Sign in with
Sign up | Sign in
Your question

Installed 6GB ran, but I'm only seeing 4GB...

Last response: in Memory
Share
November 10, 2009 4:27:30 AM

Hi, I recently built my own computer with 6GB RAM running Windows 7 64 bit, however control panel is saying I have 4GB installed. I also ran msconfig and under advanced options under the Boot tab, the maximum memory won't let me push it passed 4096. Below are the relevant specs for my computer. Thank you in advance!

MOBO - ASUS P7P55 LX
RAM - Obsidian DDR3 1600 (3 @ 2GB)
Graphics Card - Radeon 5770
Processor - Core i5

More about : installed 6gb ran 4gb

a b } Memory
November 10, 2009 4:37:51 AM

To my understanding, that MoBo / i5 supports 2 channel memory (RAM installed in multiples of 2) .... you have a 3 channel kit (RAM installed in multiples of 3)
m
0
l
November 10, 2009 4:40:17 AM

Ah, so with my current settings I'd have to throw in another 2GB card then I can max out at 8GB?
m
0
l
Related resources
November 10, 2009 11:17:37 AM

No, 3 sticks should still be recognized, even if its inefficent.

How much does the BIOS recognize?
m
0
l
a b } Memory
November 10, 2009 3:53:46 PM

Open CPU-Z and make sure it shows all 6GB....
m
0
l
November 10, 2009 4:14:31 PM

I ran CPU-Z and its reading all three RAM pieces. Under the Memory tab it has 6144 MBytes for Size adn under the SPD tab I'm seeing Ram for Slot 1, 2, and 3. Thoughts?
m
0
l
a b } Memory
November 10, 2009 5:18:46 PM

Your system is running 6GB ATM, but it looks like it is not in dual channel mode. Not sure if it is the same as AM3 systems but you can run dual channel with either 4 or 8GB on RAM. The P55 support dual channel only meaning a user will normally buy a set of 2x 2Gb or 4x 2Gb DDR3. The 3x 2Gb and 6x 2Gb sets are normally used with the x58 platform. Your best option here is to buy a single stick for a total of 8Gb.
m
0
l
November 10, 2009 11:57:39 PM

Ok. So for now would you suggest removing a RAM card to optimize efficiency?
m
0
l
a b } Memory
November 11, 2009 12:03:30 AM

Try this, remove the third module, test your PC with a benchmark like Sandra, Vantage or PCmark. Then install the third module and test again... Compare marks and you should have your answer.
m
0
l
Anonymous
a b } Memory
February 28, 2010 12:21:52 PM

I JUST BUILT A NEW SYSTEM TO I7 960 ON X58A-UD7 GIGABYTE MOTHERBOARD AND 6GIG OF OCZ TRIPLE CHANNEL RAM AND ON WIN 7 64 BIT OS AND IN THE SYSTEM TAB IT SAYS 6GIGTOTAL BUT ONLY [4GIG USEABLE ] WTF !!! THE OTHER 2048 MB IS RESERVED FOR HARDWARE ?
m
0
l
March 13, 2010 12:43:47 AM

I have the following hardware

intel core i7-920
Gigabyte x58A-UD3R motherboard
6gb of OCZ DDR3 1600mhz ram

and I'm running Windows 7 64 bit.

I was experiencing this same issue. If I ran the ram at 1600mhz, I could only see 4gb, but if I ran it at 1066mhz I could see all 6gb. I noticed that in my bios settings, the DRAM voltage was auto set to 1.5V. After upping it to 1.6V, I am able to run my ram at 1600mhz and see all 6gb seemingly with no problem.

Hope this helps.
m
0
l
!