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Only 8GB of memory showing in windows and BIOS of 32GB

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September 16, 2013 2:19:18 AM

Hey, I just bought a new rig, and after reading around some of the boards here, I gathered that of my 32GB memory, at least 16 should be showing up (using my old Win 7 Home Premium 64bit until I have more cash)
Unfortunately, I can't even get 16GB to show, only 8, here's what I bought in full (bold are what I'd guess are all the importants of this question):

CM Storm Stryker chasis
Asus Rampage IV EXTREME x79 motherboard
Intel Core i7-3930k CPU @ 3.20 GHz
Corsair H100i Cooling
Corsair AX 1200i Digital ATX Power Supply
Corsair Vengance Pro Series Red 32GB (4x8GB) 1600Hz CAS 9-9-9-24
EVGA GTX 770 Classified ACX (4GB)

(old parts kept in new setup)
OCZ 64GB SSD with Windows 7 Home Premium SP1 installed
Hitachi 1TB SATA II HDD
Western Digital 1TB SATA III HDD

Any help I can get on this will be most appreciated, If I can get help showing up at least 16GB of my memory, Any possible suggestion for future when I get an OS allowing of the full 32GB would also be great.
Thanks in advance for any help that comes in, I hope we can get this resolved soon.

More about : 8gb memory showing windows bios 32gb

a b } Memory
September 16, 2013 4:58:45 AM

Hi, Have you tested with only 2 RAM modules inserted?
Have you tested with single module each slot to see if booting?
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September 16, 2013 10:23:35 AM

alexoiu said:
Hi, Have you tested with only 2 RAM modules inserted?
Have you tested with single module each slot to see if booting?


I shall try that out as soon as I get home from work, thanks. I'll let you know what the result is once this is done, I wont be home though for another 5 hours (on my break right now)

I have to admit, shortly after posting this and running off to work, I suspected this might be the kind of response I'd get, hadn't thought of it sooner myself so that's what I get, probably because I'm not a morning person.
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September 16, 2013 4:57:28 PM

alexoiu said:
Hi, Have you tested with only 2 RAM modules inserted?
Have you tested with single module each slot to see if booting?


I just found out that the EZ Plug connection, wasn't in properly, meaning the extra current needed by the DIMM sockets wasn't being supplied.
16GB memory now shows.
Unfortunately, even the BIOS only shows 16GB when I install the rest of my RAM, I understand that Windows would limit this anyway but I want to know that all my RAM will eventually work when I install my upgraded OS.

Any ideas?
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a c 2199 } Memory
September 16, 2013 5:12:42 PM

Should all show in the BIOS regardless of OS, make sure sticks are firmly inserted in slots A1, B1, C1 and D1
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September 16, 2013 6:02:14 PM

Tradesman1 said:
Should all show in the BIOS regardless of OS, make sure sticks are firmly inserted in slots A1, B1, C1 and D1


I've already checked this as well as having installed by the manual recommendation, which is exactly as you've stated. When any one stick isn't completely in, I get debug codes 50~53 and the computer doesn't boot up, just remains powered on doing nothing, so there's no chance of faulty connection.

UPDATE
Just checked on CPU-Z, Got some concerning results.
It's only detecting 2 of my 4 sticks as being even connected, slots 1 and 3 show up fine, 5 and 7 give nothing, and all in between also
The other concerning result is that I have quad channel RAM, and CPU-z is only detecting dual channel.
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September 17, 2013 1:07:43 AM

C1 and D1 show as empty in the BIOS also, and I've been double, triple and quadruple checking them, also Still can't seem to make it enter quad channel mode.
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a b } Memory
September 17, 2013 2:31:31 AM

Zaiku said:
Hey, I just bought a new rig, and after reading around some of the boards here, I gathered that of my 32GB memory, at least 16 should be showing up (using my old Win 7 Home Premium 64bit until I have more cash)
Unfortunately, I can't even get 16GB to show, only 8, here's what I bought in full (bold are what I'd guess are all the importants of this question):

CM Storm Stryker chasis
Asus Rampage IV EXTREME x79 motherboard
Intel Core i7-3930k CPU @ 3.20 GHz
Corsair H100i Cooling
Corsair AX 1200i Digital ATX Power Supply
Corsair Vengance Pro Series Red 32GB (4x8GB) 1600Hz CAS 9-9-9-24
EVGA GTX 770 Classified ACX (4GB)

(old parts kept in new setup)
OCZ 64GB SSD with Windows 7 Home Premium SP1 installed
Hitachi 1TB SATA II HDD
Western Digital 1TB SATA III HDD

Any help I can get on this will be most appreciated, If I can get help showing up at least 16GB of my memory, Any possible suggestion for future when I get an OS allowing of the full 32GB would also be great.
Thanks in advance for any help that comes in, I hope we can get this resolved soon.


