Dustpuppy

I'm building a system with q6600 2 4870x2s crossfire. possibly water cooling but i haven't ever attempted that before and i was planing on trying to overclock my cpu to 3.0 ghz.

in addition would i have to overclock my memory along with my cpu? to keep them running at the same speed.

I know i should be able find the power requirements for each part but im not sure what im looking for as i couldn't see anything about it.

cohen

Well depending on parts, most of us on the forum can estimate what size Power supply you need....

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Dustpuppy

Im going to use
2.4 q6600 oc to 3.0
dfi p45 mobo
400 gb sata 3 hdd
2 4870x2 crossfire
1066 memory 4 gig
plus water cooling kit for cpu

cohen

700W would do that good.

Do you know what RPM the hard drive is??

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Dustpuppy

7200 rpm

really 700 i was planing on over a thousand man i was way off with the crossfire and all
thats good though it will save me some money

daisymtc

Get a X48 chipset Mobo!
P45 not running CF at full speed.

Dustpuppy

well most of the motherboards with that chipset are ddr2-800 and i really wanted 1066 memory. or i found one with 1066 memory but the fsb is faster so i would have to upgrade my cpu so frustrated will a motherboard with 800 memory be worth it?

hackapelite

No you wouldn't... the rated FSB of a mobo only tells the maximum it's desgined to run without OCing, you're fine with a CPU that's got FSB lower than the mobo.

EDIT:
Okay, even though the above would probably void your reasoning, the answer is still yes - no application out there can utilize full bandwidth of DDR2-800 in dual-channel, DDR2-800 and DDR2-1066 with same relative timings would perform equally in any real-life applications.

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Dustpuppy

Awsome, i i guess ill just upgrade the mobo and ill be set. but it 700 really enough for for 2 of those cards in crossfire?

hackapelite

Yes, if you go with a high-quality brand, Corsair and Antec for example. An el-cheapo 700watt won't do it, though.

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BY READING THE ABOVE POST, YOU AGREE TO THE FOLLOWING:

"The above post is provided solely for entertainment purposes and is not to be taken as professional advice. Therefore, I shall not be held responsible for any damage or losses that are result from anything I have posted, to the extent applicable by law. In the unlikely event that I CAN be held responsible, I have never been here, I am not here, and I will never be here, and it will be highly questionable whether I even exist."