@ DerSnoezie: thank you for your impressive chart! Yes, my drive is also OEM although I bought it directly from a big store (mediamarkt) in Berlin. I'll attach a foto of my drive, because I don't know why the model number above (ST3500820AS) differs from the model number below the "mic"-logo, which is STX-ST3500320AS . Maybe anybody can tell me? BTW, my firmware-number is SD25, as shown on the picture, so I don't quite know why my item in the list was changed. Please see my original post #216. I'm number 12 in the list, and I bought my drive in July 2008 (so the date-code 26/Ago/2008 must somehow be wrong) Thank you for help, and I'm glad I found this forum. It's a good feeling not to be alone with all these problems.
I have the same problem. After running fine for some months, my HDD one morning suddenly was not detected by BIOS. Is dead since then. I add my details to the list below: SerialNumber:Model:P/N:Firmware:DateCode:SiteCode:PurchaseDate:FailedDate:USername =========================================================== 9QM7VZBP:ST3500320AS:9BX154-303:SD15:09146 (09/Oct/2008):KRATSG:Oct2008:24Dec2008:poolcarpet 9QM6X90B:ST3500320AS:9BX154-303:SD15:09115 (17/Sep/2008):KRATSG:Oct2008:28Dec2008:DaftMule 9QM6W2JE:ST3500320AS: - :SD15: - : - :5Dec2008:19Dec2008:DerSnoezie 9QM4G4PK:ST3500320AS:9BX154-303:SD15:08503 (16/Jun/2008):KRATSG:Aug2008:Nov2008:dskbrk 9QM3RWHJ:ST3500320AS:9BX154-568:SD81:08464 (20/May/2008):KRATSG:Aug2008:23Dec2008:ToKuRo 9QM7KSQJ:ST3500320AS:9BX154-501:SD15:09134 (30/Sep/2008):KRATSG:28Oct2008:07Jan2009:jeroen__online 9QM2MFS6:ST3500320AS:9BX154-303:SD15:08406 (10/Apr/2008):KRATSG:12Apr2008:23Dec2008:quattro150 9QJ0XJ01:ST31000340AS:9BX158-303:SD15:08496 (??):KRATSG:Aug/Sep2008:8Jan2009:Nichev 9QM717SF:ST3500320AS:9BX154-303:SD15:09114:KRATSG:13Oct2008:14Dec2008:PrOdiGy1 9QJ1LESR:ST31000340AS:9BX158-303:SD15:09063:KRATSG:Nov2008:27Dec2008:AVINNC 9QJ1AGEV:ST31000340AS:9BX158-303:SD15:08515(2/Jul/2008):KRATSG:Aug2008:Dec2008:Ruddrage 9QM6354J:ST3500820AS:9BX134-505:SD25:09084:KRATSG:July2008:20Dec2008:rainshower