2000MHz Ram On AMD Phenom II X6 1090T & 890FXA-UD5

[Slappa]

Hey guys,

recently been tuning and playing around with my ram at 2000MHz on my AMD hardware. Here's one of my 32m stable resuts:

http://slappablog.wordpress.com/201...n-amd-w-phenom-ii-x6-1090t-890fxa-ud5-part-3/

 

[Nemesis 1]

Didn't IDC warn you about those links. I think he did. Nice AMD results tho .

 

[Slappa]

Didn't IDC warn you about those links. I think he did. Nice AMD results tho .

Thanks. Yeah links have been removed. sorry :$

 

[BD231]

Damn you! ...., I've got DDR3 2000/AMD 770 and for the life of me I can't get past 1600.

Good to know, x6 + 890 chipset = ddr3 2000.

 

[Slappa]

Damn you! ...., I've got DDR3 2000/AMD 770 and for the life of me I can't get past 1600.

Good to know, x6 + 890 chipset = ddr3 2000.

Any quad or tri core chip on any board prior to the new 890FX revisions = no go for anything past 1800. It's possible, but you have to be a very thorough ram tweaker. It just causes a big headache.

 

[xd_1771]

This is why I usually recommend 1600Mhz low timings to most AMD users; it's very hard and requires a lot of tweaking to stabilize 2000Mhz on most AMD platforms - especially at low timings such as yours, Slappa
Most 2000Mhz RAM still sells with 9-9-9-24 timings. 1600 CAS6-7 RAM will match that easily on an AMD platform, and would be much easier to stabilize. If you have 4 sticks (i.e. 8GB), stabilizing 2000Mhz becomes near-impossible.

Saw your recent guide on RAM OC-ing on OCN lately. I'm thoroughly impressed

 

[busydude]

Nice OC there Slappa. There was a superpi challenge thread not so long ago and..

1st run, no tweaks, Win 7 64-bit:

Makes me think about the superpi times :hmm:. Memory speed Vs CPU clock?

 

[xd_1771]

Actually I think single-threaded CPU clock is what matters the most.
I've also gotten SuperPi 32M scores better than Slappa using similar settings to the one above (1620Mhz 6-8-6-20)
MaxxMem or EVEREST would be best for benchmarking RAM directly. 32M is a good stability tester though.

 

[Slappa]

I wasn't going for times here.

SuperPi is very dependent on the cpu, especially in 1m. Essentially, if your cpu is faster, you'll beat whatever ram speed someone may have.

32m is purely just to stability test a ram overclock on this run.

Superpi times come into play later when I throw all my overclocks together (cpu, ram, NB)

 

[Blitzvogel]

Very nice. I can't even get the 1600 MHz OC setting on my MSI mobo to work with 1600 MHz spec DDR3.

 

[Slappa]

Very nice. I can't even get the 1600 MHz OC setting on my MSI mobo to work with 1600 MHz spec DDR3.

A tip on that would be to not use the 8.00x ram divider. Also, what cpu+motherboard are you using?

The Phenom II X4's have an older IMC revision that hinders frequency overclocks. However it overclocks better suited to lower frequencies and tighter timings. The new X6 chips however, have a new IMC that allow 2000MHz+ . They changed a lot of things around on AMD.