New CPU not working PSU problem?

Intel / Q9550
August 19, 2009 at 19:19:40
Specs: Windows XP
I am currently using a 500 watt PSU with a 20-pin connector in 24-pin slot. It runs my current processor (Intel Dual Core) but when I installed my new intel Q9550 it wont even boot. Is the problem with my PSU? Should I get a new one with 24-pin connection.
Actual mobo: Asus P5N-E SLI. Should work with the Q9550.

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#1
August 19, 2009 at 19:46:56
Manufacturer and Model Number of your psu?

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#2
August 19, 2009 at 20:01:39
Ultra / X-Connect / 500-Watt / ATX
http://www.tigerdirect.com/applicat...

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#3
August 19, 2009 at 20:02:53
You should always check the CPU support list BEFORE you buy a CPU. The Q9550 is not on the list:

http://support.asus.com/cpusupport/...


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#4
August 19, 2009 at 22:38:23
And your psu should be more than adequate.

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#5
August 20, 2009 at 07:13:32
I have the same PSU in one on my systems, but it's an older S754 board that only requires a 20-pin main ATX plug. Personally, I would get a PSU with a 24-pin plug.

"You can always plug a 20 pin power cable into a 24 pin motherboard but whether it works over the long haul depends on how much current your motherboard draws. Those extra 4 pins provide more current carrying capacity. Plugging a 20 pin cable into a 24 pin motherboard can strain the 20 pins that you're using. If the motherboard draws too much current then it will overheat the connector which can burn or melt it. There are adapters which convert 20 pin cables into 24 pin cables but they don't solve the problem and can cause problems of their own. Many newer power supplies come with a 20+4 power cable which has a 24 pin connector which can be split into two pieces: a 20 pin piece, and a 4 pin piece. This kind of power cable is fully compatible with both 20 and 24 pin motherboards. If you're buying a new power supply then try to get one with a 20+4 power cable."

http://www.playtool.com/pages/psuco...


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