Computer wont turn on when 2x2 connector is plugged in.
When i plug the 2x2 connector into my motherboard my computerwont start, it just turn on for like 1sec then turns off. When its notplugged in and just the 2x12 one is, all the fans on the video card,cpu heatsink, and case fans turn on fine and the computersstays on. But i cant do anything because the screen is just blank andnothing happens. I'm pretty sure the psu is not the problem because itran my other computer just fine. And its 730w so im also pretty surelack of power isnt the problem either. I dont think that the problem isit getting shorted out/grounded on the case either because it wont worksitting on my table either. Can anyone help me?
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The motherboard can support a 2x2 (4 pin) or 4x2 (8-pin) connector. The motherboard employs a foolproof design, as the socket on the motherboard is keyed to prevent you from installing the 2x2 in any position other than the correct one. The image below was extracted from page 24 of the manual.....you plug should be in pins 3,4,7,and 8.
check the power supply: unplug the main connector from the motherboard,plug in the ac/mains power cord and switch on the on/off switch if any located on the power supply, locate the GREEN wire on the main connector that plugs on the motherboard, using a small length of wire insert one end into the plug where the GREEN wire is located and the other end into a BLACK wire on the connector. the power supply should power on if it is good: you will see and hear the fan turn on in the power supply. if it is good remove the wire and re-plug it.if it is not good replace the power supply. also check that the 110/220vac swithch is in the correct position for your mains voltage.do you have a floppy drive connected to the system? if so un-plug it and try again,re-check that you pluged the power button switch connector on the mainboard correctly,
Sounds like your wiring isnt right on the on off power. Make sure your power supply can handle this MotherboardAdapter cables are available that allow the incorrect use of older ATX or SFX power supplies in place of an ATX12V or SFX12V power supply. Intel does not recommend the use of these cables. These cables convert a standard 1x4 peripheral connector to the ATX12V 2x2 connector. An ATX12V or SFX12V with the 2x2 connector is required for all Pentium® 4 processor based Intel® Desktop Boards. Using the 1x4 converter cables can lead to system component or power supply damage and/or boot failures. The ATX12V and SFX12V power supply design guides (http://www.formfactors.org/)* recommend a minimum of 8A at 12Volts to properly power any Pentium 4 processor based Intel® Desktop Board. Standard ATX and SFX power supplies typically provide approximately 5A of current, which is not capable of reliably powering the Pentium 4 processor based Intel® Desktop Board. And I think the motherboards going to look for a formatted hard drive wired to the motherboard It wont boot off that USB stick.
Sections 4.5.2 and 4.5.3 (Page 38) list the signal and wire colors for the +12V2DC (2x2 pin) and Peripheral (Molex) Connectors. Figure 11 (page 36) shows diagrams of the connectors and pin-outs for reference.
Most likely, you are looking for the 2x2 pin connector; pins 1&2 are common (black wire), pins 3&4 are +12V2DC (yellow wire w/black stripe)
Hi, I think you are looking at the front USB pin aray connector. The on/off switch and LED light pins are usualy along the edge of the board nearest the front of the case. They will be marked with ID: lettering:- pwrs, hdd led,
rs-sw, pwr led. If your case has one block plug you will haave to gently seperate the segments and plug them on one at a time.
The power and reset switch will work either way but the LED will only work when plugged the right way around, it wont do any harm if they are plugged backwards they just wont work, so experiment. regards mistyman