Computer Hope

Hardware => Hardware => Topic started by: rkhan1 on December 20, 2008, 09:02:52 AM

Title: Memory Caping
Post by: rkhan1 on December 20, 2008, 09:02:52 AM
I am running a ga-vm800pmc mouther bord with a 2Duo CPU em4500 2.20ghz. Nvidia GeForce 7300 gt. the bord has 4 mem slots 2 ddr2 and 2 ddr1, u can only run one or the outher not both. Max is 2 gig unbuffed mem. im trying to run 2 gig ddr2 533 unbuffed but can only run 1 gig because 2 1 gig stucks actuly makes it alittle more than 2 gig. the moutherbord only alows exactly 2 gig.does any one know a way to to cap the memory at 2 gig? my os is xp ser2...
 
well after reading from u all i went and did a memtest the second 1 gig ram was bad. brand new, wouldnt have thought that. thanks for all the help from everyone  and big thanks to Patio. next time i buy all test my self thanks agen all
Title: Re: Memory Caping
Post by: Calum on December 20, 2008, 09:46:05 AM
2 1GB sticks makes 2GB, simple maths.  Where are you getting the impression that 2 1Gb sticks make more than 2GB?
What happens if you try to boot with two 1GB sticks?
Title: Re: Memory Caping
Post by: BC_Programmer on December 20, 2008, 10:55:17 AM
My assumption would be that the board says it supports 2GB, and standard metric prefixes denote GB as 1000, not 1024- so the maximum as they see it is 2000MB.

Additionally, RAM is sold with markings indicating their size in MB; in this case, 1024 for the 1GB.


Thus, they come up with RAM that is 2048MB, and the board maximum of 2000MB.

Just a wild guess; but it is likely the case.
Title: Re: Memory Caping
Post by: rkhan1 on December 20, 2008, 12:27:34 PM
BC programer thats the hammer on the nail. Im just trying to figure it there away to trick the bios to only pick up exactly 2 gig. ps the manufacture says is supports the mem brand i perchesed.
Title: Re: Memory Caping
Post by: Raptor on December 20, 2008, 12:39:55 PM
Did you try telling it a joke and when it's off guard, quickly plug in the memory?

Worked for me.
Title: Re: Memory Caping
Post by: fgdn17 on December 20, 2008, 12:51:50 PM
BC programer thats the hammer on the nail. Im just trying to figure it there away to trick the bios to only pick up exactly 2 gig. ps the manufacture says is supports the mem brand i perchesed.

think you'll find just about every board manufacture says something to that effect, and they
actuall use some memory for the system board resources so the max. they see is 2048 minus system mem...

you are plugging them into the correct slots as specified by the manual???
Title: Re: Memory Caping
Post by: patio on December 20, 2008, 05:23:40 PM
What does the MBoard manual say ? ?
Are the RAM speeds within specs ? ?
I suspect there are more hidden details to this issue...
Title: Re: Memory Caping
Post by: BC_Programmer on December 20, 2008, 08:26:37 PM
what I said before was my thought process to understand the misunderstanding.

Your board supports 2GB. 2GB is 2048, not 2000. Especially when dealing with RAM. my ramblings seemed to indicate that your assumption was correct; thankfully for you however, it is almost assuredly not the case, and 2GB of RAM is 2048MB.
Title: Re: Memory Caping
Post by: rkhan1 on December 21, 2008, 09:49:35 AM
yes this is true but i still cant git it to work i have manoged to git allthe way to the windows is loding screen but the it reboots every time. so when i take the second 1 did ram out it boots allthe way
Title: Re: Memory Caping
Post by: patio on December 21, 2008, 11:08:46 AM
I find it extremely hard to fathom that a board would cap out at 2000MB ...
That being said i would DLoad and run MemTest...let it run at least 2 hours and test each stik individually...