TechSpot

Bios memory and XP memory shows up different

By MysterioMask
Jul 23, 2009
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  1. I got a new laptop, which im using now, came with 3 gig ram, i got another 2 gig ram and swapped out the old 1 gig so i now have 4 gig ram. When i right click my computer and look at the ram it says 3 gigs still, but when i go into bios it reads as 4 gigs, is this a problem i should worry about? can this be fixed, am i running 3 gigs or 4 gigs? is this a problem at all or normal?

    I swapped the new ram out and left the original 2 gig in, and it read as 2 gig, i took the old one out and put in the new 2 gig and it read as 2 gigs, i put the old 1 gig and new 2 gig and it read as 3 , i put old gig and old 2 gig in and it read as 3, but when i put both 2 gigs in it reads as 3 in xp, while all other configurations show up properly in both bios and xp.

    If you need more information on comp just ask
  2. red1776

    red1776 Omnipotent Ruler of the Universe Posts: 5,894   +88

    Hi MysterioMask,
    the short version is that it is something called MMOI, memory mapped I/O reservations, its an architectural design and decision made long ago when the idea of having a full gig of ram was thought to be preposterous and would not ever happen or be needed. in a 32 bit os
    it lets you use somewhere between 2.75 and 3.25 Gb of 'working memory' and reserves the rest for things like pci buses, installed hardware, etc. the other Gig is there, you just don't get to use it as working memory. your bios shows you physical Ram installed. and XP is showing you the "working Ram" you have availible.
  3. MysterioMask

    MysterioMask TechSpot Enthusiast Topic Starter Posts: 180

    Sorry if im being stupid but, shouldnt it only show like 2 gigs when i have 3 in then instead of showing 3 gigs. This is a relitively new laptop, so i would think this wouldnt be a problem. and is there a way to transfer more to working memory at all?
  4. red1776

    red1776 Omnipotent Ruler of the Universe Posts: 5,894   +88

    no because the threshold for 32 bit operating systems is that it lets you have around 3 Gb as working memory, it doesn't just take a 1Gb automatically. you can have up to 3gb +/- (2.75-3.25) before Memory mapping starts 'reserving' memory. and no you cant transfer memory to working memory unfortunately. the way around it is to move to a 64 Bit version of your operating system.then you can have up to 128gb of memory. did that help? and that's not stupid.:)
  5. Tedster

    Tedster Techspot old timer..... Posts: 10,074   +13

    if you have integrated graphics, your ram will be eaten by that.
    windows xp will use a large portion as well along with any other startup up programs.

    even if you install more than 4 gb of ram, the limit for 32bit operating systems is around 3.4 GB. anything beyond that cannot be addressed.
  6. captaincranky

    captaincranky TechSpot Addict Posts: 10,656   +877

    Is There Such a Thing as Two Short Answers....?

    MMOI.......Good One red.......!

    Brace yourself, yet another short answer incoming.

    2 to the 32nd equals 4 billion something, or 4 Gigabytes, which resolves itself as a much more convenient, verily, more accurate term. Plus you needn't remember the "and something" exact number . So, that only gives the 32bit OS 4GB of places to put s***. Take 4GB, subtract all the hardware addresses and what you have left is that which Windows shows you.

    Here's the missed part, ALL modern motherboards must be 64 bit enabled. This is to permit, (obviously) 64 bit OSes, but moreover Intel's EMT (extended memory technology). NO, recent Intel CPU will work in a 32 bit board. I daresay the same thing is likely true of AMD's offerings. So, theoretically a 64 bit board could offer 1 terrabyte of potential addresses. (2 to the 64 th).
    Anyway, our 64 bit board can show much larger numbers than our lowly 32 bit XP can grasp. (I have 4 copies, so don't get your panties in a bunch).

