32GB RAM installed but only 28GB recognised

Nagash9 · Dec 2, 2015

Hi guys,

I've got a big problem with my PC.. First of all I had some trouble with turning it on, it was frozen on the first welcome screen from Asus and I had to keep restarting my computer, then eventually after a few tries it was working, then I've noticed that my computer is using only 28GB RAM out of 32GB RAM installed. I set the maximum amount in msconfig, tested all RAM sticks one by one, then 2-3 at once and I discovered something. It might be motherboard fault but I am not sure that's why I am asking you guys..

There are some BIOS photos attached:

http://imgur.com/ManMNph

http://imgur.com/LI3TUmq

http://imgur.com/LI3TUmq

I would say that it's something wrong with the second slot: DIMM_A2

PC:

http://uk.pcpartpicker.com/p/bJc7nQ

Thanks for any help..

fancarolina · Dec 2, 2015

According to the manual your should install those sticks in A1 B1 C1 and D1. (Page 2-5)

Try this and see if that fixes your issue.

Additional note: There are 2 BIOS revisions for that board newer then what your running.

Nagash9 · Dec 3, 2015

Thanks @fancarolina but it doesn't work, all sockets are in the right place now: A1, B1, C1 and D1 and still it shows 28GB (avaiable 27,2 GB) instead of 32GB. I have no clue what can be possibly wrong.. :/

Nagash9 · Dec 3, 2015

I just tried to turn my computer on now and here the blue screen appears and I cannot turn it on.

http://m.imgur.com/gmSt0cp

Whats going on..

Victorion · Dec 3, 2015

looks like the mobo is faulthy. Your cpu and mobo should support the rams and up to 64 GB.

It could be a faulthy ram stick as well.

Why do you need so much ram anyways?

Nagash9 · Dec 3, 2015

I changed my mscofig setup to 1 processor and 256 mb memory (what an idiot I know) is there any way how can I fix it?

fancarolina · Dec 3, 2015

Yea that sounds like a bad motherboard. Get an RMA on it. Who knows what else may be wrong with it.

Tradesman1 · Dec 3, 2015

Did all sticks come in a single package, if so, I'd try Memtest on each stick individually, if all good, look for a RMA on the mobo

Nagash9 · Dec 4, 2015

That's what I found browsing internet "Corsair Vengeance ram is notorious for not running well on the X79 platform.".

"Your best shot at getting the ram to work is to set the BIOS manually for your memory timings and ram voltage. Also I suggest giving your VCCSA/VTT a little bump. Perhaps to 1.2v. That might strengthen the performance of your IMC a little."

https://rog.asus.com...hp/t-22557.html

What do you think about it guys?

onehans1982 · Jun 10, 2016

to make it more funny there are a lot more posts with same issue and asus, including me

Search

32GB RAM installed but only 28GB recognised

Nagash9

Reputable

fancarolina

Distinguished

Nagash9

Reputable

Nagash9

Reputable

Victorion

Reputable

Nagash9

Reputable

fancarolina

Distinguished

Tradesman1

Legenda in Aeternum

Nagash9

Reputable

onehans1982

Honorable

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