Help for Q950

[max66]

My Q950 in trouble [V] , after i have restart the machine ..power-up but dispay

remain blank , the video card is ok have test it on 840av and working fine , what i can check first?

 

[Maconthemove]

First, I would check to see that the video cable is plugged into the video card and not the computer.

 

[max66]

Yes i have check , but i just remember now i have push both the 2 buttons

under the main switch key ..yes i remember now what happened ..after that no more restarted

 

[equill]

Your Quadra may be sulking after having had all of its buttons pressed at once. Reset the MLB by removing mains power (but leaving the mains cable connected to a switched-off power point, and removing the PRAM battery for half-an-hour. Then reassemble the Mac and try it after you have ensured that the PRAM battery is at least 3.3V in circuit. You will lose all of your PRAM settings this way, but you will get the MLB back to square one.

de

 

[Tarmas]

From my experience with a Quadra 950, it's a typical dead PRAM battery syndrome and pushing both the reset and interrupt buttons simultaneously had nothing to do with it. I had to get the timing right between twisting the key from 'on' to 'off' and back to 'on' position to get it to show the video output and start up normally, instead of just switching on the internal fan.

This will take a couple of tries, trust me. And when I say couple, I mean something like 40-50 times. Quadra 950 seems to be real picky about that, unlike other old Macs with dead batteries.

Just make sure you connect your screen to the onboard video first. I don't know if it makes a difference, but it might.

In my case a brand new battery made the problem go away instantly and now it runs happily with 3 SuperMac video cards inside

Good luck with your Quadra. It's probably the coolest Mac made up to date.