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I recently purchased an HP notebook that had a BIOS security password pop up when booting. I bought a security chip from Password Crackers and removed the old chip for the new security chip. The new security chip has removed the password that was initially showing on boot up. But now the settings are not compatible with the LCD on the notebook. Nothing is showing on the screen of my notebook. When an external monitor is attached to the notebook it shows an E-PROM error.
Have you tried re-using the original chip? Have you talked to HP? You should always ask the manufacturer of the PC for a compatibility list before purchasing replacement hardware. Chips are usually made to be compatible with some, but not all other hardware.