Question about Dell Dimension 2400 PC Desktop

2 Answers

Computer turns on but does not boot windows, no bios screen

Power to everything, tested with multimeter, no start up at all, monitor does not receive signal, hard drive does not spin. Friend says motherboard is probably screwed up since nothing loads and I need a new one.

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  • hellzombie83 Feb 01, 2009

    Same problem but when I remove everything except power cpu fan and the little speaker and power switch it still has no beep code at all. that mean its the motherboard for sure?

    specs are:
    intel core i7 920 cpu
    gigabyte ga-ex58-ud3r board
    cm extreme power 550w ps (not overclocking or running multi vid cards so should be fine for now)

  • trippler May 11, 2010

    sounds like there could be a short somewhere on the board (im going through this atm with a friends comp , he for some reason decided to pull the monitor cord out of the pc (without undoing it (and yes he speaks little english and doesnt understand a thing) and broke it ,he then got himself a new vid card but unfortunatly he didnt fix the original problem and the boards now shorted out and wont work) all it does is give me 1 long beep followed by 2 short ones (on p.o.s.t)





    sounds like a similar problem with your pc.

    basically the only thing to do is replace the motherboard

    (have you tried to replace the power supply? i know you said power to everything)

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My neighbors e machines goes to the start windows normally screen, and then pops up this bright blue screen, but you can't read anything cause its like in a nanosecond gone, then says no signal, then to the bios screen and keeps repeating and repeating

Posted on Dec 05, 2009

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As you seem to not be a total novice with electronics, I would suggest you try unplugging everything with in the computer apart from the big plastic (Molex) connector from the power supply.

So unplug hard drive, cd/dvd drive, all pci cards, monitor and any memory.

PLEASE MAKE SURE THE PC IS OFF WHEN DOING THIS AND TURN OFF AT THE MAINS>

Turn your pc back on, you will hear a beep, nothing to worry about, its because you have nothing connected yet.

One by one start to connect the components back in the unit.

All this is doing is fault finding to see if its hardware related.

might be worth connecting your hard drive 1 at a time if you have more than 1 but the one with your operating system needs to go in first.

Add the ram 1 stick at a time aswell incase it the memory thats gone faulty.

Just remember to be careful with static if you can..


Check your graphics card aswell if you have added one:

Everything that I have read so far points to a graphics card failure..

http://en.wikipedia.org/wiki/Power-on_self-test

Posted on Jan 20, 2009

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1 Answer

Video Problem


That seems to be the monitor running a test. It might do that if it isn't receiving a signal from the computer. Make sure the cable is plugged into the tower and the monitor.

The graphics card could be bad, or the motherboard or power supply. Has it ever worked before? What changes were made? Was there lightning in the area or a power failure?

Turn the computer off and unplug it, and the monitor. Wait a few minutes, then plug everything in and restart. Hopefully it isn't a permanent hardware failure.

A test to narrow down the cause would be to use a different monitor or computer to see where the problem lies.

Oct 31, 2013 | HP Omni 100 PC

1 Answer

Compaq presario sr1420nx turns on makes one beep then resets in continual pattern doesnt get to boot up


To go with my other solution to you;

You press the Power On Button. This in turn presses the Power On switch, located inside the plastic assembly; of the Power On Button.

When the Power Supply is connected to power (Plugged in), there is always a constant 5 Volts present. (DC Voltage)
This is the 5 Volt Standby power.

Pressing the Momentary Contact Switch, the Power On switch; closes a circuit, momentarily.
The Soft Power On circuit.

This 'excites' the Power Supply, and turns it on.
(Sounds like the start of a steamy novel)
The first chipset to receive power is the BIOS chipset.

The Basic Input/Output System is activated. (BIOS program)
BIOS looks to see what devices are connected, DOES a Ram Memory count, and turns the Processor on.
Then BIOS hands the computer over to the Operating System.
(Windows)

ONE beep indicates BIOS has done a Ram Memory test, and everything is OK.
Now next we have BIOS turning the Processor on.

Then handing the computer over to the O/S.

Due to what is going on, as stated in my other solution to you; the Processor is turned on, BIOS goes for the boot files on the harddrive; then power problems develop from the bad capacitors; and BIOS turns the Processor off.

Just about had time to access boot files; but now the Processor is turned off, ('Brain'), and boot files on harddrive couldn't be accessed.
Now here we go again; with the weakened capacitors trying to do their job.
Cycle starts all over again, but weakened capacitors 'drop to their knees', and Processor turns off.

Over, and over; until capacitors fail all the way, and Nothing happens.

Regards,
joecoolvette

[ !O_O! Martha I think the boy's done lost his mind! lol! ]

Nov 29, 2012 | HP Compaq Presario SR1420nx...

