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Opteron 170 or Athlon 4400? - Page 2

post #11 of 17
yep, that is exactly how it works, I just thought I'd give a couple examples.

I just recently bought a sick of DDR400 notebook SODIMM memory for my wife's laptop and installed it in her computer. However, her computer only lists that it is compatable with PC2100 or DDR266. So basically what happens is all DDR memory is backwards compatable... so you can put DDR400 in a DDR333 motherboard and the RAM will run at DDR333... If however, you choose to overclock it will give you more headroom to do so... while you will be overclocking your cpu and motherboard (fsb) your RAM won't be overclocked until you have hit the DDR400 range (fsb or htt of 200)

So, now to your situation. all A64 socket 939 motherboards support DDR400 because the htt is 200. To overclock your cpu you raise the htt... which overclocks your memory as well. This is where having DDR500 will come in handy. You are guaranteed that your memory will work at a htt of 250 where with most DDR400 you are not and it's just luck of the draw... and informed purchasing.

So, when looking at your configuration it would be good for you to get some DDR500 or some RAM that uses TCCD chips. Your motherboard can't supply more than 3.0v to the RAM so Samsung TCCD will be your best bet for RAM.

What model Corsair RAM do you have? from there we can figure out what IC's your RAM uses and give you a rough estimate about what it will do in regards to overclocking and what timings/voltages it will take to get there.

oh, and the opty 165's have been hitting about 2.8Ghz... so I would assume the 170 would be able to get about there too...

You may not be able to get the highest oc w/ that board as you will probably be limited to 1.55v for the cpu and you cannot increase voltage on the chipset... Also, you will not be able to run a 1T command rate on your RAM past a htt of 240... all that said, your board is fairly easy to OC and makes a great board to learn how to OC on. You can also get pretty decent overclocks with some patience.

I'm familar w/ that board so when you get everything together and are ready to OC let me know and I might be able to help you out.
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post #12 of 17
Thread Starter 
Thanks very much for the help guys. I have the Corsair (TWINX1024-3200C2PT) 1024MB (2 x 512MB Matched Pair), DDR400 / PC3200, non-ECC, Unbuffered, CL2, Silver Heat Spreader. I'm not sure whether the IC's are TCCD
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post #13 of 17
well very few of the 3200C2 use TCCD. the next best use TCC5, and after that they're just kinda ehh...
if you look on your sticker you can find what revision number you have... that's what you'll need to tell what specific IC's your RAM uses... Corsair has used several different IC's for their C2 RAM.
you can take a look here and see if you can find your RAM
http://www.houseofhelp.com/forums/sh...ad.php?t=44365

just a word of caution...
I had a pair of that same exact RAM and it would not run at a 1T command rate even at DDR400 speeds... I RMA'd it and the pair I got only worked for less than 24 hours... I sent them back to Corsair. The 3rd pair work just fine but the RAM Guy refused to tell me what IC's they use... He's a real _____ I'll let you fill in the blank, but know that it's not suitable for here...

So anywho, most C2 will OC to around 240. Some will make it to DDR500 but I personally wouldn't hold my breath if I were you... and to get them to do DDR500 or close you'll have to loosen the timings to about 3-3-3-8 which is absolute crap.
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post #14 of 17
Im 1) doing very well with it and
2) thats as good as its gonna get unless I can bring down my FSB ie get a chip with a higher multiplier?
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post #15 of 17
Sorry, slightly off topic, but brendo where did you find optys in the UK that are actually available, have been to loads of sites, but all out of stock, or not listing them at all.
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post #16 of 17
Thread Starter 
I checked out that thread... is this good?

CMX512-3200C2PT XMS3202v5.2 0544083-0 = Promos -5 Rev A
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post #17 of 17
Thread Starter 
Quote:
Originally Posted by chrisjmoss
Sorry, slightly off topic, but brendo where did you find optys in the UK that are actually available, have been to loads of sites, but all out of stock, or not listing them at all.
you wanted to know where i'm getting my opty from...

http://www.techstore.co.uk/browse.ph...odLineID=67467

They're not getting them in stock for another 2 weeks unfortunatly.
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