upgraded to 4 gigs of ram and combustion only sees 2 gigs
by Cyberdyne
on
Jul 14, 2005 at 9:33:29 pm
hey all... long time viewer, first time poster..
i recently upgraded my g5 to have 4 gigs of ram, for the sole purpose to make combustion kick even more @$$, and when i booted up C3, it says that i only have 1.75 gigs of ram.
my system profiller says i have 4 gigs, and even my widget says i have 4 gigs. but combustion won't register anything over the initial 2 gigs that i've been working with for the past year.
is there any trick that i need to do with combustion to make it recognise that i have more power for it to consume? do i have to re-install C3? is there a check box i'm missing?
Re: upgraded to 4 gigs of ram and combustion only sees 2 gigs by Rayk Hemmerling on Jul 14, 2005 at 11:34:53 pm
quick answer: nothing you can do with c3.
c4.0.1 for win has the patch, so it will recognize the 3gb switch for win os.
this 2gb limit is somwhat connected to the 4gb limit of ALL 32bit os.
win os will usually part the 4gb address room in two 2gb parts, one for the os itself and the other one for applications. the 3gb switch set the os so it will use only 1gb, leaving 3gb for applications.that's my light hearted look at it.
Re: upgraded to 4 gigs of ram and combustion only sees 2 gigs by Cyberdyne on Jul 15, 2005 at 2:23:04 am
BLAST!!!!! so your telling me that c3 can only handle 2 gigs of ram?!?! what the point of having a G5 that can go 8 gigs, if my main app can only go 2?
but c4 can atleast go further then 2 gigs?
and i guess my new question is this then... how do i make my preview particles render faster... such as while i'm editing the values, i don't ahve to wait 2 minutes for an update of what fire looks like on medium resolution. better video card? i'm running th g5 stock, wich is an Nvida 64 megg.... i really like the 9800 that can run the dual 30"... that thing is sexy.
Re: upgraded to 4 gigs of ram and combustion only sees 2 gigs by Keith Hill on Jul 15, 2005 at 3:26:21 am
Apple and ATI have begun to subtly reveal the new x850 RT card in the web info pages
(see: http://www.apple.com/powermac/graphics.html ) but nothing is on the ATi site yet.
Right now, I'm using Motion2 for grunt work and moving stuff into C 3.0,4 and it's working out pretty nicely. I'm trying to hold out until the x850 card and thenstart increasing my RAM. You just revealed something that I thought would be happening.
Keith Hill
http://www.LightedPath.biz
Dallas, TX
Final Cut Pro 5.0.2, Combustion (MAC-v3.0.4), DVD StudioPro 4 (v 3.0.2); MAC G5 (v10.4.2-Tiger) 2Ghz, 1.5 RAM
Re: upgraded to 4 gigs of ram and combustion only sees 2 gigs by Cyberdyne on Jul 15, 2005 at 4:45:47 pm
ok.... last question for this thread.... since i have an extra 2 gigs that are not being used, in the preferences, can i set the cashe to be 100%, rather then the 87% that it is at? it gives me a warning saying not to go past 87% due to system resources, but if i've got the extra 2, wouldnt OSX and other apps run from that, and leave combustion free to eat up the other 2 gigs?
Re: upgraded to 4 gigs of ram and combustion only sees 2 gigs by Rayk Hemmerling on Jul 15, 2005 at 5:04:47 pm
as reported in several threads here, the limit for combustion prior to win version 4.0.1 is around 1.75 gb.
don't get mad at me, i'm just the messenger. :-)
as a side note, i'm not aware of any tiger osx program which is not bound to the 4gb limit of 32 bit adress space. note: apple says tiger is 64bit, but if the program has a ui, it is 32 bit. -i've heard.
Re: upgraded to 4 gigs of ram and combustion only sees 2 gigs by Eric Craft on Jul 15, 2005 at 7:19:09 pm
Rayk that is correct Tiger only supports commandline applications in 64bit. If the program is coded with a GUI as part of the application it will only run in 32bit mode on Tiger. However, you can write a commandline app that connects to a 32bit GUI for the UI, according to the Apple documentation:
As mentioned earlier, the use of a 64-bit address space is limited to non-GUI applications in Tiger. This doesn't mean, however, that the results of a 64-bit enabled computation can't be displayed on the screen. The strategy that you should use is to create two separate executables that are cooperative. These are:
* A 32-bit based Cocoa or Carbon GUI executable that the user can launch and which presents the application's user-interface.
* A 64-bit based command-line tool that is launched by, and under the control of, the GUI.
Re: upgraded to 4 gigs of ram and combustion only sees 2 gigs by gary m. davis on Jul 16, 2005 at 5:01:52 am
if you have 4 gigs, by all means set combution prefs to 100%.
re: particles. the memory on the video card determines the amount of particles you can draw to the screen at any given time. the quality of the card's gpu determines how fast it can do it. 64 megs is not that much anymore, really.
//gD
gary m. davis // visualz.com
application training specialist
3ds Max | Combustion | Toxik
"don't key DV!"
Re: upgraded to 4 gigs of ram and combustion only sees 2 gigs by guuuug on Aug 1, 2005 at 6:52:06 pm
Hi,
Next to my workstation I have to backburner servers running. The limitation in the amount of particles due to my gpu hardware, could this give me any trouble when rendering on the servers? The server are made of spare parts and don't have any fancy graphics card (don't even have a monitor). My workstation is a laptop with a 64mb ram memory.
