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Hardware and Windows Vista Hardware issues in relation to Windows Vista. (microsoft.public.windows.vista.hardware_devices) |
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dxdiag reporting 3G RAM instead of 4G
bought a new laptop and it came along with 1X2G of ram from the manufacturer-upgraded it to 2X2G at the store.my system report and bios shows me the correct number,though dxdiag only 3G.the question is-which report should i trust??:sarc: +-------------------------------------------------------------------+ |Filename: dxdiag.jpg | |Download: http://www.vistax64.com/attachment.p...achmentid=8029 | +-------------------------------------------------------------------+ -- us3r |
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dxdiag reporting 3G RAM instead of 4G
Hi Us3r, and welcome to the Vista forums arty: Looks like you are subject to the Vista's confusion over memory as related here ... 'Windows Vista SP1 includes reporting of Installed System Memory (RAM)' (http://support.microsoft.com/default.aspx/kb/946003) So basically all your RAM is there Hope this helps -- barman58 |
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dxdiag reporting 3G RAM instead of 4G
Hi,
Dxdiag is showing the usable memory addresses. If you're running a 32-bit installation of Vista, it can only address up to roughly ~3.2GB of memory. The exact amount depends on the number of addresses reserved for addressing the hardware, it can be as small as 2.7GB on some installations. -- Best of Luck, Rick Rogers, aka "Nutcase" - Microsoft MVP http://mvp.support.microsoft.com/ Windows help - www.rickrogers.org My thoughts http://rick-mvp.blogspot.com "us3r" wrote in message ... bought a new laptop and it came along with 1X2G of ram from the manufacturer-upgraded it to 2X2G at the store.my system report and bios shows me the correct number,though dxdiag only 3G.the question is-which report should i trust??:sarc: +-------------------------------------------------------------------+ |Filename: dxdiag.jpg | |Download: http://www.vistax64.com/attachment.p...achmentid=8029 | +-------------------------------------------------------------------+ -- us3r |
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dxdiag reporting 3G RAM instead of 4G
barman58;892515 Wrote: So basically all your RAM is there im sure it is.. but,will it really be using ALL of my RAM for games or progz like photoshop illustrator or 3dmax? i noticed this at the link u provided " For Windows Vista to use all 4 GB of memory on a computer that has 4 GB of memory installed, the computer must meet the following requirements: - The chipset must support at least 8 GB of address space. Chipsets that have this capability include the following: - Intel 975X - Intel P965 - Intel 955X on Socket 775 - Chipsets that support AMD processors that use socket F, socket 940, socket 939, or socket AM2. These chipsets include any AMD socket and CPU combination in which the memory controller resides in the CPU. " - my chipset is based on *Mobile Intel PM45 Express* but it claims to be compatible "up to 4G of RAM" im confused -- us3r |
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dxdiag reporting 3G RAM instead of 4G
Is the onboard video using shared ram?
If it is, this will also decrease the amount of ram shown in botht the system properties and dxdiag. -- David Vair CNE, CNA, MCP, A+, N+ "us3r" wrote in message ... bought a new laptop and it came along with 1X2G of ram from the manufacturer-upgraded it to 2X2G at the store.my system report and bios shows me the correct number,though dxdiag only 3G.the question is-which report should i trust??:sarc: +-------------------------------------------------------------------+ |Filename: dxdiag.jpg | |Download: http://www.vistax64.com/attachment.p...achmentid=8029 | +-------------------------------------------------------------------+ -- us3r |
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dxdiag reporting 3G RAM instead of 4G
Hi Us3r, Don't worry about being confused - you are not alone when it comes to memory management . Will try to explain the best I can - It all relates to something called Address Space this is an area where the system keeps track of what each part of the actual memory you have is used for so that the processor can find the correct data when needed. This is known as mapping A 32 bit system has by design a maximum of 4 Gigabyte of -address space- where the actual RAM is -mapped -to so that the Maximum that a 32 bit system can use is 4 Gigabyte This Address space is however not used to map only RAM but also things such as hardware locations and graphics memory. Because of this the most RAM that may be mapped and thus used will be the 4 Gigabyte minus the amount used for things other than RAM. This amount varies depending on what hardware devices you have and so the actual amount of RAM available will vary between 2.9 Gigabyte and 3.5 gigabyte (approx) Although your motherboard may be capable of addressing more than 4 gigabyte the operating system cannot. If you want to access more than this amount of RAM you will have to run a 64 bit OS The confusion is caused by manufacturers quoting that their boards can use 8 gigabyte but not mentioning that to do this you need 64 bit :sarc::sa: If you want further info check out these... '64-bit: More than just the RAM - Vista Forums' (http://www.vistax64.com/vista-news/9...-just-ram.html) 'Practical PC Online - Beginner's Guides: Vista - How Much Memory Can I Have With Windows Vista?' (http://www.practicalpc.co.uk/computi...bit-memory.htm) '64-bit - Wikipedia, the free encyclopedia' (http://en.wikipedia.org/wiki/64-bit) Sorry if this is a little technical - hope it helps -- barman58 |
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dxdiag reporting 3G RAM instead of 4G
barman58;892572 Wrote: 'Practical PC Online - Beginner's Guides: Vista - How Much Memory Can I Have With Windows Vista?' (http://www.practicalpc.co.uk/computi...bit-memory.htm) thanks,the conclusion of this article explained where i might loose some of my memory,i will sleep better now,as long as vista system reports me 4G of RAM -- us3r |
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dxdiag reporting 3G RAM instead of 4G
"us3r" wrote in message ... barman58;892515 Wrote: So basically all your RAM is there im sure it is.. but,will it really be using ALL of my RAM for games or progz like photoshop illustrator or 3dmax? i noticed this at the link u provided No. The memory space used by the hardware is unusable as RAM. in a 32-bit system. The RAM that would normally be at those addresses is unused. Tom Lake |