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**Win 7 only sees 24 GB of 32 GB RAM installed..... help please...

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March 30, 2012 5:10:33 PM

Hi all,


I have recently built a new computer, everything had been working perfectly however the ammount of RAM windows displays has dropped from 32 GB to 24 GB, also during POST it displays 24 GB, whereas it had previously been showing the correct 32 GB...

When I run CPU-Z and look at the memory tab it shows 32 GB, so I think Windows could be allocating part of the RAM to something without me knowing....???? I have tried system restores and cleared cmos but neither have helped. This is a new system which I built 2 days ago.

Any help is much appreciated! Thank you


PC Spec:

OS: Win 7 64 bit ultimate
CPU: i7 3930k
Mobo: Asus Sabertooth x79
RAM: 32GB (4x8GB) Corsair Dominator 1600
SSD: OCZ V3 Max Iops 120GB
GPX: Geforce GTX 680






More about : win sees ram installed

March 30, 2012 6:59:47 PM

hi,

I've already tried this and it is still showing 24GB....
Related resources
a c 146 } Memory
March 30, 2012 7:00:53 PM

Are they all from 1 kit?
March 30, 2012 7:05:26 PM

yes, Corsair pn CMP32GX3MX1600C10

its was working fine until i was in the Asus AI suite adjusting the CPU fan profile when the PC crashed, I had to hard reboot it. Then during post error message came up saying Overclocking failed! I hadnt done any O/C at all, merely adjusting the profile of the fan cooler...

ever since then its only showed 24 gb of RAM during POST and in windows, however when I run CPU-Z it shows memory working fine, 32 GB with 4x8GB slots...

I will try booting with just 1 stick in, maybe this will make it reset some settings....
a c 146 } Memory
March 30, 2012 7:05:27 PM

Hi there,

Try this and make sure the max memory is unchecked!

a c 146 } Memory
March 30, 2012 7:06:22 PM

hexstatic said:
yes, Corsair pn CMP32GX3MX1600C10

its was working fine until i was in the Asus AI suite adjusting the CPU fan profile when the PC crashed, I had to hard reboot it. Then during post error message came up saying Overclocking failed! I hadnt done any O/C at all, merely adjusting the profile of the fan cooler...

ever since then its only showed 24 gb of RAM during POST and in windows, however when I run CPU-Z it shows memory working fine, 32 GB with 4x8GB slots...

I will try booting with just 1 stick in, maybe this will make it reset some settings....

What was the OC number @?
March 30, 2012 7:07:33 PM

May be ur motherboard supports RAM upto 24GB
a c 146 } Memory
March 30, 2012 7:08:25 PM

Yes, try to reseat the RAM.
March 30, 2012 7:08:52 PM

nikorr said:
What was the OC number @?


I wasnt overclocking, its always standard speeds of 3.2ghz cpu, 1600mhz RAM
a c 146 } Memory
March 30, 2012 7:09:44 PM

pratyush997 said:
May be ur motherboard supports RAM upto 24GB

ASUS SABERTOOTH X79 Support for up to 64GB of system memory with an 8-DIMM design.

And he said it was working : )
March 30, 2012 7:09:50 PM

pratyush997 said:
May be ur motherboard supports RAM upto 24GB


Its been working fine for 2 days showing 32 GB, its only now its decided to show 24.... :( 

I will try reset with 1 stick and see if this helps...

:bounce: 
a c 146 } Memory
March 30, 2012 7:11:44 PM

Asus AI suite might be the trouble maker. Reset it to the default setting! Restart.
March 30, 2012 7:35:42 PM

jaquith said:
Duh, what about what I said here to (You) -> http://www.tomshardware.com/forum/309482-30-asus-sabert... ??

Q - What modifications, if any, did you make to the BIOS?
Q - Did you test individually each stick as I suggested you do?



Yeah I did what your said :)  Took 3 sticks out and booted with 1. Then restarted with 4 sticks and it correctly shows 32 GB again, both in BIOS and Windows. :bounce: 




Thanks for all your help :)  I guess it was down to a bug with Asus AI suite causing the initial crash and hard reboot int he first place that messed it all up... :heink: 
a c 347 } Memory
March 30, 2012 7:55:46 PM

I won't ever disagree about NOT using AI Suite, but other than 'stability issues' I've never seen it affect a DIMM slot.

Most importantly, you're got her running! :) 
March 30, 2012 7:59:08 PM

32 Gb of ram, I really hope your pc run fast.
a c 347 } Memory
March 30, 2012 8:34:18 PM

More RAM for most consumers makes little to no sense. Gaming, sure 8GB (now) is the magic number.

Examples:
I run 32GB on my X79 however even for my SQL testing it's not enough and I have to split-up the data into pieces, in contrast my processing servers have considerably more.

If you render then 32GB is a decent amount to have, depending on the size job, and often the more you have the faster the render.

Folks using RAM Disk 16GB isn't that large. VM only allows 8 machines with 4GB or 4 machines with 8GB. Etc...

So it all depends.


At least RAM is a lot cheaper than it was! :) 
March 30, 2012 9:42:40 PM

Yeah RAM has come down a lot in price!

This 32 GB kit cost me a third of what the 6 GB kit cost me 3 years ago !!! Its crazy, but im not complaining!

Im interested in setting up some RAM caching, but not sure how I go about setting this up, do you have any suggestions?

Cheers :) 
March 30, 2012 10:04:40 PM

Then Try re installing or resetting for BIOS
a c 347 } Memory
March 30, 2012 10:04:44 PM

Sure, rather than reinventing the wheel, here is an excellent post; see -> http://rog.asus.com/forum/showthread.php?6124-How-To-Se...

