…This content is for 1-days, 7-days, 30-days, 90-day, 6 months, and 1year members only.Login Join Now Post navigationLENOVO THINKPAD S2 4TH GEN LKL-2 MB 18724-1 BIOS TESTED OK DELL LATITUDE 5430 HDB42 LA-L591P BIOS TESTED OK