can help, please reply here or preferably to [email protected] Thanks!

I'd be happy to help except that one of the disks involved in making a System 7.1 set is double density. The only possible workaround I've found is too manually upgrade your Mac SE to a Mac SE FDHD. I found a vendor of old Mac parts that may be able to help with obtaining the necessary Super Drive, Mac SE FDHD logic board, and 4 MB of RAM required to run Mac OS 7.1. I can only hope I didn't buy his last Mac SE FDHD logic board. I have also heard of people buying a SuperDrive & obtaining a Mac SE FDHD logic board at their local junk yard (if you're lucky you may find several intact old Macs too). Admittedly this isn't the most sanitary way to get the parts but sometimes used older Macs do get thrown away by ungrateful owners. Early Macs that are black & white compact Macs usually are the first to go when they start to clean out their closets and/or attics. I actually received a free Performa 405/LC II, Performa 200/Classic II, & a LC 580 by asking around (not much on its own but a great low cost alternative to buying more expensive 68040 based Macs)locally. My only disk that's double-sided is a extremely rare copy of MS Flight Simulator 3.0 for MS-DOS. We originally bought it for the family's Tandy 1000 & surprisingly it still works. Somehow being double-sided tricks the Tandy into thinking the disk is a 720k disk (some sort of complex PC 720k floppy disk drive read/write head specific code which has never been attempted on a Mac). It's actually a 1.2 MB disk when formatted oddly enough. To this day it's the only disk like it I've ever seen. If you can't find or afford a newer Mac but can afford to upgrade to a Mac SE FDHD I could make a 1.44 MB version of the doublesided floppy on my Mac LC 580 (I used the convert command of Disk Copy 6.3.3 to convert from double-sided to the more common 1.44 MB density floppy).

LC 475 won' boot after 13 years of good service

Hi. My LC475 was running 7.5.3, I kept it going because it ran a very good scanner. All Iget when Iturn it on is the happy Macintosh logo and then the logo that indicates that it cannot find the system software. Any ideas?

The Classic II/Performa 200 does have a battery too. It's a 3.6 volt 1/2 AA battery. If the computer has been around for three to five years or more it's probably time to replace the battery. I should know since I recently had to replace my Performa 200's battery (same Mac as far as specs go but by a different name). If you have a multimeter or know someone who does you can use it to check the battery. Anything below 3.1 Volts indicates it's time to replace it. You should be able to find it at Batteries Plus (& at a reasonable price too). Radio Shack may also have it but even if they do I'm guessing they'll probably have worse pricing too (even if they do they may not know it's used in older Macs too; they're quite clueless when it comes to Macs in general; they don't even sell Macs).

Creating floppies and understanding errors

I recently sold my Macintosh Performa 200 (functioning and booting) on eBay. I would like to wipe the drive and reinstall System 7.5.3. I have a System 7.5.3 CD. However, Disk Utility seems to be having some problems with the images from my System 7.5.3 CD.
I have a USB floppy drive. DU will open the images. However it croaks at some point during the transfer of the image to the floppy.
Specifically, here are errors from my logs.
The Disk Utility Log reports:
Starting Restore…
Preparing source…
Copying…
An error (1) occurred while copying. (Operation not permitted)
The console.log details this a bit more, though provides no immediate answers:
Starting Restore…
Jan 25 19:04:46 mars authexec: executing /usr/sbin/asr
Preparing source…
Copying…
newfs_hfs: write (sector 2048, 1048576 bytes): No such file or directory
/sbin/newfs_hfs failed with error 256
/Volumes/Untitled
asr: The restore failed
An error (1) occurred while copying. (Operation not permitted)
Exactly what operation is not being permitted? Also, to add to the questions, if I format the disk initially as MS-DOS (FAT12), I can actually get the image to transfer, but the operation does not reformat the floppy! I end up with the files from the image on a MS-DOS formatted disk! That dog won't hunt.
Any tips on solving this problem?
PowerBook G4 Mac OS X (10.4.8)

Here's what I know now... Tiger's Disk Utility *****. There is clearly a retiring of all things System 7.5.x, read legacy is just not on the minds of Apple engineers, or it's not well documented.
That said, here's what I got to work:
First I use /sbin/newfs_hfs to build the floppy filesystem:
% /sbin/newfs_hfs -h -b 512 /dev/disk2
Then, using dd ("disk-to-disk") on the command line, with the System 7.5.3 image mounted, I do a character device copy to get the image to the floppy. This indeed worked and booted my Macintosh Performa 200 to the installer.
mercury:~ root# dd if=/dev/rdisk1 of=/dev/rdisk2 bs=512
2880+0 records in
2880+0 records out
1474560 bytes transferred in 608.056694 secs (2425 bytes/sec)
Downside... took over 600 seconds. Yeah, ten minutes! Going to try a couple of tweaks to my "one-liner" to jam that down, possibly use a larger bs (blocksize in the transfer). But this could be a limitation of the character special device v. the block special device (always reporting Resource busy). I'm a hack, not an engineer.
Regards, hope this helps someone.
Tim

