All new build, * boot with 16GB RAM, will with 8GB

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Joined: Sat May 12, 2018 3:12 pm

All new build, * boot with 16GB RAM, will with 8GB

Postby JosephGalvan » Tue May 22, 2018 5:54 pm


My motherboard is a Gigabyte GA-Z68MA-D2H-B3 and the RAM is 4x4GB G.SKILL Ripjaws X Series DDR3 1600. First real build, so got freaked out a bit when I press the power switch and the computer goes into a reboot cycle every few seconds, never reaching BIOS.
Read many Newegg reviews, and there seems to be a quirk with the GA-Z68MA-D2H-B3 when dealing with the amount of RAM I have (or maybe just the G.SKILL Ripjaws X Series). Got to the BIOS only after pulling out two sticks, and apparently I have to change some setting there before installing the full complement of RAM.
From the Newegg reviewers who encountered this issue, it seems the problem is related to the Extreme Memory Profile (X.M.P.) setting (but they don't go into details). Changing that to Profile1 did not fix the issue--do I also have to handpick some values for the profile before anything changes? I don't understand what the issue could be, as the first two sticks are picked up properly as 1.524v, 1600Mhz, and 9-9-9-24. And the RAM specifically says "Designed for Z68 & P67 motherboards" and the motherboard says in its specs "Support for DDR3 2133/1866/1600/1333/1066 memory modules". Currently booting with RAM in the DDR3_4 and DDR3_2 sockets, so no dual-channel, but inserting a third or fourth stick makes it non-bootable (Haven't tried other combinations as I'd have to take off my heatsink fan to easily access the other two sticks).
Any suggestions?

I didn't find the right solution from the internet.

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Thank you

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