spw11 Posted December 23, 2007 Share Posted December 23, 2007 First post here... Hello all and happy holidaze... Current sys about 4 yrs old... ASUS P4C-800E Deluxe mobo P4 3.2 ghz processor (2@512mb) Corsair Twinx1024-3200C2 Into digital photography now, using LightRoom and Photoshop CS3 and need to upgrade memory. No over clocking or jacking with the sys at all... Stability and reliability is what I'm after. Getting conflicting stories about Windows XP use of memory vs PS CS3 use of memory. 1) XP can only utilize 2gb, but PS CS3 can use more? Anyone here know anything about this? 2) If I wanted to keep using the memory I have and add 2 gb what Corsair model should it be? 3) If I wanted to just buy 4 gb of new "Matched" Corsair memory the configurator gives me plenty of options... Anyone know what might work better for my aplication? (MIGHT do a little bit of gamming too... The new Call of Duty 4 looks pretty sweet.) 4) Am I wasting $$$ putting any more in than 2gb considering any inherent limitations in XP? Thank you very much for the help! S Link to comment Share on other sites More sharing options...
bigbuck08 Posted December 24, 2007 Share Posted December 24, 2007 1.) Its not XP it is the limitation of the 32 Bit architecture. 2.) You could try doing it but most likely it would only cause problems as is the case when mixing and matching RAM. 3.) The Asus website is down so I cannot check the MB specs. Is PC3200 the highest RAM speed it supports? 4.) If you plan on runnng a 32 Bit OS, then yes it wouldnt be worth running more than 2GB in dual channel. Link to comment Share on other sites More sharing options...
spw11 Posted December 24, 2007 Author Share Posted December 24, 2007 Thanks bigbuck08! Looks as though PC3200 is it. Off the ASUS spec sheet... Memory -Dual Channel Memory Architecture -4 x 184-pin DIMM Sockets support max. 4GB PC3200/PC2700/PC2100 ECC/ Non-ECC DDR SDRAM memory -Intel Performance Acceleration Technology I don't plan on changing the OS any time soon. Top 4 Corsair recomendations for this mobo... TWINX2048-3200C2PT DDR-400 (XMS-3200C2) 2GB Kit (2 x 1GB) 2-3-3-6-2T TWINX2048-3200PT DDR-400 (PC-3200) 2GB Kit (2 x 1GB) 3-3-3-8-2T TWINXP2048-3200C2 DDR-400 (PC-3200) 2GB Kit (2 x 1GB) 3-3-3-8-2T VS1GBKIT333 DDR-333 (PC-2700) 2GB Kit (2 x 1GB) 2.5-3-3-7-2T VS2GBKIT400C3 DDR-400 (PC-3200) 2GB Kit (2 x 1GB) 3-3-3-8-2T Link to comment Share on other sites More sharing options...
bigbuck08 Posted December 24, 2007 Share Posted December 24, 2007 I would recommend this then TWINX2048-3200C2PT. It is the fastest out of the ones you listed. $100 aint that bad either. Link to comment Share on other sites More sharing options...
spw11 Posted December 24, 2007 Author Share Posted December 24, 2007 Thank you once again! I suspect if I were running 2gig as opposed to 1 I'd be in great shape. A question.... I found this in an Adobe Tech Note for Photoshop... "Photoshop CS3 is a 32-bit application. When it runs on a 32-bit operating system, such as Windows XP Professional and some versions of Windows Vista, it can access the first 2 GB of RAM on the computer.The operating system uses some of this RAM, so the Photoshop Memory Usage preference displays only a maximum of 1.6 or 1.7 GB of total available RAM. If you are running Windows XP Professional with Service Pack 2, you can set the 3 GB switch in the boot.ini file, which allows Photoshop to use up to 3 GB of RAM." If I'm reading this right then if I were running XP Pro it sounds like there would be an advantage to putting 4gb in.? What am I missing here? Link to comment Share on other sites More sharing options...
bigbuck08 Posted December 24, 2007 Share Posted December 24, 2007 Since it is 32 Bit it will only see 3GB and I think it also takes it out of dual channel. Programs like Photoshop like using a lot of RAM but youd still need a 64 Bit OS to use all 4GB. Most likely you wouldnt notice a difference even if Photoshop was using the 3GB. Link to comment Share on other sites More sharing options...
RJLeong65 Posted December 24, 2007 Share Posted December 24, 2007 Since it is 32 Bit it will only see 3GB and I think it also takes it out of dual channel. Programs like Photoshop like using a lot of RAM but youd still need a 64 Bit OS to use all 4GB. Most likely you wouldnt notice a difference even if Photoshop was using the 3GB. Moreover, the P4C-800E Deluxe motherboard is a Socket 478 motherboard. And Intel has never made a CPU with its EM64T extensions for Socket 478; thus, all Socket 478 processors ever made are 32-bit-only CPUs. Thus, you will not be able to run any 64-bit version of Windows (which requires a 64-bit CPU just to even run). Link to comment Share on other sites More sharing options...
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