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Posted: Fri Feb 26, 2010 10:14 am
by DaddyHoggy
Cmd. Cheyd wrote:To delve into on what DH said-
ANY 32-bit OS (XP, Vista, Linux, Mac, you name it) has 4294967296 (2^32) addresses it can allocate to memory. BUT, your other hardware has to also have addresses, so that max amount is lowered by the amount needed by the other hardware components. This address space doesn't reduce the amount of ram on the system but it does reduce the number of addresses the CPU can allocate to memory. This is why some folks can address 2.8GB, others 3.3GB, and someone else 3.8GB.
And just to answer for whoever is about to ask - 64-bit OS's can address 16.8 million terabytes.
Yeh, we tried one of our 4GB machines with 2 SLI'd 1GB GTX285s running under XP32 -hmmmmm.....
Posted: Fri Feb 26, 2010 10:16 am
by allikat
DaddyHoggy wrote:Yeh, we tried one of our 4GB machines with 2 SLI'd 1GB GTX285s running under XP32 -hmmmmm.....
Way to go transform 2GB of memory into an energy wasting paper-weight
Posted: Fri Feb 26, 2010 10:35 am
by DaddyHoggy
allikat wrote:DaddyHoggy wrote:Yeh, we tried one of our 4GB machines with 2 SLI'd 1GB GTX285s running under XP32 -hmmmmm.....
Way to go transform 2GB of memory into an energy wasting paper-weight
We needed to do it justify the upgrade to Windows 7 - it didn't take long!
Posted: Fri Feb 26, 2010 12:49 pm
by Diziet Sma
DH.. you forgot the most important bit.. after you got Win7 and plugged in those 2 GTX285s, how well does it run Oolite?
Posted: Fri Feb 26, 2010 3:11 pm
by DaddyHoggy
Diziet Sma wrote:DH.. you forgot the most important bit.. after you got Win7 and plugged in those 2 GTX285s, how well does it run Oolite?
It doesn't seem to make any difference - I presume OpenGL/Oolite isn't natively capable of making the most of the SLI?
Elsewhere in this forum you will have already seen a single GTX285 running Oolite via a Matrox Triple Head 2 Go - that was very nice indeed.