    Ancient history: As "recently" as the Intel 915 chipset, mobos were only 32 bit enabled. So, they could only present the hardware reduced remainder of 4GB of RAM to the OS in the first place.
  7. red1776

    red1776 Omnipotent Ruler of the Universe Posts: 5,894   +88

    umm...carry the one?

    uuhhh....so im back to how many inches in a gallon. :eek::haha::p:wave:
  8. captaincranky

    captaincranky TechSpot Addict Posts: 10,656   +877

    Is that a cubic gallon or a linear gallon...? :rolleyes:
  9. red1776

    red1776 Omnipotent Ruler of the Universe Posts: 5,894   +88

    Honestly Cap! try...try not to be absurd, its a Celsius gallon.
  10. captaincranky

    captaincranky TechSpot Addict Posts: 10,656   +877

    Nope, I Can't Let That Slide,....(As much as I would Like to)

    So then, one would add 32, multiply by 1.4, then subtract 32 to determine how many inches are in a Fahrenheit gallon?
  11. red1776

    red1776 Omnipotent Ruler of the Universe Posts: 5,894   +88

    Finally!....he gets it :rolleyes:
     
  12. captaincranky

    captaincranky TechSpot Addict Posts: 10,656   +877

    For Those Desiring Accurate Results,,,,,,

    Fahrenheit to Celsius

    1. Subtract 32 from the Fahrenheit temperature.
    2. Divide by 1.8. An example:
    * 74ºF = (74 - 32) / 1.8 = 23ºC

    Celsius to Fahrenheit

    1. Multiply the Celsius temperature by 1.8.
    2. Add 32. An example:

    * 30ºC = (30 x 1.8) + 32 = 86ºF

    I don't know how to do the price conversion, should we be speaking with respect to a Fahrenheit versus a Celsius gallon of gasoline,
  13. raybay

    raybay TechSpot Evangelist Posts: 10,716   +6

    What color is it when you see that lift, anyway, Captain Crankly ?
  14. raybay

    raybay TechSpot Evangelist Posts: 10,716   +6

    Sorry! Captain Crankily. My mistreek.
  15. red1776

    red1776 Omnipotent Ruler of the Universe Posts: 5,894   +88

    Thats interesting Cap, I have just always used the chart :D, and for god sake! it's celsius gasoline.....Fahrenheit gas is dangerous, and sold by the pound.
  16. raybay

    raybay TechSpot Evangelist Posts: 10,716   +6

    Finally, on this site, and nowhere else, I feel enlightened. It is the poetry of physics that makes the difference.
  17. luvhuffer

    luvhuffer TechSpot Paladin Posts: 637

    Meanwhile, MysterioMask is thinking WTF? It always pains me to see these kind of discussions where the lowly Kelvin gallon gets overlooked. :)
  18. captaincranky

    captaincranky TechSpot Addict Posts: 10,656   +877

    Well, every dog has it's day. As I recall, "Kelvin" was named after Lord Kelvin, who was, (I believe), the administrated of the British Science Academy. (Or something like that).

    From all reports he was also a pompous *****, who loved to be patronized. Need that level of accommodation extend to the present day? I think not!

    If MysterioMask stills needs help reconciling the loss of 1GB of memory, I would be very surprised. Not to mention shocked and appalled.

    There's always the new thread venue. However be forewarned, it would almost certainly face the same badly off topic fate as this one.
  19. red1776

    red1776 Omnipotent Ruler of the Universe Posts: 5,894   +88

    < Raybays thinking 'i cant believe I said this ***** (red1776) had common sense'

    @ luvhuffer: the Kelvin gallon?.. just like to start trouble dont ya!? :haha:
  20. captaincranky

    captaincranky TechSpot Addict Posts: 10,656   +877

    Is it possible to elevate stupidity to an art form? Hey, it's an honest question, it's not directed any anybody. I was kind of thinking I might like to give it a whirl.
  21. red1776

    red1776 Omnipotent Ruler of the Universe Posts: 5,894   +88

    i have always thought so...why do you ask? oh! i get get it....so mine is dumberer than yours?
  22. captaincranky

    captaincranky TechSpot Addict Posts: 10,656   +877

    Yeah well, yesterday I couldn't even spell compooter technacumnician, now I are one!
  23. red1776

    red1776 Omnipotent Ruler of the Universe Posts: 5,894   +88

    :haha: oh yeah? well i told my wife i came in under budget on my last computer.....beat that.
  24. captaincranky

    captaincranky TechSpot Addict Posts: 10,656   +877

    I said computer technician, that's the duplicity of a pathological liar!

    Red, you're a gentleman and a sociopath. :rolleyes:;):haha:
  25. red1776

    red1776 Omnipotent Ruler of the Universe Posts: 5,894   +88

    the neighbors dog told me to do it......

    LOL didnt have to add that ,
    as part of the club , I doff my der ** to you as well. :D:p

    ****why does it do that to the word der**? as in gentleman's domed stiff felt hat
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