RAM usage in Windows 7 64 bit
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From: Bobby Johnson on 15 Nov 2009 12:24 Please find me just one link to any motherboard manufacturer that lists a 64-bit BIOS. There are NONE! There is no such thing in the wild! freddie b. wrote: > Excuse me good people. The writer states that he upgraded from a 32 bit > operating system to 64 bit system on the same machine. In this > operation, one must fully understand the design concept of the > manufacturer. The 32 bit operating system was supported by a 32 bit > bios. That being said, you can't get 64 bit performance from a 32 bit > tree. All configurations will remain in the 32 bit realm. That being > said, change the bios from 32 bit to 64 bit. Contact the manufacturer > and ask for a 64 bit image of the bios. Understand that the hardware > installed in the machine may have driver issues when going from 32 bit > to 64 bit. The operating system should fix this if drivers are > available. This should fix your problem forever. Your only limitation in > ram upgrade will be bios and physical machine profiles. > Thanks for your attention to this matter. > > "Franz Leu" <franz.spamremove.leu(a)norfolk.spamremove.ch> wrote in > message news:Oa2EmZiYKHA.5620(a)TK2MSFTNGP06.phx.gbl... >> R. C. White schrieb: >>> Hi, Bob. >>> >>> In our similar thread about this issue in alt.windows7.general, >>> another user is reporting a similar problem with his Sony computer, >>> which reports 4.0 GB RAM, 3.84 Usable. His screenshot shows that, >>> yes, he is running 64-bit Win7. I posted a similar screenshot there >>> showing no such limit in my Win7 x64 with 4 GB on board. >>> >>> So far as I have ever read or heard, Win7 imposes no such RAM >>> limitation. As you said, the limitation must be in the BIOS - or the >>> mobo or somewhere other than in Win7 itself. >>> >>> RC >> >> Some boards with integrated graphic adapters do share the memory, >> which results in exact that difference for the RAM. >> This usually can be adjusted in the BIOS. However, lowering this too >> much does not leave enough memory for the graphic chip. For W7 128MB >> should be a minimum. >> >> HTH >> Franz >
From: Tom Lake on 15 Nov 2009 15:51 "freddie b." <fbush01(a)msn.com> wrote in message news:17A7F049-E651-42BF-866A-B59CF0427F78(a)microsoft.com... > Excuse me good people. The writer states that he upgraded from a 32 bit > operating system to 64 bit system on the same machine. In this operation, > one must fully understand the design concept of the manufacturer. The 32 > bit operating system was supported by a 32 bit bios. The BIOS in ROM has nothing to do with the bitness of the OS. Vista and Win 7 don't use the ROM for anything. It's totally replaced by 64-bit software after IPL. The ROM is only used to load the first part of the OS which then loads the rest of the OS. ROM calls haven't been used since Win ME. Soon there won't even be a ROM BIOS. It is being replaced by EFI. In any case, ROM BIOS is a 16-bit program, not 32-bit. Tom Lake
From: Paul Shapiro on 16 Nov 2009 18:20 Agreed. Many BIOS's do have a setting to enable more than 4GB ram. The setting might be called Enable Memory Mapping, or whatever other label the motherboard mfg might have applied. That should only be enabled when running a 64-bit os. It re-maps peripheral ram addresses out of the way so all installed ram can be used. "Bobby Johnson" <rjohnson(a)discussions.microsoft.com> wrote in message news:%23BRq3hhZKHA.5620(a)TK2MSFTNGP06.phx.gbl... > Please find me just one link to any motherboard manufacturer that lists a > 64-bit BIOS. > > There are NONE! There is no such thing in the wild! > > > > freddie b. wrote: >> Excuse me good people. The writer states that he upgraded from a 32 bit >> operating system to 64 bit system on the same machine. In this >> operation, one must fully understand the design concept of the >> manufacturer. The 32 bit operating system was supported by a 32 bit bios. >> That being said, you can't get 64 bit performance from a 32 bit tree. All >> configurations will remain in the 32 bit realm. That being said, change >> the bios from 32 bit to 64 bit. Contact the manufacturer and ask for a >> 64 bit image of the bios. Understand that the hardware installed in the >> machine may have driver issues when going from 32 bit to 64 bit. The >> operating system should fix this if drivers are available. This should >> fix your problem forever. Your only limitation in ram upgrade will be >> bios and physical machine profiles. >> Thanks for your attention to this matter. >> >> "Franz Leu" <franz.spamremove.leu(a)norfolk.spamremove.ch> wrote in message >> news:Oa2EmZiYKHA.5620(a)TK2MSFTNGP06.phx.gbl... >>> R. C. White schrieb: >>>> Hi, Bob. >>>> >>>> In our similar thread about this issue in alt.windows7.general, another >>>> user is reporting a similar problem with his Sony computer, which >>>> reports 4.0 GB RAM, 3.84 Usable. His screenshot shows that, yes, he is >>>> running 64-bit Win7. I posted a similar screenshot there showing no >>>> such limit in my Win7 x64 with 4 GB on board. >>>> >>>> So far as I have ever read or heard, Win7 imposes no such RAM >>>> limitation. As you said, the limitation must be in the BIOS - or the >>>> mobo or somewhere other than in Win7 itself. >>>> >>>> RC >>> >>> Some boards with integrated graphic adapters do share the memory, which >>> results in exact that difference for the RAM. >>> This usually can be adjusted in the BIOS. However, lowering this too >>> much does not leave enough memory for the graphic chip. For W7 128MB >>> should be a minimum. >>> >>> HTH >>> Franz >>
