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I have a mpc clientpro 545 and i had windows xp on it i turn it on and my fan and cpu fan run constantly and i dont get any boot logos i have a black screen what can i do to fix this please help Update ok today i went on the cpomputer ddid the thing with the battery and it didnt work i took the battery out and the jumper off after i tried just the battery and turned ir n and it worked but got nothing on my screen the cpu fan turned off and the cylinder symbol next to thepower button was lit up orange when it turned on i got one beep then when i pressed the power button it immediately shut off when i turned it back on i got no beep and the cylinder did not glow orange and when i press the power button it did not shut off i have to hold it for five seconds to shut it off when i turn it on i have the fan and cpu fan running constantly and nothing on the screen i do not know what happened to it it was working fine and now i have this problem with it ok i will wait for a response ill check back tomorrow for an answer that might help me with this probem ok thanks for helping i am looking forward to providing you with all the information that you need to help me ok bye Update Ohh and i have windows xp on it not had i turn it on and there are no beeps just the cpu and regular fan constantly run when i press the power button it does not shut off but i will try these steps that you have provided me so i can see if i can fix this

Besdies the great points that Richdave makes, I would also try this:“Certain changes in BIOS settings (such as chipset timing or latency, memory timing or latency, processor clock frequency, etc.) can cause a system to no longer boot. If you are able to enter the BIOS Setup by pressing F2, reset the BIOS to factory defaults by pressing F9. Save and exit the BIOS Setup. If you cannot enter the BIOS Setup, clear the CMOS: Turn off all peripheral devices connected to the computer. Disconnect the computer’s power cord from the AC power source (wall outlet or power adapter). Remove the computer cover. Locate the battery on the board (see figure below). With a medium flat-bladed screwdriver, gently pry the battery free from its connector. Note the orientation of the “+” and “-” on the battery. Wait one hour then replace the battery. Replace the computer cover. Plug the computer and all devices back in. You may also need to perform a BIOS Recovery after clearing the CMOS.” from here with more info about your motherboard. Let us know what works and what does not so we can continue to try to assist you.

Do you get any start up beeps? If so how many? May be a video issue. Can you check/confirm the monitor is OK. Swap input, cable etc and advise. THESE MANUALS may give you some assistance. Be sure to post back your findings to allow follow up help if required.

This is me I had to make a new account forgot the password to my account (skulls2rock) I will do the battery thing and see if I download the bios recovery file put it on a USB remove the jumper plug the computer back in and see if I get anything