HoodiBoY Posted June 21, 2014 Share Posted June 21, 2014 I am facing a weird issue with one of my P.C. We have installed 3 module of DDR-3 RAM of 4/4/2 GB But in Windows 7 it shows only 3.9 GB usable. Please help. Specs are as follows Intel? Core? i5-760 Processor (8M Cache, 2.80 GHz) 1156 LGA Intel DH55TC Mobo Corsair 10 GB DDR-1333 Mhz Link to comment Share on other sites More sharing options...
+LogicalApex MVC Posted June 21, 2014 MVC Share Posted June 21, 2014 Looks like you have a 32bit version of Windows installed... Install Windows 7 x64 and you'll have access to all of the ram above 4GB. If you have it installed check that the memory remap feature is turned on in your BIOS. Raa, The Evil Overlord, SoCalRox and 5 others 8 Share Link to comment Share on other sites More sharing options...
Dot Matrix Posted June 21, 2014 Share Posted June 21, 2014 Yup. Congrats, you're using a 32-bit OS. You'll need to upgrade to 64-bit to use that memory. +E.Worm Jimmy, gohpep, Aergan and 1 other 4 Share Link to comment Share on other sites More sharing options...
Mindovermaster Moderator Posted June 21, 2014 Moderator Share Posted June 21, 2014 You should know that by now. Get 64-bit. 32-bit can only see ~4gb Link to comment Share on other sites More sharing options...
TAZMINATOR Posted June 21, 2014 Share Posted June 21, 2014 Looks like you have a 32bit version of Windows installed... Install Windows 7 x64 and you'll have access to all of the ram above 4GB. If you have it installed check that the memory remap feature is turned on in your BIOS. Yup. Congrats, you're using a 32-bit OS. You'll need to upgrade to 64-bit to use that memory. This problem is also on 64bit system as well... See example: Not my screenshot but I got it from Google. Link to comment Share on other sites More sharing options...
Torolol Posted June 21, 2014 Share Posted June 21, 2014 I encounter similar issues with friend's computer, it turn-out that DEP are not enabled on bios settings and for reasons that i do not know enabling it would also enable his windows 7 x64 access memory beyond 4GB boundaries. goretsky 1 Share Link to comment Share on other sites More sharing options...
RichardK Posted June 21, 2014 Share Posted June 21, 2014 On that Acer computer, it's probably using Shared Memory for the video card, hence not all of it is available to the OS. Also, sometimes it's a limitation of the chipset on the motherboard. goretsky, Raa, Aergan and 2 others 5 Share Link to comment Share on other sites More sharing options...
spaceelf Posted June 21, 2014 Share Posted June 21, 2014 This problem is also on 64bit system as well... See example: Not my screenshot but I got it from Google. Integrated video often reserves RAM no matter what OS you're running. So back to what everyone else said, you need a 64 bit OS. Aergan and Shiranui 2 Share Link to comment Share on other sites More sharing options...
Carbon Fiber Posted June 21, 2014 Share Posted June 21, 2014 Could be a BIOS setting, or some RAM is not recognized somehow. Try inserting it again to be sure. Link to comment Share on other sites More sharing options...
+ThePhoenix Subscriber² Posted June 21, 2014 Subscriber² Share Posted June 21, 2014 Err, no it's not, that's a completely different problem altogether, that sort of missing ram on a 64bit OS is from shared graphics memory, you will no doubt find that is an acer laptop that has the bios configured to use some of the RAM as it's graphics memory, a intel graphics feature on many laptops. The other posters are right, the chance is very high that this person has a 32Bit OS installed which is physically incapable of seeing that amount of RAM. Aergan 1 Share Link to comment Share on other sites More sharing options...
Max Norris Posted June 21, 2014 Share Posted June 21, 2014 Just a couple of things to toss in there. Have you made sure the memory is actually good? (MemTest86 ISO, whatever.) Have you looked at Resource Monitor and checked if the memory is "hardware reserved?" Sometimes indicates a memory configuration not supported by the motherboard. goretsky 1 Share Link to comment Share on other sites More sharing options...
