Memory says 1600Hz but is running at 1333Hz

[tribalrage24]

Hi, I built a PC last year and it worked great but recently one of my ram sticks died: (http://www.tigerdirect.ca/applications/SearchTools/item-details.asp?EdpNo=40739&CatId=11478).

Both sticks were originally running at 1333MHz (when first installed), but a friend went into BIOS and changed the speed to 1600MHz and it worked fine. A year later, I recently bought a replacement stick (http://www.newegg.ca/Product/Product.aspx?Item=N82E16820231718). I just installed the stick and the memory seems to be running at 1333Hz again. I tried to speed up the RAM manually via BIOS, AI Tweaker menu, memory frequency from "Auto" to "DDR3-1600MHz". The Screen went blank and the red MEM OK LED came on. I restarted and the computer and it said "Overclock failed" so I went into BIOS and turned it back to 1333MHz.

Is there a reason my memory won't go to 1600MHz? It should, as it says on the product description "1600". Am I doing something incorrectly? Any help would be appreciated! Thanks
This is my motherboard if you're wondering: http://www.newegg.ca/Product/Product.aspx?Item=N82E16813131835&_ga=1.192337198.583610648.1433351685

 

[junkeymonkey]

maybe cause you mixed sticks and there not compatible ? its best to get memory in factory matched kits -- you may just need to fiddle with the timings to find a stable balance between them but its now all on how lucky you can get in the bios ..

even if the same brand and part # and all, bought separately they may not play well together

good luck

example
http://www.tomshardware.com/answers/id-2675931/doubts-compatibility-gskill-ram.html

 

[10tacle]

As the other person said, even if you have exact same specs of memory (timings of 9-9-9-24, 1.5v, 1600MHz), if you mix different manufacturers, there may be problems. And if you buy separately instead of in a kit even the exact same manufacturer and model, there may be just a slight enough difference in silicon manufacturing since they likely were manufactured at different periods, that it can throw things off.

Also, I just checked the ASUS's memory QVL and neither of your memory sticks are on that list for official compatibility. Generally this is not a huge issue as I have yet to come across a problem with exact memory not listed ASUS's vendor list, but crossing up memory makes, neither of which are officially supported, may be just enough to throw a monkey wrench in there (no offense to junkeymonkey, lol).

 

[junkeymonkey]

if you ask there support like this guy did heres there answer to him

Q:
I want to install more memory, in addition to my existing memory kit. What are my options?

A:
We do not recommend mixing memory kits, regardless of brand or model.

By mixing memory kits together, there may be compatibility issues such as unable to boot or unable to operate at rated specifications.

Each of our memory kit are thoroughly tested to ensure compatibility within each memory kit. And because we have not tested our memory kit with your existing memory kit, we cannot guarantee compatibility when multiple kits are used.

even if its the same brand , part number and all specs match they could of changed the memorys ic's from the time you bought yours and the ones you got today..

 

[jitpublisher]

You just broke the most important rules about buying memory, don't mix brands, speeds, timings, or voltages, you are lucky it will even boot, let alone work at extreme memory settings.

 

[Tradesman1]

Never a good idea to mix DRAM but as long as you have them, start with only the RJ X in slot one, go into BIOS and enable XMP, then raise the DRAM voltage to 1.55, save, exit shut down, add other stick in slot 3 and give it a try