1 Answer

Need help from someone who has a Gateway GM5072 Desktop


Monitor, and monitor cable has been checked out, on another KNOWN to be working computer, and check good, check the Power Supply.

1) Yes I know logic dictates graphics should come next, after checking the monitor, and monitor cable.

2) Yes I know LED lights are lit, and fans are spinning.

Hear me out;

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

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

C) A typical Processor can use 51 to 125 Watts of power. Just depends on what Processor it is.

Gateway GM5072 Desktop PC?

http://support.gateway.com/s/PC/R/1008848/1008848nv.shtml

Specifications >
Processor: AMD Athlon 64 X2 4200+

http://en.wikipedia.org/wiki/List_of_amd_athlon_64_microprocessors#.22Manchester.22_.28E4.2C_90_nm.29_2

Look under TDP in the chart. (Thermal Design Point)
Can use Up To 89 Watts.

Meaning?
Your Power Supply could have a weak voltage power rail.
Not enough power to turn the Processor on.

(There are 3 main voltage power rails;
A) 3.3 Volt power rail
B) 5 Volt power rail
C) 12 Volt power rail
Your Power Supply is a converter. Converts 100 to 240 Volts AC to the low DC voltages presented above.
{In comparison two D cell flashlight batteries store 3 Volts DC )

No Processor operating, no computer operating. No computer operating, there isn't going to be a video signal produced by the computer.
This = No Signal on monitor, or monitor goes into sleep mode.

Primer:
You press the Power On button. The plastic assembly of the Power On button, presses against the Power On switch contained inside it.

http://www.directron.com/atxswitch.html

The Power On switch is a Momentary Contact Switch.
The brief closing of the Power On switch closes a circuit.
The Soft Power On circuit.
(Abbreviated as PS_ON)

When the Power Supply is plugged into power, there is a constant 5 volts present, in the Power Supply.
The 5 Volt Standby Power.

Closing the Power On switch briefly redirects the 5 volt standby power, to 'excite' the Power Supply, and turn the Power Supply on.
(Sounds like a steamy novel, huh?)

The first chipset (I.C.) to receive power is the BIOS chipset.

The Basic Input/Output System program is initialized.
BIOS looks to see what devices are installed, does a Ram Memory count, TURNS the Processor on, and hands the computer over to the Operating System.
(Windows XP and Windows 7 are two examples of an O/S.

The TWO main problems for desktop computer failure, is the computer is dirty inside, and Power Supply failure.

Do you have a multimeter, or access to one?
If not, do you have access to a KNOWN to be good, Compatible power supply, that you could briefly use for a test unit?

[An economical multimeter can be purchased for around $5 to $12. Available in a multitude of stores. An auto parts store is but one example. A lot of chain stores carry them. ]

Let's check out the power first. Post back in a Comment.

Regards,
joecoolvette

Aug 15, 2012 | Gateway GM5072 Desktop PC

1 Answer

Hi! I need help with my computer. I use a seagate ST380811AS hard disk in my desktop computer. The problem now, is that everytime I start my computer "A non system disk" appears on the monitor or...


1 Remove any floppy disks or bootable CDs, DVDs, USB flash drives or other bootable media from the computer. Attempt to restart the computer again. Proceed if you continue to receive the error.
2 Restart the computer again. Press the key required to enter your BIOS setup. (The monitor usually displays a "Press [key] to access BIOS" right after restarting your computer. Press the key shown on your screen.)
3 Navigate to the "Boot Options" or "Advanced" menu by using the arrow keys. (The precise menu terms will vary according to your computer and BIOS type.)
4 Select the hard disk that contains your operating system (usually C:) as your primary boot device. Select your CD/DVD drive, your floppy drive or another hard disk as your secondary boot device.
5 Save and exit the BIOS. Proceed with the next step if you see the "Non-system disk error" message again.
6 Restart the computer. Return to the BIOS' "Boot Options" screen by following the steps above, then set the "CD/DVD drive" as the primary boot device and the hard disk as the secondary boot device. Save and exit the BIOS.
7 Insert your Windows installation disc. Restart the computer. Press any key to boot from disc. Follow the on-screen prompts to reinstall Windows.
8 Replace your hard disk drive if you cannot install Windows.

