Question about AOpen AX34-U Motherboard

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Power When I pushed the power button, the fans for the PSU and the processor would start and the power light would come on - then the power shuts down immediately. I thought it was the power pack problem, because it it quite old. So, I bought a 430W, but haven't installed it. Do you think it is the power pack? Secondly, the new new 430W PSU has a 4-pin +12V Power Connector. Does the AX34-U motherboard have two power connectors for the motherboard - one 20 pin and a second 4-pin. If so, where is the 4-pin connection on the motherboard? Thanks, Don

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Hi 2VCRSDAD, no I do not think it's a power issue.
When a system starts but than shuts down before you can see any display or hear P.O.S.T. The problem is usually with a device connected to the board or the board. (Suggest you remove the memory & reseat. Making sure it is seated evenly.
Other simple suggestions. Did you check the CPU for bent pins before inserting into the socket? Did you place some thermal grease on the CPU before adding the heat sink & CPU fan assembly? Reset the cmos/bios page 18 in the manual.
Suggest you download the manual from Aopen, click on this link, for the English manual. (It takes a bit to open, wait for it).
ftp://ftp.aopen.com/pub/manual/mb/ax34u-ol-e.pdf

The main site for the Aopen AX34-U is below.
When the above site opens, you will need to set the dropdown menus. "EX:" (Motherboard), (AX34-U). (Driver).
http://global.aopen.com/products_download.aspx

The Aopen AX34-U board does not have a power 4-pin_12v connector. There are a few settings that must be set directly on the board though. Some of these settings refer to the CPU, sound & front case connecters to name a few. The manual is setup nicely. You will find it to be very helpful.
Take you're time going through the manual & setting the motherboards settings. If you find you need help regarding a setting, feel free to post it here & I'll help.

Good Luck!
Mike

Posted on May 18, 2008

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Show all solution to d945plrn motherboard problem not powering up


PSU IS OK? You're sure? You tested the 3 main voltages coming out?

DON'T rely on; "The LED lights are on, and the fans spin, so therefore the PSU must be good.

1) If ALL the LED lights were on at once, they would use less than 1 Watt of power.

2) EACH fan uses 2 to 3 Watts of power.

3) A typical Processor uses 51 to 125 Watts of power.

With a Power Supply that has a weak voltage power rail, you will see LED's light, and fans spin; BUT not enough power to turn the Processor on.

Power Supply also needs to be plugged into motherboard to test, because you need a Load on the Power Supply.

PSU is KNOWN to be good? I mean KNOWN.
Not, "It's brand new so I know it has to be good"
Okay, moving on.

CPU OK?
How did you test it? Install on another working motherboard?

Are the Electrolytic Capacitors on the motherboard good?

http://capacitorlab.com/visible-failures/index.htm

http://www.youtube.com/watch?v=Lut7MX5Dd_A

Capacitors on the motherboard are used as Filters, and Voltage Regulators.
The ones used as Voltage Regulators are in the Motherboard Voltage Regulator Circuit,

http://www.hardwaresecrets.com/article/616

Part of what the Motherboard Voltage Regulator Circuit does, is to regulate voltage for the Processor. (CPU)

The CPU MUST have a steady, 'clean', supply of voltage, and it MUST be kept within the Processor's voltage tolerance range.
Too much, or too little, and the CPU shuts off. BIOS turns it off.

(CPU stands for Central Processing Unit. Another term used is Microprocessor, or simply Processor for short.
I know you are aware, just posting for all those who read the solution in the future)

http://downloadmirror.intel.com/15140/eng/D945PLRN_ProductGuide02_English.pdf

[Better motherboard due to the Intel Q965 motherboard chipset,

http://www.ebay.com/itm/INTEL-DQ965GF-CORE-2-DUO-LGA775-SOCKET-P-4-MOTHERBOARD-I-O-FACEPLATE-INCLUDED-/290863623024?_trksid=p2047675.m1850&_trkparms=aid%3D222002%26algo%3DSIC.FIT%26ao%3D1%26asc%3D11%26meid%3D5685984037376928917%26pid%3D100011%26prg%3D1005%26rk%3D1%26sd%3D330632928551%26

http://en.wikipedia.org/wiki/List_of_intel_chipsets#Core_2_chipsets

Scroll down to Q965 in left column ]

For additional questions please post in a Comment.

