Is it HyperX CL8 or CL9?

[veo]

I recently purchased a core i5-750 desktop from CyberPowerPC. Side Note: For those considering CyberPowerPC, while the computer is running well and is built well, DO NOT pay extra for their overclocking --- as they seem to only increase the b-clock and probably do not have the expertise for a stable overclock.

In any case, I purchased 4GB of Kingston HyperX 1600mhz memory. However, I cannot easily tell if the HyperX memory is CL8 or CL9? Since I have a core i5 (w/ Gigabyte UD3 mb) the memory is naturally lowered to run at 1333mhz.

I have CPU-Z and it states that CL is at 9. In fact, CPU-Z shows 9-9-9-24. But, again, this is at 1333mhz. The voltage is at 1.5v --- which is also the JEDEC standard for both CL8 and CL9 versions. So, is there any easy way for me to determine if this HyperX memory is CL8 or CL9? I plan on overclocking the desktop myself down the road and the optimal settings for CL8 and CL9 are different.

If I had to guess I would say the HyperX memory is CL9 --- because it seems to be cheaper and more available in the online marketplace. And CyperPowerPC would naturally gravitate to the cheaper version (which I am fine with since they offer low prices on their rigs).

I am in no hurry so please reply at your leisure. And thanks in advance to TH and the TH forum community; I've learned so much from this amazing resource.

 

[chefboyeb]

Try running memory at recommended speed, CL, overall timing, and voltage and see if it does run stablely...

 

[veo]

So basically if I set the memory to CL8 settings (8-8-8-24, at 1.65v, and at 1600mhz) and it runs stably (it boots and OS runs as normal) --- then it is CL8?

Is there any other way to determine if it is CL8 or CL9 --- i.e. will it say on the memory itself?

 

[chefboyeb]

I should say so on the sticks themselves or the package they came in... They normally state the speed, timing and recommended voltages on each stick and overall package...

 

[JackNaylorPE]

There's usually a sticker on the memory that tells you what it is. What about your invoice ?

 

[veo]

Thanks Chef and JackNaylor! I'll check the physical memory sticks the next time I open the case.

Unfortunately, the invoice (from CyberPowerPC) does not state the CL speed. And, since its from CyberPowerPC, there's no box or documentation (just a generic install guide from Kingston). However, I did check for the Kingston and HyperX icon/symbols when I first got (and opened) the rig. Plus CPU-Z recognizes the memory as Kingston (so I'm confident it is not counterfeit).

I will take a closer inspection of the memory sticks to see their CL number the next time I open the case. Thanks again!

PS - I'm not sure how to close this thread/topic. But I do consider this question now answered/closed.

 

[veo]

Best answer selected by veo.