Questi4110
01-10-2004, 09:12 PM
I found an article and e-mailed the author of the article. He responded saying that he doesnt know much about this stuff and to go this forum and ask the question instead.
Instead of me writing my question out again, i'm just going to post the e-mail i sent to the guy:
In searching for my answer, I came upon your article:
Your Article (http://home.comcast.net/~wxdude1/emsite/powersupply/dualsupply.html)
It says that I have any comments/question that I should e-mail you. Well I have a question on a another topic but it is similar to this one.
I have posted my question on the anandtech forums here:
Post 1 (http://forums.anandtech.com/messageview.cfm?catid=27&threadid=1223285&STARTPAGE=1&zb=426713)
and I have also posted it in the same forums but different section here:
Post 2 (http://forums.anandtech.com/messageview.cfm?catid=32&threadid=1223283)
But I will explain myself again just to make sure.
Basically what I have is a PSU without a motherboard and no switch on the back of the PSU. I realized that by just plugging in the power cord, the PSU will not turn on. So I looked up how to power up a PSU without the use of a motherboard. I found some sites that said to create a jumper between the green wire and any black wire (so i just used conductive wire and put each end into the green and black).
The article i used was:
Article I used (http://modtown.co.uk/mt/article2.php?id=psumod)
OK after this part i realized that since i have no motherboard, i dont have a switch to turn the PSU on and off since the normal switch (located in the front of the case of the computer that is used to turn the computer on and off) needs to be hooked up to the motherboard.
One of the accessories that i connected to the PSU needs to be on at all times (it needs to be receiving a little bit of power - like the extra backup battery on a motherboard) but I dont want to have the PSU and the fan on.
Basically, i want to keep the cord in and have the PSU controlled by another switch (the one that would usually be the one that turned the computer on and off) so that there would be a constant supply of power to the cables but it wouldn't be technically on.
As of right now, i can only have all power or no power since the power is controlled by me pulling the power cord out of the back of the PSU or plugging it into the back.
Somebody replied to my question on the anandtech forums by saying this:
---
"In regard to the first question, if the power switch on the psu if off, no electric current will flow. For the second question, if you want to add a switch, simply put some kind of switch in the loop that goes between the black and green wires on the mobo connection."
---
The second question answer is the one i am interested in.
Here are my questions to you:
1. If i follow this person's directions of adding a switch to the jumper that i have created between the green and black wire, will this act like the power switch on the front of hte case that is used to power up the case?
2. If #1 doesn't work, I noticed in your article on your webpage, you said that cable #17 controls the power switch on the front of the case:
--------------------------------------------------
"Steve also constructed a couple of switch panels so he could control the two motherboards.
The instructions are very brief with a single image.
The panel has two momentary switches and 2 LED's.
One switch is for on/off and the other is reset.
The green led is power on and the yellow is for hard drive.
You need to remember that a PS is turned on by a signal from the Motherboard.
IT CAN ONLY RECIEVE ONE SIGNAL FROM THE SETUP! That is why we have to cut #17 wire on
the connection that goes to the #2 Motherboard. (That seems to be the signal wire to the PS.)
This means that Power to both Motherboard's is supplied when you press the ON/OFF button
on Motherboard #1. Both boards will post when you press the ON/OFF switch on Motherboard #1.
The ON/OFF switch is really not needed on the #2 Motherboard.
When powered on, the Reset switches work to control each board as in a normal setup.
It is the only way to restart the # 2 Motherboard.
IF YOU USE THE ON/OFF SWITCH ON MOTHERBOARD #1 IT WILL TURN OFF BOTH BOARDS!"
----------------------------------
So in continuation to my question #2, is there anyway to connect the power switch (that would normally plug into somewhere on the motherboard) to one of the wires coming off the main ATX power cable?
THANKS
Instead of me writing my question out again, i'm just going to post the e-mail i sent to the guy:
In searching for my answer, I came upon your article:
Your Article (http://home.comcast.net/~wxdude1/emsite/powersupply/dualsupply.html)
It says that I have any comments/question that I should e-mail you. Well I have a question on a another topic but it is similar to this one.
I have posted my question on the anandtech forums here:
Post 1 (http://forums.anandtech.com/messageview.cfm?catid=27&threadid=1223285&STARTPAGE=1&zb=426713)
and I have also posted it in the same forums but different section here:
Post 2 (http://forums.anandtech.com/messageview.cfm?catid=32&threadid=1223283)
But I will explain myself again just to make sure.
Basically what I have is a PSU without a motherboard and no switch on the back of the PSU. I realized that by just plugging in the power cord, the PSU will not turn on. So I looked up how to power up a PSU without the use of a motherboard. I found some sites that said to create a jumper between the green wire and any black wire (so i just used conductive wire and put each end into the green and black).
The article i used was:
Article I used (http://modtown.co.uk/mt/article2.php?id=psumod)
OK after this part i realized that since i have no motherboard, i dont have a switch to turn the PSU on and off since the normal switch (located in the front of the case of the computer that is used to turn the computer on and off) needs to be hooked up to the motherboard.
One of the accessories that i connected to the PSU needs to be on at all times (it needs to be receiving a little bit of power - like the extra backup battery on a motherboard) but I dont want to have the PSU and the fan on.
Basically, i want to keep the cord in and have the PSU controlled by another switch (the one that would usually be the one that turned the computer on and off) so that there would be a constant supply of power to the cables but it wouldn't be technically on.
As of right now, i can only have all power or no power since the power is controlled by me pulling the power cord out of the back of the PSU or plugging it into the back.
Somebody replied to my question on the anandtech forums by saying this:
---
"In regard to the first question, if the power switch on the psu if off, no electric current will flow. For the second question, if you want to add a switch, simply put some kind of switch in the loop that goes between the black and green wires on the mobo connection."
---
The second question answer is the one i am interested in.
Here are my questions to you:
1. If i follow this person's directions of adding a switch to the jumper that i have created between the green and black wire, will this act like the power switch on the front of hte case that is used to power up the case?
2. If #1 doesn't work, I noticed in your article on your webpage, you said that cable #17 controls the power switch on the front of the case:
--------------------------------------------------
"Steve also constructed a couple of switch panels so he could control the two motherboards.
The instructions are very brief with a single image.
The panel has two momentary switches and 2 LED's.
One switch is for on/off and the other is reset.
The green led is power on and the yellow is for hard drive.
You need to remember that a PS is turned on by a signal from the Motherboard.
IT CAN ONLY RECIEVE ONE SIGNAL FROM THE SETUP! That is why we have to cut #17 wire on
the connection that goes to the #2 Motherboard. (That seems to be the signal wire to the PS.)
This means that Power to both Motherboard's is supplied when you press the ON/OFF button
on Motherboard #1. Both boards will post when you press the ON/OFF switch on Motherboard #1.
The ON/OFF switch is really not needed on the #2 Motherboard.
When powered on, the Reset switches work to control each board as in a normal setup.
It is the only way to restart the # 2 Motherboard.
IF YOU USE THE ON/OFF SWITCH ON MOTHERBOARD #1 IT WILL TURN OFF BOTH BOARDS!"
----------------------------------
So in continuation to my question #2, is there anyway to connect the power switch (that would normally plug into somewhere on the motherboard) to one of the wires coming off the main ATX power cable?
THANKS