my friend runs a charity drop in centre for mentally ill people, i managed to source some cheap pcs for them and saw them running fine when i purchased them. they've been in storage since then as the charity was moving to new premises.
dropped pcs off last week and noticed summat a miss. 4 pcs coming back with ram errors so i removed all ram and replaced one at a time on each pc. all was well until the next day when they came back with same errors . one had 3 beeps and rest didn't but re set ram on all and ran for a couple of hours, turned em off and came back next day and had same problem again. pcs are viglen omnino 3 dual core running windows 7 on 2 gig ram.