Creating pools and such during install

I'm building an InstallAnywhere installation for our product and would like
to create connection pools, data sources and tx data sources during the
installation. What would be the best way to do this?
Ted

Here's what I know now... Tiger's Disk Utility *****. There is clearly a retiring of all things System 7.5.x, read legacy is just not on the minds of Apple engineers, or it's not well documented.
That said, here's what I got to work:
First I use /sbin/newfs_hfs to build the floppy filesystem:
% /sbin/newfs_hfs -h -b 512 /dev/disk2
Then, using dd ("disk-to-disk") on the command line, with the System 7.5.3 image mounted, I do a character device copy to get the image to the floppy. This indeed worked and booted my Macintosh Performa 200 to the installer.
mercury:~ root# dd if=/dev/rdisk1 of=/dev/rdisk2 bs=512
2880+0 records in
2880+0 records out
1474560 bytes transferred in 608.056694 secs (2425 bytes/sec)
Downside... took over 600 seconds. Yeah, ten minutes! Going to try a couple of tweaks to my "one-liner" to jam that down, possibly use a larger bs (blocksize in the transfer). But this could be a limitation of the character special device v. the block special device (always reporting Resource busy). I'm a hack, not an engineer.
Regards, hope this helps someone.
Tim

Startup Disk Control Panel

I'm curious. Out of all the parts of Mac OS 8 or Mac OS 9 I thought the Startup Disk control panel might be 68k running in 68k emulation on PowerPC Macs. Is this true? If so where can I find an updated Startup Disk control panel? The one included with Mac OS 7.5.5 is too buggy. I haven't tried the one included with Mac OS 7.6.1 but I'm guessing the bug is probably still present. I'm asking because I tried installing Mac OS 7.5.5 & System 6.0.8L on my Performa 405 before the LC II Revision B logic board died due to corrosion. If possible I would like to make my Performa 200 dual boot with both OSes so I can run black & white apps like adventure games which are incompatible with Mac OS 7.5.5 & later versions of the Mac OS.

Download the Mac OS 8.1 updater, and use TomeViewer to extract the control panel. The version of the control panel included with Mac OS 9.1 or later is PowerPC.
(23885)

Performa 6400/200

I have a Performa 6400/200 running Mac OS 9.1. I have installed two 64 MB 2k refresh rate RAM modules. The Mac now refuses to boot with them installed. I have already replaced the PRAM battery & pressed the CUDA reset button on the logic board. The Mac still refuses to boot. It only gets as far as the Happy Mac icon & then freezes. It didn't come with a network card either. Where can I get a Farallon 10/100 comm slot II ethernet card? I have already tried eBay with no luck in finding one too. Should I assume that the RAM is Fast Page Mode & thus incompatible with this Mac? I also have a spare logic board of the exact same model I can test with too to eliminate the possibility of a bad logic board. I have already tried zapping the PRAM too & it has no effect on the Mac. It still refuses to boot. What should my first troubleshooting step be?

The 6400s can use FPM or EDO memory, although the 6400/200 that shipped with a BTO Zip drive was supposed to support/take advantage of the faster timing of EDO memory. Although the motherboard is very similar to the 6400, the 6500 had some hardware improvements implemented, and should really use EDO memory, although FPM can be used in them.
As for the memory that you installed, are there 16 chips on each side of the DIMMs? A compatible 64 MB DRAM DIMM has a total of 32 chips on it. Fewer overall chips would indicate the use of higher density chips, which the 6400 can't support. Are you certain that you aren't using parity DRAM, used in PCs? Do you hear the sound of breaking glass at startup? If you have any other 5-volt, DRAM DIMMs (1K or 2K refresh) that you could try, you'd be able to determine if the startup problem is memory-related. The use of a DIMM with a 4K refresh rate causes the memory to be recognized at ½ of its specified density, but the computer should boot with it installed. Some time ago, I remember reading (in the Forums) that some 6400 users bought/installed a pair of 128 MB DIMMs with a 4K refresh rate, because they were less expensive than the 64 MB (2K) DIMMs. Since they were recognized as 64 MB DIMMs, the total installed memory was 128 MBs + the 8 MBs onboard.
Did you search the web (beyond eBay) for the Farallon (Proxim) 10/100 ethernet card?

Performa 200

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