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Question

asus sabertooth p67 with g.skill ripjaws kits, RAM issue

by Dec 3, 2017 5:47AM PST

Hello!
Does anybody have same set as I have:
asus sabertooth p67
G Skill Ripjaws F3-12800CL7-2GBRM (2x2GB)
G Skill Ripjaws F3-10666CL7-4GBRH (2x4GB)
Intel i7-2600k?
The problem is that mb sees only 8GB of RAM when all sticks are installed. Whatever I did, i couldnt get 12GB. I see 8GB of ram In bios, but also I can see all sticks installed, can read infrormation about every slot: timings, voltage etc. I have tried all things I can do: software: changing bios options for 100500 times, voltages, timings, enabling-disabling various stuff etc; hardware - placed every stick in every slot, combined them in all possible ways, cleaned connectors, slots, checked cpu pins for bent, changed cmos battery, tryied another pairs of ram - got previous 8GB max, but my ram works perfectly on other machines.
I have this problem for years now, tried many times to fix it, but without success. Its not very critical to me, because I still have 8GB ram and its more or less enought for me, but anyway i want to know *** can be reason for this problem.

Discussion is locked

7 Posts
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Answer
Bios
by Dec 3, 2017 7:34AM PST
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reply
by psixgame Dec 4, 2017 12:08AM PST

Thanks sir, latest bios is from 2012, so I have had 5 years for updating.

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Answer
I see you mixed RAM.
by Forum moderator Dec 3, 2017 7:56AM PST

If it works, fine, but when it doesn't you learn why folk tell you to never mix.

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Re: I see you mixed RAM.
by psixgame Dec 4, 2017 12:10AM PST

But the strange thing that it have worked fine, and in some point of past time it just stopped working. On other mobos my "mixed" ram working perfectly.

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Which is why I wrote, if it works fine.
by r. proffitt Forum moderator Dec 4, 2017 8:07AM PST

When it doesn't then you learn why it's not advised. It's also possible to work then fail. Boards age, timing shifts and BSOD.

Nothing new going on here and really rough on folk that proved it was OK to mix.

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Re: I see you mixed RAM.
by psixgame Jul 30, 2018 10:01AM PDT

Fixed issue with memory by re-flashing ME bios region.

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Why that can help.
by r. proffitt Forum moderator Jul 30, 2018 10:25AM PDT

It can update what memory sticks it is compatible with. Long time, remember the best setups never mix RAM. Yes, you will find it works on a lot of machines and my view is from the repair counters where folk bring us the machines that didn't work out.

Good going with the update. Many are scared of BIOS updates, here, we always push the BIOS to it's last or current version. Too many machines were fixed by doing this but owners have been scared by others into not doing this themselves.

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