Memory Argument with Windows/Mac

Fox34 · 01-20-2007, 08:33 AM

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 · 01-20-2007, 09:01 AM

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 · 01-20-2007, 09:09 AM

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 · 01-20-2007, 09:24 AM

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

DanTheBanjoman · 01-20-2007, 10:54 AM

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 · 01-20-2007, 04:11 PM

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 · 01-20-2007, 04:35 PM

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...AE/PAEdrv.mspx

Dippyskoodlez · 01-20-2007, 09:42 PM

Quote:

Originally Posted by Steevo

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...AE/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 · 01-22-2007, 08:22 AM

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

01-20-2007, 08:33 AM	#1
Fox34 Join Date: May 2006 Location: Venice Posts: 1,438 (1.11/day) Thanks: 72 Thanked 98 Times in 55 Posts System Specs	Memory Argument with Windows/Mac 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. __________________ Coffee on the Foot! 3DMark05: 13323 \| 3DMark06: 8889\| Super PI [1M]: 30s \| AquaMark3: 110201 \| CPU-Z New to case modding? Check out my guide! How to enable SLI/Configure graphics on Linux: My Guide

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: 3 80mm Intake 2front 1top \| 2 80mm Exhaust \| Thermaltake blue orbII \| N.Bridge \| Vidcard stock\|
Memory:	2GIG, 4x512 Kingston Hyper-X DDR333 PC 2700@167Mhz \|2-2-2-5\|-7-1T-8(CPU-Z) Dual channel
Video Card:	2 PNY Verto 8600GT'S in SLI, 670MHz/540MHz(Core)800MHz/700MHz
Harddisk:	320 Gig Western digital SATA
CD/DVD Drive:	Lightscribe DVD-RW/CD-RW
CRT/LCD Model:	Sony 17" LCD 1280x1024 @ 75Htz
Case:	Thermaltake XaserIII Blue, 3 Cathodes, 3 Blue\| http://www.techpowerup.com/gallery/752
Sound Card:	Creative Sound blaster Audigy 2 ZS
PSU:	520 Watt Aspire Dual rail +12#1 16 amps +12#2 18 amps(I think)
Software:	Fedora Core 8, XP Pro

System Name:	This Computer / That Computer
Processor:	Core2 8400@4.2/ Core2 4400@3.4(340x10)
Motherboard:	MSI P35 Neo2fr / Asus P5N-E SLI
Cooling:	Swiftech &Thermochill Water/ Scythe Infinity
Memory:	4gb Kingston pc8500 / 4gb G.Skill 'pi' pc7200cl4
Video Card:	EVGA 260GTX ssc 55nm / Powercolor HD3870
Harddisk:	750gb,500gb Samsung sata / 2x250gb Samsung sata
CD/DVD Drive:	Pioneer 22x dvdrw / nec18x dvdrw
CRT/LCD Model:	Samsung SM2253BW / Samsung 931BW
Case:	CM690 / CM534
Sound Card:	M/B crap (on P35) Auzen X-Plosion (on P5N)
PSU:	Corsair HX520w / Enermax Pro82+ 525w
Software:	Win7rc / Vista Premium 64 / XP pro (both)

01-20-2007, 09:09 AM	#3
Wile E Power User Join Date: Oct 2006 Location: Western PA (Pittsburgh suburbs) Posts: 13,767 (11.99/day) Thanks: 257 Thanked 2,275 Times in 1,973 Posts System Specs	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. __________________ Visit Ashentech Visit TechFuzion “What the hell did you expect? Leave Vista under the pillow and the OS fairy would make it Win7?” -El Fiendo “And Bring Mailman back god damnit, he is the Eric Cartman of TPU” -MRCL

System Name:	The ClusterF**k
Processor:	QX9650 @ 4Ghz (40010) 1.375V; 4455MHz (40511) benching
Motherboard:	Asus Maximus Formula flashed to Rampage BIOS
Cooling:	2x360mm rad, 2xDDC-1 pump w/Bitspower res top (1/2" fittings), DTek Fuzion, MCW60, DD-4870-X2
Memory:	2x2GB G.Skill Pi @ 1000Mhz 4-4-4-12 2.1V
Video Card:	4870X2; 8800GT 1GB (for folding, Physx and CUDA)
Harddisk:	Seagate 7200.10 320GB x2 RAID0; 2 x Samsung F2 1.5TB no raid; 1 Samsung F1 1TB
CD/DVD Drive:	LG GH22NS50
CRT/LCD Model:	Westinghouse L2410NM 24" 1920x1200
Case:	CM Stacker 830 Evo (well, the mobo tray anyway)
Sound Card:	Soundblaster Audigy2 ZS
PSU:	Antec True Power Quattro 1000W
Software:	Win7 Pro x64; XP Pro

