Sign in with
Sign up | Sign in
Your question

Win7 Ram issue. Installed ram: 16GB (usable 7.99)

Tags:
  • Memory
  • RAM
  • Motherboards
Last response: in Memory
Share
January 1, 2013 11:46:57 PM

Ok, i know there are a lot of different threads about this, and yes, I've looked through them all and done what they've said and had no luck. The problem is I have 16 GB ddr3 1600Mhz ram installed, and the shows it, except only 8 of it is usable. I have win7 ult and its a legal copy. the motherboard supports up to 8GB per slot, so thats not the problem I have checked to make sure the max memory box in msconfig is unchecked, ive enabled memory reallocation in my motherboard, and I still have no idea what the problem is.

Custom Built by Me
Motherboard: MSI 970a-G45
Ram: Corsair Vengeance LP 16GB PC12800 DDR3 1600MHz 4x4
CPU: Phenom IIx4 955 BE o/c\'d to 3.7Ghz
GPU: HIS Radeon 5790 Ice Q 1gb GDDR5
Power Supply: Ultra LS 600 watt
HDD: Primary - 500GB Western Digital caviar black Secondary - 2TB Seagate barracuda 10k rpm
Case: Cooler Master HAF 932
OS: Win7 Ultimate

More about : win7 ram issue installed ram 16gb usable

a c 75 } Memory
a c 232 V Motherboard
January 2, 2013 12:06:20 AM

Power the system down.

Disconnect all power sources.

Remove the memory. Verify that the memory slots are clean.

Reinstall the memory ensuring that they are firmly inserted and the locks click into place.

Reconnect everything and power back up.

What now?
m
0
l
January 2, 2013 12:11:02 AM

Sorry, I forgot to post that I've already tried that a few times. Nice try though :D 
m
0
l
a c 75 } Memory
a c 232 V Motherboard
January 2, 2013 12:56:47 AM

Always check the simple stuff first.

So the BIOS reports 16GB, right?
m
0
l
January 2, 2013 7:37:27 AM

yep bios reports 16 gb win7 says installed memory: 16Gb(7.99 usable) and its not all hardware reserved i just dont know where it went lol ive checked each stick of ram and they are all fine
m
0
l
January 4, 2013 7:19:55 AM

*bump* Anyone have any more ideas?
m
0
l
a b } Memory
a b V Motherboard
January 4, 2013 11:13:08 AM

Try resetting the bios again and setting the ram settings to the SPD values of the ram.
Try booting after a bios reset if the system is stable then leave it.
m
0
l
January 5, 2013 4:56:47 AM

Thats how I have the system running now, and its been completely stable since I built it around 8 months ago. I dont know what changed for it to decide that only 7.99 was usable
m
0
l
a c 75 } Memory
a c 232 V Motherboard
January 5, 2013 12:15:50 PM

Try this, drop the CPU back to stock speed. Report back with the results.

If that fails to make a difference, while leaving the CPU at stock speed, drop your memory back to 1333 (vice the rated 1600). Report back those results.
m
0
l
January 5, 2013 7:39:16 PM

when running the cpu at stock speed, and the ram at 1333mhz, it still says the same thing, installed ram 16GB(7.99) usable.
m
0
l
a c 75 } Memory
a c 232 V Motherboard
January 5, 2013 7:49:40 PM

Was checking to see if your OC was the issue.

Try this. Download a Linux distro and burn to CD. I suggest Unbuntu Linux.

Here is the link to get it: http://www.ubuntu.com/download/desktop

Get the 64-bit version.

Use this link for info to boot as a Live CD (don't install):
https://help.ubuntu.com/community/LiveCD

The idea is to see if Linux sees the same problem. If not, we have a Windows problem and not a hardware problem.
m
0
l
January 11, 2013 7:38:40 AM

Sorry I was gone a few days, but the Linux Live CD worked and it recognized all 16GB So I guess it must be somewhere in windows thats having the problems
m
0
l
a c 75 } Memory
a c 232 V Motherboard
January 11, 2013 11:36:14 AM

Good to know that the issue isn't hardware related.
m
0
l
!