Memory overclocking failure

Swifty · 13 Feb 2015

Hey guys haven't been around in awhile, Just bought some new corsair vengeance 16GB ram coming from 8GB of Ripjaw ram,

Popped the ram in and sent me to the bios immediately, it detected it as 1333mhz instead of the 1866mhz it's advertised to run at, so I switch it from auto to x.m.p and set it to the proper speed, and saved and restarted the computer and it stated overclocking had failed and told me to shut my computer off and started back up at the 1333mhz.

Not sure what to do at this point, I'd prefer it to run at it's proper speeds.

Motherboard is Asus P8H77-VLE

Thanks!

Layback Bear · 13 Feb 2015

Stop using XMP
Set your ram speed to 1866 and the proper listed volts. Save and boot.

Swifty · 13 Feb 2015

Layback Bear said:

Stop using XMP
Set your ram speed to 1866 and the proper listed volts. Save and boot.

Doesn't matter what it is on, still sets to 1333mhz, it wasn't on xmp as default it still refused to accept it.

Layback Bear · 13 Feb 2015

Could be your cpu holding you back. You could try 1600.

ARK | Intel® Coreâ

Max Memory Size (dependent on memory type) 32 GB Memory Types DDR3-1066/1333 Max # of Memory Channels 2 Max Memory Bandwidth 21 GB/s ECC Memory Supported ‡

No

Swifty · 14 Feb 2015

Layback Bear said:

Could be your cpu holding you back. You could try 1600.

ARK | Intel® Coreâ

Max Memory Size (dependent on memory type) 32 GB Memory Types DDR3-1066/1333 Max # of Memory Channels 2 Max Memory Bandwidth 21 GB/s ECC Memory Supported ‡

No

That solves that, until I get a new processor ill be riding the 1333mhz thanks for that!

GeneO · 14 Feb 2015

Layback Bear said:

Could be your cpu holding you back. You could try 1600.

ARK | Intel® Coreâ

Max Memory Size (dependent on memory type) 32 GB Memory Types DDR3-1066/1333 Max # of Memory Channels 2 Max Memory Bandwidth 21 GB/s ECC Memory Supported ‡

No

That Intel doesn't mean much. My i7 4770k at the Intel site says

Max Memory Size (dependent on memory type) 32 GB
Memory Types DDR3-1333/1600
Max # of Memory Channels 2
Max Memory Bandwidth 25.6 GB/s
ECC Memory Supported ‡
No

Yet I run memory at 2200 MHz and get over 32 GB/s bandwidth. That is just a guaranteed spec. A lot depends on the board. And Asus says the OP board supports XMP at their support site. In fact the manual has a qualified vendor listing that lists 1866 MHz memory.

They have a weird note:

"Due to the CPU behavior, DDR3 1866 MHz memory module will run at DDR3 1800 MHz frequency as default." Maybe that's the problem. Try setting it manually to 1800 MHz.

You could also try running it at 1600 MHz.

N00berG00ber · 14 Feb 2015

yea dont use XMP. set it manually, set the voltage correctly, and also set the correct timings. if fail again, you may have to test each stick individually.

Dude · 14 Feb 2015

Out of curiosity, why do all of you say don't use XMP? I have used it with no problems myself.

GeneO · 14 Feb 2015

Dude said:

Out of curiosity, why do all of you say don't use XMP? I have used it with no problems myself.

+=1 if the XMP meets your target speed and timings.

But it may be in this case you can't run the memory at the 1866 XMP setting.

**Pauly** · 14 Feb 2015

XMP can be problematic, in some instances it does work but I have found in general when you use XMP to up speed it also tends to increase other settings equally and this will often overvolt the ram to a bsod.
I have had a couple machines where XMP causes nothing but problems when trying to run RAM at rated speeds