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Trouble installing RAM in Asus P6T Deluxe V2 MB

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  • Asus
  • RAM
  • Motherboards
  • Computers
Last response: in Motherboards
July 3, 2013 9:22:06 AM

Hey users of Tomshardware,
I've got a problem which I hope you can be at assistance with!

I have a total of 12Gb of DDR3 1600Mhz Corsair ram sticks (2x2Gb and 2x4Gb) installed on my computer. My BIOS lists only 10Gigs which I find really odd. Windows only sees 8Gigs and I just installed CPU-Z to check up on that and it spots a total of 12Gigs installed on my system... That's just, well, weird.

Anyhow, I did some troubleshooting on my own and refered to my manual. According to the table in there it shows that, if I ougt to use 4 DIMM blocks that I should populate the following trichannels: A2,A1,B1,C1. This does NOT work.

I did some thinkin, tried installing only 1 stick into A1, and the computer cannot boot. I tried install it in C1, and the computer cannot boot. I installed it in B1 and the computer boots fine.
After that I installed the second block in A1 and C1 (with having 1 stick recognized in B1) and it did boot, but didn't show as having the secondary stick installed. I populated B1,B2 and it seems to recognize them both - and stuck the last two sticks into C1 + A1.

Also it might be worth noting that prior to the 2x4Gb ram purchase I had populated B1,B2 as the only two channels I found working and would recognize the total size of ram installed on the system back when I purchased my computer, as far as I recall.
And uh, yeah well I tried just about ANY combination of the ram modules in the various slots on the motherboard. This is the only combination which at least in the BIOS screen can show 10Gigs... Otherwise it shows only 8 or less, no matter what I do.

I have tested all 4 sticks and they work just fine on two other computers. So that is clearly not the issue.

Again, in my BIOS screen it displays a total value of 10Gigs. In windows it shows 8, and in CPU-Z it shows 12.

What am I to do next to be able to use well, at least just 10+ Gb of my ram blocks ? Is this a common issue ?

NB: I searched here on Tomshardware as well as googling the issue. It seems I am by FAR not the only one with this problem - it's ongoing and I have seen at least a dozen people experiencing the same issue, and that was just within a 10 minutes search.

Tech details:
OS: Windows 7 Ultimate 64-bit version
MB: Asus P6T Deluxe V2
RAM: 2x2Gb Corsair XM3 Dominator 1600Mhz DDR3 + 2x4Gb Corsair XM3 Dominator 1600Mhz DDR3
CPU: Intel Pentium Core i7 920 @ 2.6Ghz
GPU: GeForce GTS 670 (XFX)

If you need any additional information then please do leave a note and I will add whatever information you might need asap.

Thanks in advance.

More about : trouble installing ram asus p6t deluxe

a c 2068 Ĉ ASUS
a c 3827 V Motherboard
July 3, 2013 9:25:47 AM

Try the 4B sticks in slots 1-3 and the 2GB in slots 2-4, raise DRAM voltage + 0.05 and raise MC voltage + 0.10
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a b Ĉ ASUS
a c 149 V Motherboard
July 3, 2013 12:41:47 PM

It could be because they are from different kits.
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a c 2068 Ĉ ASUS
a c 3827 V Motherboard
July 3, 2013 12:43:31 PM

Yep, that's why I preach not to mix sets, may once again have come to mixed sticks that just don't want to play, happens all the time
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a b Ĉ ASUS
a c 149 V Motherboard
July 3, 2013 12:47:59 PM

Tradesman1 said:
Yep, that's why I preach not to mix sets, may once again have come to mixed sticks that just don't want to play, happens all the time


This. Even if the make and model are the same, I personally will not mix RAM.
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Best solution

a c 2068 Ĉ ASUS
a c 3827 V Motherboard
July 3, 2013 12:53:20 PM

ihog said:
Tradesman1 said:
Yep, that's why I preach not to mix sets, may once again have come to mixed sticks that just don't want to play, happens all the time


This. Even if the make and model are the same, I personally will not mix RAM.

___________________________

Big + 1, too many 'experts' here advising people "yeah, go ahead" think this was but one of 8 now I've tried to help today, and don't have hope for many
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July 4, 2013 5:12:17 AM

Okay guys, thanks a lot. I definently know by now that I'll never purchase any RAM that's not an exact copy off of the same model already installed on my system.

Also; I will try Tradesman1's soloution and post it up if it works.

Anyhow I really do appreciate all of the answers :) 
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a c 2068 Ĉ ASUS
a c 3827 V Motherboard
July 4, 2013 7:53:41 AM

Keep us updated
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