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/  Forum Index
   /  Amiga OS4 Hardware
      /  Affordable G4 replacement.
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PosterThread
DBAlex 
Re: Affordable G4 replacement.
Posted on 11-Sep-2010 13:33:56
#21 ]
Cult Member
Joined: 23-Jul-2006
Posts: 756
From: UK

@billt

Right, so it can be done then. I've seen vids on YouTube that make it look really difficult... I guess with the right tools and skill it can be done more easily. (Probably not by me, not too great with a soldering iron... )

@crisot

Cool! Well hope many people find this useful. If it means more people being able to use their broken hardware again it can only be a good thing.

_________________
A1200, 68060/64MB/1.2GB/WiFi/AGAtoCRT/OS3.9 Pegasos I, G3 600Mhz/512/9200SE/80GB WinUAE, Ryzen 5 2400G/Vega11, 8GB DDR4, 256GB SSD,Win 10 Pro x64 Amiga Forever !

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Deniil715 
Re: Affordable G4 replacement.
Posted on 11-Sep-2010 13:44:52
#22 ]
Elite Member
Joined: 14-May-2003
Posts: 4236
From: Sweden

That reminds me. I need to overclock to 1GHz now that I'm doing video cutting and recoding

_________________
- Don't get fooled by my avatar, I'm not like that (anymore, mostly... maybe only sometimes)
> Amiga Classic and OS4 developer for OnyxSoft.

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ssolie 
Re: Affordable G4 replacement.
Posted on 13-Sep-2010 16:01:57
#23 ]
Elite Member
Joined: 10-Mar-2003
Posts: 2755
From: Alberta, Canada

@Crisot
Awesome work!

Sent you a PM.

_________________
ExecSG Team Lead

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billt 
Re: Affordable G4 replacement.
Posted on 13-Sep-2010 16:55:53
#24 ]
Elite Member
Joined: 24-Oct-2003
Posts: 3205
From: Maryland, USA

As for previous discussions about PowerMac module adapter,

I'm trolling ebay for dirt-cheap PowerMac parts to kill and probe out. Made a Megarray PCB footprint as a start. I bought a few Megarray connectors some years ago, not sure where I put them though, but they aren't horribly expensive. Who has a broken AmigaOne module/motherboard for probing to figure out the connector pinout on our end? I'd rather not kill my XE board... _If_ we get anywhere, who's brave enough to test such a thing? :)


_________________
All glory to the Hypnotoad!

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Crisot 
Re: Affordable G4 replacement.
Posted on 7-Oct-2010 20:57:29
#25 ]
Regular Member
Joined: 25-Jan-2004
Posts: 163
From: France

Finally, I installed a 7455A@1266 in my AOne.

First information, I found why I can't set my CPU at 1266... Above 1133, Uboot show a wrong frequency, but the real CPU speed is correct.

I wanted to overclock the CPU, but with the 4 dips switchs, the multiplier jumps from 1266 to 1533. Of course at 1533 the machine crashs in a few minutes. So I finally tracked the 5e PLL, and removed it, to get intermediate frequencys. My 1266 Mhz 7455A is actually clocked at 1466 and run stable with a slightly raised vcore (and of course a correct cooling). Trying to make it crash.

I haven't done too much benchmarks, but SysSpeed give me 2140 MIPS and 810 MFLOPS, Quake 2 timedemo runs 31.5 fps in 1280*960 with 9000 pro. Quake 3 and SuperTuxKart are still unplayables

But at least, it works.

_________________
AmigaOne XE --- 7455A@1400 --- Radeon 9000 Pro --- RAM 2GB --- SSD 40GB

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pavlor 
Re: Affordable G4 replacement.
Posted on 7-Oct-2010 21:03:10
#26 ]
Elite Member
Joined: 10-Jul-2005
Posts: 9578
From: Unknown

@Crisot

Good!

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tonyw 
Re: Affordable G4 replacement.
Posted on 7-Oct-2010 22:48:24
#27 ]
Elite Member
Joined: 8-Mar-2003
Posts: 3240
From: Sydney (of course)

@Crisot

Now there's a modern-day hacker for you!

Well done!

_________________
cheers
tony

Hyperion Support Forum: http://forum.hyperion-entertainment.biz/index.php

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Hypex 
Re: Affordable G4 replacement.
Posted on 8-Oct-2010 5:20:17
#28 ]
Elite Member
Joined: 6-May-2007
Posts: 11180
From: Greensborough, Australia

@Crisot

Quote:
Replacing a BGA with a hot air station is "not very hard", but it needs practice.


I have a heat gun here. Will this let me do some CPU hacking?

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Tuxedo 
Re: Affordable G4 replacement.
Posted on 8-Oct-2010 20:16:45
#29 ]
Elite Member
Joined: 28-Nov-2003
Posts: 2341
From: Perugia, ITALY

@Crisot

Really ionterestingyour new G4

Any bench to post?
like Blender, lame or ffmpeg comparision ?

For the TuxKart problem I think that i can work REALLY faster we can have a new 3D environment that a faster CPU...

_________________
Simone"Tuxedo"Monsignori, Perugia, ITALY.

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busytech 
Re: Affordable G4 replacement.
Posted on 27-Aug-2015 14:39:41
#30 ]
Regular Member
Joined: 20-Nov-2003
Posts: 208
From: Mississauga, Canada

Crisot has not logged on for over a year. Does anyone have contact details for him?

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K-L 
Re: Affordable G4 replacement.
Posted on 27-Aug-2015 16:24:13
#31 ]
Super Member
Joined: 3-Mar-2006
Posts: 1410
From: Oullins, France

@busytech

Yes, he's still around on French Amigans forums. H'll be at the Alchimie 2015 in november (in France).

_________________
PowerMac G5 2,7Ghz - 2GB - Radeon 9650 - MorphOS 3.14
AmigaONE X1000, 2GB, Sapphire Radeon HD 7700
FPGA Replay + DB 68060 at 85Mhz

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fishy_fis 
Re: Affordable G4 replacement.
Posted on 27-Aug-2015 16:48:36
#32 ]
Elite Member
Joined: 29-Mar-2004
Posts: 2156
From: Australia

That's some serious thread necromancy. :)
Interesting read though. Missed this thread 1st time around.

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busytech 
Re: Affordable G4 replacement.
Posted on 27-Aug-2015 16:53:33
#33 ]
Regular Member
Joined: 20-Nov-2003
Posts: 208
From: Mississauga, Canada

@K-L

PM sent

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