benplace Posted February 3, 2007 Share Posted February 3, 2007 I have 4Gig of RAM and a 680i mobo, when I look in system properties in Vista it says I have 2814MB. In the BIOS is sees my full 4 Gig. Any ideas? Link to comment https://www.neowin.net/forum/topic/535694-vista-not-seeing-all-of-my-ram/ Share on other sites More sharing options...
ccuk Posted February 3, 2007 Share Posted February 3, 2007 What kind make of RAM have you got? Link to comment https://www.neowin.net/forum/topic/535694-vista-not-seeing-all-of-my-ram/#findComment-588288125 Share on other sites More sharing options...
benplace Posted February 3, 2007 Author Share Posted February 3, 2007 I have 2 sets of this http://www.ec.kingston.com/ecom/configurat...mp;promo=hx2shp Link to comment https://www.neowin.net/forum/topic/535694-vista-not-seeing-all-of-my-ram/#findComment-588288128 Share on other sites More sharing options...
Vice Posted February 3, 2007 Share Posted February 3, 2007 Which version of Vista are you running? and make sure your using the P24 BIOS. Link to comment https://www.neowin.net/forum/topic/535694-vista-not-seeing-all-of-my-ram/#findComment-588288130 Share on other sites More sharing options...
Scorpio9a Posted February 3, 2007 Share Posted February 3, 2007 I am sure you are using Windows Vista x86, this is known not to work. Because of the 4GB memory limit, and DMA/PCI usually takes up about 1-1.5GB of the address space. Install x64 to be able to use all your RAM. Link to comment https://www.neowin.net/forum/topic/535694-vista-not-seeing-all-of-my-ram/#findComment-588288132 Share on other sites More sharing options...
Lasker Posted February 3, 2007 Share Posted February 3, 2007 I am sure you are using Windows Vista x86, this is known not to work. Because of the 4GB memory limit, and DMA/PCI usually takes up about 1-1.5GB of the address space. Install x64 to be able to use all your RAM. I hearded about it and yes is true, if you have more than 3GB you need the X64 version Link to comment https://www.neowin.net/forum/topic/535694-vista-not-seeing-all-of-my-ram/#findComment-588288139 Share on other sites More sharing options...
benplace Posted February 3, 2007 Author Share Posted February 3, 2007 Can I upgrade my 32bit to 64 without having to reload everything? Link to comment https://www.neowin.net/forum/topic/535694-vista-not-seeing-all-of-my-ram/#findComment-588288143 Share on other sites More sharing options...
Lasker Posted February 3, 2007 Share Posted February 3, 2007 Can I upgrade my 32bit to 64 without having to reload everything? sorry but you need to do a clean installation :rolleyes: Link to comment https://www.neowin.net/forum/topic/535694-vista-not-seeing-all-of-my-ram/#findComment-588288145 Share on other sites More sharing options...
benplace Posted February 3, 2007 Author Share Posted February 3, 2007 Crapola. Thanks for the help, looks like Im gonna spend my day re installing. lol One more thing. I do not have to format my system volume for this right? I can keep all my data and just do a clean install. Right? Please? lol Link to comment https://www.neowin.net/forum/topic/535694-vista-not-seeing-all-of-my-ram/#findComment-588288148 Share on other sites More sharing options...
Lasker Posted February 3, 2007 Share Posted February 3, 2007 Crapola. Thanks for the help, looks like Im gonna spend my day re installing. lolOne more thing. I do not have to format my system volume for this right? I can keep all my data and just do a clean install. Right? Please? lol When I say a clean installation means you need to reformat your HD, because X64 and the 32bit processors are not compatible to each other, basically they hate each other :rofl: Link to comment https://www.neowin.net/forum/topic/535694-vista-not-seeing-all-of-my-ram/#findComment-588288160 Share on other sites More sharing options...
benplace Posted February 3, 2007 Author Share Posted February 3, 2007 Why do I have to format my drive? I have a 750G drive with 250gig free. I dont have anywhere to copy all that data. I googled and the XP 64bit install did not require a reformat. Link to comment https://www.neowin.net/forum/topic/535694-vista-not-seeing-all-of-my-ram/#findComment-588288176 Share on other sites More sharing options...
