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Computer Powers Up With Out ATX Switch Connected


Six years and over a quarter million views later and it is still helping people. Computer won't boot when 4pin CPU Power connector plugged in My new Mobo has 8-pin EATX12 V cpu plug but my PSU only has the 4pin? got lights for a second when pressing power button then they turn off..need help.. I did the following:



- PSON (Green) -> Ground (Black)

- 3.3VDCS (Brown) -> 3.3v Rail (Orange)


Removed Wires:

- Blue & Purple


I got all the same coloured wires and put them together, twisted them navigate to this website

In fact just go ahead and reset the BIOS, it might fix your problem (stranger things have happened). That will power just about any system with a single GPU. If you have the means, try swapping out the PSU anyway or testing it in another system to be 100% sure it's not the cause. Beep pattern should change to one long and several short beeps indicating a missing graphics card.

How To Turn On A Computer Power Supply

AphexDreamer and qubit say thanks. Put a new one in and the power supply was great. Skip to main content Search form Search Main menu HomeForumsReviewsReportsLoungeTrackerDownloadsAbout ROCCAT Suora FX Review With the semester over and finals just recently behind me, I can finally relax.

There's nothing as satisfying as a positive resolution. Wird geladen... Last edited: Jun 14, 2011 Jun 14, 2011 at 2:13 AM #13 qubit Overclocked quantum bit Joined: Dec 6, 2007 Messages: 13,410 (4.02/day) Thanks Received: 6,956 Location: Quantum Well UK System Atx Power Supply Turn On Now, loop one end of each wire through one of the terminals on the switch.

Power Good Signal How PC Power Supplies Work What PSU did you use?Click to expand... Test Power Supply Paperclip When you have all of the components in it it wont boot. Now connect your red lead of your meter to +5v Standby on pin 9 which has a purple wire on it. There is only one green wire surrounded by a number of black.

When PSU plugged in and turned on only mouse and keyboard power up. Will A Power Supply Turn On Without A Motherboard The cooling fan will power-up, If it needs a load, the fan will just go on for 1/2 a second, then spin-down. I tried with two, one stick and no sticks.G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory CPU area and heat sink all Facebook Twitter Google+ YouTube RSS Feeds Google Currents Welcome Stranger to OCC!Login | Register How To Turn On An ATX Power Supply Without A Motherboard d3bruts1d - October 1, 2004

Test Power Supply Paperclip

Of course, now I have to figure out what I did wrong somewhere else in my wiring. -_-

The motherboard in the computer might have a problem rather than the power supply. Melde dich bei YouTube an, damit dein Feedback gezählt wird. How To Turn On A Computer Power Supply It is possible for both the PSU and Motherboard to be bad! How To Test Atx Power Supply Without Motherboard Saud ChohanSep 12, 2014, 6:01 PM OKay Problem Solved,i have replaced CMOS battery by the new one, and after that i have set bios settings to default and change date and

I've replaced the power supply with a new one, I've checked the MotherBoards battery (Its good), I've reseated and applied fresh thermal paste to the cpu and I've tired running the http://windowsrefund.org/power-supply/am-i-underpowerin-my-computer.php LED and internal speaker. Replacing them can sometimes fix the problem if nothing else is broken, but it may not be worth the time, hassle and uncertainty. you have to connect P1 and other ATX12V to the motherboard otherwise you could fried the psu or motherboardI tried without any RAM in and still no beeps/fans. Atx Power Supply Jumper

Using the site is easy and fun. Jun 14, 2011 at 2:16 AM #14 95Viper Joined: Oct 12, 2008 Messages: 5,527 (1.83/day) Thanks Received: 2,546 Location: στο άλφα έως ωμέγα System Specs System Name: Ha/AhHa/Dell Processor: QX9650 SLAWN AA in Computer Networking Technology BS in Information Technology Comptia A+, N+,S+ Project+, L+ CIW Web Design Specialist, JavaScript Specialist, Database Design Specialist LPIC-1, SUSE Back to top #5 S3cS3arch3r S3cS3arch3r my review here I tested the PC with a known quality PSU from another Desktop build of mine and it turned on!

