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P55 rated ram with AMD 890fx?

post #1 of 8
Thread Starter 
I picked up 8g 2x4 ddr3 1600 today, but when They gave me the package I noticed it said "designed for Intel p55 platforms." The sales rep (of coarse) told me it would still run with a AMD setup.

I have noticed Memory claiming to be perfect for p55, and some for AMD.
Does it even matter? its all 240pin DDR3...

From what I gather, its all about power (volts).

Here is my ram
http://www.newegg.com/Product/Produc...=px538g1600llk

Will this run well with 890fx and 1055t
here is my mobo
http://www.newegg.com/Product/Produc...90fx%20deluxe3
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post #2 of 8
It doesn't matter. Just marketing hype.

However, this ram is cheaper and better. Keep in mind even though it's CAS 9 it's only rated at 1.5v instead of like 1.65v like you picked. If you ever so slightly increase the voltage I'm sure you will hit those timings and even be able to clock them better than that, all for $30 less.
Edited by Dopamin3 - 1/4/11 at 12:31am
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post #3 of 8
Thread Starter 
Quote:
Originally Posted by Dopamin3 View Post
It doesn't matter. Just marketing hype.

However, this ram is cheaper and better. Keep in mind even though it's CAS 9 it's only rated at 1.5v instead of like 1.65v like you picked. If you ever so slightly increase the voltage I'm sure you will hit those timings and even be able to clock them better than that, all for $30 less.
I get it now, you sorta answered my question/led me to the answer.
AMD likes more like 1.65-1.8
intell likes more like 1.5-1.65

because the patriot is rated for 1.65 I should be fine.
It was on sale locally for 119$
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post #4 of 8
A bit of a cliche term but RAM is RAM; the P55-compatible thing is either a marketing scam or refers to the 1.65V voltage maximum, which is not important on AMD.
AMD will work with above 1.65V, but doesn't necessarily prefer it.
8-9-8 at 1600Mhz will probably not make a difference vs 9-9-9; the weaker 9-9-9 RAM probably uses the same ICs and can reach 8-9-8 anyway. Another alternative would be G.Skill Ripjaws 1600 9-9-9 1.5V.
post #5 of 8
Quote:
Originally Posted by cayennemist View Post
I get it now, you sorta answered my question/led me to the answer.
AMD likes more like 1.65-1.8
intell likes more like 1.5-1.65

because the patriot is rated for 1.65 I should be fine.
It was on sale locally for 119$
Neither platform likes more voltage, you're just getting a better kit if you can mind the rebate. The 1.65v limit on Intel is BS, you can run ± .5v of your VTT voltage, allowing for a "safe" max of 1.85v considering Intel tells us to run only 1.35v on the VTT.

Here is another kit that is both cheaper and better, regardless of platform. I don't see why you want the Patriots considering both have lifetime warranties, G.Skill is cheaper, and will clock better.
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post #6 of 8
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Its not that I prefer the Patriot, I just got a deal on it so I was wondering if it would do OK with my mobo. And after seeing all the "Made for p55" stickers I was just wondering if it made any difference. You guys answered my questions thanks for the help.

I cant return these because I don't have any other ddr3 to run my system, but I might replace/upgrade to the rip jaws
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post #7 of 8
your gonna want to go with tighter timings like cas 6 or 7 with amd. you could even go with some 2000mhz cas 8 or cas 7 with that thuban.
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post #8 of 8
I currently run Corsair Dominator in my AMD setup, and the RAM is marketed for Intel systems; complete with Intel blue (royal blue?) paint. Considering the 890FX is a robust chipset, and most of those boards allow adjustment of virtually every parameter of the RAM, marketing schema is pointless, even if it does have some "secret" timings that work better for an Intel system.
What I tend to reference, however, would be the QVL on a vendor list; more specifically the modules used, and not the kit. If the modules are listed as compatible, I feel more comfortable with a given stick in my board's DIMM.
From my experience, (which has been since the Athlon XP days) an AMD system works best with very tight timings and lower command rate. However, 2T command rate has been fairly standard with 4 DIMMs occupied since the Athlon 64 days. That is not to say 1T isn't possible, but it's far more dependent on the memory controller in each CPU. With that in mind, go for a reasonable voltage (I try to stick 1.65V or lower), tight timings, and if you absolutely don't need 8 GB, just use 2 sticks. Timings of 9 are too high. 8 is ok, but a 1T command rate will really help that out. 7 timings are good, and if you can get it down to 6, that's excellent. If you can do that with 1T CR...it's about as good as it gets there. Yes, there is more bandwidth with higher speeds and looser timings, but there is plenty of bandwidth with DDR3 1600...just make it run tight timings, and the chip will use it well.
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