Ok i'll make this simple 1. I start the computer. 2. It does the memory check 3. it freeze right after that 4. keyboard doesn't respond 5. if i push keyboard before or during memory check its calls keyboard error and freeze, always after memory check. 6. I change the hard drive. does nothing after memory check. 7. I change memory (SDRAM). does nothing after memory check. 8. I remove Cmos battery for 24hrs and put in a new battery. didn't change a thing. 9. Cleared CMOS with the pin thing. did nothing for the computer. 10. Can't enter CMOS cause freeze before i get a chance. 11. USB keyboard. see number 5 12. Forget floppy or CD since it freeze before that and you know after memory check usally computers check hard drives, floppy and cd-rom for their name then start booting up in their repected order but mine doesn't even get to that thats y i change cd-rom, hard drive and floppy but nothing change. Specs Processor: pentium 2 266MHz Motherboard: intel Memory: 256mb Cooling: a fan Videocard: ati agp 2mb Soundcard/Speakers: Opti Hard Disk: 3.4 gig CD-rom: 48x cd-rom Case tower/desktop so i'm out of ideas can you please help me.