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Offline caver99Topic starter

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powermac differences
« on: May 27, 2012, 02:38:45 PM »
What is the difference between a G4 and a G5 for morph os will it work on the G5?
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Offline itix

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Re: powermac differences
« Reply #1 on: May 27, 2012, 02:50:58 PM »
Only G4 PowerMac is supported. See here.
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Offline Iggy

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Re: powermac differences
« Reply #2 on: May 27, 2012, 03:00:38 PM »
Quote from: caver99;694399
What is the difference between a G4 and a G5 for morph os will it work on the G5?

Should the G5 ever be supported, there are advantages and disadvantages to its design.

First, as it can only hold two hard drives (without third party hard drive cages) and as some G4s (like my FW800) can hold four its got less hard drive expansion.

However, the hard drive interface is SATA (although only 1.5 GBs).

Both machines use an AGP video card slot, but the fastest G4 is only 4X while the G5 is 8X.

Depending on the model the G5 features PCI and PCI-X expansion slots while the G4 uses 64bit PCI slots.

The G4 can have 1.5 to 2GB of memory while the G5 can have up to 8 GB.

And finally, the G4 has a max CPU speed of 1.42 GHz (or 2.0 with third party CPU boards) while the G5 maxes out at 2.7GHz.
« Last Edit: May 27, 2012, 03:07:46 PM by Iggy »
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Offline caver99Topic starter

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Re: powermac differences
« Reply #3 on: May 27, 2012, 03:48:13 PM »
OK so the G4 is the one to go for does it matter if its duel or will only one be used?
I am asking as i will be getting a Powermac very soon well it one of them or a macmini just like thew expandability of the powermac over the mini but the mini is nice and small
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Offline Iggy

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Re: powermac differences
« Reply #4 on: May 27, 2012, 04:09:43 PM »
Quote from: caver99;694404
OK so the G4 is the one to go for does it matter if its duel or will only one be used?
I am asking as i will be getting a Powermac very soon well it one of them or a macmini just like thew expandability of the powermac over the mini but the mini is nice and small

Personally i choose a 1.42 dual CPU FW800 MDD Power mac.
Yes, only one CPU is used under MorphOS (I've been looking at overclocking a single 1.33GHz Xserve processor card to 1.67 GHz), but its the fastest G4 Power mac available (and will outperform a 1.5 GHz mac Mini)..

I've got an NEC based USB 2.0 PCI card and a Soundblaster Live audio card installed in it.
I've also got an ATI Radeon 9800XT video card (although for now I'd recommend an R200 card for 3D hardware acceleration).

All this can be bought fairly cheaply.
My Powermac was under $75.
The USB card can be had for about $5 (and the Soundblaster is only a little more).

Many Powermacs come with a Radeon 9000Pro video card or these can be purchased starting at around $30.
Other alternatives include the 8500, 9200/9250, 9600, 9700, or 9800.
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Offline Terminills

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Re: powermac differences
« Reply #5 on: May 27, 2012, 04:16:13 PM »
Quote from: Iggy;694401
Both machines use an AGP video card slot, but the fastest G4 is only 4X while the G5 is 8X.

Depending on the model the G5 features PCI and PCI-X expansion slots while the G4 uses 64bit PCI slots.


Some G5 models had PCIE.

http://www.everymac.com/systems/apple/powermac_g5/specs/powermac_g5_quad_2.5.html

Not that it matters right now since MorphOS doesn't support them yet or at all. :(
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Offline Iggy

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Re: powermac differences
« Reply #6 on: May 27, 2012, 05:08:31 PM »
Quote from: Terminills;694406
Some G5 models had PCIE.

http://www.everymac.com/systems/apple/powermac_g5/specs/powermac_g5_quad_2.5.html

Not that it matters right now since MorphOS doesn't support them yet or at all. :(


Yes, but when they were still exploring the idea, the MorphOS team was suggesting sticking with the AGP models.
And those models should be able to take most of the video cards we're currently using.
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Offline caver99Topic starter

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Re: powermac differences
« Reply #7 on: May 27, 2012, 06:38:05 PM »
So it looks like it will be a PowerMac G4 then when i get one
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Offline hbarcellos

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Re: powermac differences
« Reply #8 on: May 27, 2012, 08:00:47 PM »
As far as I know, G4s are way louder than G5s... Which is something important to consider, but, as G5 are not yet supported...
Any information about silent g4 models?
My 933 quicksilver is really loud.
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Offline Iggy

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Re: powermac differences
« Reply #9 on: May 27, 2012, 08:23:35 PM »
Quote from: hbarcellos;694413
As far as I know, G4s are way louder than G5s... Which is something important to consider, but, as G5 are not yet supported...
Any information about silent g4 models?
My 933 quicksilver is really loud.


I have heard this reported before, but primarily with the MDD models.
My own Quicksilver (which also had a 933MHz processor) seemed quite quiet to me (especially in comparison to my PC).

My current Powermac, an FW800, is considerably more quiet then earlier MDDs as apple responded to this complaint.

Obviously nothing is going to be as quiet as a Mac Mini as its compact form has a very small cooling fan.
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Offline Crisisdog

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Re: powermac differences
« Reply #10 on: May 27, 2012, 08:29:56 PM »
Quote from: hbarcellos;694413
As far as I know, G4s are way louder than G5s... Which is something important to consider, but, as G5 are not yet supported...
Any information about silent g4 models?
My 933 quicksilver is really loud.


My watercooled G5 @ 2.7 GHz is freakin' loud under load.  I swear something's wrong with it, but I tore it apart a few times and see no leaks.  If they ever support a G5, stay away from the higher end models that are watercooled.  The air cooled 1.8 and 2.0 are silent.
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Offline Jeff

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Re: powermac differences
« Reply #11 on: May 27, 2012, 08:39:37 PM »
What exactly is the fastest/best Powermac G5 that was air cooled?
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Offline Iggy

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Re: powermac differences
« Reply #12 on: May 27, 2012, 08:46:21 PM »
Quote from: Jeff;694420
What exactly is the fastest/best Powermac G5 that was air cooled?

AGP models, the dual 2.7 GHz.
PCIe models, the quad.


Edit - Sorry, I mis-read that.
AIRCOOLED.

Kronos is right. 2.5 and 2.7 is watercooled.

On that note, I don't think even these models are that loud.
But I assume its a matter of perspective, as my PCs have always had additional fans.
« Last Edit: May 27, 2012, 10:02:19 PM by Iggy »
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Offline Kronos

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Re: powermac differences
« Reply #13 on: May 27, 2012, 09:16:13 PM »
I'm quite sure everything above the 2x2.3GHz is watercooled.

2.7GHz are defintly watercooled (unless there are 2 versions which doesn't seem to be the case).

G4 QuickSilvers only feature simple fans with buildin (primitive) temp-sensor. Replacing them with quality fans and adding some "smart" fan controller makes a huge difference.

Note

G4 No1 1.8GHz 45°C 3800RPM
G4 No2 (unused) 1.8GHz 44°C  3200RPM
Case 41°C 1300RPM

Yes it's audiable, but surely far less noisy than a MacMini under load (which makes no difference on the PMac).
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Offline glitch

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Re: powermac differences
« Reply #14 on: May 27, 2012, 09:24:47 PM »
I've got a dual 2.5 - it's water cooled.  Gets noisy at times, especially under load with things like the BOINC client.  I would LOVE to buy MorphOS for it as I think it would scream.
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