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ASUS Sabertooth 4pin CPU power??

post #1 of 10
Thread Starter 
Hi guys i will be picking one of these bad boys up with an i5 2500k in about a week and was trying to figure something out...

There is an 8 pin power connector for the CPU, but my powersupply only has a 4 pin connector. Is this going to be a problem? or do i have to flippin' well get a new power supply?

Also i found this in the manual, im thinking that i wont do overclockin until i get a new powersupply with 8 pin CPU power.


Many thanks

~Fibre

This is an edited thread from earlier that was about asrock z68 extreme4
Edited by fibre_optics - 7/22/11 at 12:54pm
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post #2 of 10
There are 3 possibilities:
a) the board works with only the 4pin plug
b) it doesn't work with the 4pin and you need to buy an adapter
c) your PSU isn't strong enough to power the CPU so by using an adapter, although you fool the motherboard to work, your PSU will end up going bust due to the overload.

It depends on what your PSU can do; the 8pin is used to power a CPU. If you buy a K-series I suppose you intend to OC it, so you may end up with say 200W thru those 4 wires (actually thru 2 wires as 2 are go and 2 the return) - this is a bit high and the wires/socket may end up melting. My take is that you could use this PSU for stock speed, but any OCing should be done on a PSU that can handle 8pin power sockets.
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post #3 of 10
Thread Starter 
I have just been on google and apparently it says in the manual that you can use the 4 pin connector...

IDK i will just have to wait and see!

thanks anyway


EDIT: Surely i would be using less volts with the 2500k when overclocking then i do with my current 955?

Sounds right?
Edited by fibre_optics - 7/22/11 at 7:37am
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post #4 of 10
The maximum output of a 4-pin is 192W and some of the CPU power is supported by the main 24pin. So that a 4-pin can handle at least a 200W CPU. It is enough unless you do some extreme OC.
You can use it for a while until you really need the 8-pin (which can supply 336W).
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post #5 of 10
Thread Starter 
Quote:
Originally Posted by Zonda View Post
The maximum output of a 4-pin is 192W and some of the CPU power is supported by the main 24pin. So that a 4-pin can handle at least a 200W CPU. It is enough unless you do some extreme OC.
You can use it for a while until you really need the 8-pin (which can supply 336W).
Thanks, i think that i will do what you said, use the current psu until i can afford a new one with 8 pin CPU power.
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post #6 of 10
Quote:
Originally Posted by dragosmp View Post
There are 3 possibilities:
a) the board works with only the 4pin plug
b) it doesn't work with the 4pin and you need to buy an adapter
c) your PSU isn't strong enough to power the CPU so by using an adapter, although you fool the motherboard to work, your PSU will end up going bust due to the overload.
B is not even a valid possibility. Adapters are make things worse by increasing voltage drop while the entire purpose of the 8-pin is to reduce Vdrop.
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post #7 of 10
Thread Starter 
Just updated the OP!

thanks
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post #8 of 10
Are you talking about the Thermaltake EVO BLUE 650W in your sigrig?
That has an 8-pin connector and a 4-pin.
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post #9 of 10
Thread Starter 
Quote:
Originally Posted by sLowEnd View Post
Are you talking about the Thermaltake EVO BLUE 650W in your sigrig?
That has an 8-pin connector and a 4-pin.
I have misplaced the cable... silly me!!
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Beached Whale
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post #10 of 10
Quote:
Originally Posted by Zonda View Post
The maximum output of a 4-pin is 160W WITHOUT MELTING.
You can use it for a while until you really need the 8-pin (which can supply 300W WITHOUT MELTING).
fixed
Edited by redhat_ownage - 7/22/11 at 1:11pm
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