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Old 08-20-08   #11 (permalink)
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Originally Posted by {core2duo}werd View Post
ZOMG!!! so many RAMS!

i thought 64bit had a limit of 128GB? so that 160GB system wouldn't be able to use it all.
64-bit systems can have up to 16 exabytes of RAM. This however is too expensive to manufacture so it is said that 64-bit systems can just address 16 exabytes of RAM. Todays systems support anywhere from 32GB to 256TB or RAM.

In theory though with a good enough piece of hardware and large enough memory you could have 2^64 bytes of memory on a 64-bit machine. Much bigger than what you thought
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Old 08-20-08   #12 (permalink)
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Originally Posted by {core2duo}werd View Post
ZOMG!!! so many RAMS!

i thought 64bit had a limit of 128GB? so that 160GB system wouldn't be able to use it all.
Windows Server 2008 can address up to 2TB RAM IIRC
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Old 08-20-08   #13 (permalink)
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Originally Posted by SerenityKill3r View Post
Windows Server 2008 can address up to 2TB RAM IIRC
I think so...

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Originally Posted by RonindeBeatrice View Post
Windows might have that limitation, but 64-bit OS'es themselves won't see their ram ceiling approached for at least 15 years. 2 million terabytes.
No system will ever approach their 64-bit RAM ceiling. 16 exabytes is a ludicrous number.
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Old 08-20-08   #14 (permalink)
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\o/ except for when you need to spend another $1000 for dual channel
G.Skill (AFAIR) has a 16gb DDR2-PC6400 kit that costs 1000+. The DDR3 version that is headlined in this article will probably cost 2000+. ($)
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Old 08-20-08   #15 (permalink)
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Originally Posted by dejanh View Post
No system will ever approach their 64-bit RAM ceiling. 16 exabytes is a ludicrous number.
Dude, can I quote that? People have thought they were right before...
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Old 08-20-08   #16 (permalink)
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It's said that filling a 128 bit system w/ todays size ram modules would cause the earths oceans to boil because of the density. Interesting.
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Old 08-20-08   #17 (permalink)
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Imagine... 96GB on a X58 board.
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Old 08-20-08   #18 (permalink)
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Haha! That thing looks ridiculously awesome.
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Old 08-20-08   #19 (permalink)
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I believe current 64-bit CPUs actually only have a 40-bit (128GB) addresses.... I have to go look for the documentation for that...
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Old 08-20-08   #20 (permalink)
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Quote:
Originally Posted by {core2duo}werd View Post
ZOMG!!! so many RAMS!

i thought 64bit had a limit of 128GB? so that 160GB system wouldn't be able to use it all.
16 Exabytes.



That much RAM is unneeded for todays applications, much less DDR3. Servers need large amounts of [cheap] RAM, but not that much, and not that fast. It's too expensive, too fast, and too much for what is needed, today. Down the road, yeah, now, no.
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