hi, I bought last July 60 hd wd caviar blue 160Gb to make as many PC (same hardware configuration of others made in the past). Now a month after the PC started to give bsdo the bios sometimes does not reveal the hd but sometimes it shows the disk is corrupted or in other cases the system starts, but disk access is so slow as to render it unusable. Using the WD tool for testing some are totally not working and after a low-level format can reuse the disc for a few weeks but then the problem returns. any ideas? Keep in mind that on 60 discs now will be spoiled about 30
Thank you in advance for any advice
Extra note
all motherboard ar asrock g31m-gs
all cpu are intell core duo
all have a micro atx power 400W
all video driver is a asus en210 silent
all pc have only 1 hd and no other driver