Thanks for choosing Fixya
Sandeep

Mar 19, 2011 | PC Desktops

1 Answer

I have an hp pavilion dv5. When I power it on the computer starts up but the monitor doesn't come on. And then it does this series of beeps. Beep beep beep. It does that series 5 times


Before you begin
Check the following items before using the steps in this document:
•If you have a flat panel LCD monitor, unplug the monitor power cable, wait about 30 seconds, reconnect the cable and then turn on the monitor. This resets the electronics on the monitor.
•Make sure the monitor has power - the light on the monitor is on. If the light on the monitor is off, the monitor does not have power. Connect it to a different power outlet.
•If the monitor has a detachable video cable, obtain a second monitor cable for testing purposes in case the cable is bad.
•Disconnect all connected devices except the mouse, keyboard and monitor. This includes thumb drives and camera-type memory cards from card reader slots.
With the devices disconnected, restart the computer. If the computer starts and the monitor now displays a picture, a device is preventing the computer from starting. Update the BIOS to resolve this issue.
Step 1: Connect the computer to another monitor
Connect another monitor to the computer to determine which device has the problem (the monitor or the computer). This step is very important to help you determine if the problem is coming from the computer or the monitor. If necessary, temporarily connect the computer to a friends monitor for troubleshooting purposes.
After the monitor is connected, turn on the computer and the monitor. What happens?
•If the newly attached monitor does not display anything , disconnect the cable and continue at Step 2: Is the video connection damaged?
•If the newly attached monitor displays the first startup screen(s) but then goes black, there is a problem with Windows starting. Skip to step 5 .
•If the new monitor works , the original monitor or its cables are faulty. Do the following:
1.Replace the monitor power cable.
1.Turn on the monitor. If the monitor displays an image, you are done. If the monitor remains blank, continue using these steps.
1.Replace the video cable.
Turn on the monitor. If the monitor displays an image, you are done. If the monitor remains blank, continue using these steps.
1.If the monitor does not work after replacing the cables, replace or service the monitor.
Step 2: Is the video connection damaged?
Inspect the video cable and video connectors for damage. Check for sharp bends or breaks in the cable and bent or broken pins at the connectors. With the monitor and computer off, try to straighten bent pins with a small metal tube, like the tip of an empty mechanical pencil or the tip of a retracted pen.
Figure 1: Video connector
If you had to straighten any pins, reconnect the monitor making sure that the video cable is firmly connected and then turn on the computer and monitor. If the display is still blank, continue to the next step.
Step 3: Resetting and updating the BIOS
You can use these steps even though you will not be able to see anything on the monitor.
In case an item was changed in the BIOS, such as the primary display device setting, use the following steps to reset the BIOS back to its default configuration:
1.Turn on the computer and repeatedly press one of the following keyboard keys. Press the key about once every second for 5 seconds after turning the computer on.
◦For HP and Compaq computers that came with Windows 7 and Vista, press F10 .
◦For HP and Compaq computers that came with Windows XP, press F1 .
◦For Compaq Presario desktop computers built prior to 2002, press F10 .
1.Wait another 5 seconds.
1.Press the F5 key. This restores the default settings of the BIOS.
1.Press the Enter key. This accepts the changes.
1.Press the F10 key. This saves the changes.
1.Press the Enter key. This saves the changes and exits from the BIOS.
1.The monitor should display the first screens received from the computer (the logo screens). If not, find and download the latest BIOS update if one is available for your computer.
1.If a BIOS update was not available or the monitor is still blank, continue to the next step.

Jun 11, 2010 | PC Desktops

1 Answer

Gibberish + won't finish loading Windows


remove the new memory first. if that does not help you may have some a virus, indicated by safe mode workng fine. One other thing i found would do that is a damaged Hard drive, not to likely here because safe mode works.

Apr 28, 2009 | Dell Dimension E521 PC Desktop

8 Answers

Stand by mode


Check the display cables , and if you have one test a different monitor on your computer.

If this is not a sceen problem, then it is an internal fault possibly the motherboard.

Try first leaving the PC power cord unplugged for ten, fifteen minutes and check if PC restarts afterwards.

Nov 28, 2008 | PC Desktops

1 Answer

Boot sequence manual


When you hit the power button on your computer a whole lot of stuff happens. We call this the boot process. In the days when I first started using computers there was literally a "boot disk", a floppy (5.25" not a 3.5") disk that told the system where to go and what to do so that the operating system would start up. Since then the boot sequence has become somewhat more complicated. So let me take you thru the steps the computer takes to get started. For my example I'm going to use a Windows XP system.
  1. First is the POST, this stands for Power On Self Test, for the computer. This process tests memory as well as a number of other subsystems. You can usually monitor this as it runs each test. After that is complete the system will run POST for any device that has a BIOS (Basic Input-Output System). An AGP has its own BIOS, as do some network cards and various other devices.
  2. Once the POST is complete and the BIOS is sure that everything is working properly, the BIOS will then attempt to read the MBR (Master Boot Record). This is the first sector of the first hard drive (called the Master or HD0). When the MBR takes over it means that Windows is now in control.
  3. The MBR looks at the BOOT SECTOR (the first sector of the active partition). That is where NTLDR is located, NTLDR is the BOOT LOADER for Windows XP. NTLDR will allow memory addressing, initiate the file system, read the boot.ini and load the boot menu. NTLDR has to be in the root of the active partition as do NTDETECT.COM, BOOT.INI, BOOTSECT.DOS (for multi-OS booting) and NTBOOTDD.SYS (if you have SCSI adapters)
  4. Once XP is selected from the Boot Menu, NTLDR will run NTDETECT.COM, BOOT.INI and BOOTSECT.DOS to get the proper OS selected and loaded. The system starts in 16-bit real mode and then moves into 32-bit protected mode.
  5. NTLDR will then load NTOSKRNL.EXE and HAL.DLL. Effectively, these two files are windows XP. They must be located in %SystemRoot%System32.
  6. NTLDR reads the registry, chooses a hardware profile and authorizes device drivers, in that exact order.
  7. At this point NTOSKRNL.EXE takes over. It starts WINLOGON.EXE that in turn starts LSASS.EXE, this is the program that display the Logon screen so that you can logon.

