| Forum Home | ||||
| Press F1 | ||||
| Thread ID: 91341 | 2008-07-03 19:26:00 | Ram Query | JJJJJ (528) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 684974 | 2008-07-03 19:26:00 | I have 4 gigs of DDR3 1600 ram installed. I am running xp pro. The four sticks are recognised., but system properties tells me 1 have only 2.75 gigs. I have been told by one professional serviceman that XP will only recognise a total of 3.75 gigs, including ALL memory on a computer. Because I have one gig on my GPU, only 2.75 will be used by system. Another professional says this is bull****. He says I have something shadowed and that is where the other gig has gone. Which one is correct? If it is number one then if I install a second vid card in SLI will I only have 1.75 gigs of system ram available? If number two is correct, how do I find out what is shadowed and how do I unshadow it? I'm confused. I was expecting to have 3.75 gigs of system ram. |
JJJJJ (528) | ||
| 684975 | 2008-07-03 20:12:00 | While running a 32 bit operating system only a certain amount of RAM will be usable. This is system RAM and in my believe does not include RAM on the video card unless this is on board. If you run XP 64 or Vista 64 then all RAM should come up in properties. I have not shadowed RAM for ages back in the days when I used DOS. No doubt a person here will give you some advice but this is the way I see it. I do have 4 Gig RAM and both 64 bit operating systems show 4 Gig. |
Sweep (90) | ||
| 684976 | 2008-07-03 21:06:00 | You will never see more than 3.5GB on a 32bit Windows XP system. Unless Microsoft decide to patch the way 32bit XP uses system RAM like they did for 32bit Server 2003 when they released SP1 for it. Have a look in the BIOS for Memory Hole Remapping or something similar and enable it. This should hopefully allow you to see 3.5GB but may not if, as you say, you have a 1GB video card. |
CYaBro (73) | ||
| 684977 | 2008-07-03 21:45:00 | Or you could spend a little bit more and get a 64bit OS. I've got Vista Home Premium x64, and really couldn't be happier. |
Thebananamonkey (7741) | ||
| 684978 | 2008-07-03 22:28:00 | You will never see more than 3.5GB on a 32bit Windows XP system. Unless Microsoft decide to patch the way 32bit XP uses system RAM like they did for 32bit Server 2003 when they released SP1 for it. Have a look in the BIOS for Memory Hole Remapping or something similar and enable it. This should hopefully allow you to see 3.5GB but may not if, as you say, you have a 1GB video card. So if you had 4gb + a 32mb graphics card, you would still only see 3.5gb, instead of 4064mb? |
utopian201 (6245) | ||
| 684979 | 2008-07-03 23:34:00 | So if you had 4gb + a 32mb graphics card, you would still only see 3.5gb, instead of 4064mb? Bang on. And if you have 2x 9800GX2's then you'd see 1.5GBRAM and 2GB GFXRAM, regardless of how much you have sitting in your mobo. |
Thebananamonkey (7741) | ||
| 684980 | 2008-07-04 09:20:00 | Due to an architectural decision made long ago, if you have 4GB of physical RAM installed, Windows is only able to report a portion of the physical 4GB of RAM (ranges from ~2.75GB to 3.5GB depending on the devices installed, motherboard's chipset & BIOS). Although I never thought GPU ram was included, this makes it sound like it is...but be warned this was just from a blog, not some credible source. |
Faded_Mantis (79) | ||
| 684981 | 2008-07-04 10:04:00 | Although I never thought GPU ram was included, this makes it sound like it is...but be warned this was just from a blog, not some credible source. Thanks, i think it might be right. Anyway I have a gig in each slot that is recognised,and my ram useage doesn't get over 70%. It doesn't look like I can improve this. But I won't be buying a second video card. |
JJJJJ (528) | ||
| 1 | |||||