Question about Soyo SY-P4VGA Motherboard

1 Answer

SY P4VGA AXT form 478 socket 2.8cpu speed : Powers up but signal to screen HDD is spinning, cd drive has power. Removed all wired and reseated ram removed all pci cards, removed ide wire from slave hdd, and still nothing. Note It did sit unused for 7mo. under the desk without any power to it. Could it be cmos battery finially died and needs to be replaced? or something else?

Posted by on

  • Katie Butler May 08, 2010

    I have tryed these things :-) this pc was my baby i custume built it from board out have tryed all known solutions that i could think of. I at last i do hope the board didn't give out on me. I had to park it (not used) after my crt screen crapped out on me. Worked great until I hooked all back up and pulled in new sceen. Which isn't getting signal.

  • Katie Butler May 08, 2010

    BTW I build and repair older systems so i have many organ donar parts in my shop( Basement). Most repairs are just pair replacements and upgrades. But my specialty is virus removal and system recovery. Windows of corse


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 13,433 Answers

Any computer is going to turn on, with or without the cmos battery. if it runs out you get a message about it, and the time and date settings will not last when the power is turned off.

Lets take the motherboard out from the case and put it on a bench. make sure you connect the 20-24pin main power, 4pin cpu power? (if its old, it might not have this one) Then the CPU, one ram module, and a video card if it does not have a build in video.

The thing is, the power should turn on even if there is no cpu, ram or video on the machine.

Do you have a small speaker attached to the mainboard? do you hear beeps? if you don't have a speaker attached to the board, please obtain one and attach it to the front panel connector header, most likely in the bottom right corner of the motherboard where the power and reset switch connectors and connected, small white text marks the speaker spot.

Now if you get beeping when you turn on, let me know how many long and short, or if it beeps in series (2-4-2-4 for example (that is 2 beeps, pause, 4 beeps, pause, 2 beeps, pause, 4 beeps))

if you don't get any beeping, we might have a fault, take out all the RAM from the machine, try starting up again, does it beep? If it does, try another RAM module, if you get picture, you found the problem. If you don't get picture, the issue is either the CPU or video card.

lastly the issue can be the motherboard.

Let me know once you have gotten this far.

Posted on May 08, 2010

  • Ekse May 08, 2010

    Try another video card if you can, possibly a PCI card if noting else. you can probably find those from a scrap yard or sale, for a dollar or two.

  • Ekse May 08, 2010

    Might want to try another screen as well? All right let me know how it goes.


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

I have a Toshiba L675-S7013, it powers on but won't boot.

I think so, because when it tries to post aznd finds no ram you will get beep code

Jan 30, 2013 | Computers & Internet

1 Answer

Have a replacement motherboard. After about 1 minute it powers itself off. Sometimes it does it sooner - sometimes later. Have replaced the Power supply, removed the graphics card, unplugged all...

Your motherboard is manufacturing defective. If the motherboard still under warranty, take it back to the computer shop where you purchase and demand for an exchange.

Sep 01, 2011 | Biostar P4M80-M4 VIA P4M800 Socket 478 ATX...

1 Answer

Just installed a SY-P4vsa motherboard, no boot

This could be the CD has scratched that caused the datas in the cd are unreadable. Try to use better cd or use other CD/DVD drive

Apr 24, 2010 | Soyo SY-P4VGA Motherboard

1 Answer

P4sd socket 478 motherboard is not booting up at all !!!

1st check if the voltage from the plug has correct groung , neutral phase set .then
try a new smps , with minimum 400W output.
before connecting the same.
please remove all the parts out of the cabinet please connect only motherboard and smps and check its getting switched on , if not then your board is burnt you will have to replace it , if there is power indication then connect the RAM and check , if its also fine then connect the rest and try.
all this u have tried and no use , please post me a msg with full detail of your PC configuration , I can try a resolution


Aug 02, 2009 | HP Asus Motherboard P4SD-LA Socket 478...

2 Answers

Got a thinkpad 2373 laptop. I push the power button and it powers up but the screen remains black. What causes this?

check the program os, try to use safe mode.. if still black try to insert cd os then boot it..

after the checking of program check the inverter, ram, hdd

Jun 25, 2009 | IBM ThinkPad T40 2373 Notebook

2 Answers

Who is the mother board manufature for sy -p41 845pe? what type of cpu does sy -p41 845pe suport and speed range? the type of module, max support capacity and speed ranges? the type of chipsets? the type...

