ASUS A8V Motherboard Logo

Related Topics:

BB Posted on Mar 28, 2017

My power supply died (popped), so I replaced it (Antec SL350 with an Antec SL350S). However, when I turned on the switch on the back of the power supply, the motherboard powered up immediately (tower switch was off, I think). I disconnected all peripherals (only processor and mobo left connected.) Still no POST - spinning fans, nothing else. Replaced mobo with another A8V with a replacement processor (FX-55), with brand new power supply (600 watt ATX - Coolmax V-600). Exact same behavior - Still no post - with all peripherals disconnected or connected. Monitor still works; HDDs still work (tested). No POST beep even without video card or soundcard (not onboard). ANY thoughts? What could it possibly be?

  • Anonymous Oct 30, 2010

    What do you mean you turned on the switch on the back of the power supply? The voltage switch? What is the voltage set to? Was this power supply new?

  • BB Oct 31, 2010

    yursolution, I meant the power switch (on/off) that ATX power supplies have, not the voltage switch (which is set to 110V). Normally, when you flip it on, the computer isn't supposed to boot right up, but it does. I tried it with a used but working power supply (the SL350S) and now a new power supply (Coolmax V-600), but in both cases, it does the same thing - fires up everything connected to the power supply (the HDDs, cooling fans, etc.) - as if the computer was turned on. I've tried it with the tower's power/reset switches connected to the mobo's "20 pin PANEL" (the system panel connector for the display LEDs on the tower to light up, etc.) and disconnected - the same result... the mobo's green LED lights up, and the tower's HDD and power lights go on and stay on.

×

1 Answer

Jason Hall

Level 1:

An expert who has achieved level 1.

MVP:

An expert that got 5 achievements.

New Friend:

An expert that has 1 follower.

Corporal:

An expert that has over 10 points.

  • Contributor 9 Answers
  • Posted on Apr 02, 2017
Jason Hall
Contributor
Level 1:

An expert who has achieved level 1.

MVP:

An expert that got 5 achievements.

New Friend:

An expert that has 1 follower.

Corporal:

An expert that has over 10 points.

Joined: Aug 11, 2015
Answers
9
Questions
1
Helped
1416
Points
28

If you "popped" the power supply, I would check to see if the RAM might have taken a hit as well. Ram chips and CPU are sensitive when it comes to power surges. I would troubleshoot the system, unplug everything. you need monitor, power, cpu, and ram (1 at a time). Check to see if the system will POST. if you do get it to POST, start with 1 item at a time and see if the system will POST every time. If nothing happens, there is a chance you may have a damaged motherboard or cpu.

4 Related Answers

antiochpc

Kevin Shafer

  • 1314 Answers
  • Posted on Jul 03, 2008

SOURCE: ASUS P4SP-MX motherboard no POST and no beep without ram

Try removing everything attached to it. The only thing should be the cpu and cpu fan. Turn it on. If it is the same, then it is your motherboard. If you do get the beeping, then start installing things one by one starting with the memory.

Ad

Anonymous

  • 67 Answers
  • Posted on Sep 20, 2008

SOURCE: post shows cpu initiation but stays there

So you mean there is a beep when its starts? How do you know there is no keyboard?

Anonymous

  • 1812 Answers
  • Posted on Dec 12, 2010

SOURCE: Asus M4A785-M will not post.

All I read properly .Please remove power supply from HDD and CD /DVD RW. If you face the same problem Open the mother board on a open place and try it again ,because there are some particles witch has made the short sercit in your M. Board.Cgeack all voldage socket plkaced properly,MAY BE CAN SILLY MISTAKE FOR 4 pin socket .


If you face same problem please install in another mother board .Post me please imediate next result.

Anonymous

  • 71 Answers
  • Posted on May 07, 2011

SOURCE: Asus M4A88TD-V EVO/USB3 BIOS:

It sounds to me like a PSU failure, which does make sense to me. With all that power, you're probably going to need a bigger PSU. I personally would never go under 700 watts, and I have relatively the same setup (only difference being that my mobo is from Gigabyte, and my RAM is from GSkill) The CPU needs 125 watts on its own, then the mobo usually takes almost 30-40 watts (much more so if you're using onboard graphics), a graphics card will take another 100 watts or so (if nVidia, ATI/AMD take about 50-75) so that's almost half of your entire PSU gone to just those things. Fans usually draw about 5 watts each, as do SSDs, HDDs take about 15-20 watts, and CD/DVD drives take almost as much as the mobo to run. Do you see where I'm getting at here? And keep in mind, that even the best PSUs are only pumping out 92% of what they're rated at under perfect conditions (most are under 90%). My current PSU (that I've had without a hiccup for almost two years now!) is still listed on Newegg and is about $60: http://www.newegg.com/Product/Product.aspx?Item=N82E16817152036

I hope this helps!