by performance_1 posted 1 day and 20 hours ago, with 15 replies. Atx Power Supply Pinout Turn On ATX PSU power up sequence and cable connector pinouts Now with all the caveats and warnings out of the way lets get down into the good stuff. Jun 14, 2011 at 2:42 AM #17 AphexDreamer Joined: Jun 17, 2007 Messages: 7,327 (2.09/day) Thanks Received: 1,001 Location: C:\Program Files (x86)\Aphexdreamer\ System Specs System Name: Unknown Processor: AMD Bulldozer FX8320

Then connect your red lead to the PSU On signal on pin 14 which has a green wire going to it.

The PSU is actually a power converter. Do not touch the wire while the PSU is plugged in or turned on, and unplug the unit from the wall outlet when you're finished testing. split second fan spins no boot. Turn On Power Supply Without Motherboard 24 Pin Jun 14, 2011 at 1:17 AM #11 qubit Overclocked quantum bit Joined: Dec 6, 2007 Messages: 13,410 (4.02/day) Thanks Received: 6,956 Location: Quantum Well UK System Specs System Name: Quantumville™ Processor:

Usually motherboard beeps when memory is not installed. cables, open up your case, disconnect everything that is not needed for POST.(Only PSU, MoBo, CPU, 1 RAM DIMM is needed in your case, so disconnect everything else)(If you added a Warning!I have seen and heard that powering up a system with only the motherboard connected may not provide enough load on the PSU and can cause it to fail. get redirected here Including the Video card it had.

If it is still not within 5% of 5v, it is likely the PSU is bad. It is important to note that the + and - 12V supplies are normally not considered by the PSU before it asserts a Power Good\OK signal! To make sure we are all on the same page here make sure the PSU's 20 pin connector is plugged securely into the motherboard and recheck the +5v Standby on pin Turn off the PSU's power on switch to the off or 0 position or if it has none, unplug the PSU from the live power outlet.

ATX Power Supply Unit Fault Isolation: Checking the Power Good\OK circuit Ok, This is it. Best answer 1N07Sep 11, 2014, 9:07 PM Saud Chohan said: Nope, no bios settings had this kind of option.BTW, i got system error named '' 162 - System Options Not Set The CPU? January 2017 Review Plans by chconline posted 1 day and 0 hour ago, with 10 replies.

It takes only a few minutes, and you know you are putting good parts in the case once you are finished.You can turn on the PC by momentarily shorting the two HP Desktop PCs - Motherboard Specifications HP Pavillion a250n key specifications Back to the topic... The system will not boot without it.I always breadboard a new build. solved Cannot tell whether motherboard or CPU is fried only power led on mobo and GPU light up PC won't power up if the 4-pin CPU connector is connected Mobo boots

Once it unlatches you can pull the socket out. ATX Power Supply Unit: Fault Isolation In this section we will apply our knowledge to determine if a failing system has a faulty PSU. Register a free account to unlock additional features at BleepingComputer.com Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. If you can make it work again, please do post what you did, good luck.Click to expand...

I thought my new PSU was DOA until I tried your trick and it fired right up. You may have even heard the PSU referred to as a SMPS or Switch Mode Power Supply. goontingJan 19, 2009, 5:39 PM You should really try removing all memory sticks to verify mobo problem. qubit said: ↑ @95Viper: Aphex said that he swapped out the PSU in his OP, so it's unlikely to be that.Click to expand... @ Qubit> Yes, I saw that, however, even

No caps will blow if you do this and don't put any load on the psu. PSU Basics: As most of you probably know, you cannot simply plug in a PSU to the wall and turn it on. Other BIOS' may be different.Breadboard - that will help isolate any kind of case problem you might have.http://www.tomshardware.com/forum/262730-31-breadboardingBreadboard with just motherboard, CPU & HSF, case speaker, and PSU. solved Help!

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