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Upgraded 2500k 16gb Ram > 3770k, but wont post > 4gb Ram

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December 12, 2012 11:10:36 PM

Hey all. Thanks for reading this.

Initially I had a stable build of 16gb Ram with my 2500k processor by increasing the DRAM Voltage from 1.5 to 1.65. I recently upgraded my CPU to the 3770k, and it will no longer post with anything more than 4gb. I have tried several solutions including increasing the DRAM Voltage, the VCCIO voltage, and trying different ram sticks in different slots as well as setting bios settings to default. Nothing works.

tldr-only upgraded CPU but can no longer post 16gb ram

SPECS:
Sabertooth p67 mobo
intel core i7 3770k
16 gb, 4x4.
2x4=Corsair Vengeance 9-9-9-24 1.5V 1600mhz
2x4=Gskill Ripjaws F3-12800CL9D-8GBXL CL9-9-9-24 1.5v 1600mhz
windows 8
700w PSU
6870 GPU
I know that mixing ram brands is frowned upon, however everything worked prior to switching out the cpu.
Thanks for the help.

http://imgur.com/a/fMih4 [1] album of bios screenshots
December 17, 2012 9:12:43 PM

Hmmmm take out the sticks of ram...then put in JUST the Corsair ram both sticks. See if the system shows 8GB. Then try JUST the G-Skill ram and see if it shows 8GB. If it still shows 4GB then check if you have Windows 64bit. Otherwise the full 16GB Should show up make not sure why it shouldn't.
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December 17, 2012 9:50:31 PM

Take it that you have the newest BIOS for your board as well. Try one kit at a time since mixing can cause problems. The Volt limit for LGA1155 is something like 1.575 so going higher can damage the memory controller.
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