From: infamous_otter on 13 Dec 2009 13:09 haha, gues what this is a known issue by microsoft and a very common issue with windows 7. I am having the same issue, upgrade from vista (wich read all 6 gigs of my ram) to win 7 64bit wich sees all 6 gigs but but only considers 3.5 gigs usuable. Yup thats right Windows 7 64 Bit sometimes just cant get past that 3.5 gig memory limit. After spending a week dealing with microsoft tech support on the phone they considerd this issue unresolved and claim the are currently working on an update to fix it. according to the tech guy from microsoft, it is an issue with the bios and the motherboard. all of you that are having this problem, it is becuase something in windows 7 does not fully support either your mother board or your bios or both. The memory mapping will do you no good. * Unless you go out and buy the most latest motherboard, processor and ram, you are going to continue to have this issue.* <-- Directly from microsoft tech support. To the guy that posted this "It also depends on exactly which version of the board you have. There are 3 editions of the PT880 Pro-A7 and the specs for 2 of them is only 2GB of RAM is supported. Now, even though they say only 2GB is supported you may realize a bit more than that but not all 4GB. Dell says my 1501 laptop only supports 2GB. With 4GB in the laptop Dell has it configured so that Win 7 only sees 2.25GB." Gues what? They lied to you. Their hardware is not fully compatible with windows 7. That is why it only sees 2.25 gb. So... since I have installed windows 7 64 bit, I have lost over half of my ram (3.5gigs Unusable), I have lost the ability to print on any of the 20 printers at my home and office (there are as of yet no drivers for windows 7 64 bit on most printers), oh yeah, and the latest windows update killed microsoft office. Check out this screen shot of windows 7 64bit not passing the 3.5 gig memory limit http://www.rustycage.net/sysinfo.jpg EPIC FAIL!!! *I want my money back.* -- infamous_otter ------------------------------------------------------------------------ infamous_otter's Profile: http://forums.techarena.in/members/163605.htm View this thread: http://forums.techarena.in/windows-x64-edition/1268043.htm http://forums.techarena.in
From: Arie Broekhuizen on 28 Dec 2009 05:57
I have a Dell Studio XPS 435MT from September 2009 and Windows 7 (64 Bits) installed. The latest available BIOS is installed (Version 1.1.3) This computer reports 6 Mb memory from the installed 6 Mb memory. So what's the problem ?? Arie.B "infamous_otter" <infamous_otter.435anb(a)DoNotSpam.com> schreef in bericht news:infamous_otter.435anb(a)DoNotSpam.com... > > haha, gues what this is a known issue by microsoft and a very common > issue with windows 7. I am having the same issue, upgrade from vista > (wich read all 6 gigs of my ram) to win 7 64bit wich sees all 6 gigs but > but only considers 3.5 gigs usuable. Yup thats right Windows 7 64 Bit > sometimes just cant get past that 3.5 gig memory limit. > > After spending a week dealing with microsoft tech support on the phone > they considerd this issue unresolved and claim the are currently working > on an update to fix it. > > according to the tech guy from microsoft, it is an issue with the bios > and the motherboard. all of you that are having this problem, it is > becuase something in windows 7 does not fully support either your mother > board or your bios or both. The memory mapping will do you no good. * > Unless you go out and buy the most latest motherboard, processor and > ram, you are going to continue to have this issue.* <-- Directly from > microsoft tech support. > > To the guy that posted this "It also depends on exactly which version > of the board you have. There > are 3 editions of the PT880 Pro-A7 and the specs for 2 of them is only > 2GB of RAM is supported. Now, even though they say only 2GB is > supported you may realize a bit more than that but not all 4GB. Dell > says my 1501 laptop only supports 2GB. With 4GB in the laptop Dell has > it configured so that Win 7 only sees 2.25GB." > > Gues what? They lied to you. Their hardware is not fully compatible > with windows 7. That is why it only sees 2.25 gb. > > So... since I have installed windows 7 64 bit, I have lost over half of > my ram (3.5gigs Unusable), I have lost the ability to print on any of > the 20 printers at my home and office (there are as of yet no drivers > for windows 7 64 bit on most printers), oh yeah, and the latest windows > update killed microsoft office. > > Check out this screen shot of windows 7 64bit not passing the 3.5 gig > memory limit http://www.rustycage.net/sysinfo.jpg > > EPIC FAIL!!! > > *I want my money back.* > > > -- > infamous_otter > ------------------------------------------------------------------------ > infamous_otter's Profile: http://forums.techarena.in/members/163605.htm > View this thread: > http://forums.techarena.in/windows-x64-edition/1268043.htm > > http://forums.techarena.in > |