Regards,
joecoolvette

Feb 18, 2013 | Intel D945PLRN Motherboard

1 Answer

My computer starts up but then switches itself off after about 15 secs, both the psu and processor fans seem to be working ok, can you help please ? thanks


Does it restart when it shuts off, or just stays off? If it restarts, then shuts down, then restarts again, it's likely a bad power supply unit.

Apr 09, 2011 | Motherboards

1 Answer

My pc starts normally, but after an hour or two when i click windows shut down windows closes, and no signal message is shown on monitor.But the CPU Fan, GPU Fan & Cabinet Fan running normally,they...


Hi,

There are two harware you should check,


First the memory, it might be malfunctioning, if you have an extra memry card, try to swap it just to test the syatem.


Second will be the power supply unit or PSU, that is already overheating and shutting itself down, thus its not powering the your hard disk. try to replace it if you have an extra PSU.


Those are the most probable problem you have, PSU is the main problem in any desktop that was always been overlooked!


Hope that helps you out!


Thanks for using Fixya!

Dec 16, 2010 | Intel DH55TC Motherboard

1 Answer

Sir, I have a Dell optiplex GX110. At the motherboard there is a long brown slot in which a board of 4 expansion slots has been pluged. The first problem was that I had removed the heat sink from the...


When you inserted a test probe into the slot and you saw a spark, then you have short circuit a component on the motherboard and have done a major damage to the motherboard.
You need a new motherboard, most desktop cases have standard mounting holes, you may be able to purchase a motherboard from other manufacturer to fit in the Dell.

Oct 09, 2010 | Dell Optiplex GX110 (2909T) Motherboard

1 Answer

My led and keyboard and mouse light up when I turn on power switch, nothing happens when I push start button. My e-mail address is debandeddy@yahoo.com


first shut down you computer remove the covers of the cpu then locate the memory and remove them wipe them clean with clean cloth and switch the computer on with out the memory and see if you hear any beeps if you hear beeps insert the memory and switch on the computer if still no beeps then remove the processor fan and clean the surface of the processor fan and the processor apply a thin layer heatsink solvent and clip the processor fan tighty to the socket

Sep 14, 2010 | ASUS P4VP- MX VIA P4M266A UATX P4/...

2 Answers

Got my D845WN mobo going again, however it didn't last. Now when I switch it on the psu fan twitches but doesn't go. Nothing else starts. If I disconnect the 12V supply connector for the processor the psu...


try replacing youre power supply, or if youany spare one use if the result is still the same then you have a motherboard problem, i also have the same problem with mobo, same thing, i already tried using a diff power but there still no boot or any beeping sound,

Nov 23, 2009 | Intel D845WN (KD845WNPAK10) Motherboard

3 Answers

System over heating


Simple reason is Replace your SMPS .

Apr 02, 2009 | ASUS K8N-DL Motherboard

1 Answer

Computer shuts down but does not turn off


Mchem, you actually have 2 separate issues going on there.
  • Open control panel > open the system control panel
  • in the system properties, click on the advanced tab
  • in the startup and recovery section, click the settings button
  • In the startup and recovery dialog box, under system failure, remove the check from the automatically restart option
  • click ok
  • click ok

  • Open control panel > open power options
  • in the power options properties, select the advanced tab,
  • in the power buttons section,
  • When I press the power button on my computer: click on the drop down menu and select the shut down option
  • click ok
Sebastien123, you only need to run the first part of this solution.

Dec 20, 2007 | EliteGroup ECS PF5 EXTREME...

2 Answers

Computer powers off during boot


Hmmm...try resetting CMOS & checking all external peripheral connections: (KB/mouse, monitor, etc.)

Oct 26, 2007 | ASUS A8N-E Motherboard

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