running pc without the 4-pin cpu

PC eye said:
The server boards were the first along with the P4 boards to require the extra 4pin plug due to increase in power demand. 24pin also started to be required on various Socket 754 model and now required in general. The atx supplies(updated) now have 20+4 instead of 20pin main connectors.
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Who was talking about the 20+4 or the 24 pin power connector, the question was why his computer ran without the 4 pin CPU power connector. has nothing to do with the extra power connector to help power SLI. Most SLI board are just like mine you have a 24 pin power connector-4 pin CPU power connector and a 4 pin SLI power connector somewhere near the SLI slots!
 
StrangleHold said:
Who was talking about the 20+4 or the 24 pin power connector, the question was why his computer ran without the 4 pin CPU power connector. has nothing to do with the extra power connector to help power SLI. Most SLI board are just like mine you have a 24 pin power connector-4 pin CPU power connector and a 4 pin SLI power connector somewhere near the SLI slots!
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Read carefully now!

slisamepluglc9.jpg
 
I guess thats another- Help Help I,ve fallen and cant get up answers! just push the button on that thing around your neck!
 
Read carefully now!
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What am I supposed to be reading here? The 4 pin ATX12V1 and EZ-plug are different things. If you like I can post a picture with which plugs they are circled and labeled.
 
"Do not forget to connect the 4-pin ATX 12V power plug; otherwise, the system may not boot." should be clearly obvious to the visually impaired! :P
 
Can you explain to me what that has to do with whether the ATX12V1 provides power to the CPU or to PCI Express. Or have you changed your argument and are trying to reaffirm what StrangleHold said?

And not to get technical but it says the system will not boot
 
What Bradan didn't have plugged in was the separate 12v molex type plug that goes in near the cpu socket. He did have the total 20+4pins plugged in. That's why his system runs normally with the P4 model there. The use of the first 24 not 20+4pin main connectors started off with server type boards to later be required by the P4 models for desktop due to the increased demand on power.

Eventually AMD also required it on the Socket 939 board by design so everything was standardized. With the early AGP dual card boards needing more power as well until PCI-E was seen the idea for the four wire molex plug as well as having(on some makes and models only) an auxillery 12v feed for additional devices to be added on. I come across others advising to unplug that if you are not running an SLI setup. It's plugged here without problems.

EDITTTttt... Why is it you always find: Power SupplyATX12V, TFX12V or SFX12V
2x12 power header onboard (adds one additional +12V pin to support 75W PCI Express graphic cards)
at http://store.pagecomputers.com/store/productlink.asp?product_id=758543&scs=CNET#tab_technical when you are not looking for it??? :confused: :P
 
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What Bradan didn't have plugged in was the separate 12v molex type plug that goes in near the cpu socket.
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A good idea, however not the case here. The IS7 doesn't have a 4pin molex connector near the CPU socket (or anywhere else for that matter). There is only 1 4pin connector that couldn't have been connected.
2x12 power header onboard (adds one additional +12V pin to support 75W PCI Express graphic cards)
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Hmm I know that look familiar.... oh right http://www.computerforum.com/492520-post13.html ;) :P
 
Hey I have an AMD 939 pin 3500+ with K8NSNXP 939. THe system will not boot if that 12V 4 pin CPU 2x2 thing is connected! If I connect it, sytem wont start!
 
I have no problem with the four wire 12v molex type e-z plug here being in. I run the same 3500+ model on an Asus A8N SLI board. Something's wrong there somewhere.
 
PC eye said:
I told you that the yellow+black four molex e-z plug wasn't for the cpu. http://img134.imageshack.us/my.php?image=btxformfactorpg27wo7.jpg :D
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PC Eye, the yellow+black connector is NOT the EZ Plug, it is the ATX12V connector, which, as Cromewell said, powers the CPU. You're getting confused between the connectors, let me explain them:

1. 20+4 pin ATX main:
kabel_fuer_xeon_und_std.jpg

This is where the extra power for the PCI-E comes in. The original 20pin (2x10) connector had only 1 +12V wire. The additional 4 pins on the 20+4 pin (2x12) ATX main include an extra +12V wire, which (among other things) allows additional power for the PCI-E slot when required.

2. 4 pin ATX12V:
06-07atx12.jpg

This is the connector Cromewell has been talking about, which powers the CPU only.

3. EZ-Plug:
molex.jpg

No, I didn't mislink it - it's just a regular 4 pin peripheral power connector, the same one you use for drives.

Part of the problem has been the definition of a Molex connector. The word is commonly used to mean a peripheral power connector, the same one that is connected to hard drives, etc... In actual fact, the name Molex refers to the company that created it. All of the various connectors are technically Molex connectors. In technical materials, such as the formfactors guide you've linked to, the word Molex, followed by the part number, is used to refer to each and every connector.
 
PC eye said:
I told you that the yellow+black four molex e-z plug wasn't for the cpu.
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The yellow and black one IS NOT the EZ plug. Bradan's board does not even have an EZ plug, my previous post could have been clearer considering that ceewi1 is right, Molex designed all these connectors but generally when someone says molex they are refering to the 4x1 connector (red, black, black, yellow) not the 2x2 ATX12V1/molex/yellow, black/black, yellow.
 
ASUS EZ Plug is a 4-pin auxiliary +12V connector that is used to ensure voltage stability for your motherboard and for other installed peripherals. ...http://www.cdrinfo.com/Sections/Rev...ections/Reviews/Specific.aspx?ArticleId=14620



The EZ-PLUG is basically a 4-pin molex connector on the board itself that is designed to provide an additional 12V line to the graphics cards in SLI mode. ...http://www.anandtech.com/video/showdoc.aspx?i=2284&p=2



Specifications on atz power supplies
http://www.formfactors.org/developer/specs/ATX_ATX12V_PS_1_1.pdf

Illustration of power connectors
http://img180.imageshack.us/my.php?image=atxpowerconnectorsyu0.jpg
different colors of wires for different connectors
http://img180.imageshack.us/my.php?image=ezplugwithyellowblackrese8.jpg
 
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