Hello,

i have a problem with my Quad G5 sice 3 weeks, at startup (power) fan speed up and nothing...

Sometimes MorphOS start...

Any ideas please ?

Thanks

Will it start from the MorphOS installation media?

@Newsense : impossible to open the DVD drive...

When i press the power button, the red led switch on then switch off... maybe could help...

[ Edité par Papiosaur 26.06.2022 - 08:01 ]

https://discussions.apple.com/thread/2589005

Quote:

Sadly, it may be anything, ranging from a dying PSU to an overheated (and partially desoldered) U4 "KODIAK" kinda-northbridge chip on the back of the motherboard. If you have a known working PSU I'd reccomend starting with that.

Thanks a lot for yours answers, i will investigate...

Start by disconnecting power from the optical drive - if that helps, it’d point out to issues with the power supply.

Thanks jacadcaps for the tips.

Seems to be my graphic card is out, i have changed it and now is ok (for the moment..).

Radeon X1950Pro 256Mb replaced by a X1950GT 512Mb.

Thanks to all for your help!

New question: MorphOS recognize only 256Mb on my X1950GT, normal ?

[ Edité par Papiosaur 26.06.2022 - 17:33 ]

Quote:

yes, that's normal

Thanks Zukow for your answer. The 512Mb are used or only 256 are supported please ?

> The 512Mb are used or only 256 are supported please ?

Only up to 256 MiB VRAM are used/supported by MorphOS.

Thanks Andreas_Wolf!