+Fahim S. MVC Posted February 3, 2007 MVC Share Posted February 3, 2007 There is something else up, you don't need x64. As I wrote in another thread: It seems to be a common misconception that Vista 32 bit editions won't work with more than 4Gb RAM, and that's just plain lies.Home Basic will support up to 8Gb, Home premium will support up to 16Gb, other versions above that will support as much as you can fit on your motherboard - which for most of us isn't even 8Gb, but that's another matter altogether. See here http://www.winsupersite.com/showcase/winvista_editions.asp Link to comment https://www.neowin.net/forum/topic/535694-vista-not-seeing-all-of-my-ram/#findComment-588288185 Share on other sites More sharing options...
jimbo12141 Posted February 3, 2007 Share Posted February 3, 2007 Why do I have to format my drive? I have a 750G drive with 250gig free. I dont have anywhere to copy all that data.I googled and the XP 64bit install did not require a reformat. Use partitioning software to create different partitions. Also, if your going to use X64, makesure you have all the compatible drivers and of course a 64bit processor.. .:p Link to comment https://www.neowin.net/forum/topic/535694-vista-not-seeing-all-of-my-ram/#findComment-588288192 Share on other sites More sharing options...
benplace Posted February 3, 2007 Author Share Posted February 3, 2007 OK, then how do I get my x86 install to see all of my memory ? I have the Intel QX6700 processor, it does support 64bit. Im not against partitioning but I hate to install 64 bit in a partition and then get everything working good, and be stuck with multiple partitions, and having my main OS on a second partition, and not the primary. Does that make sense? Link to comment https://www.neowin.net/forum/topic/535694-vista-not-seeing-all-of-my-ram/#findComment-588288194 Share on other sites More sharing options...
benplace Posted February 3, 2007 Author Share Posted February 3, 2007 Anyone? Link to comment https://www.neowin.net/forum/topic/535694-vista-not-seeing-all-of-my-ram/#findComment-588288224 Share on other sites More sharing options...
ccuk Posted February 3, 2007 Share Posted February 3, 2007 It could be an issue with your RAM modules and the 680i board... which BIOS version have flashed on your board? Link to comment https://www.neowin.net/forum/topic/535694-vista-not-seeing-all-of-my-ram/#findComment-588288236 Share on other sites More sharing options...
benplace Posted February 3, 2007 Author Share Posted February 3, 2007 The BIOS reports the full 4gig. Ill have to reboot to check my bios, downloading Vista 64 from MSDN at the moment. Link to comment https://www.neowin.net/forum/topic/535694-vista-not-seeing-all-of-my-ram/#findComment-588288240 Share on other sites More sharing options...
ccuk Posted February 3, 2007 Share Posted February 3, 2007 Windows has to talk to the bios and motherboard... The BIOS can make or break features in windows... this can STILL be a problem. Link to comment https://www.neowin.net/forum/topic/535694-vista-not-seeing-all-of-my-ram/#findComment-588288264 Share on other sites More sharing options...
benplace Posted February 3, 2007 Author Share Posted February 3, 2007 I had the P23 version, updating BIOS to p24, Ill let you know how it goes. Link to comment https://www.neowin.net/forum/topic/535694-vista-not-seeing-all-of-my-ram/#findComment-588288292 Share on other sites More sharing options...
benplace Posted February 3, 2007 Author Share Posted February 3, 2007 Flashed to P24, still not seeing my RAM. Guess Im off to 64bit land. Gonna install in a partition first, and if I get it all working right, Ill probably reload it to my primary partition. Thanks for everyones help. Link to comment https://www.neowin.net/forum/topic/535694-vista-not-seeing-all-of-my-ram/#findComment-588288310 Share on other sites More sharing options...
benplace Posted February 3, 2007 Author Share Posted February 3, 2007 Loaded 64 bit and it sees all my ram, but no driver for my hauppauge pvr. looks like im stuck til a driver comes out Link to comment https://www.neowin.net/forum/topic/535694-vista-not-seeing-all-of-my-ram/#findComment-588289013 Share on other sites More sharing options...
Brandon Live Veteran Posted February 3, 2007 Veteran Share Posted February 3, 2007 You do NOT need to reformat to install x64. You do need to do a clean install, but that does NOT require a reformat. You DO need x64 to use 4GB of RAM. A 32-bit system is limited to 4GB of address space. However, your BIOS will reserve large amounts of address space (usually 1 to 2GB) for other things besides RAM. For instance, your entire video memory on a PCI-Express system gets mapped to the address table, so you can subtract however much video memory you have from your available address space. With a 64-bit CPU, 64-bit OS, and a motherboard that is capable of supporting more than 4GB of memory (as yours apparently does - not all 64-bit mobos do), then you will be able to use all 4GB and still have plenty of address space left for other things. Loaded 64 bit and it sees all my ram, but no driver for my hauppauge pvr. looks like im stuck til a driver comes out Which PVR? Most of them have 64-bit drivers, have you looked here? http://www.hauppauge.com/pages/support/vista.html Also - this same thing would happen under any 32-bit OS. Most OSes will just tell you how much RAM is installed according to the BIOS, not how much is actually useable to the system (mapped to memory addresses). Link to comment https://www.neowin.net/forum/topic/535694-vista-not-seeing-all-of-my-ram/#findComment-588289041 Share on other sites More sharing options...
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