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Overclocking my 1600 ram higher than 1854

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January 6, 2011 1:33:28 AM

OK guys, so I have 1600 Kingmax DD3 with XMP support, and so far I successfully overclock it to 1854 mhZ . Memtest said no errors and I successfully ran Prime95 and OCCT for 6 hours without any issues. I want to go up to 2000 but so far I cannot. My PC stuck on check cpu or checking dram on lcd poster. So any suggestions or I reached the limit of the ram?
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Voltages:

CPU: 1.22v
QPI/DRAM: 1.34v
DRAM BUS: 1.64v

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My configuration:

Asus Rampage II Extreme X58 LGA 1366
Intel i7 920 2.66
V10 Cooler Master TEC Cooling system
6 GB DDR3 Kingmax 1600 XMP module
150 GB Western Digital Raptor
1 TB Samsung Sata 32 MB Cache
500 GB WD Sata 32 MB cache
Galaxy 9800 GT 1GDDr3 low power (OC’ to 648/1620/1053)
LG DVD/RW
Cooler Master HAF 922;
Cooler Master PSU silent pro M 1000W
Ups Mustek 1000W
Samsung T220 monitor

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a b } Memory
a c 100 K Overclocking
January 6, 2011 2:11:05 PM

Higher timings, more voltage. Good luck.
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a b } Memory
a c 100 K Overclocking
January 6, 2011 3:01:01 PM

Quote:
^
VTEC...!
I'm the owner of a H22 95' Accord with Jackson Racing supercharger 341hp @ wheels.
Keeping the card till I die.
http://hondashowoff.com


Haha sweet man. My last car was a JDM H22A 92 Prelude, but now I'm in an 02 RSX-S :D 

Would love to supercharge :D 
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January 6, 2011 4:38:20 PM

Overclocking and cars, what a combination :D . Anyway, Wolfram23, I can't go higher than 1.65v, because is to risky for the cpu :S. I am satisfied with 1854 :) 
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January 6, 2011 5:07:13 PM

Quote:
your not going to notice anymore of a difference anyways...
1854 is a sick clock.!



I agree totally. There is no real difference, except in benchmarking.
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a b } Memory
a c 100 K Overclocking
January 6, 2011 6:21:32 PM

Yeah I know 1.65V is the max, I'm just saying if you want to go higher, that's your option lol.

Curious what timings are you at? And what are the stock timings?

EDIT: Oh and what do you use to bench your RAM? The only thing I've found in the past is Everest but it doesn't really give you a proper bench mark IMO. I've seen the full version of Vantage has it too, but my copy (with the CPU and GPU tests) doesn't allow that - I got my copy free with my RAM.
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January 6, 2011 6:36:15 PM

wolfram23 said:
Yeah I know 1.65V is the max, I'm just saying if you want to go higher, that's your option lol.

Curious what timings are you at? And what are the stock timings?

EDIT: Oh and what do you use to bench your RAM? The only thing I've found in the past is Everest but it doesn't really give you a proper bench mark IMO. I've seen the full version of Vantage has it too, but my copy (with the CPU and GPU tests) doesn't allow that - I got my copy free with my RAM.


My timings are:

1055-8-8-8-20 1N-1.51v

1600 XMP 9-9-9-28 1N-1.51v

1854 OC'-9-9-9-24 2N-1.64v

I use Aida64 for benchmarking , along with Vantage and 3dmark Professional 06. For testing stability I used Prime95, OCCT, Memtest and sometimes Intel Burn Test V2.
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a b } Memory
a c 100 K Overclocking
January 6, 2011 6:51:25 PM

Ah ok. I'll have to check those out. I've been meaning to bench different RAM speeds to once and for all figure out if my theory is right or wrong (and how wrong).

(my) Theory is that lower speeds at faster timings can be as fast as higher speeds and higher timings... but maybe not. I have ran my RAM at 1800 CL9 before, currently running 1418 CL7, it's rated for 1600 CL8 so it's quite similar to your RAM. But I've never been able to definitively prove what the difference is between speeds.
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January 7, 2011 2:05:34 AM

wolfram23 said:
Ah ok. I'll have to check those out. I've been meaning to bench different RAM speeds to once and for all figure out if my theory is right or wrong (and how wrong).

(my) Theory is that lower speeds at faster timings can be as fast as higher speeds and higher timings... but maybe not. I have ran my RAM at 1800 CL9 before, currently running 1418 CL7, it's rated for 1600 CL8 so it's quite similar to your RAM. But I've never been able to definitively prove what the difference is between speeds.


Well you got a point there, but I think that lower timings improves the latency time of the ram, and higher frequency allows faster time in processing more complex operations(graphics, 3-d design for example). I think that you are right also, but for specific type of operations that do not require more "horse power", but we can test this to see what will happen, and we can benefit from that :D . Just to find good benchmarking program for testing...
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January 8, 2011 12:17:42 AM

Update:

Guys you are not going to belive this, but I just OC' my RAM to 2005 mhZ :D . I listen to Wolfram23 and went with higher timings and guess what...It worked yeee. Tomorow I am going to stress the ram to check the stability just to be on the safe side. I will post update tomorow.

P.S Timings are:

10-10-10-31 3N(Tomorrow I will check the limit of the timings, maybe I can go lower)
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a b } Memory
a c 100 K Overclocking
January 10, 2011 2:12:30 PM

That sounds about right. Can you post the results of your benchmarks as far as the difference between 1600, 1800, and 2000mhz?
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January 10, 2011 10:12:09 PM

wolfram23 said:
That sounds about right. Can you post the results of your benchmarks as far as the difference between 1600, 1800, and 2000mhz?


Ok, so I tested the ram and here are the results:

1600 XMP-1.51v


Memory Read-16453 MB/s

Memory Write-13349 MB/s

Memory Copy-17888 MB/s

Latency-52.5 N/S

1854 OC'-1.64v

Memory Read-19023 MB/s

Memory Write-16118 MB/s

Memory Copy-22464 MB/s

Latency-46.0 N/S

2005 OC'-1.65v

Memory Read
-20013 MB/s

Memory Write-17403 MB/s

Memory Copy-23029 MB/s

Latency-44.5 N/S

I found the lowest stable timing for 2006 mhZ 9-10-9-31 3N

P.s Here are results from Vantage and 3DMark 06:

PC-3.7 Ghz RAM-1854-Vantage score 4443 3DMark score 6373

PC-4.05 Ghz RAM-2005 Vantage score 4450 3DMark score 6403
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a b } Memory
a c 100 K Overclocking
January 11, 2011 1:59:05 AM

Wow, really awesome results! Thanks for posting that. Just out of curiosity what program did you use to do it? Aida64?
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January 12, 2011 1:43:11 AM

wolfram23 said:
Wow, really awesome results! Thanks for posting that. Just out of curiosity what program did you use to do it? Aida64?


Yes I used Aida64 Extreme Edition.
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January 15, 2011 12:36:30 AM

Best answer selected by spike15_mk.
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