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4870 on a 450W PSU

post #1 of 11
Thread Starter 
Got my 4870 today. Currently running it on my old 450W PSU from CoolerMaster =) Works like a charm, and my system is overclocked all over.

Running the 4870 @ 790 / 1000. Just gotta wait for a program to be able to set higher clocks. Then ofc vmoding some =)
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post #2 of 11
jebes, plug in a usb stick and ur gone. haha jk. im very impressed though
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post #3 of 11
Please hook up a multimeter and oscilloscope before declaring "Works like a charm".
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post #4 of 11
Thread Starter 
Works like a charm is running Age of Conan, TF2 and World of Warcraft in my case =)
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post #5 of 11
Quote:
Originally Posted by Neo83 View Post
Got my 4870 today. Currently running it on my old 450W PSU from CoolerMaster =) Works like a charm, and my system is overclocked all over.

Running the 4870 @ 790 / 1000. Just gotta wait for a program to be able to set higher clocks. Then ofc vmoding some =)
Scary... it would be wise to spend $75 on a little better PSU. Better safe than sorry.
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post #6 of 11
well i have an extremely similar rig to yours, and I'm just fine as well!

my PSU has 396W on the 12V rail though, doubt that yours has as much...33A that is. and its usually around that much when i test it with a load that would draw as much as possible. (~380W)

I have tested various joints of the psu with a multimeter, everything looks okay...dunno what you would use an oscilloscope for (checking stability?) cause its dc...but w/e
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post #7 of 11
Thread Starter 
Quote:
Originally Posted by Serendiptous One View Post
well i have an extremely similar rig to yours, and I'm just fine as well!

my PSU has 396W on the 12V rail though, doubt that yours has as much...33A that is. and its usually around that much when i test it with a load that would draw as much as possible. (~380W)

I have tested various joints of the psu with a multimeter, everything looks okay...dunno what you would use an oscilloscope for (checking stability?) cause its dc...but w/e
Nope. Mine is 264W on the 12V and 34Amps max. My meter in the front shows just over 250W drawn under heavy load.

For info to previous posters, this wont be my PSU for mutch longer. But my local store was out of big PSU's with 8pin PCI-E plugs. Getting a 850 - 1000W PSU in some weeks. Atleast b4 the X2 arrives.
Edited by Neo83 - 7/8/08 at 8:21am
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post #8 of 11
Thread Starter 
Quote:
Originally Posted by DuckieHo View Post
Please hook up a multimeter and oscilloscope before declaring "Works like a charm".
Idle: 12V; 12.10V
Load: 12V; 11.95V
Diff: 0.15V

It's hauling its ass off to say least

So yea, not charm in that manner. But its working as it should untill I get my new one =)
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post #9 of 11
that is funny and slighty daft, isn't the minimum like 550watts?
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post #10 of 11
Watt rating and actual capacity are two very different things.

Other things like PFC, % of efficiency among other things come into play too.
    
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