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Old January 19th 16, 06:10 AM posted to alt.comp.periphs.videocards.nvidia
Ant
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Default How come RAM is taken away for video cards? Because of my video card's VRAM?

Le Forgeron wrote:
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Le 17/01/2016 10:31, Ant a écrit :
Like I have 3 GB of RAM, but Windows show 2.5 GB. I was told
because it is a shared memory?

Thank you in advance.


Are you sure it's not 4 GB of RAM, but Windows showing only 3.5 GB ?
On a 32 bits system, some of the addressing space must be mapped to IO
board... historically, the IO were mapped at the top of the 4GB
address space (of the 32 bits), alas with 4GB memory being now
available, that trick does not work... or rather still work too well,
and then some memory cannot be used as such.


Please describe your motherboard & CPU (name them at least), and your
version of windows.


And how you get the measurement.


Sorry. I meant to say 6 GB of RAM and only 2.5 show up in 32-bit Windows
XP Pro SP3's About. Details: Intel i7 950 CPU (quad-core), three 2 GB of
Kingston HyperX T1 Series 240-Pin DDR3 SDRAM 2000 (PC3 16000) Desktop
Memory Model KHX2000C9AD3T1K3/6GX DDR3 RAM (6 GB total; 2.5 GB shown;
will install a 64-bit OS later on to use it all) in 32-bit old, Windows
XP Pro. SP3 (Internet Explorer v8 and DirectX 9.0c [June 2010]), EVGA
X58 SLI (132-BL-E758; BIOS date 5/11/2010; v6.00 PG; release number
IX58SZ64) motherboard, MSI R4870-T2D512 OC Radeon HD 4870 512 MB (using
the very old ATI Catalyst driver v9.4 since newer drivers cause Windows
XP's clock to slow down with DVI and rare, random hard lock ups with
videos; VGA, with a DVI adapter through a KVM, and DVI directly to the
same monitor [dual connections one at a time]; connected to a 21.5"
Samsung SyncMaster T22B350ND HDTV, an used mid-tower Antec P180 ATX
case, five 120 mm case fans, a side dual cooler fan to cool the case,
two onboard RealTek Gigabit Ethernets (only use one) and onboard RealTek
HD Audio, Antec HCG-620M (620 watts) power supply unit (PSU), a
Hauppauge WinTV-HVR-2250 PCIe (dual tuners), a Broadband Technologies
Air2PC-ATSC-PCI HDTV tuner cards (DVB; revision 2), LG HL-DT-ST DVDRAM
GH24NS50 burner drive, Sony NEC Optiarc DVD-RW AD-7220S SATA burner
drive, two internal 7200 RPM Seagate SATA hard disk drives (HDDs)
[ST3320620AS 320 GB and ST310005N1A1AS-RK 1 TB], an optical USB three
buttons mouse, and Logitech Z-2300 speakers (2.1 setup and analog).

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