PC powers on/off during boot, wont complete boot

bigcitycat

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Messages
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It's a friends pc. I replaced the power supply but that did not fix it. It's not a virus cause it did allow me to install linux. So the cd rom worked through the install. The computer has a lot of dust in it. I was going to blow it out tomorrow. Could it just be dust? Any other ideas.
 

My Computer My Computer

Computer Manufacturer/Model Number
Samsung rv520
OS
Windows Seven, Ubuntu
CPU
Intel
Graphics Card(s)
Intel
am not a pro but i know this much atleast cus i have already faced similar problem, the os goes to the loading screen takes long than usual to load and then reboots without getting to the welcome screen right? cleaning surely helps :)
 

My Computer My Computer

Computer Manufacturer/Model Number
Misc
OS
Windows 7 Ultimate
CPU
Amd Athlon X2 7850 BE @ 2.80 Ghz (Stock)
Motherboard
Biostar TA790GXBE
Memory
Transcend 2 x 2 Gb @ 800 mhz (Dual Channel)
Graphics Card(s)
Sapphire Radeon 4670 512 Mb DDR3
Sound Card
Onboard
Monitor(s) Displays
Samsung SyncMaster 794MG 17" Crt
Screen Resolution
1152 x 864 @ 75 Hz
Hard Drives
250 Gb, 7200 Rpm Seagate ST3250820AS
PSU
Misc
Case
Misc
Cooling
Stock
Keyboard
Misc
Mouse
Misc
Internet Speed
1024 Kbps, 125 KBps
I just finished cleaning and it is still power on off. I pulled the ram and it beeps. I un hooked everything from the mother board, pulled it out and cleaned it. I am beginning to think the hard drive is bad.
 

My Computer My Computer

Computer Manufacturer/Model Number
Samsung rv520
OS
Windows Seven, Ubuntu
CPU
Intel
Graphics Card(s)
Intel
if ur hd has smart technology, bios will notify u before loading screen about hard disk's bad status if its going to fail soon.. already happened to one of my hard disk's a 80 gb samsung sata about 20 days ago.. waiting for a replacement
 

My Computer My Computer

Computer Manufacturer/Model Number
Misc
OS
Windows 7 Ultimate
CPU
Amd Athlon X2 7850 BE @ 2.80 Ghz (Stock)
Motherboard
Biostar TA790GXBE
Memory
Transcend 2 x 2 Gb @ 800 mhz (Dual Channel)
Graphics Card(s)
Sapphire Radeon 4670 512 Mb DDR3
Sound Card
Onboard
Monitor(s) Displays
Samsung SyncMaster 794MG 17" Crt
Screen Resolution
1152 x 864 @ 75 Hz
Hard Drives
250 Gb, 7200 Rpm Seagate ST3250820AS
PSU
Misc
Case
Misc
Cooling
Stock
Keyboard
Misc
Mouse
Misc
Internet Speed
1024 Kbps, 125 KBps
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