Memory Argument with Windows/Mac

Fox34 · Jan 20, 2007

Well as i write this I am at a LAN party and everyone here is sayin that the Powermac G5 supports upto like 8 Gigs of RAM, and windows will only do like 3. But no one can find a credible source, I was wondering if anyone of you could settle this.

Grings · Jan 20, 2007

32bit has a limitation of 4 gig max, though people have found windows unstable with this
vista and 64 bit processors can handle more

Wile E · Jan 20, 2007

Actually, 32bit XP, on average, usually only recognizes about 3GB of ram because it counts the pagefile as part of the ram. If you eliminated the pagefile, it would recognize all 4GB, but it doesn't tend to run too stable that way(trust me). 32bit Vista suffers the same fate, from what I've been told. 64bit versions don't have that limitation.

OS X easily recognizes 8GB of ram, I've seen it myself on my best friend's content creation machine, but I don't know if 8GB is the upper limit. I do know that OS X Server supports more than 8GB.

Fox34 · Jan 20, 2007

Thanks for the reply's that basically ended the fight down here at the LAN party

Deleted member 3 · Jan 20, 2007

It's just a limit of 32 bit addressing. PAE is one of the solutions. However 64 bit is the way it'll be in the future. 64bit allows 16 exabytes.
We shall be using that for many years to come. In comparison we went from 4MB to 4GB at first, that's 1000 times as much. Now we go from 4GB to 16EB which should keep you occupied for a long time

Dippyskoodlez · Jan 20, 2007

G5 is a 64bit CPU, running tiger, its 64 bit too, Ram is not a limitation.

However, for the Intel mac pro's PAE comes into play.

Steevo · Jan 20, 2007

As well as counting all the memory address space for PCI, ISA, and onboard RAM for video cards if it can be mapped to main memory. So any hardware that was made after PIO.

So more than 2.5Gb of RAM is useless if you have a 1Gb pagefile and 512MB video card. I believe PAE still takes another cycle to determine address and then yet another to access the address.

http://www.microsoft.com/whdc/system/platform/server/PAE/PAEdrv.mspx

Dippyskoodlez · Jan 20, 2007

Steevo said:
As well as counting all the memory address space for PCI, ISA, and onboard RAM for video cards if it can be mapped to main memory. So any hardware that was made after PIO.

So more than 2.5Gb of RAM is useless if you have a 1Gb pagefile and 512MB video card. I believe PAE still takes another cycle to determine address and then yet another to access the address.

http://www.microsoft.com/whdc/system/platform/server/PAE/PAEdrv.mspx

Yes, PAE isnt exactly great, but we're talking about a G5 here, not the mac pro.'

G5 is totally different ;D

Wile E · Jan 22, 2007

MacPros are supposed to support more than 4GB as well. I haven't seen it myself to confirm, however.

System Name	Amber
Processor	AMD Athlon 64 x2 3800+ Toledo 3.0GHz/2.0GHz 1.5V
Motherboard	DFI Lanparty UT NF4 SLI Expert
Cooling	Air: 1 80mm-Intake-top \| 4-120mm 3-intake-1-exhaust \| Proc 120mm blue orbII \| N.B-T.T Key 3\|
Memory	2GIG, 4x512 Kingston Hyper-X DDR333 PC 2700@167Mhz \|2-2-2-5\|-7-1T-8(CPU-Z) Dual channel
Video Card(s)	2 PNY Verto 8600GT'S in SLI, 670MHz/540MHz(Core)800MHz/700MHz
Storage	320 Gig Western digital SATA
Display(s)	Sony 17" LCD 1280x1024 @ 75Htz
Case	Sunbeam clear acrylic
Audio Device(s)	Native Instuments Guitar Rig 3
Power Supply	520 Watt Aspire Dual rail +12#1 16 amps +12#2 18 amps(I think)
Software	Fedora Core 8, Windows Vista

Processor	R7 5800x3D
Motherboard	MSI x570 Tomahawk
Cooling	XSPC Raystorm Edge,EK QS P420M,EK D5pwm Revo Res
Memory	32gb Corsair Vengeance RT 3600 cl16
Video Card(s)	Zotac 3070ti Amp Extreme
Storage	Samsung 980pro 1tb x2
Display(s)	MSI MPG321QRF QD
Case	Corsair 7000D
Power Supply	EVGA 1000 P2
Mouse	G900
Keyboard	Corsair k60 RGB PRO
Software	Win 11

System Name	The ClusterF**k
Processor	980X @ 4Ghz
Motherboard	Gigabyte GA-EX58-UD5 BIOS F12
Cooling	MCR-320, DDC-1 pump w/Bitspower res top (1/2" fittings), Koolance CPU-360
Memory	3x2GB Mushkin Redlines 1600Mhz 6-8-6-24 1T
Video Card(s)	Evga GTX 580
Storage	Corsair Neutron GTX 240GB, 2xSeagate 320GB RAID0; 2xSeagate 3TB; 2xSamsung 2TB; Samsung 1.5TB
Display(s)	HP LP2475w 24" 1920x1200 IPS
Case	Technofront Bench Station
Audio Device(s)	Auzentech X-Fi Forte into Onkyo SR606 and Polk TSi200's + RM6750
Power Supply	ENERMAX Galaxy EVO EGX1250EWT 1250W
Software	Win7 Ultimate N x64, OSX 10.8.4

System Name	Amber
Processor	AMD Athlon 64 x2 3800+ Toledo 3.0GHz/2.0GHz 1.5V
Motherboard	DFI Lanparty UT NF4 SLI Expert
Cooling	Air: 1 80mm-Intake-top \| 4-120mm 3-intake-1-exhaust \| Proc 120mm blue orbII \| N.B-T.T Key 3\|
Memory	2GIG, 4x512 Kingston Hyper-X DDR333 PC 2700@167Mhz \|2-2-2-5\|-7-1T-8(CPU-Z) Dual channel
Video Card(s)	2 PNY Verto 8600GT'S in SLI, 670MHz/540MHz(Core)800MHz/700MHz
Storage	320 Gig Western digital SATA
Display(s)	Sony 17" LCD 1280x1024 @ 75Htz
Case	Sunbeam clear acrylic
Audio Device(s)	Native Instuments Guitar Rig 3
Power Supply	520 Watt Aspire Dual rail +12#1 16 amps +12#2 18 amps(I think)
Software	Fedora Core 8, Windows Vista

System Name	Dell XPS 15 9560
Processor	I7-7700HQ
Memory	32GB DDR4
Video Card(s)	GTX 1050/1080 Ti
Storage	1TB SSD
Display(s)	2x Dell P2715Q/4k Internal
Case	Razer Core
Audio Device(s)	Creative E5/Objective 2 Amp/Senn HD650
Mouse	Logitech Proteus Core
Keyboard	Logitech G910

Memory Argument with Windows/Mac

Fox34

Grings

Wile E

Power User

Fox34

Deleted member 3

Dippyskoodlez

Steevo

Dippyskoodlez

Wile E

Power User

System Name	Compy 386
Processor	7800X3D
Motherboard	Asus
Cooling	Air for now.....
Memory	64 GB DDR5 6400Mhz
Video Card(s)	7900XTX 310 Merc
Storage	Samsung 990 2TB, 2 SP 2TB SSDs and over 10TB spinning
Display(s)	56" Samsung 4K HDR
Audio Device(s)	ATI HDMI
Mouse	Logitech MX518
Keyboard	Razer
Software	A lot.
Benchmark Scores	Its fast. Enough.