Zaiku, your memory limit is 16GB as you are using Windows 7 Home premium.

Please check for the details on Microsoft official site here-> http://msdn.microsoft.com/en-us/library/windows/desktop...(v=vs.85).aspx#physical_memory_limits_windows_7

You should remove extra 2 nos of 8GB RAM. Please follow and let me know the result.
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September 17, 2013 3:09:56 AM

Akashdeep said:
Zaiku said:
Hey, I just bought a new rig, and after reading around some of the boards here, I gathered that of my 32GB memory, at least 16 should be showing up (using my old Win 7 Home Premium 64bit until I have more cash)
Unfortunately, I can't even get 16GB to show, only 8, here's what I bought in full (bold are what I'd guess are all the importants of this question):

CM Storm Stryker chasis
Asus Rampage IV EXTREME x79 motherboard
Intel Core i7-3930k CPU @ 3.20 GHz
Corsair H100i Cooling
Corsair AX 1200i Digital ATX Power Supply
Corsair Vengance Pro Series Red 32GB (4x8GB) 1600Hz CAS 9-9-9-24
EVGA GTX 770 Classified ACX (4GB)

(old parts kept in new setup)
OCZ 64GB SSD with Windows 7 Home Premium SP1 installed
Hitachi 1TB SATA II HDD
Western Digital 1TB SATA III HDD

Any help I can get on this will be most appreciated, If I can get help showing up at least 16GB of my memory, Any possible suggestion for future when I get an OS allowing of the full 32GB would also be great.
Thanks in advance for any help that comes in, I hope we can get this resolved soon.


Zaiku, your memory limit is 16GB as you are using Windows 7 Home premium.

Please check for the details on Microsoft official site here-> http://msdn.microsoft.com/en-us/library/windows/desktop...(v=vs.85).aspx#physical_memory_limits_windows_7

You should remove extra 2 nos of 8GB RAM. Please follow and let me know the result.



I already understand that windows will limit my memory, what I want is for the rest to show up in BIOS so I know it will work when I install win7 ultimate.

As stated in the conversation since the original post, I have managed to solve the issue of only getting 8GB, but the BIOS still only reads 16 of 32 and sees slots c1 and d1 as empty.
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a b } Memory
September 17, 2013 4:08:17 AM

Does the system boot if single RAM module installed in C1 or D1?
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September 17, 2013 4:35:19 AM

alexoiu said:
Does the system boot if single RAM module installed in C1 or D1?



The manual recommends against that but I'll give it a try when I get home from work, I'm on my way out now unfortunately and won't be back for another 11 hours or so.
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a c 2199 } Memory
September 17, 2013 3:57:44 PM

SOunds like might have a bad mobo or MC (memory controller), might pull CPU and check for thermal compound on bottom, or in socket along with checking for debris/dust and bent/broken pins
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September 17, 2013 4:39:16 PM

CPU socket is nice and clean, thermal compound came pre-applied on the cooling plate so I had no mess to deal with, even though I still have half a syringe of compound laying around in my room.

Either way, checked taking out slots A1 and B1, leaving only C1 and D1 running, and it found the RAM after first giving me a PCI Hot Bus debug error, I re-arranged the sticks and somehow that fixed the issue, I now have all 32 GB of memory showing up.

I can't thank you guys enough for the help and suggestions, I'm a very happy man right now, grinning like a fool at the numbers in front of me, it even fixed the problem of my RAM being made dual channel instead of quad. I really appreciate the support thrown into this, and the end solution came about quite fast (in terms of attempted solutions and post count) so I'm really quite impressed with the knowledge stashed away in this forum.
I'll make sure to keep trawling around and see if there's any little bits I can help other people with, unlikely as it may be that I actually can, I can always try to find past solutions on here and pass them along where they're needed at the very least.
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a c 2199 } Memory
September 17, 2013 5:22:06 PM

Glad to have you around, can probably close out this thread, and now you can have some fun ;) 
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