3.99GB usable (6GB installed)?

bitbeta · 10-04-2009, 09:50 PM

My new computer has 2gb*3 ddr3 1333 on my x58 board. When I install 32-bit Windows, it says that I only have 2.99 GB of memory. When I use the 64-bit version(Windows 7 7600 64-bit), it says that 3.99GB is usable, while 6GB is installed.
On the POST screen, I noticed that "6144MB OK" is diaplayed. In BIOS, it also says I have 6144MB of memory. I checked in CPU-Z and, as a result, it said that all three slots are OK, and all the data is dispalyed correctly. I've reinstalled the OS, but nothing changed. What should I do?

**speedster123** · 10-09-2009, 05:00 AM

check to see if there is a bios update for your board.

**FreoHeaveho** · 10-09-2009, 07:16 AM

full system specs pls

but

totally agree with speeds

**Tyree** · 10-09-2009, 07:45 AM

2.99GB would be correct for a 32Bit OS. Is the PC prebuilt or custom?

**FreoHeaveho** · 10-09-2009, 08:28 AM

Quote:

Originally Posted by Tyree

2.99GB would be correct for a 32Bit OS. Is the PC prebuilt or custom?

but only shows 4GB for 64bit OS, so that is not the issue. THis sounds like a tri-channel issue - thus a bios upgrade may fix it.

**Tyree** · 10-09-2009, 09:22 AM

Correct. My post was only to assure you that 2.99 was correct for the 32Bit OS.
DDR3 has it's own set of issues so hopefully the Bios update will resolve the 64Bit issue.

bitbeta · 11-16-2009, 07:06 AM

Thank all of u for your help.
Updating BIOS really works, and it is working properly now.

**speedster123** · 11-16-2009, 01:42 PM

glad you have it sorted.

10-04-2009, 09:50 PM	#1 (permalink)
bitbeta Registered User Join Date: Oct 2009 Location: Nanjing, China Posts: 8 OS: Windows 7 x64	3.99GB usable (6GB installed)? My new computer has 2gb*3 ddr3 1333 on my x58 board. When I install 32-bit Windows, it says that I only have 2.99 GB of memory. When I use the 64-bit version(Windows 7 7600 64-bit), it says that 3.99GB is usable, while 6GB is installed. On the POST screen, I noticed that "6144MB OK" is diaplayed. In BIOS, it also says I have 6144MB of memory. I checked in CPU-Z and, as a result, it said that all three slots are OK, and all the data is dispalyed correctly. I've reinstalled the OS, but nothing changed. What should I do?

10-09-2009, 05:00 AM	#2 (permalink)
speedster123 Mentor Join Date: Oct 2006 Location: United States-New York-Long Island Posts: 5,195 OS: xp pro SP3 My System	Re: 3.99GB usable (6GB installed)? check to see if there is a bios update for your board. __________________

10-09-2009, 07:16 AM	#3 (permalink)
FreoHeaveho TSF Enthusiast Join Date: Aug 2006 Location: Australia Posts: 3,213 OS: Windows Vista Ultimate 64 SP2, Windows XP Professional SP3, Mac OSX Leopard My System	Re: 3.99GB usable (6GB installed)? full system specs pls but totally agree with speeds __________________ PC Wizard-VGA 2009 Charts-Power Supply Info-Multi/Single Rail PSU?-Speedfan-Driver Sweeper

10-09-2009, 07:45 AM	#4 (permalink)
Tyree Mentor Hardware Team Join Date: May 2009 Location: Illinois Posts: 5,385 OS: XP Pro-7RC-Mandriva My System	Re: 3.99GB usable (6GB installed)? 2.99GB would be correct for a 32Bit OS. Is the PC prebuilt or custom? __________________ Posting your PC specs will help us to help you quicker and more efficiently.

10-09-2009, 09:22 AM	#6 (permalink)
Tyree Mentor Hardware Team Join Date: May 2009 Location: Illinois Posts: 5,385 OS: XP Pro-7RC-Mandriva My System	Re: 3.99GB usable (6GB installed)? Correct. My post was only to assure you that 2.99 was correct for the 32Bit OS. DDR3 has it's own set of issues so hopefully the Bios update will resolve the 64Bit issue. __________________ Posting your PC specs will help us to help you quicker and more efficiently.

11-16-2009, 07:06 AM	#7 (permalink)
bitbeta Registered User Join Date: Oct 2009 Location: Nanjing, China Posts: 8 OS: Windows 7 x64	Re: 3.99GB usable (6GB installed)? Thank all of u for your help. Updating BIOS really works, and it is working properly now.

11-16-2009, 01:42 PM	#8 (permalink)
speedster123 Mentor Join Date: Oct 2006 Location: United States-New York-Long Island Posts: 5,195 OS: xp pro SP3 My System	Re: 3.99GB usable (6GB installed)? glad you have it sorted. __________________