RAM conundrum

dtokez

dtokez

dtokez

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10 Jan 2009
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Hi all.

Just got a new motherboard installed - its a Asus Z97 pro gamer on a 4690k.

I have been running 16gb of Kingston hyper x beast ram (khx24c11t3k2/8x) at 2400mhz (native) on my last mobo via XMP.

I have tried this on the new mobo but it wont boot at anything higher than 1600mhz :(

I tried it with 2x4GB however and that does run at 2400mhz

Other than selling the ram I can understand that I have a 2 options:
1) Run the full 16GB at 1600mhz
2) Run 8GB at 2400mhz

My system is mainly used for video / photo editing with some very occasional gaming - what do you guys think I would be better off doing?
 
Someone here seems to be having a similar issue with the same brand of RAM. If you're running the latest BIOS it may be incompatible RAM. If that's the case it may be worth selling and getting a different set from the compatible list here

If it were me I'd want it running full speed - not so much because I'd notice a difference, but because I paid for speed damnit! :D
 
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BIOS is up to date guys.

I guess I will sell it on eventually, but in the meantime what am I best off doing, 8gb and fast or 16gb and slow? Cheers :)
 
I have problems with 16GB (2x8) Hyper X savage 2400 on an Asus z77 gene. It didn't like running at 2400, I did get it stable after a BIOS reset, but then after messing with the CPU clocks I lost the stability again... in the end I left it at 1600mhz.

So I vote to run the full 16GB at 1600mhz. As far as I am aware 2400mhz doesn't make a difference in most cases.
I can understand that you would want to run it at the highest rated speed, but since you already have them and they work why waste the money?
 
stulid said:
Add more system agent/memory controller voltage.
Click to expand...

More than 1.65v stu?

eyezpy said:
I have problems with 16GB (2x8) Hyper X savage 2400 on an Asus z77 gene. It didn't like running at 2400, I did get it stable after a BIOS reset, but then after messing with the CPU clocks I lost the stability again... in the end I left it at 1600mhz.

So I vote to run the full 16GB at 1600mhz. As far as I am aware 2400mhz doesn't make a difference in most cases.
I can understand that you would want to run it at the highest rated speed, but since you already have them and they work why waste the money?
Click to expand...

Yeah I agree, can't be arsed to sell them right now. Will do eventually. So you reckon 16 over 8gb will be more benficial than the extra speed mate?
 
Thats dram voltage you've mentioned.

Its the memory controller for the cpu you want to increase (certainly wont be as high as 1.65v) not sure what asus call it in their BIOS
 
Support lists in my experience are never very upto date. I've used 3 different memory kits on the board in sig. None of which where listed as compatible.
 
Cheers, I might look into that a bit more then.

But for now, the general consensus seems to suggest I will see more benefit from 16gb @1600mhz than I would 8gb @ 2400mhz?
 
I've got 2400 Savage 11-13-14-33- 1t running @ 10-12-13-30-313-1t on Gigabyte Z97X Gaming 5.

It looks like its agreed SA (system agent) is memory controller voltage. Its set to a higher level when using XMP. I've been using XMP then tweaking the timing.

As u can see in this guide:
http://www.overclockers.com/forums/...-HyperX-Savage-2x4GB-2400-CL11-HX324C11SRK2-8
Aida 64 will tell you what the XMP profile sets the System Agent voltage to (look at the screenshot). As in the above post try manually setting system agent to 1.35v (which seems the default for 2400Mhz).


I heard that beast overclocked better than savage. 4 DIMMs vs 2 DIMMs puts a bigger load on the memory controller and your old board may have had better auto settings for running 4 DIMMs.
 
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