Nov 05, 2008 | PC Desktops

1 Answer

Replaced my hard drive on my hp lap top and i cannot load the restore disk it is hp ze4800 i dont know how to get it load error code pxe e61


HP and Compaq Desktop PCs - Error: PXE-E61: Media Test Failure s.gif s.gif
This document pertains to HP or Compaq desktop computers with Windows XP. The following error message appears: PXE-E61: Media Test Failure This error is probably occurring because the main bootable hard drive is no longer "connected" to the computer and the next usable bootable device in the boot path is the network card. Use the following steps to resolve the error: NOTE: If the computer was recently moved or bumped, make sure the hard drive cables are firmly attached to the motherboard and the hard drive before using the steps in this document. Step 1: Remove all removable storage devices Remove connected devices, remove power, and restart the computer:
  1. Disconnect any, personal media drives, pocket media drives, USB or 1394 (Firewire) devices that are attached to the computer, especially USB thumb drives.
  2. Remove any CD and DVD discs from their drives.
  3. If the computer has a floppy disk drive, remove any floppy disks from the drive.
  4. Press and hold the Power button for 5 Seconds to turn off the computer.
  5. Disconnect the power cable to the computer.
  6. With the power cable disconnected, press the power button again for five seconds. This may reset the firmware for the hard drive to its defaults .
  7. Plug in the power cable only and turn on the computer.
  8. If the error persists, go to the next step. If the computer starts without the error, one of the removable storage volumes may be preventing the computer from starting or the hard drive was not reponding. Do not leave the removable device in the computer when shutting the computer off. You are done.
Step 2: Make sure a network device is not selected as the first boot device in BIOS The computer may be attempting to boot from the network device.
  1. Turn on the computer by pressing the power button on the PC and press the F1 key repeatedly when the first screen opens.
  2. Use the arrow keys to select the BOOT screen (from the menu at the top of the screen).
  3. Use the arrow keys to select the BOOT Device Priority (or similar).
  4. Press Enter .
  5. Read the instructions on the page to move any reference to a netwrok device to the bottom of the list. You should also move the optical drive (ODD) to the top of the list.
  6. Once the selections have been made, press F10 to Save settings and exit.
Step 3: Test the Hard Drive Test the hard drive using the SMART hard drive test:
  1. Press and hold the Power button for 5 Seconds to turn off the computer.
  2. Press the F1 key repeatedly after the computer is turned on. A BIOS setup utility should appear.
  3. After the BIOS Setup Utility is displayed, use the Down Arrow key to select the hard disk drive name and press Enter .
  4. Select SMART Extended Self-Test , press Enter , and wait for the test to complete.
  5. If the test fails, the hard drive should be replaced. If the test passes, go to the next step to update the BIOS.
Step 4: Update the BIOS Download and install the latest BIOS for your computer . If, after updating the BIOS and restarting the computer, the error goes away, you are done. If the error persists or a BIOS update is unavailable, go to the next step to recover the computer. Step 5: Recover the operating system To reinstall the Windows XP operating system, perform a system recovery (or reinstall Windows if the computer was upgraded to XP). You may need to start the computer from a set of recovery discs (or from a Windows Installation disc if Windows was upgraded to XP). For more information about how to recover the computer, refer to the HP support article Performing a System Recovery in Windows XP . Step 6: Repair the computer If the preceding steps do not resolve the error, the hard drive or BIOS may have failed and the computer should be serviced. if this service info does not work contact me.

Oct 13, 2008 | PC Desktops

1 Answer

All I see is a black screen when I start my computer. No Bios, no Windows, nothing! Probable cause ? Thank you.


try to disconnect everything except mouse,keyboard and monitor, turn off computer, unplug power cable and turn it on again..if it wont turn on or still does the same,you need to reseat your memory modules..try using a different monitor as well or reseat monitor cable

Oct 09, 2008 | E-Machines PC Desktops

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