Question about ASUS S478 VIA P4V533-MX Motherboard

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I cant hear a power on self test on my pc?

I cant hear a post test on my pc and also theres no video on my monitor. the cpu u fan is turning indicates theres a power. i have already checked the monitor and it is working with the other pc?

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  • wafu4311 Nov 13, 2007

    still no post test sound and also theres still no video on the monitor and also i noticed that my cd-rom is not working(doesn't not any LED that indicates it is powered up) what shlould i do/



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Check the power supply capacitors aorund the CPU. If they are bulging at the top then they need to be replaced. It is a common problem, especially with motherboards made 2003-2004 timeframe using Nichicon capacitors

Posted on Jan 16, 2008


Take your board to the tecnician with SMPS(the supply unit which give power to the board ,harddisk,cd- rom) it need to be check properly.

Posted on Nov 14, 2007

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  • 91 Answers

Remove the RAM and then heare the sound if the sound comes then check your CMOS battery and then let me know

Posted on Nov 13, 2007

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Posted on Jan 02, 2017

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Monitor screen is black but computer seems to work

That is not enough info, please provide more info so people can understand the issue better. For example, describe what you do and see step by step. When you turn on the machine, after a few seconds it powers on, it should run Power-On-Self-Test (POST) which will end with a beep telling you everything was OK. If you do not hear any beep, the problem is likely to be inside the case, bad video card, motherboard, CPU, etc. Typically bad RAM or Video card will cause a series of quick or long beeps (different for each motherboard) to indicate where the problem is. Bad CPU generally do not generate a beep code and most motherboards also do not give out a beep for motherboard issues, naturally.

If you hear that beep but see absolutely nothing on the screen from the moment you turn it on, then check to see if the status indicator light (assuming it has one) changes color or not:

A) If the light on the monitor changes from red/amber to blue/green but you see nothing on the screen then either the video resolution and/or refresh rate is unsupported, video drivers are faulty or monitor itself is bad.
B) If the light goes back to red/amber or stays that way from get-go, then there is no connection, monitor cable is loose at either end or bad/supported.
C) One other possibility would be the input selection on the monitor which is set to "Auto" by default but if it was manually changed to DVI for example and you are now using a HDMI cable, monitor would not automatically change this setting thus not receiving the signal from the video card. You can check this using the menu buttons on the monitor itself.

This is a generic troubleshooting ideas I just shared, more details you can provide, the better people will be able to assist you.

Nov 21, 2013 | Dell Dimension XPS 400 PC Desktop

1 Answer

No Video

If its a flat screen monitor ?

eMachines flat-screen monitors offer high quality at low cost. eMachines flat-screen monitors are compatible with most brands of PCs. Issues with eMachines flat-screen monitors can arise from faulty power sources, cable problems and incompatible settings. These issues can be resolved by testing step-by-step each possible cause.

Plug the computer's power cable firmly into a working AC outlet. Press the computer's power button.

Check the LEDs on the front of the computer case to confirm that the computer receives power. Plug the eMachines monitor's power cable into a working AC outlet. Press the monitor's power button. Check the LEDs on the front bezel or power button of the eMachines monitor to confirm that the monitor receives power. Orange or blinking LEDs indicate low power or no signal. Green LEDs denote a working connection.. Perform a monitor self-test. Switch off the monitor. Unplug the video cable from the monitor. Press the eMachines monitor's power button. An eMachines logo, Windows logo or "no signal" message indicates that the monitor is working properly. Plug the eMachines monitor's video cable into the video port on the computer. Attach the monitor's included DVI-to-VGA adapter to the monitor's VGA cable if your computer has a DVI port (15 or 25 pin-slots with 1 side slot) in place of a VGA port (15 pin-slots, no side slot). Press the eMachines monitor's input button to change the monitor's setting to match the computer port used. Set your monitor to DVI if connected to your computer's DVI port. Set your monitor to VGA if connected to your computer's VGA port. Connect the eMachines monitor to a known working computer with a known working video cable if the problem persists. Contact Gateway, eMachines manufacturer, if the monitor issue is not resolved. Hope this helps.

Jan 03, 2013 | Computers & Internet

1 Answer

My cpu power switch a problem

dx2300 Microtower (power shuts off)
only 3 things cause self turn off.
  1. PSU bad or is overloaded, we bench test it or in place test it, ask . its easy jumper to do that.
  2. THE mobo sees gross errors; Like overheated CPU or fans dead. and commands the PSU to off, state. to save it from damage.
  3. and The OS (unstated by you) is corrupted and does a commanded SOFT POWER OFF.
that covers all ways.
that no monitor monitor to me tells me, the VGA GPU chip/card
is failing or you do not have full power to it (DC power)

all that matters is the self turn off cause
remove the HDD , if it still self turns off the proves, #3 is NOT IT.
ever clean this beast?
make sure heat sinks not falling off and fans (ALL Of them)
are not packed in lint, my DX has 3 fans, all are tachmeter monitored. PSU fan, CPU fan and a GPU fan (GTX card there)
alway eheck all fans with eyes, not just sound. they most blow.
does the cd eject? if not power is gone. or weak.
power can be good/bad or weak,,(it really is an analog world) for NOISY.
the jumper test is here.

