2400Mhz RAM on ASUS H97-PLUS?

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Daniel Schneider

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Aug 7, 2014
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Hi there. I've just registered here and this is my first thread. I've read the rules, but please correct me if I've made any mistake. =)

So, I've got this machine on my signature and I wonder if 'll have to use my RAM at 1600Mhz or if I can make them run at their native 2400Mhz. I've tried to change these specs at the BIOS (which is updated with the latest version), but it just fails to boot and then says the "overclock failed". I'm sorry about my limited knowledge, but why is it considered an overclock? The manual says the memory will run at 1600Mhz if I use XMP, but doesn't say anything about not using it (I've tried both). With XMP the latencies are automatically set to their natives (10-12-12-31-2N) and without it (on auto), they're set to 11-11-11-28-1. I also tried seting each latency manually, but got nothing.

So, is it possible to make the memory run at 2400Mhz with this system? Or at least get lower latency? What would be your recommendation for best stable performance (preferably with no overclocking for me)?

Thank you all in advance! o/

***My system, just in case:
ASUS H97-PLUS with Core i5-4590
2x4Gb G.Skill TridentX 2400Mhz CL10 (F3-2400C10D-8GTX) on Dual Channel
---
 
Solution
chris987
http://www.techpowerup.com/202196/asus-enables-overclocking-on-h97-h87-b85-and-h81-series-motherboards.html
you dont have an unlokcked (k) cpu so you will still not be able to. you wont be abe to run the memory at 2400mhz. however setting memory voltage at 1.65 / 1600mhz you will be able to run cl9 or even lower.!
try 9-9-9-24-2n . test with http://www.memtest.org/ and http://files.extremeoverclocking.com/file.php?f=205 . if stable try by lowering one number at a time beginning with the first but dont change 2n
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chris987

chris987

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Jun 10, 2013
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No, cause you need an unlocked and overclocked cpu to run such high speed ram and have a Z mobo!

http://www.asus.com/Motherboards/H97PLUS/specifications/

''4 x DIMM, Max. 32GB, DDR3 1600/1333 MHz Non-ECC, Un-buffered Memory *
Dual Channel Memory Architecture
Supports Intel® Extreme Memory Profile (XMP)
* Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).
* Due to Intel® chipset limitation, DDR3 1600 MHz and higher memory modules on XMP mode will run at the maximum transfer rate of DDR3 1600 Mhz.''

you can make it run at 1600mhz and lower cl timming though, which you will have to manually set!

http://www.gskill.com/en/product/f3-2400c10d-8gtx gskill states SPD speed 1600mhz 1.5v . it should be able to run lower than cl10 even on 1.5v . there isn a chance though it will need 1.65v to run at lower cl than cl10 and since you cannot manually set voltage you are stuck with 10-12-12-31-2n :(
 
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Daniel Schneider

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Aug 7, 2014
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Thank you for your attention, chris987! So, here are my new thoughts:
1. If I got it right, the stock RAM frequency for the processor internal controller would be 1600Mhz, so, even if the memory's native clock is 2400Mhz, it would be considered an overclock for the processor. It makes sense. Is that it?
2. If so, is it imperative that I had a class Z chipset (in my case, the Z97)? I thought the H97 would still allow me some tweaks, then here comes my next question:

If the H97 chipset wasn't supposed to allow me such overclock, why would the BIOS have the overclocking options I can choose? I understand the XMP limitation, but if I put it on auto or manual on the BIOS, I have the option to choose the memory clock at 2400Mhz (or even up to 3400Mhz), and I can even change each latency and the voltage too. So, doesn't this mean I should be able to run the memory at 2400Mhz?

I'm sorry if I'm missing a point, but it just didn't make sense yet, heheh.. And thanks again. o/
 
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Daniel Schneider

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Aug 7, 2014
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No, I haven't tried that yet. I was hoping for some guidance since this would be the first time I'd overclock. From what I've read online, the ideal would be to increase the clock, so that's why I asked the question this way. After reading my latest thoughts, you'd still say it's not possible? I confess the availability of those options makes me confuse about this possibility, but you guys are the experts, so... If it isn't possible afterall, I guess I'll have to try lowering the latency anyway. In this case, any suggestions for the latency values?
 
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chris987

chris987

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Jun 10, 2013
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http://www.techpowerup.com/202196/asus-enables-overclocking-on-h97-h87-b85-and-h81-series-motherboards.html
you dont have an unlokcked (k) cpu so you will still not be able to. you wont be abe to run the memory at 2400mhz. however setting memory voltage at 1.65 / 1600mhz you will be able to run cl9 or even lower.!
try 9-9-9-24-2n . test with http://www.memtest.org/ and http://files.extremeoverclocking.com/file.php?f=205 . if stable try by lowering one number at a time beginning with the first but dont change 2n
 
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Solution
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Daniel Schneider

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Aug 7, 2014
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Oh, I see now. Only thing I still find weird is the fact that those frequency options are still available, even if my processor is a "new 4th generation". But anyway... Earlier today I tried many combinations and came with one that seems good: 1600Mhz (since I couldn't go further) with latencies at 7-8-8-24-2n and voltage at 1.5V. I ran Windows Memory Check, Memtest86+ and HCI Memtest successfuly. I guess I'll finish with Prime95 now, just in case. The other options on the BIOS I left on "auto". Would that be good?

Once again, thank you for your attention! o/
 
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Daniel Schneider

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Aug 7, 2014
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Indeed, it passed Prime95 as well last night. Might even go further, but I won't. I'm pretty satisfied by now. :D

Next step: try to adjust my old ASUS Silent Knight into the LGA 1150 cooler socket. This Intel stock heatsink makes too much noise when CPU temperatures increase (like the limit 100°C they reached with Prime95)... ;)

Cheers! o/
 
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