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#1
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Power suppy / mainboard question
Hi,
Some back story: Recently my PC went down and after a painful week of trying to diagnose the problem it became apparent that the mainboard was damaged and also the power supply. I'm not going to go into the details but some very weird things were happening. I ordered an ASUS P4P800 SE as a replacement for my old ASUS P4P800. I picked up an Antec True430 power supply as well. I was very careful in the process of installing the old processor & retention device onto the new mobo. The problem: At this point I've done the following: * I have the old processor & retention mechanism in place on the new mainboard. * Plugged the CPU fan into the board right beside where the CPU sits. * plugged in all of the case fans either into the board or to a cable from the PS. * Installed the memory sticks securely. * plugged in the system panel connector plugs (Power SW, Speaker, Power LED, etc.) * Plugged in the 20 pin and 4 pin cable into the board from the new power supply. It's my understanding that at this stage if I flick the power switch on, at the very least, fans should turn on and I should get some kind of beeping (error or otherwise), even if no hard disk is attached. But I get nothing. The only thing that indicates that power is available is the green LED on the board that lights up. If I click the power switch nothing happens, it's as though the power switch isn't connected to anything. I don't really like to do this kind of low level hardware troubleshooting but in this case I didn't have much of a choice. While I'm fairly comfortable installing a new hard disk or memory stick I'm novice at doing stuff with the mainboard. So I'm wondering if I've overlooked anything obvious. Any help would be appreciated. Thanks in advance. |
#2
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You probably haven't hooked up the Power switch on your case to the
motherboard. You should be able to at least grab the following wires leading from your case; * ide led * power switch * reset switch You need to hook these up to your motherboard if you with to power up your system with the power button on your case. |
#4
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wrote in message oups.com... Hi, Some back story: Recently my PC went down and after a painful week of trying to diagnose the problem it became apparent that the mainboard was damaged and also the power supply. I'm not going to go into the details but some very weird things were happening. I ordered an ASUS P4P800 SE as a replacement for my old ASUS P4P800. I picked up an Antec True430 power supply as well. I was very careful in the process of installing the old processor & retention device onto the new mobo. The problem: At this point I've done the following: * I have the old processor & retention mechanism in place on the new mainboard. * Plugged the CPU fan into the board right beside where the CPU sits. * plugged in all of the case fans either into the board or to a cable from the PS. * Installed the memory sticks securely. * plugged in the system panel connector plugs (Power SW, Speaker, Power LED, etc.) * Plugged in the 20 pin and 4 pin cable into the board from the new power supply. It's my understanding that at this stage if I flick the power switch on, at the very least, fans should turn on and I should get some kind of beeping (error or otherwise), even if no hard disk is attached. But I get nothing. The only thing that indicates that power is available is the green LED on the board that lights up. If I click the power switch nothing happens, it's as though the power switch isn't connected to anything. I don't really like to do this kind of low level hardware troubleshooting but in this case I didn't have much of a choice. While I'm fairly comfortable installing a new hard disk or memory stick I'm novice at doing stuff with the mainboard. So I'm wondering if I've overlooked anything obvious. Any help would be appreciated. Thanks in advance. I seemed to have the same problem with my new motherboard. After reading the instructions again after a half hour break (as it was going to be thrown out the window), I discovered I had missed something. As well as the long block power connector, there was another that needed to be inserted. This smaller one had only 4 wires and when looked at, looks like a mini version of the long power supply block. Check your motherboard for this connection, and make sure your power supply has one also. But really the moral of the story - Read the manual cover to cover, checking each point off as you go through it to see what the problem may be. 9 times out of 10, this is usually the problem. Failing that, good luck! Hope you get the problem sorted soon. Scott |
#5
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#6
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Also check the voltage switch on the back of the powersupply to make sure it
is set for N. American 115V. I've seen power supplies that are set to 240V by default (even those in ASUS cases). JT. wrote in message oups.com... Hi, Some back story: Recently my PC went down and after a painful week of trying to diagnose the problem it became apparent that the mainboard was damaged and also the power supply. I'm not going to go into the details but some very weird things were happening. I ordered an ASUS P4P800 SE as a replacement for my old ASUS P4P800. I picked up an Antec True430 power supply as well. I was very careful in the process of installing the old processor & retention device onto the new mobo. The problem: At this point I've done the following: * I have the old processor & retention mechanism in place on the new mainboard. * Plugged the CPU fan into the board right beside where the CPU sits. * plugged in all of the case fans either into the board or to a cable from the PS. * Installed the memory sticks securely. * plugged in the system panel connector plugs (Power SW, Speaker, Power LED, etc.) * Plugged in the 20 pin and 4 pin cable into the board from the new power supply. It's my understanding that at this stage if I flick the power switch on, at the very least, fans should turn on and I should get some kind of beeping (error or otherwise), even if no hard disk is attached. But I get nothing. The only thing that indicates that power is available is the green LED on the board that lights up. If I click the power switch nothing happens, it's as though the power switch isn't connected to anything. I don't really like to do this kind of low level hardware troubleshooting but in this case I didn't have much of a choice. While I'm fairly comfortable installing a new hard disk or memory stick I'm novice at doing stuff with the mainboard. So I'm wondering if I've overlooked anything obvious. Any help would be appreciated. Thanks in advance. |
#7
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Try the same setup with another power supply, I have an Enermax 451W due to
the fact that the Antec 430W would not work properly in my system. |
#8
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#9
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Thanks for all of the suggestions. As it turns out.... embarrassing as it is to admit, the problem was my jumper settings. Specifically, my power jumper was plugged into the wrong spot. |
#10
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wrote in message ups.com... Thanks for all of the suggestions. As it turns out.... embarrassing as it is to admit, the problem was my jumper settings. Specifically, my power jumper was plugged into the wrong spot. Oops! hehe. Well, glad you got it sorted anyway. Scott |
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