Power Mac 9500 Sonnet G3 upgrade 450 mhz
4 gb and 3 gb scsi drives
Apple 1700 Multiple Scan monitor
Radeon 7000 video card
USB Card

I'm running out of ideas. I really need help on this one.
Added ram to PowerMac 9500. To do so I had to remove all pci cards ( radeon 7000 and usb card ) and the Sonnett G3 Crescendo processor card. No big deal, althought it's a bad case design , I've done this before.
After reassembling,the computer refuses to start. Hard drives get power, monitor powers up momentarily and shuts down. NO VIDEO, NO BONG .
Here is what I have tried so far. Some of these solutions are from other Mac Users.
All these things failed to help..........

• Pulled out newly installed ram and tried again
• Reset cuda switch before reinstalling sonnett card
• pulled out processor card pci cards and ram sticks and rubbed contacts with eraser ( a suggestion by a fellow user)
• tried different pram battery ( not new but from a working 7200 )
• tried the original Apple processor card
• pulled mobo out and removed everything including battery and let it sit for 24 hrs. Reinstalled everything but only
put in 1 stick of ram in an attempt to start...No Go........
• Tried video card in 3 different pci slots
• Have thoroughly checked and rechecked all connnections and ensured all cards were properly seated.

I have a B & W G3 Should I pull the video card from it and try it in the 9500 ?

Can anyone offer any suggestions or ideas on this.

Thank you

Colin

I use to get that problem quite often when doing upgrades on my 8500. It always came down to the G3 upgrade card was not quite seated all the way.Hopefully this is your problem, i know my G3 card PowerLogix was quite small as compared to the orginal 604 cards so you really have to make sure it's in their right.

James

You've done all the right things. I will say that I had a 9500 that refused to startup if the Video card wasn't in the bottom slot (or was it the top slot) In any event there was only one that worked. I've had a few 9500s and this was the only one that exhibited this odd bit of nonsense. I think it was a 9500/132. Can you startup from a CD?

Kevan

also try resetting the pram using the old command option p r startup but hold them down for 6 chimes (if you even get a chime) grasping at straws here.

I feel your pain brother!

I've got two of these crapola cased 9500's. What a nightmare just to add some ram, or to replace the friggin pram battery.

I think you've done the logical things already. Try a different video card if you have one. The Radeon 7000 seems to be fussy after a hardware reconfig. Get the system to boot first with another video card before you reinstall the Radeon.

The only other suggestion I can think of is to check all your cables. There are a lot of cables to remove from the motherboard. Make sure all the connectors are seated properly.

I'm surprised it wouldn't boot after reinstalling the original 604e card. That's a little worrisome. James is right though. Those CPU cards have really got to be bottomed out in the slot. Hit the cuda switch both before and after you install the CPU card and every PCI card.
You gotta get the "Bong" at power on.