TAZMINATOR Posted June 21, 2014 Share Posted June 21, 2014 On that Acer computer, it's probably using Shared Memory for the video card, hence not all of it is available to the OS. Also, sometimes it's a limitation of the chipset on the motherboard. Integrated video often reserves RAM no matter what OS you're running. So back to what everyone else said, you need a 64 bit OS. First of all, it is not my problem.. don't talk to me about it... Help OP... I am showing the example, that's all... I have no idea OP has a desktop tower or laptop... It could be BIOS settings or CMOS. Or re-seat the RAM Sticks. Link to comment Share on other sites More sharing options...
n_K Posted June 21, 2014 Share Posted June 21, 2014 10GB RAM sounds like a very strange amount to have installed. Definately not reserved for GPU, no home GFX card uses 6GB of RAM. goretsky and +E.Worm Jimmy 2 Share Link to comment Share on other sites More sharing options...
Bamsebjørn Posted June 21, 2014 Share Posted June 21, 2014 10GB RAM sounds like a very strange amount to have installed. Definately not reserved for GPU, no home GFX card uses 6GB of RAM. But not impossible. HoodiBiY, how much RAM does the BIOS say you have? You should be able see that when you turn the computer on... or by pressing DEL, F2 or F12 directly after turning the computer on. If the BIOS says you only have 4GB of RAM, try removing the 2GB module and see what happens. If the BIOS says you have 10GB of RAM, it probably that you're using 32-bit Windows. +virtorio and The Evil Overlord 2 Share Link to comment Share on other sites More sharing options...
gohpep Posted June 21, 2014 Share Posted June 21, 2014 It's something to do with the following: 32 bit Windows - reinstall a 64 bit version DEP problems - disable DEP, enable PAE Bad memory - check with memtest Link to comment Share on other sites More sharing options...
spy beef Posted June 21, 2014 Share Posted June 21, 2014 update bios Link to comment Share on other sites More sharing options...
c.grz Posted June 21, 2014 Share Posted June 21, 2014 Have you tried with just both 4 GB chips? goretsky 1 Share Link to comment Share on other sites More sharing options...
Eric Veteran Posted June 21, 2014 Veteran Share Posted June 21, 2014 http://www.intel.com/support/motherboards/desktop/dh55tc/sb/CS-030954.htm Check your memory and make sure it's a supported configuration and they're the correct type. Link to comment Share on other sites More sharing options...
Mindovermaster Moderator Posted June 21, 2014 Moderator Share Posted June 21, 2014 Are you all daft? It's 99% that he's using 32-bit. Until he answers, please leave all these assumptions aside. cacoe, Praetor and Shiranui 3 Share Link to comment Share on other sites More sharing options...
Kenneth Graulund Posted June 21, 2014 Share Posted June 21, 2014 http://www.intel.com/support/motherboards/desktop/dh55tc/sb/CS-030954.htm Check your memory and make sure it's a supported configuration and they're the correct type. I doubt it would get past POST if it was not supported. This is 99% chance 32Bit windows, but wow with all the varying degrees of retarded suggestions... isn't it obvious ? Mindovermaster 1 Share Link to comment Share on other sites More sharing options...
farmeunit Posted June 21, 2014 Share Posted June 21, 2014 Are you all daft? It's 99% that he's using 32-bit. Until he answers, please leave all these assumptions aside. Typically he wouldn't even have that usable with 32-bit, so that's probably why there are other suggestions. Link to comment Share on other sites More sharing options...
HoodiBoY Posted June 21, 2014 Author Share Posted June 21, 2014 I have Windows-7 x64..!!! BIOS says 10 GB. Even Windows 7 detects 10 GB but says (3.9 GB usable).More over this 10 GB of memory was working fine till last week. +Warwagon and gohpep 2 Share Link to comment Share on other sites More sharing options...
farmeunit Posted June 21, 2014 Share Posted June 21, 2014 Take out the 2GB stick and make sure the 4GB sticks are running in the right channels. You might also try the 4GB sticks separately to make sure they are both good. Link to comment Share on other sites More sharing options...
yowanvista Posted June 21, 2014 Share Posted June 21, 2014 Enable 'Memory Remap' if it's listed in your BIOS. Lighthalzen 1 Share Link to comment Share on other sites More sharing options...
timster Posted June 21, 2014 Share Posted June 21, 2014 there's a thread on Corsair's forum that relates to your motherboard http://forum.corsair.com/v3/showthread.php?t=114619 the memory finder on corsair.com doesn't even list your motherboard so it's possible that they no longer produce RAM that is compatible http://www.corsair.com/en-us/memory-finder -------- in the future, go with a different brand xrobwx71 1 Share Link to comment Share on other sites More sharing options...
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