Sep 29, 2017 | HP Compaq dx2300 Microtower - RT950UTABA...

1 Answer

My screen is all blue. When i test the monitor alone its ok. The problem is fron the pc it can i solve this problem

Systems blackout. First to be check is your power supply. Is there a power indicated by a fan at the back of your CPU case. If there's no fan activity, power supply is busted. Replace power supply. If the power supply is good, there should be a beep sound indicating that the motherboard is good. If there's none, isolate the board by removing all devices (hard disk, cards, memory, etc) just to see if the motherboard is working right. Power on again, if there's a beep, you may reinstall the rest of the devices you removed. You may also check your display card.

May 20, 2010 | Dell OptiPlex GX520 PC Desktop

2 Answers

The desktop won't reboot. The power light stays yellow. I hear a fan running, but the monitor says no signal.

If your fan runs and the hard drive spins up, then you have a video card problem.
I'd do this: Disconnect everything inside the case but the CPU, memory, and video. Now try to boot. Also observe the fan on the CPU--does it spin?
If this fails, then your video has probably gone bad. Also--does your computer usually give you a "beep" when it starts up? If so, is it giving you a beep now? If not, you're failing the hardware startup test (POST).
So, your problem may be the video card. If your video is part of the motherboard, then you need to replace the motherboard.

Oct 01, 2009 | Computers & Internet

1 Answer

Monitor has solid green LED, but no display

you have to test the processor functions. therefore use post diagnostic card via PCI or PCIX or USB for the check hexa codes, if you show codes the processor ,ay be ok, also have to check the code function by card manual. and replace the unit that failure.

Mar 12, 2017 | AOC LM-800 18" LCD Panel Monitor

1 Answer

No video

Presario SR1810NX

what monitor.? name and model... vast exist... no all work.
test the monitor first on known good PC that is 1st 1st.
does the Monitor (its button) OSD screens work,, if not monitor is toasted (good power in) if monitor is 2001 relic, some have hidden inside, power saver clock (turn it off , using OSD screens)

no it's not your bios, like the www, myth loves to repeat, ad nausum
here is the correct mess order.
But BIOS screens are the 1st GOAL always,,,, your not there yet.

1: test the monitor first, on other PCs when sure its good move it to
the Presario SR1810NX (and a good known monitor)
2: turn the Presario SR1810NX , on, then see if all fans run
that means SKINS off, omg, the fans are packed in lint , omg2, the CPU fins on its heat sink are packed, bad. (a yearly event)
A CPU can overheat fast, if not able to stay cool.....
CPUs go slower or even halt if the they see massive heat rise.
(built in self preservation mode)

all fans must run and flow air, as the designer wanted. for sure.
then make sure the fan in the PSU runs, if yes, good. if not you lost 12vdc to the fan, bad PSU.

PC sounds to be working, yes?? what do you hear now? a key fact?
push the CD/DVD eject button if it can not eject the PSU is dead.
there are more steps. lots more.
Even the HP service manual tells you how to test the PSU, read that?

Jul 09, 2017 | Compaq Presario SR1810NX Sempron 3200+ 1.8...

2 Answers

Intel D945GTP monitor going into standby, cpu fan runnning full blast

your cpu might be might be defective..if you have no video output it means ur ram or your cpu is bad

Oct 28, 2008 | Intel D945GTP Motherboard

1 Answer

Dell wont start up

On the back of the chassis, there are 4 LEDs above the PS2 connections marked ABCD what do they indicate? During the boot process the lights normally flash on and off green, when the boot process is complete, they should all be green GGGG.

If any are Amber then they are indicating a power on self test (POST) failure. AAGG is bad memory for example.

Post the indications

Aug 06, 2008 | Dell Dimension 4600 PC Desktop

2 Answers

GA-MA790FX-DQ6 Mobo not POSTing Should i reset the bios??

no beeps, indicates you have faulty CPU or mainboard.
  • remove all components even RAM and CPU.
  • insert only CPU and Speaker (without RAM or any other componet).
  • Boot and try to hear, there must be long beep for missing RAM, if not then try to re-insert the CPU or change the CPU/Mainboard.

Thanks and Good Luck

May 14, 2008 | Gigabyte GA-MA790FX-DQ6 AMD Phenom Socket...

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