Personally, I'd look in to both a RAM Drive and RAM Cache. Using a RAM Cache or RAM Drive I really don't recommend OC'ing the RAM i.e. keep it where it is per the 'Rated' settings I recommend. Also, test the crap out of the RAM first!!! Create a bootable CD/DVD of Memtest86+ and IMO test it at least overnight i.e. 8~12+ hours. If there's errors then that translates into corrupted data.

The RAM Cache looks nifty on benches, but any real excessive use of data or calculations I really recommend a RAM Drive; it's faster, more reliable and upon (normal) shutdown/booting can be saved/read from the 'drive' -- I recommend a high IOPS SSD.
a c 146 } Memory
March 30, 2012 10:04:46 PM

What is RAMDisk?

RAMDisk is a program that takes a portion of your system memory and uses it as a disk drive.

Sounds simple? In concept yes, but in practice there are many tricky issues to deal with when operating a RAMDisk in Windows. We continue to work hard to make RAMDisk as easy as possible to use, but there is always room for improvement. We provide updates regularly to improve features and address customer requests. Please be sure to READ THE INSTRUCTIONS (this document) before you try the various RAMDisk settings.

How does it work?

RAMDisk is a kernel-level driver that presents a standard disk drive to the OS, however, it stores and retrieves data from the system RAM on your motherboard instead of an actual, physical disk. Along with the Kernel Driver is a GUI that talks to the driver and allows the user to set various options as well as start and stop the Driver (create or delete a RAMDisk).

The Driver has been written to WDM standards and creates a low-level disk object that Windows Device Manager and Disk Management are able to "see" and manage. You can partition, format, mount a volume, and assign multiple drive letters to RAMDisk (but only if you would know how to do those things with a regular disk, RAMDisk does not do it for you).

Upon successful Start of the RAMDisk, a kernel level driver (RAMDisk.sys) is loaded into the Windows/System32/drivers folder. This driver will be available to Windows each time RAMDisk starts. It is removed when RAMDisk is stopped.

What is the benefit?

In a word: SPEED!

Most users use RAMDisk to speed up applications like:

Databases
Internet Explorer cache for faster web surfing
Audio and Video editing
CAD programs
Software compilers
Speeding up CD duplication
Games
SETI processing
TEMP files
Swap space
Web server cache
Custom applications with high I/O, high bandwidth, or high security requirements
March 31, 2012 9:13:30 AM

yeah Ive started with SuperCache by SuperSpeed. Im only on the trial version testing it, but so far so good :) 

cheers!!

:D 
a c 347 } Memory
March 31, 2012 1:02:38 PM

SuperCache allows delayed write which is nice until you run out of RAM.
July 12, 2012 3:38:49 PM

#"*******SOLUTION*******"#

HAHA, I HAVE A SOLUTION FOR YOU SIR... we have practically the exsact same build, an Asus sabortooth x79 mobo with an Intel core i7 3630k, I have 2 GTX680s , and the corsair vengeance 32gb set of ram... And I came into the same problem... Yet mine was only showing 16 gb and it said the ram speed was 1333 not its usual 1600... Soooo THE SOLUTION:


remove all but 8gb, leave them in slot a1 (farthest to the left) and b1 (3rd slot in from the left) so that you have 8 gigs over two channels (IMPORTANT)...

then hit the power button, and upon boot, hold the 'memOK!' Button located just above the mobo 24 pin power connector and just right of the ram slots... (Only on Asus mobo's)

then let the computer reset itself, if need be you may need to hit the power button again... But upon boot, boot straight into the Bios. DO NOT LET IT BOOT INTO THE OS!!!!

now in the bios make sure it only sees 8gb of ram, then SAVE AND EXIT the bios... MAKE SURE TO SAVE.

now insert the rest of your ram, all 32 gb... And reboot.

I checked in the bios before booting into the OS. but


TADA ALL 32BG OF RAM ARE THERE ;) .





I hope this works for you, I know it frustraighted the hell otta me ;) , good luck.
-JAKE
March 12, 2013 9:00:52 AM

nikorr said:
What is RAMDisk?

RAMDisk is a program that takes a portion of your system memory and uses it as a disk drive.

Sounds simple? In concept yes, but in practice there are many tricky issues to deal with when operating a RAMDisk in Windows. We continue to work hard to make RAMDisk as easy as possible to use, but there is always room for improvement. We provide updates regularly to improve features and address customer requests. Please be sure to READ THE INSTRUCTIONS (this document) before you try the various RAMDisk settings.

How does it work?

RAMDisk is a kernel-level driver that presents a standard disk drive to the OS, however, it stores and retrieves data from the system RAM on your motherboard instead of an actual, physical disk. Along with the Kernel Driver is a GUI that talks to the driver and allows the user to set various options as well as start and stop the Driver (create or delete a RAMDisk).

The Driver has been written to WDM standards and creates a low-level disk object that Windows Device Manager and Disk Management are able to "see" and manage. You can partition, format, mount a volume, and assign multiple drive letters to RAMDisk (but only if you would know how to do those things with a regular disk, RAMDisk does not do it for you).

Upon successful Start of the RAMDisk, a kernel level driver (RAMDisk.sys) is loaded into the Windows/System32/drivers folder. This driver will be available to Windows each time RAMDisk starts. It is removed when RAMDisk is stopped.

What is the benefit?

In a word: SPEED!

Most users use RAMDisk to speed up applications like:

Databases
Internet Explorer cache for faster web surfing
Audio and Video editing
CAD programs
Software compilers
Speeding up CD duplication
Games
SETI processing
TEMP files
Swap space
Web server cache
Custom applications with high I/O, high bandwidth, or high security requirements


i may need help too with something like that :(  http://www.tomshardware.com/forum/1623113/last-read i dont get why my mother board does that
!