The Hard Drive here is writing out the information as fast as possible but it cannot keep up because the randomness of the incoming files is simply to high. Now as seen in the above image having a small 32MB cache is easily filled within a few minutes. Remember, if the cache becomes full and your hard drive cannot keep up with the pace of incoming file pieces your downloads will slow to a crawl or stop entirely. I've created the following image to show you how having this large cache makes an impact on your downloads. Perhaps 512 or 1024 (512MB & 1GB respectively). Rented servers start at 100Mb you will probably want to set this value So if for example you have a 50Mb or 100Mb internet line which areīecoming common in the western world and most seedboxes and cheap Is, will be the speed you will be downloading at. Guide we assume that whatever the maximum speed of your internet line The speed of your internet and the speed of your hard drive. Now changing this setting to a high number depends on two main things. you will see a tick box that says 'Override automatic cache size' and Source: Comment in Reddit /r/torrents post, 'uTorrent Trouble: 'Disk Overload 100%'', by user, lolibattlemech Set uTorrent to be like this in Preferences » Advanced » Disk Cache: