Macintosh Quadra 840AV, problem with startup

Hey all,
I got a brand new (old) Macintosh Quadra 840AV computer from my friend. I acquired it with powermac 8100 mainboard on deck, and then it started good, I had a signal on monitor and system started up. When I put an original 840AV mainboard it doesn't start. Why? I equipped 840AV mainboard with a new 3,6V battery. Maybe a problem with a RAM?

Solved. I put a video RAM instead of standard RAM. :>

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    Luis,
    Welcome to Apple Discussions.
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  • Having problems with Startup Disk Installing Panther

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  • Problems with startup and logging in

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  • Anyone having problems with startup manager?

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      VRAM (Total):
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      Revision ID:
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  • Problems with Startup, Please help.

    This weekend, I came across some issues w/ my computer. I've searched numerous forums, and have visited the support forums on here as well with no luck. I hope someone might have a solution for me on here. I think this is a startup/os X issue...
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    Well, I tried both method's...dr. smoke, your method confused me in respect to one thing...the second step after running the disk utility to repair the disk...which was loging into your user account to then repair permissions...how can i do this step if i can't get into my startup disc and into my account? So I logged into my OTHER account on my second HD and ran permissions and followed the rest of your manual exactly...w/ no luck...
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  • Problems with Startup Manager

    I started having frequent crashes on my Powerbook G4 running OS 10.3.9. I wanted to verify the hard disk, so I booted off of the only installation CD I could find (an old 10.1 CD). Booting off this disk worked initially and I launched Disk Utility. For some reason, however, the 'repair' and 'verify' buttons were grayed out when I selected my laptop's hard disk.
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    Confirmed this problem is related to the nvidia graphics card.  Startup manger worked normally with the orginal Radeon card installed.  Given that there are options for booting into Bootcamp, I've reinstalled the GTX 680 and will continue to use it.  Hopefully there will be a fix for this at some point in the future.
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    System info:
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      Bus:
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      PCIe Lane Width:
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      VRAM (Total):
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      Vendor:
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      Revision ID:
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      ROM Revision:
    preset 1.0.0
      Displays:
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    LCD
      Resolution:
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      Pixel Depth:
    32-Bit Color (ARGB8888)
      Display Serial Number:
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      Main Display:
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      Mirror:
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      Online:
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      Rotation:
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      Pixel Depth:
    32-Bit Color (ARGB8888)
      Mirror:
    Off
      Online:
    Yes
      Rotation:
    Supported
      Television:
    Yes

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