Corsair vengeance only running at 1333mhz max.

Tjorhunter · Jan 3, 2014

Hey,

I've been trying to get my 8gb dual channel memory running at 1600mhz for a while now, but no matter what I do it only runs at 1333mhz max.

I have them running in the correct slots for dual channel in my Gigabyte D3H motherboard and have the Xmp at profile 1 in bios, and have changed the DRAM voltage to 1.55v instead of the default 1.50v.

Is there anything that I can do to make my memory run at 1600mhz? I'm really lost at what to do now. I really have tried everything I could think of.

Specs:
- i5-4670k
- Noctua NH-U14s
- Gigabyte GA-Z87X-D3H
- Windows 7 Home Premium SP1
- 8GB Corsair Vengeance DDR3-1600
- MSI GTX770 Lightning Twin Frozr IV
- Kingston SSDnow 120gb
- Seagate Barracuda 2TB
- OCZ 650W ATX12v Bronze
- Fractal Design Define R4 Case

RCguitarist · Jan 3, 2014

Where is it telling you that it is only running at 1333?

Tjorhunter · Jan 3, 2014

667mhz max memory bandwidth in the SPD tab of CPU-z

RCguitarist · Jan 3, 2014

Check the label on your actual ram sticks to make sure you didn't get shipped the wrong speed of ram.

Tjorhunter · Jan 3, 2014

They're 1600mhz ram, they're just default at 1333mhz.

RCguitarist · Jan 3, 2014

Tjorhunter :

Is your bios detecting them as 1600mhz?

Tjorhunter · Jan 3, 2014

Yeah, but whenever I get into windows it's back to 1333mhz

madcap42 · Jan 3, 2014

Tjorhunter :

when leaving bios you have to save and exit

Tradesman1 · Jan 3, 2014

Go into BIOS, enable XMP and should be good at 1600

Tjorhunter · Jan 3, 2014

I've done that, even reset the BIOS to see if that would help. I've tried loads of things to get it running at 1600mhz but nothing works. I think someone will have to think outside the box to help me here, I've tried all the common fixes.

Tradesman1 · Jan 3, 2014

If you've enabled XMP and they are dropping, make sure you have the latest BIOS and can try the sticks in a different rig or borrow some other sticks to try in yours, but sounding like possibly a bad mobo or MC (memory controller) in the CPU

Tjorhunter · Jan 3, 2014

Yeah, I think my problem is the latter (Bad mobo or MC). I guess I'm going to have to keep the memory at 1333mhz if this is the case. Not that 1333mhz>1600mhz is a massive difference, I just would of liked it running at the speed advertised with the memory.

If anyone has any other solutions that I'm still missing that would be great.

Tradesman1 · Jan 3, 2014

Don't blame you on wanting them to run at what they should - might try setting XMP and selecting profile 1 again and raising the DRAM voltage + 0.06 - just to see

Pierre_Dolphin · Jul 24, 2014

If this isn't too late, i just found the solution. I use a sabertooth z97 mark 2 with 2x8 gb of corsair ram at 1866 mhz. At first the bios showed that the ram was 1300 mhz, but all i did is i went into EZ mode and change the performance mode on the top right corner from normal to ASUS whatever... the highest performance one. Then i rebooted and my ram was set to 1866 mhz automatically. I don't know why the bios was designed in this nonsense way but at least there is an easy way around it. Hope this helps anyone that is getting the same issue.

On a side note, the ASUS bios also has a setting that adds a 3 second waiting time by default. It is not disabled even if you enabled fast boot. The only way to get rid of it is to go into advanced mode, then booting, then scrol down until you find the setting showing 3 seconds. Change that into 0 and your boot time is now magically 3 seconds faster.

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Corsair vengeance only running at 1333mhz max.

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