Leo Breault posted an answer for this Acer Aspire AM1100-B1410A Refurbished AMD Desktop PC - AMD Athlon X2 4000 2 .1GHz, 2GB DDR2, 320GB S ...:
"Your cpu is overheating., try opening the case and see if there is a lot of dust built up...."
Leo Breault posted an answer for this Dell OptiPlex GX260 PC Desktop:
"Your power supply is dying."
Leo Breault posted an answer for this Dell OptiPlex GX260 PC Desktop:
"Go to support.dell.com and you can download your driver. I was going to upload them here..."