Hello,

i would like to boot MorphOS on my Quad G5 with a Radeon X1950Pro but don't start...

Any ideas please ?

does powermac works? does cdrom load cdrom with morphos?
check if caps lock is working

Is there a boot chime? Does the machine start with default nVidia card?

There is a boot chime with nvidia card but no with Radeon card...

Quad works under MacOS and nvidia card

CD-Rom drive is ok, MorphOS start on CD but stop...

@zukow : capslock key ?



[ Edité par Papiosaur 10.11.2019 - 06:02 ]

Being able to toggle the CAPS-LOCK LED means that the G5 got to the point of starting basic USB.

You could also keep in both GFX-card to see if your thrown back to the OF "no boot device logo" (sad face).

Are you able to enter OpenFirmware-console useing the Radeon-card?
If yes, you may boot MorphOS manually:

>boot cd:,\mac_ppc64\boot.img

Then you can see what happens: Is kernel loading? Does Morphos-System load?

If you cannot enter Open Firmware, your Radeon (PC-flashed card?) is not recognized by OF and if MOS won't boot, you cannot see what's the reason for.
Very strange that there is no boot-chime with radeon-card. If this card fits to physical specs of slot (electricaly) then there should be a chime, even if card is not initialized by OF.

Is the extra pciE G5 power cable properly connected to the X1950 graphics card ?

> Are you able to enter OpenFirmware-console useing the
> Radeon-card? [...] If you cannot enter Open Firmware,
> your Radeon (PC-flashed card?) is not recognized by OF

I guess it's a non-reflashed x86 ROM card, so no OpenFirmware access.

> If this card fits to physical specs of slot (electricaly) [...]

Isn't PCIe physically and electrically compatible over all versions, so that a PCIe v1 card works in a PCIe v4 slot and a PCIe v4 card works in a PCIe v1 slot?

@cyfm : with a extra pciE G5 power cable properly connected, i have the same problem : no shime...

I think the two card X1950pro are flashed for PC...

Is there a solution to flash it for Mac please ?

Check card in other PCI slot and maybe try with other card. 1950XT / 1900XT cards are preffered as i mentioned in HOWTO thread.

Quote:

I have the same issue with Dual Core 2,3 GHz and two of my Radeons X1950. I'm yet to test the third one. I guess you have to test a card that's "MorphOS compatible" based on zukow's pictures.

X1950 Pro here - bought 2 weeks ago. Works fine. You need to make sure you've connected the display cable to the right DVI port though.