Mac Pro no video.

Hi

I have a mac pro A1186 emc no 2113 M43 base/3.0qx/2x512/7300gt/250/sd

It had a faulty video card that i removed and replaced a blown capacitor.
the video card worked for a while..so being confident I replaced all the caps that were going bad.
Then as i replaced card..pop!!! I think i had a short on the card...

So needless to say i now have no video...
I replaced the video card with what was a "used known working" (Nvidia A386 rev A01) from ebay.
Still no video.

On pressing test switch LEDS show....

EFI = ON
Power = ON
GPU = OFF

Overtemps
CPUA = OFF
CPUB = OFF

FAIL
CPUA = OFF
CPUB = OFF

TRICKLE = ON

SLEEP = no led missing

I have tried placing video card in other slots to see if power in different slot.
No video.
on Removing video card, heatsink feels warm, so maybe getting power.

I have started mac as target drive to remove files.
I have also booted Mac to OS as I can hear volume chirp go up and down while using keyboard. I can also eject DVD/CD using keyboard.

I have also tried booting with ASD 35108.

Questions are:

1.Is it possible that I purchased an incorrect video card or faulty one?? possible.
2.Is it possible to test power supply to make sure i have all voltages?
3.IS it possible to test logic board to see if I have blown a SM fuse ,resistor or voltage regulator?

I have a pc RADION HD 5770
Placing in PCIE slot fan runs full speed =Still no video but boots (needs flashing for mac)

with Nvidia A386 rev A01 in slot 1 machine boots..but still no GPU.

Where should I start diagnosis.
Thanks for your help

let me be clear...
the original video card, had a swollen (blown capacitor)
This is where the repair took place.
Later I had the same problem and decided to repair replace all the old dried capacitors...this is how i shorted out video card...more likely blowing motherboard.

I hope this is clear

Motherboard for $150?
Cant be mad at that

however I would like to find the fault and repair.
at least know if its PSU or motherboard and confirm.
I have set up a network on this computer..is there any way to remote login and switch on screen share?

power mac no video

wheres the bang head face!!!!

Yes this is the card!! was sold as pcie for Mac pro...duuoooohhh!

Ok so let me get this straight..Mac has a G5 PCIE graphic slot.
I just checked my Power MAC G5 A1047 emc1969c
card does not fit..so assume there is an in between model.

I purchased a video card, one from apple when this machine was fully working (with failing original card)..i forget the model..it was the one they issued as an upgrade with the white exhaust fan.
Plug and play they said...this one did not work...hence my original repair to the failing card.


any suggested known good, correct replacements? with exact model numbers and correct flash firmware?


Wondering if anyone has had good experience at flashing one of these?

http://www.ebay.com/itm/Nvidia-Quad...343?pt=PCC_Video_TV_Cards&hash=item3f25424797
thanks again

Ok so im trying to find known achieved flashing of RADION HD 5770


I do not have a PC..so are there any way to load a boot code CD/DVD to flash this card?

Anyone ever try this?

I found this:

http://forum.netkas.org/index.php?topic=692.0

anyone??? Bueller?? Bueller?? lol

On inspection I have a missing power cable to the radeon HD 5770
I will try purchase in next few days.
Anyone know if this card will boot or if needs to be flashed?
Thanks again

Anyone care to comment?

Thanks 666... so i assume i can do a fresh drive install from dvd with 10.6.4 it will auto configure?
got power cable...something tells me 10.6.8 is installed..so this could be bad ????

thinking dead pcie buss
i need to find a known working vid card to check motherboard.

Looks like freedos wont boot in this machine.
it eventually ejects the disc when holding down C..
tried disc in laptop and boots to dos....blown pcie buss?

Do you have a suggested known working model,,,7300GT?
Is there a way to purchase with correct known model and serial number in order to purchase with correct EFI?

ok will give a try...how do i get info on os in target mode...also whilst in target are there anyway to switch monitor share on...or if this possible via network setup?

Looks like my old G5 will not show as a possible boot in both methods.
I assume too old as a boot option.

I will now try the different DOS options you suggest and moving video card into different slots..

And once again thanks for the help

so tried to check drive (target disk mode) on Macbook and it indeed shows as 10.6.8

I tried moving graphic card to other slots..(remember this video card takes up the space of 2 cards). on boot freedos.. still blank screen.

Should i proceed to try other dos programs or assume mother board at this point as we now know i have 10.6.8 installed....???

Thanks

Ok , if you didnt read all the post..i will explain once more.

I had the original video card fault.. it showed a swollen or dry capacitor.
I replaced with a new capacitor = card worked fine until it showed other faults.
so...i replaced all caps on this card...here's where a problem may have arisen.
On power up there was a pop..and it blew the cap one of the caps on video card...thats where the concern is for the blown motherboard comes into play...a short circuit on video card may have zapped the motherboard.


I know you can not boot from G5 mac..as the osx is not supported..i get that.
i managed purely to read the osx from an intel macbook..it shows osx 10.6.8
as advised.

now..10.6.8.. is meant to support this card..if that is the case i still have no video output.

It would be great if I could prove that the video card was operating under a dos boot..or not..in order to prove motherboard either working or failed.

At this point I may have to buy a known working video card..just to find motherboard is fried...unless someone can inform me of a way to network to this cpu and look at it from a diagnostic state ( switching on monitor share via ethernet ).