01-20-2007, 09:01 AM	#2
Grings Join Date: Nov 2006 Location: Blighty Posts: 1,806 (1.64/day) Thanks: 63 Thanked 143 Times in 132 Posts System Specs	32bit has a limitation of 4 gig max, though people have found windows unstable with this vista and 64 bit processors can handle more

01-20-2007, 09:24 AM	#4
Fox34 Join Date: May 2006 Location: Venice Posts: 1,438 (1.11/day) Thanks: 72 Thanked 98 Times in 55 Posts System Specs	Thanks for the reply's that basically ended the fight down here at the LAN party __________________ Coffee on the Foot! 3DMark05: 13323 \| 3DMark06: 8889\| Super PI [1M]: 30s \| AquaMark3: 110201 \| CPU-Z New to case modding? Check out my guide! How to enable SLI/Configure graphics on Linux: My Guide

01-20-2007, 10:54 AM	#5
DanTheBanjoman Señor Moderator Join Date: May 2004 Location: Utrecht, Utrecht, The kingdom of the Netherlands Posts: 7,133 (3.54/day) Thanks: 24 Thanked 978 Times in 757 Posts System Specs	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

Processor:	Dual Xeon 5506
Motherboard:	Asus Z8NA-D6
Cooling:	2x Thermalright HR-01 X/passive
Memory:	6GB Corsair something
Video Card:	EVGA GTX 260 Core 216
Harddisk:	2x OCZ 30GB SSD RAID 0
CD/DVD Drive:	None
CRT/LCD Model:	22" WS
Case:	Thermaltake Swing
Sound Card:	Onboard
PSU:	620W CM
Software:	Win2k8

01-20-2007, 04:11 PM	#6
Dippyskoodlez Moderator™ Join Date: Jul 2005 Location: Ohio Posts: 4,052 (2.52/day) Thanks: 12 Thanked 186 Times in 157 Posts System Specs	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. __________________ This post brought to you by physics: Holding the power to bring down your GPA one class at a time.

Processor:	AMD Athlon 64 3700+@ 3Ghz
Motherboard:	DFI Lan Party UT 939
Cooling:	Thermalright XP-90C
Memory:	2x 1Gb OCZ Platinum
Video Card:	Radeon X850XT
Harddisk:	250Gb Barracuda
CD/DVD Drive:	Lite-On DVDRW
CRT/LCD Model:	20" Samsung 204B
Case:	Lian-Li PC7A
PSU:	PC Power and Cooling 610w Silencer
Software:	Everything+1

01-20-2007, 04:35 PM	#7
Steevo Join Date: Nov 2005 Posts: 3,205 (2.17/day) Thanks: 84 Thanked 369 Times in 315 Posts System Specs	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...AE/PAEdrv.mspx __________________ If I wanted your thanks I would have asked for it, asshole. “it would have been perfect....its got trains and the line"tech your kids not to do what iv done"(or similar) because i had obviously done something to warrent 2 e-thugs to come 4000miles out of their way and kill me.” -Solaris17 “yeah i failed. i noticed the "coming soon" part after i posted.” -Mussels

System Name:	MoFo
Processor:	AMD PhenomII 940 @ 3.9Ghz 1.5vcore BIOS
Motherboard:	Asus M3A32-MVP Deluxe 1406 BIOS
Cooling:	Swiftec 655 pump, Apogee GT, MCW60-R GPU, MCR360mm Rad, 1/2 loop.
Memory:	OCZ 4Gb Reaper 1066 5.5.5.15 2T @ 1157 5.5.5.15 2T
Video Card:	HD4850 755/1153 1Gb custom BIOS w/ pencil mod
Harddisk:	750Gb Seagate SATA Barracuda
CD/DVD Drive:	Lite-On DL DVD
CRT/LCD Model:	Asus 1920X1200 60Hz 25.5" LCD
Case:	Rosewill R6A34-BK modded (thanks to MKmods)
Sound Card:	On Board
PSU:	750W PC Power & Cooling modded (thanks to MKmods)
Software:	Vista X64 Ultimate/Win 7 Ultimate

01-22-2007, 08:22 AM	#9
Wile E Power User Join Date: Oct 2006 Location: Western PA (Pittsburgh suburbs) Posts: 13,767 (11.99/day) Thanks: 257 Thanked 2,275 Times in 1,973 Posts System Specs	MacPros are supposed to support more than 4GB as well. I haven't seen it myself to confirm, however. __________________ Visit Ashentech Visit TechFuzion “What the hell did you expect? Leave Vista under the pillow and the OS fairy would make it Win7?” -El Fiendo “And Bring Mailman back god damnit, he is the Eric Cartman of TPU” -MRCL

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)