RAM speed issues

[Zipppy]

I'm having a bit of an issue with setting the memory speed on my motherboard, (ASUS Sabertooth 990FX). According to the manual, my memory sticks are completely compatible, and setting it on automatic forces them to go 1333 MHz instead of the intended 1866 MHz. Setting them manually any other speed than 1333 (with the proper timing) makes the system refuse to boot, the PC shuts off just as the UEFI BIOS screen shows up.

For the record, the memory kit I'm using is Corsair's CMZ8GX3M2A1866C9 kit, which is part of their Vengeance line.

If anyone has any idea on how this can be fixed, please post.

[SeanProdTV]

Goto bios , goto clocking tab , and set the speed of ram ._.

[GT4tube]

What your CPU? i think your CPU is limit 1333mhz auto. I same here.

[Zipppy]

My CPU is an AMD FX 8350, I've been reading it should work.

[FR4NOx]

(2013-12-18 09:23)GT4 Wrote:  What your CPU? i think your CPU is limit 1333mhz auto. I same here.

My FX-6300 ran 1600MHz ram perfectly fine. The FX series officially supports 1866MHz. I think his motherboard supports up to 2133MHz if you set it up properly. Just throwing that out there.

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Certainly seems like it's on the motherboard's end, but I'm not sure how to help. Have you googled around for any solutions?

[SO•Audiojack]

Have you updated your BIOS to the latest version?

[Zipppy]

yes, everything is on the latest version, setting the XMP profile in the bios does the same result as manually setting it.

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The only way I could see this working at the moment is overclocking the FSB, but I don't feel like doing a lot of it.

[◄Chuck►]

Download that: http://www.cpuid.com/downloads/cpu-z/1.67-en.zip
and show the output from the SPD page.

As shown here:
http://www.hardwareluxx.de/community/ima...ir_SPD.png


(src: http://www.cpuid.com/softwares/cpu-z.html )

[Zipppy]

I've tried these settings, and the computer doesn't seem to like it.

[SLiiDE]

(2013-12-19 12:16)Zipppy Wrote:  I've tried these settings, and the computer doesn't seem to like it.

Dont forget if you have your ram in Duel Channel, the Mhz indicated will be half. This is what mine looks like in 1600mhz

[Zipppy]

yeah, mine's dual channel, but the PC isn't accepting any changes to the default.

[Zipppy]

Bump, tried again with the procedure in the manual, no luck.

[FR4NOx]

Maybe it's just defective?

Contact Corsair and/or ASUS.

[Zipppy]

Only thing I haven't tried is to add extra voltage, something apparently needed.