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|18th January 2009, 10:57||#1|
Join Date: Nov 2004
Asus Rampage II Extreme X58 Overclocking Test
Currently working on an X58 motherboard round-up and yesterday I had the time to test the overclockability of the rampage 2 extreme.
I didn't go for the excessive voltage results as I'm still on stock air cooling (awaiting mounting bracket from Noctua).
221MHz is no problem, even on stock voltages. Haven't been able to surpass the 222MHz barrier, which seems to be a chipset/motherboard related problem. Officially, manufacturers tell users that going beyond 222MHz bclk is a nogo, as the chipset is somehow limited to that frequency. Recently, more and more motherboards pop up, though, that give you the chance to break the limit and hit 230-235MHz!
Of course, overclocking the memory is limited to the memory chips, as the maximum frequency varies from kit to kit. However, certain motherboards can make your memory overclock just a tad higher.
Ironically, CL9 clocks much worse
Elevated voltages (1.45/1.85v):
Note: when I did the same tests on the Intel DX58SO motherboard, I only achieved:
Althought the benchmarks (and thus request for stability) is different, I can tell you that even with 1.95v, I could not run 1M above 1GHz CL9.
Kudos for the R2E, in other words
Using stock voltages (1.15v/1.8v pll) I found no difference between HT-on and HT-off overclocking:
Using a slightly higher voltage (1.2v/1.89v pll), there was a difference of 75Mhz between enabling and disabling HT.
To be honest, I'm quite impressed by this cpu: I'm closing in on 4GHz on stock air cooling using only 1.224v. TO BE CONTINUED
Fastest 4M run using stock voltages:
Fastest 4M run using elevated voltages:
Fastest 1M using elevated voltages:
995MHz 3Dmark06 stable:
When the Noctua mounting bracket arrives, I'll continue with more extensive testing.
Last edited by Massman : 18th January 2009 at 11:01.
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