  • Supports all Socket 478 CPUs (400FSB & 533FSB)
  • North bridge: Intel I845PE MCH
  • South bridge: Intel ICH4
System Memory
  • 3 x 184-pin DDR SDRAM
  • DDR200 / DDR266 / DDR333 support @ 2.5v
  • 3GB maximum system RAM
  • AGP slot, 4x AGP compliant (1.5v support only)
  • 6 x 32-bit PCI 33MHz slots
On-board peripherals - I/O
  • 1 floppy port supports 2 FDD
  • 3 Audio Jacks for the CMI9738 sound chipset
  • CMI9738 6-channel sound
  • Davicom 10/100 LAN (10/100 Mbit/s)
  • 2 USB2.0 ports and a further 4 available via headers
  • PS/2 ports
On-board IDE
  • An IDE controller on the ICH4 chipset provides IDE HDD/CD-ROM with PIO, Bus Master and Ultra DMA/100/66/ operation modes
  • Highpoint HPT371 RAID single-channel ATA133 RAID controller
  • Ultra DMA/ATA133, 100, 66, 33 operation modes
  • Supports up to 2 hard drives
  • Serial ATA support via the Marvell 88I8030 single-ATA bridge
  • Supports 1 S-ATA drive
BIOS & Voltages
  • FSB speeds of 100Mhz - 255Mhz (quad-pumped)
  • 1.1 - 1.85v Vcore adjustable in 0.025v increments
  • 2.5v - 2.8v Vmem adjustable in 0.1v increments
  • 1.5v - 1.8v VAGP adjustment
  • Fix AGP/PCI speeds and variable settings

Jan 22, 2009 | Soyo SY-P4I 845PE Motherboard

2 Answers

Pls help how to install reset led, powerled, hdd led in SiS-74

Find the model name and google it, you should find a manual to help.

Dec 20, 2008 | AMD A7S333 (SiS 745) (MBSA7S333)...

1 Answer

Dead compaq laptop, no boot activity

Larnold..Sounding like you need to check the LCD Power Inverter Circuit board.. this is located inside the screen a long rectangular circuit board that sends power to the screen backlight & Display Panel.. Could also be a Bad Backlight.. Try Booting it.. Hold it up to a light and look closely at the screen.. If you see a faint image but no light, it is the Backlight, if Just Black No Activity then its most likely the Power Inverter, OR a Bad Video Card.. You can test the VIDEO by Connecting the laptop to a Computer Monitor or similar with the laptops VGA Serial port.. then Use your function Key and Switch to 2nd Display.....(one of your F keys.. ).. If it Shows up on another screen, Its a Display problem and not the video card... Hope This Helps alittle.. Cheers

Jun 02, 2008 | HP Compaq Presario V6000T Notebook

1 Answer

I have a Boot Problem with my INTEL P4 3.0Ghz. 800Mhz FSB,1M L2 Cache, Socket 478 CPU

I have experienced something similar with my new Core2Duo processor and a fairly new Socket 775 processor. Troubleshooting it led me to believe the CPU simply wasn't compatible with the motherboard. Although it's a shot in the dark, I suggest that you try out some of the following: - Did you try pulling out the graphics card to see if you got it to POST then? The graphics card or the monitor may need replacing. - Did you remove the RAM? - Are you sure all cables are attached properly? - Try to take out the CPU, talk to a friend with a socket 478 motherboard and replace his CPU with your CPU. Does it work now? If yes, motherboard needs to be replaced.

Nov 12, 2006 | Intel P4 Prescott CPU 2.8A Ghz W/1MB CACHE...

Not finding what you are looking for?
Soyo SY-P4VGA Motherboard Logo

Related Topics:

51 people viewed this question

Ask a Question

Usually answered in minutes!

Top Soyo Computers & Internet Experts

Roy May

Level 3 Expert

432 Answers


Level 3 Expert

75797 Answers

Matson Kurian
Matson Kurian

Level 2 Expert

174 Answers

Are you a Soyo Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides