so turn it on and the fans start up but it wont load the bios ive changed the battery but nothing changed is there any diagnostic software which i can install on one computer and scan the other via sata port or usb price is not a problem
Tagged with: bios • diagnostic software
Filed under: Computer Diagnostic Software
No, if it won't load the bios, it won't run any software on disk or anywhere else. The bios tells the computer intitially how to talk with software.
You could have a memory problem. If they jolted loose, try taking the sticks out and pushing them back in. If a memory is bad and you have more than 1 stick, try taking some of them out and see if it runs that way. Then narrow down which one is bad.
Or it's a power supply problem. Here is directions on how to test that.
http://www.ehow.com/how_4563487_test-computer-power-supply-multitester.html?ref=fuel&utm_source=yahoo&utm_medium=ssp&utm_campaign=yssp_art
Lastly, I've seen motherboards just go bad. Some cheaper ones were built with short-lived capacitors on them (round, can-looking componants on the board). You can usually visually check these by noticing them split open, blown up, or just swelled out of proportion. Sometimes they can be replaced, but you might need a new MB.
When you turn the computer on, can you press F8 and then get the screen where you use the up arrow key to select Safe Mode? If so, you can then open My Computer in Safe Mode, right-click the C System drive. click Properties, then the Tools tab, and then click Check Now. Click to put a checkmark in the box to the left of Automatically fix file system errors, and then click OK. You are asked to schedule it on next restart and click Yes. Now restart and let Windows display its blue screen while it does repairs. When it is done, it will restart your computer and you can only hope for the best.
If this is a system you've just built and have never been able to power up, you might want to check to see that all the chips are seated properly, and/or check for solder bridges between the pins. You would also want to check the motherboard power cables to be sure you're using the proper connection for your motherboard. Also check to see if the bios jumper is set correctly.
If this is a system that had been working previously and has suddenly stopped working, then you still might want to check to be sure the chips are still seated properly. Sometimes an overheated motherboard can cause chips to come loose, or even for solder to melt. If you had reset the bios via the jumper, check to make sure you moved it back into the proper position. Anyway, until you can get the bios to load, you won't be able to run any kind of diagnostic software.
You could also try replacing individual chips with working ones if you have them, to narrow down the possibly faulty component(s). Obviously, this is not something most people are able to do, but if you are a system builder, this might be an option for you.