No video signal after crash

recently my dual 1.8 G5 power mac froze and the fans went full blast like a jet engine. i had to hold the power button in to force it to shut down, when i restarted it, it powers up like usual but i no longer have any signal to my monitor. i've pulled out and re-inserted the video card, reset the smu button, replaced the video card and still have no signal. i know the computer still works cause i can connect to it on my network and transfer files to and from it, i just can't figure out why i'm no longer getting a video signal from it. can anyone please help?

misterfumanchu wrote:
thanks for the response. it had the nvidia geforce fx5200 originally, so i bought the same card to replace it, but it didn't make any difference when i put in the replacement, still no signal. if i tried to boot up into open firmware, i wouldn't know if i got the terminal or not since i probably won't see anything. i was also wondering if it could be just the dvi cable going bad? is that even possible for the cable to go bad cause the computer froze?
The cable wouldn't be likely to go bad because the computer froze, but the a computer freeze because of a cable failure could be very believable.
Booting into open firmware would be telling in one respect: if you get the screen to come up, then it isn't the video card; it's something more fundamental but probably fixable. Try the following booting into open firmware, even if you don't get any video action:
Type in the following two commands, probably a minute after you get the initial boot tone:
*reset-nvram <cr>*
*reset-all <cr>*
You should get a reboot after entering the second command. This is kind of like an instrument landing in pea soup fog, but it might help. Even if you get the screen to come up, go ahead and enter the commands.
At least the good thing about the 5200 is it is such a minimal card that replacements are very cheap in the wild.

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Last edited by foobar42 (2014-10-21 12:36:52)

Quote from: Bas on 29-March-08, 19:15:31
Put the old card back in, does it work again?
Anyway, put the old card back in first, see if everything still functions.
Quote from: Fredrik Åsenius on 29-March-08, 22:21:29
Yes, and I was also thinking about the two tuner cards. Do what Bas says first, and only then without them and their drivers.
Correction, three cards!
The mobo setup on the cardboard was with NO PCI slots: just the video card. Thanks for the tips.
Quote
If you, test with a PSU that cann do like 30A @ 12V single line, see what it does.
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The monitor was tested on another computer and it works well. I bought a graphics card but no difference. I even tried my HDTV plasma (which became an option because of the new graphics card) but that does the same thing.
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This question was solved.
View Solution.

Hi,
You can download a free application like CPU-Z or Speccy to find your RAM frequency and many other internal features of your computer.
CPU-Z: http://www.cpuid.com/softwares/cpu-z.html
as you said you also installed 2 new RAM's along with Graphic Card,
also check your graphic card drivers... may be they are not set to display when wake up!
Try to download updated software for your graphic card..
Hope this helps
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No video signal after changing resolution...

Hi guys...
I have had this issue in the past.
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D4RK51D3 G.F.X. LLC
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Hello Oremus Productions,
First of all, sorry for this frustrating issue. The first thing to check with OS X Mavericks or Yosemite is the permissions of your Adobe folders. Here is blog post to check out: Premiere Pro CC, CC 2014, or 2014.1 freezing on startup or crashing while working (Mac OS X 10.9, and later)
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1: /usr/bin/X (0x8048000+0x5cc55) [0x80a4c55]
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6: /usr/bin/X (0x8048000+0x94b3f) [0x80dcb3f]
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8: /usr/bin/X (0x8048000+0x1a685) [0x8062685]
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Caught signal 7 (Bus error). Server aborting
Last edited by hw-tph (2010-02-13 12:32:51)

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The symptoms- Often when playing demanding games, the video signal will simply cut off. Audio and response to the keyboard will be maintained briefly, but end soon after.
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Hiya!
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No video signal after crash

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