RAM Upgrade....

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thehstrybean

Diamond Member
Oct 25, 2004
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OK: I need to upgrade my RAM...Currently, I have a 512mb stick of Corsair XMS PC2700...I'm running a socket 754 board...So I understand that s754 doesn't support dual channel, but this summer I'm going for this board (MSI "RS480M2-IL" ATI Radeon XPRESS 200 Chipset) or this board (FOXCONN "NF4K8MC-ERS" NVIDIA nForce4 Chipset)....Socket 939 does support dual channel, so I figured I would go ahead and get a pair and be one up for the summer...The question is, which RAM? I'm looking at the Corsair XMS TwinX1024-3200C2PT or the Patriot PDC1G3200LLK...Which of these looks best, or is there another? i don't understand the latency crap..Is it better to have high or low? Also, go on and throw out your opinion on boards...which of those two looks best? It has to be mATX because I'm using the Aria...Thanks guys (and gals...)!
 
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ribbon13

Diamond Member
Feb 1, 2005
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The lower the better.
2-2-2-5 is the fastest. 3-4-4-11 is really slow.

I would reccomend the Patriot. Also note that you can't run 3 DIMMs with 939s. And if you run 4 dimms with current CPUss the memory will revert to 2T command rate. 3-4-4-11-1T is faster than 2-2-2-5-2T. So if you ever want more than a gig of ram get 1024mb sticks.
 
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SrGuapo

Golden Member
Nov 27, 2004
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Low latency is better, but overkill for most people. CAS 2.5 will not perform horribly worse than CAS2 in games (maybe a 1-2% decrease). It would also save you almost $70 from that corsair. that could be use to upgrade your video card, which will improve FPS much more.

That PDP RAM is a petty good deal. If you don't mind spending $30 more tha the value RAM, it is definately worth it... The PDP has better timings and is considerably cheaper than the corsair. Also, it looks like you may have a chance of getting some TCCD chips (some of the best RAM, good OCer). If not, it is still great RAM for the price. I paid that muh for my mushkin 2.5-3-3 2 months ago o_0...
 
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thehstrybean

Diamond Member
Oct 25, 2004
5,727
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Can you use registered RAM with the Athlon 64? Wait, better question: what's the difference with registered/unregistered? Also, TCCD chips are the chips on the RAM, correct? Does Corsair and Patriot have them?
 
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ribbon13

Diamond Member
Feb 1, 2005
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Registered ram can be used with K8s.... specifically Opterons.

from another post.

Originally posted by: Zebo
Nothing black magic about it. Remember Opteron only needs only registerd not ECC ram. The only purpose of registerd ram is to solve clock issues with the long traces. Notice this board only has two dimms per processor and I'd imagine is to solve the issue by having both short and good trace design so the data comes in at high enough signal so opteron does'nt know you're even using unbuffered.. Opteron's memory controller won't be able to tell if the dimm buffered it for a cycle or not. Registered is exactly like unregistered memory but buffers a request in its register as a stability enhancing measure before sending it. The pins, protocol and data are all the same. And I bet ABIT has worked it out to leave Operon clueless as to what you're using..Well hope actually.
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