It is a tower. It is old. it works fine but for the fact it's slow. Only light indicator is a power on button. Which is on. There is an occasional flicker from a light which i assume is an updating indicator(?) Does have a CD rom. But it's empty......馃槥
Turn it off, and look closely at the motherboard; and make sure the fans are plugged into the areas labeled with "fan"- or otherwise look like this Also a good dusting can help too; i'd suggest canned air, or if you're careful a leaf blower on low.
@Teirdalin: Ok ok before i do something daft that i'm sure i'll regret later. Can you talk me through the real basics!! I can't SEE a MUTE button indicated anywhere. But before i consider surgery on an otherwise perfectly serviceable PC, I just want to make sure i'm not missing the 'blindingly obvious to your average 8 year old'. !!
UGH!! Borrowed some 'proper' screwdrivers. Since using a table knife to undo them, horrified my mother !! Took the casing off. Vacuumed the inside as best i could. Pushed as many plugs as i could see to make sure they connected. Shocked myself !! Swore ! Turned off power !!! Put the casing back on and did it up. Powered it back up. Fan ran very fast for about 20 seconds then died ! Loud 'PING' noise and the volume was back !