Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
CPU Upgrades [Solved]
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index Gentoo on PPC
View previous topic :: View next topic  
Author Message
Bones McCracker
Veteran
Veteran


Joined: 14 Mar 2006
Posts: 1609
Location: U.S.A.

PostPosted: Mon Apr 09, 2007 3:13 pm    Post subject: CPU Upgrades [Solved] Reply with quote

I am wondering what people's experiences have been with macppc CPU upgrades and Gentoo.

I currently have a stock G4 500 AGP (cpu 7400). After purchasing it six years ago, I added RAM and replaced the modem with a "stealth serial port". Other than that I had never upgraded it and have been waiting for years for it to die or become painfully slow (meanwhile it has outlasted a desktop PC and three laptops).

Last week I finally added a new hard drive to replace the 24 GB IBM 'DeathStar' it came with (which has unexpectedly survived 6+ years of nonstop use). So I'm wondering if a CPU upgrade would be worth the money and if it would be problematic. I see there are replacement CPUs by Sonnet and others, but my instincts tell me I won't get much out of it and that one or more busses will turn out to be the limiting factor(s).

Has anyone upgraded something similar? Were there any problems with the kernel, drivers, etc? Was it worth it?


Last edited by Bones McCracker on Wed Apr 11, 2007 6:26 pm; edited 1 time in total
Back to top
View user's profile Send private message
JoseJX
Retired Dev
Retired Dev


Joined: 28 Apr 2002
Posts: 2774

PostPosted: Mon Apr 09, 2007 6:09 pm    Post subject: Reply with quote

The kernel won't be a problem, it supports the CPU upgrades transparently. From the sound of it, you have a "Sawtooth" Mac ( http://lowendmac.com/ppc/g4saw.shtml ). These macs can actually take a whole lot of different CPU upgrades, including the new 7448 procs from Freescale. Lowend Mac has some links to some accelerators for this machine. I personally don't have one of these machines, but the G3 300 upgrade that I stuck in my 8500/180 is quite an improvement, with a much more resource constrained bus than your G4.
_________________
Gentoo PPC FAQ: http://www.gentoo.org/doc/en/gentoo-ppc-faq.xml
Back to top
View user's profile Send private message
Bones McCracker
Veteran
Veteran


Joined: 14 Mar 2006
Posts: 1609
Location: U.S.A.

PostPosted: Tue Apr 10, 2007 4:45 pm    Post subject: Reply with quote

Yes, it's a sawtooth. :D
Thanks!
Back to top
View user's profile Send private message
DirtyHairy
l33t
l33t


Joined: 03 Jul 2006
Posts: 608
Location: Würzburg, Deutschland

PostPosted: Wed Apr 11, 2007 9:48 am    Post subject: Reply with quote

I'm using a sonnet encore in a G4 digital audio (gone from 400MHz to 1.33GHz) which works flawlessly...
Back to top
View user's profile Send private message
Bones McCracker
Veteran
Veteran


Joined: 14 Mar 2006
Posts: 1609
Location: U.S.A.

PostPosted: Wed Apr 11, 2007 6:25 pm    Post subject: Reply with quote

Great! Thanks, guys. I'm going to start looking these over.

[Edit]: The 7448 looks nice, although it looks like it has a bit less tolerance for voltage fluctuation than the 7447 (which is also a lot cheaper right now). It also has a modified pinout configuration (two pins); seems to have something to do with dynamic frequency management.

I do see 7448-based upgrades that specifically state they are compatible with this machine (NewerTechnology and others).

I think I'll go ahead and do this. Right now, my machine rarely uses more than a third of its RAM but it frequently pegs out the CPU.

Thanks again for the help.
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index Gentoo on PPC All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum