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#1
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"bench-testing" a motherboard outside of a case?
I want to build up a new system by working with the motherboard (on a
protected surface), with the power supply plugged in. Is this practical, or do I need to have the motherboard connected to the case's on/off switch? Here is why I'm asking this question: I want to test this system step by step, e.g. does the motherboard "light up" when I apply power? When I insert the CPU and RAM, and plug in a monitor, keyboard, and mouse, does it boot up? I want to do this because I expect to be setting and resetting the bridges on an AMD CPU as I experiment with different multipliers, etc. (I have several unlocked CPUs in my parts bin.) thanks, --W-- |
#2
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Many do this all the time, including me.
I use a switch wired to a 2-pin connector to connect to and activate the "power on" signal. At times I've used a small screwdriver to short the 2 pins to power up a board, but one must use caution with this technique, one slip of the hand and poof, all the magic smoke might escape from some critical component. A wooden board (piece of plywood 12" square) makes a nice insulator to set the mobo on top of, or if you have no wood, a large magazine or a couple of paper back books about 1/2-3/4" thick will suffice as the vid card tab will extend below the surface of the mobo. Grounding yourself to the PS case is important at all times. Good luck, have fun. -- Best regards, Kyle "Winey" wrote in message ... | I want to build up a new system by working with the motherboard (on a | protected surface), with the power supply plugged in. Is this | practical, or do I need to have the motherboard connected to the | case's on/off switch? | | Here is why I'm asking this question: | | I want to test this system step by step, e.g. does the motherboard | "light up" when I apply power? When I insert the CPU and RAM, and | plug in a monitor, keyboard, and mouse, does it boot up? | | I want to do this because I expect to be setting and resetting the | bridges on an AMD CPU as I experiment with different multipliers, etc. | (I have several unlocked CPUs in my parts bin.) | | thanks, | | --W-- | |
#3
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Kylesb wrote:
Many do this all the time, including me. I use a switch wired to a 2-pin connector to connect to and activate the "power on" signal. At times I've used a small screwdriver to short the 2 pins to power up a board, but one must use caution with this technique, one slip of the hand and poof, all the magic smoke might escape from some critical component. A wooden board (piece of plywood 12" square) makes a nice insulator to set the mobo on top of, or if you have no wood, a large magazine or a couple of paper back books about 1/2-3/4" thick will suffice as the vid card tab will extend below the surface of the mobo. Grounding yourself to the PS case is important at all times. Good luck, have fun. To solve the dilemma of the screwdriver slip, I just use one of those little blue jumpers to make the momentary contact! Works great, just don't leave it on or get the wrong 2 pins. Rob |
#4
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On Wed, 20 Oct 2004 16:07:09 GMT, Rob
wrote: Kylesb wrote: Many do this all the time, including me. I use a switch wired to a 2-pin connector to connect to and activate the "power on" signal. At times I've used a small screwdriver to short the 2 pins to power up a board, but one must use caution with this technique, one slip of the hand and poof, all the magic smoke might escape from some critical component. A wooden board (piece of plywood 12" square) makes a nice insulator to set the mobo on top of, or if you have no wood, a large magazine or a couple of paper back books about 1/2-3/4" thick will suffice as the vid card tab will extend below the surface of the mobo. Grounding yourself to the PS case is important at all times. Good luck, have fun. To solve the dilemma of the screwdriver slip, I just use one of those little blue jumpers to make the momentary contact! Works great, just don't leave it on or get the wrong 2 pins. Is it OK to simply leave the jumper in place, or would that somehow confuse the motherboard? Rob |
#5
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"Winey" wrote in message
... On Wed, 20 Oct 2004 16:07:09 GMT, Rob wrote: Kylesb wrote: Many do this all the time, including me. I use a switch wired to a 2-pin connector to connect to and activate the "power on" signal. At times I've used a small screwdriver to short the 2 pins to power up a board, but one must use caution with this technique, one slip of the hand and poof, all the magic smoke might escape from some critical component. A wooden board (piece of plywood 12" square) makes a nice insulator to set the mobo on top of, or if you have no wood, a large magazine or a couple of paper back books about 1/2-3/4" thick will suffice as the vid card tab will extend below the surface of the mobo. Grounding yourself to the PS case is important at all times. Good luck, have fun. To solve the dilemma of the screwdriver slip, I just use one of those little blue jumpers to make the momentary contact! Works great, just don't leave it on or get the wrong 2 pins. Is it OK to simply leave the jumper in place, or would that somehow confuse the motherboard? Rob The switch is just a shorting mechanism. As long as you connect the correct 2 pins you can leave is on as long as you like, assuming the switch works properly and isn't permanently shorted. charles..... |
#6
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Winey wrote:
On Wed, 20 Oct 2004 16:07:09 GMT, Rob wrote: Kylesb wrote: Many do this all the time, including me. I use a switch wired to a 2-pin connector to connect to and activate the "power on" signal. At times I've used a small screwdriver to short the 2 pins to power up a board, but one must use caution with this technique, one slip of the hand and poof, all the magic smoke might escape from some critical component. A wooden board (piece of plywood 12" square) makes a nice insulator to set the mobo on top of, or if you have no wood, a large magazine or a couple of paper back books about 1/2-3/4" thick will suffice as the vid card tab will extend below the surface of the mobo. Grounding yourself to the PS case is important at all times. Good luck, have fun. To solve the dilemma of the screwdriver slip, I just use one of those little blue jumpers to make the momentary contact! Works great, just don't leave it on or get the wrong 2 pins. Is it OK to simply leave the jumper in place, or would that somehow confuse the motherboard? Rob Winey, The key, regardless of weather you use a screwdriver, a Jumper (as I do), or a push button switch wired to jacks that slip over the pins, is to have a momentary contact. A continuous shorting is equal to a stuck case switch, that has caused many a variety of undesirable symptoms! Rob |
#7
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On Thu, 21 Oct 2004 17:44:01 GMT, Rob
wrote: Winey wrote: On Wed, 20 Oct 2004 16:07:09 GMT, Rob wrote: Kylesb wrote: Many do this all the time, including me. I use a switch wired to a 2-pin connector to connect to and activate the "power on" signal. At times I've used a small screwdriver to short the 2 pins to power up a board, but one must use caution with this technique, one slip of the hand and poof, all the magic smoke might escape from some critical component. A wooden board (piece of plywood 12" square) makes a nice insulator to set the mobo on top of, or if you have no wood, a large magazine or a couple of paper back books about 1/2-3/4" thick will suffice as the vid card tab will extend below the surface of the mobo. Grounding yourself to the PS case is important at all times. Good luck, have fun. To solve the dilemma of the screwdriver slip, I just use one of those little blue jumpers to make the momentary contact! Works great, just don't leave it on or get the wrong 2 pins. Is it OK to simply leave the jumper in place, or would that somehow confuse the motherboard? Rob Winey, The key, regardless of weather you use a screwdriver, a Jumper (as I do), or a push button switch wired to jacks that slip over the pins, is to have a momentary contact. A continuous shorting is equal to a stuck case switch, that has caused many a variety of undesirable symptoms! Rob Thanks to all who replied. Now I know exactly what to do. All I need now is the block of free time. --W-- |
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