Ad

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
3answers

Schematic atx diagram

I give up! Why would you need a schematic for a computer power supply? I've been in the computer business for over 30 years and have never needed a power supply schematic. Just curious!
0helpful
1answer

Antec SL350 (smartpower sl350) 350-Watt Power Supply circuit diagram

As I told someone before I have been the computer business for many many years and have never needed a schematic. I am curious why?
0helpful
2answers

Computer does not power up.

Test your PSU or replace it if your power supply units fan is not working your PSU is faulty

One bad lead can cause a computer to continue on a cycle or to shutdown or fail to detect/ boot up a computer hard drive

Test all leads that attach to your hard drive including electrical extensions,IDE,SATA

the leads from your ((motherboard to your hard drive)) make sure they have a secure connection and are not faulty or just replace them there probably old and faulty
make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty even the electrical extensions or just replace them they are probably old and faulty a computer needs its connections to have an end so any faulty leads will end up with a computer error

hope this will help
don

0helpful
1answer

I need a wiring diagram for an Antec SL350 if possible please

Why? In the many years in the computer business I never had a need for a schematic. Just curious!
0helpful
1answer

The fan turns on and off for the SL350

you might have a faulty PSU power supply unit or a faulty power point or lead
test the power point first by trying another electrical device then test the lead if these fail you will have to test the PSU using a multimeter making sure your psu is getting the correct amount of voltage and wattage
hope this helps
0helpful
1answer

After 1 -2 hours watching tv hear a pop and set goes off. Cannot switch it back on at power switch but when you pull out the power cable wait 30 seconds and put back in the set comes alive again. Once it...

No,the effect will take longer and longer to turn on tv and dies all together later on.Power supply board have parts call capacitors,have problems.These capacitors parts on the power supply board are dying and have leaking gases.The board where the power a/c cord plug into it.That the power supply board.Searches the power supply board.U now basic eclectronic's,have tools and know basic slodering?These dying capaciitors parts are alway bulges up on it tops or puff up on it tops,must be replaced.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.
2helpful
1answer

Front fan on the power supply is not working

Two things come to mind ...

Thing one: There is probably a small fuse inside your power supply. You can probably replace it without getting hurt. If you don't fix or replace the power supply IT WILL FAIL. On the one hand, it isn't working now ... if you try to fix it and fail, you will have to replace it. If you don't try to fix it, you will eventually have to replace it.

Remove the computer cover. Unplug all the leads. Take a pic or several and make copious notes of where they go. Remove the 4 small screws holding the supply in. Once out, determine the process to open the unit. Look closely for a very small fuse. Try to get the value before you remove it. Something else to do is to test the fuse with a volt ohm meter.

The problem with waiting is, HEAT, is the enemy of your entire computer. You don't want to fry internal parts.

Thing two:

The fan may be bad ... it plugs into the PCB or is soldered into place. It is easily removed and replaced. Get a replacement at FixYa.com advertiser or Radio Shack or similar place. Watch polarity when you replace it.

I hope this helps you ... Please don't wait for complete failure.

Thanks

Please vote

Positive comments always welcome.

a
1helpful
1answer

Yes I need to replace a sound board,But know how to get into the computer, how do I open side to place board in? Its an Antec 500 I think

lay it on its side and there should be two or three screws on the back. unscrew those and the side should just pop right out.hope this helps
~good luck
Not finding what you are looking for?

109 views

Ask a Question

Usually answered in minutes!

Top ASUS Computers & Internet Experts

Grand Canyon Tech
Grand Canyon Tech

Level 3 Expert

3867 Answers

Brad Brown

Level 3 Expert

19187 Answers

Paul Bade

Level 3 Expert

1818 Answers

Are you an ASUS Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...