I bought all new parts: Motherboard, processor, hard drive, video card, memory and power supply. I have plugged up Motherboard, processor, powersupply and hard drive. I have power but the system will not boot.
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Re: Computer will not boot.
Double check all connections and then remove anything not needed. Remove video card and try onboard video if available, remove all but one mem module, any cards and disconnect all drives. If you get video at this point, shut down and reconnect drives and components one by one. It helps if you have known-good parts to swapt as "new" does not always mean good.
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During the boot up process are there any beeps? If so how many short or long? 1 short beep is typical of a normal boot indicating no conflicts. What you can also do is unplug or remove any unnecessary peripherals (i.e. Hard drive, cd drive, any expansion cards) So that all you have is the the power supply, monitor cable, motherboard, cpu, and memory plugged in and attempt to boot. If this is successful add one peripheral at a time and boot again untill the boot fails again. This will usually indicate a problem with the power supply, either its faulty or not providing enough wattage to support all the peripherals, otherwise its a conflict with the specific peripheral that causes the failure. IF none of that works attempt to reseat all your connections, cpu socket, memory socket, power supply, and video cable. If all that still fails it is most likely a bad motherboard, its not unheard of to receive a DOA motherboard. As a last ditch attempt you can determine is a faulty video chip or the motherboard itself by installing a pci video card and seeing if its successfully boots.
remove the computer covers remove the memory from slot and clean the memory with clean soft clothalso remove the processor fan from the socket clean the surcace of the heatsink and the processor and apply thin layer of heatsink solventand fix the processor fan firmly on the processor socket
This is an issue that one of the devices is not properly seated on the board or it is not detecting them correctly.
1. Remove all devices from the board. All cables coming from Hard drive/CD-rom. Remove the RAM and processor. LEAVE TH E POWER SUPPLY CABLES CONNECTED TO THE BOARD.
2. Re-seat the processor on the board.
3. Re seat the memory on the board.
4. Now re-seat the video card making sure that you push it firmly in place. Connect a monitor to the video output.
Try and boot the computer. If it boots and you see output on the screen then the issue is fixed. If if does not boot you have a problem with one of the following: RAM, Processor, Video Card, or motherboard.
If you have no signal to your monitor, ther are generally three parts that can cause this: the monitor, the DVI/VGA cable (from PC to monitor) or the graphics card. If I were you I'd try to replace those first, then the motherboard. I'm sure there still are socket 939 motherboards out there, so you will not have to replace memory or processor. Just let someone at a local computer store take it apart, install the hardware on a new motherboard, put the harddisk in the system and reinstall Windows.
(the latter because drivers for the old motherboard may conflict with the new ones. If you don't have any problems with that, don't)
Those are the hardest problems to troubleshoot the only way to do it is the first run a diagnostic on the memory and hard drive using a DOS utility. Test the memory with a software called Memtest and the Hard drive with the manufacturer software, you can get them on a boot cd called UBCD (Ultimate boot cd) that you can get here.
UBCD (for memtest let it go for a couple of loops, it can take quite a while depending on your configuration)
After that if all tested good the rest of the parts like Power Supply, Motherboard and graphic card you have to basically try another one to test them. Unless you have a power supply tester to test the power supply.
Are you running one or two video cards?
If just one, 550w should be plenty of power. Double check ALL connections and make sure that the ram and all add-in cards are FULLY seated.
Also check to see if the video card requires its own power plug. If it does, it will have a connector on it for you to attach a lead from the power supply.
Also make sure that you have both power connectors plugged into the mainboard, theres one thats only 4 pins and then of course the larger one of 24 pins.
If all connection look good, then start with the basics. Break it down to just the power supply, mainboard, cpu, one stick of ram and the video card... unplug everything else from the mainboard including drive cables and any add-in cards. And check to make sure you processor is seated properly as well as the ram and video.
Let me know what you find.
normaly ther are two reasons for pc not showing the disply
1 memory card mismach
2 graphics card mismach
get the specification of the mother board and correct the above errors the pc will work if u need more assistace please write to me