How check if fan is working Dell Vostro 1700

Hello everyone,

I have a greatDellVostro 1700andthat it has becomea littlewarm, I have  peaktemperatures of around90 ° Cwithanaverage workload.

I want to knowif there is anysoftware that cantell ifall thefans thatarein the pcwork.I hearthenoise, butI believe there areat least two, andI would understand ifit all works.

Thanks :)

Massimo