Hi Jean About this misterious chip, yesterday i did open my computer and found many chips ;-) . Some i identifide and some not. W48C111-16H - Fregency generator SST 28SF040A - EEPROM HIN 211CAS - ??? LTC 1736 CG - Step Down W40S11-02W - SDRAM buff H043 FDS - ??? 4431 AWGT 118 - ??? AD373 - ??? H8 3434 - PROM LM 358 - ??? somthing for powersuplay 4463 AH(A or D) T12A - ??? 724661-001 - ??? P12AB FST3383 - ??? PCA3356 TK41111 - ??? LM4880M - amplfire OCDC42K MC4303 - ??? PU 2211 OCK - ??? EP7209-CV-D - mp3 (whau i have a mp3 :-o ) maybe you can halp me to recognise some of them :-) i tested sensors-detect Next adapter: SMBus PIIX4 adapter at 2180 (Non-I2C SMBus adapter) Do you want to scan it? (YES/no/selectively): Client found at address 0x1f Probing for `Maxim MAX6650/MAX6651'... Success! (confidence 4, driver `max6650') Client found at address 0x30 Client at address 0x4d can not be probed - unload all client drivers first! Client found at address 0x50 Probing for `SPD EEPROM'... Success! (confidence 8, driver `eeprom') Probing for `DDC monitor'... Failed! Probing for `Maxim MAX6900'... Failed! Client found at address 0x69