Register FAQ / Rules Forum Spy Search Today's Posts Mark Forums Read
Go Back   MacRumors Forums > Apple Hardware > PowerPC Macs

Reply
 
Thread Tools Search this Thread Display Modes
Old Jun 22, 2010, 07:59 PM   #1
jdl8422
macrumors 6502
 
Join Date: Jul 2006
Location: Louisiana
How many hard drives can my G4 power supply handle?

I just bought a power mac g4 quicksilver. not too bad for $70. I believe it has a 340w power supply. How many times can I split the molex power connection before it gets to be too much for the power supply? I want to try and fit at least 6-8 hard drives on this machine. Should I get something like western digital green to save on power? Could it handle a bunch of western digital blacks? Is there any kind of calculation I can do?
__________________
jdl8422 is offline   0 Reply With Quote
Old Jun 23, 2010, 12:50 AM   #2
Hrududu
macrumors 68000
 
Hrududu's Avatar
 
Join Date: Jul 2008
Location: Wichita KS
Thats probably pushing a little far. Especially if you're running an ADC display too. You could probably get away with 5, but any more than that might push an 8 year old power supply over the edge.
__________________
Quad 2.5 G5, MBP 2.6 17", DP 2.0 G5, DP 1.42 MDD, 17” PowerBook 1.67, 12" PowerBook 1.5, TiBooks 867 & 667, iMac G3 500, Cubes 500 & 450, B&W G3 450 & 350, iBook 300's & 366, Beige G3 350, PDQ G3 233
Hrududu is offline   0 Reply With Quote
Old Jun 23, 2010, 06:13 AM   #3
landscapeman
macrumors regular
 
Join Date: May 2010
Location: SW Florida
Like Hrududu said, it seems a little much for a 380w supply. I would ether limit the amount of drives or upgrade the supply. Good Luck
__________________
MBP 15", Hackintosh, Galaxy S4 deserter.
landscapeman is offline   0 Reply With Quote
Old Jun 23, 2010, 07:20 AM   #4
jdl8422
Thread Starter
macrumors 6502
 
Join Date: Jul 2006
Location: Louisiana
is it possible to upgrade the power supply to a newer one? One that did not come with the powermac or made specifically for the powermac?
__________________
jdl8422 is offline   0 Reply With Quote
Old Jun 23, 2010, 10:11 AM   #5
zen.state
Banned
 
Join Date: Mar 2005
Modern drives rarely use over 15-18 Watts each. Even the 10-15,000 rpm drives. It could handle 8 power-wise but only if you had a low power video card that doesn't need a molex connection. Heat would be the main issue you will run into. If you HAVE to use 8 then make at least 2-3 external.

Personally I would not put more than 4. I have 3.5 TB in 4 drives and only 2 of them are internal simply for the sake of keeping heat low inside the case.
zen.state is offline   0 Reply With Quote
Old Jun 23, 2010, 11:31 AM   #6
mr1970
macrumors member
 
Join Date: Feb 2008
Be careful if it's one of the models with ADC video - the PSU has specific pin-outs to run the monitor through the video card so it's not an off the shelf job to replace. Fun as a project though - plenty of examples through Google.
mr1970 is offline   0 Reply With Quote
Old Jun 23, 2010, 02:22 PM   #7
max¥¥
macrumors 6502a
 
Join Date: Aug 2008
Location: In OSX Snow Leopard / Godalming UK
i would suspect the mac can handle 6 drives, i think i had 4 on a sawtooth (witch a 230w psu i think)
__________________
'08 MBP 2.4ghz 4gb ram Lion Snow Leo|iBook G3 500mhz 256mb ram Tiger|PowerMac G5 DP 2.5ghz 3gb ram Leo|B/W G3 350mhz 256mb ram MintPPC|Xserve G4 1Ghz DP 2Gb ram 2TB Hdd Leo Server|+ some more macs
max¥¥ is offline   0 Reply With Quote
Old Jun 28, 2010, 10:18 AM   #8
conbot
macrumors newbie
 
Join Date: Jun 2010
Exclamation Dude, don't add more HD space

I would suggest you just stick with one HD.I bought a powermac g3 yesterday, and it was in perfectly good condition(my very first mac). It powered up, made the dunnn chime, and booted up in Mac OS 10.3(Panther). When a lightening storm was passing by, I shut down and unplugged my mac for an hour, then when I plugged it back in, and pressed the on button on the keyboard, it, it didn't light up. I pressed the On/Off button on the mac itself, and nothing happened. I found out it was the power supply, which may not have been ready.
conbot is offline   0 Reply With Quote
Old Jun 29, 2010, 01:01 PM   #9
drewdle
macrumors regular
 
Join Date: Apr 2010
Location: Nanaimo, BC
However many brackets there are in the case is how many drives the power supply can handle. I can't recall if there are three or four bays in the Quicksilver. Any more than that and you're pushing the PSU into borrowed time. That's of course not counting external drives, as the PSU should be equipped to handle both internal and external drives of however many slots there are, but once again, the more you add, the harder you're working it.
__________________
~ Drewdle ~
Mini 2.0Ghz C2D/2Gb RAM/120Gb/10.6.4
iMac G4 700Mhz/1Gb RAM/160Gb/10.4.11
iBook SE 466Mhz Graphite/576Mb RAM/160Gb/10.4.11
drewdle is offline   0 Reply With Quote

Reply
MacRumors Forums > Apple Hardware > PowerPC Macs

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Similar Threads
thread Thread Starter Forum Replies Last Post
got a LaCie external hard drive at a sale but has no power supply Sossity Mac Peripherals 5 Aug 30, 2013 06:56 PM
FW800 External hard disk power supply abthegreat Mac Peripherals 0 Aug 24, 2013 01:38 PM
hard drive docks - question about power supply? dapitts08 Mac mini 8 Apr 17, 2013 09:56 AM
MDD power supply G5 tower power supply? havokalien PowerPC Macs 7 Aug 12, 2012 01:46 AM
Power Macintosh G5 1.8 DP 2 x 4TB hard drives in RAID 0 ??? hottyson PowerPC Macs 1 Jul 9, 2012 07:03 AM

Forum Jump

All times are GMT -5. The time now is 01:42 PM.

Mac Rumors | Mac | iPhone | iPhone Game Reviews | iPhone Apps

Mobile Version | Fixed | Fluid | Fluid HD
Copyright 2002-2013, MacRumors.com, LLC