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    SiliconExpress IV vs 840av internal SCSI? w/SCSI2SDv6

    SCSI2SDv6 on internal 840av bus (bottom line) vs IBM 17gb 10k SCSI (Hitachi) on SEIV bus (top line) FYI the SCSI2SDv6 is using a slower 6.2.5 firmware, as newer firmware cause corruption on write at the moment (is being fixed)
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    How to open CD drive tray from the OS? 8.1

    Yeah that software seems to be PPC only (I tested it) Thanks for the bezel advice, I will keep my eye out for one. Cheers.
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    How to open CD drive tray from the OS? 8.1

    Hi all, I upgraded the 2x speed caddy drive in my 840av with a Plextor PX-40TSi. Working great with a patched Apple driver (https://www.macintoshrepository.org/23007-apple-cd-rom-software-5-3-2-5-4-2-) But of course, the old drive didn't need to be opened as it was a caddy system. Once I put...
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    SiliconExpress IV vs 840av internal SCSI? w/SCSI2SDv6

    Yeah I did manage to update the card to 2.1rc2. Today I played around with all the different SCSI2SD options and I also tried taking out all the termination resistors to see what would happen. Nothing changed. I've actually emailed ATTO tech support, they might get a laugh out of it, then again...
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    SiliconExpress IV vs 840av internal SCSI? w/SCSI2SDv6

    Have you actually gotten the SEIV to boot from a SCSI2SD? Are there any special settings to be applied on the SCSI2SD? It doesn't seem to do anything. 
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    Recommended system extensions?

    Cheers, I grabbed MacSSH and disabled a bunch of extensions. My NAS connects very easily with the chooser, so seems compatible. But one peculiarity is that when transferring lots of files, larger ones (like games) seem to lock up finder during transfer. I don't know whether this is down to the...
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    Quadra 840av - Value of Crystal Y5

    I had my motherboard out today so I checked for you, this is what is printed on top: SO115 93-44
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    System 8.1 Desktop Pictures not working

    Cheers guys, yeah it was 'too new'. I managed to open the file with GraphicConverter and then save as a Quicktime encoded Jpeg. This worked great. Thanks for the input.
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    System 8.1 Desktop Pictures not working

    Hi guys, I am just wondering what format I can use? I have tried Jpeg at different resolutions but the 'desktop pictures' just says 'this picture cannot be displayed. Are there certain guidelines? Thanks
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    550c power issues

    Yeah you'd want to investigate the battery acid. Check the solder joints under the power connector and just any other general corrosion on the board, look for green pins on ICs etc. Also I don't know if these have a pmram battery, but if they do that is obviously something that can leak.
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    SiliconExpress IV vs 840av internal SCSI? w/SCSI2SDv6

    Edit: I pasted the wrong link earlier https://www.fenestrated.net/mac/random/SiliconExpress/ This is the page with the bootable firmware
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    Recommended system extensions?

    Cheers for all the helpful info! I'm good for ram at 64mb luckily, and yes I have already witnessed the brittleness of this case. Don't worry though, I superglued the bit that broke off (A latch inside the case) I have lovingly cleaned the entire machine inside and out, re-capped it, cleaned the...
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    SiliconExpress IV vs 840av internal SCSI? w/SCSI2SDv6

    According to this page: https://www.emaculation.com/doku.php/downloads There is a firmware that turns it into scsi manager compatible, to allow booting from.  I will attempt to flash this soon as I get a working OS installed.
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    Recommended system extensions?

    Hi all, I'm a complete noob to classic mac and im looking to pimp out my 840av system 8.1 installation. Are there any recommended system extensions? Stuff that adds extra functionality etc. Also wondering for file sharing if there is any NFS or Samba client compatibility available? My NAS...
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    SiliconExpress IV vs 840av internal SCSI? w/SCSI2SDv6

    Cheers thanks for this information. Much appreciated.
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    SiliconExpress IV vs 840av internal SCSI? w/SCSI2SDv6

    Hi guys, When using a SILEXPRESS IV / 840AV SCSI in conjunction with a SCSI2SD v6 (the version that supports async etc) which would be the faster option? Thanks
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    Advice for new 840AV owner

    SUCCESS. Recap all done, board all cleaned. Brand new arctic silver paste on the CPU. Damn that old SCSI is loud! Alrighty, time to play with it :)
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    Advice for new 840AV owner

    Also I saw this comment on another forum about 'shoring up ground' but honestly I can barely understand what he is trying to explain. Could someone here translate for me? lol :) http://macos9lives.com/smforum/index.php?topic=4052.0
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    Advice for new 840AV owner

    Today I removed all the caps & gave the mobo a full scrub down in alcohol and then rinsed in distilled water. Then I put it in the oven on 70-80c for about 30 mins to dry. I've got the new caps on order. By the way - I notice there are two seperate bays for RAM? Is the left hand side for...
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    Advice for new 840AV owner

    Cheers for the info guys. FYI _before_ turning the machine on I dismantled it to check the state of the motherboard. It seems there is quite a bit of green corrosion on the pins of IC's but the PRAM battery hasn't leaked. I am suspecting the caps, so I've ordered a set of new caps and will begin...
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