There are two ways to enable PUIS, the first is the Jumper method when there is a PUIS jumper on the back of the drive, which is very relevant to me as I am using western digital drives with this jumper, on the western digital website, they make no mentioning of PUIS on the jumpers page, but they tmake no mentioning of pins 3 and 4 ! turns out, Pins 3 and 4<\/strong>, when connected together with a jumper enable PUIS on the drive.<\/p>\n\n\n\n Te other way to enable PUIS is through hdparm, to check if it is already set, use the command<\/p>\n\n\n\n If your hard drive has it as a jumper option, the command above helps you explore if the jumper trick is working, otherwise, you need to enable PUIS using hdparm<\/p>\n\n\n\n Mind you, before i explain how to set this up in drives with no jumpers, some controllers are incompatible with this feature, so you will need to at least have a machine that is compatible to set them back if they don’t work<\/p>\n\n\n\n So, to enable PUIS, use the following command<\/p>\n\n\n\n And to set it back (Disable PUIS)<\/p>\n\n\n\n For your reference, the following is what is mentioned on the wetern digital website about Jumpers, notice that they do not provide an explination of the relevant jumpers<\/p>\n\n\n\n The maximum power draw a PC with many hard drives happens at boot time, in my case, the PC is a n intel atom D525MW, which hardly draws any power What this means is that I need an oversized power supply that only does its thing at startup, then becomes an inefficient power supply right […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29,215,9],"tags":[],"class_list":["post-2985","post","type-post","status-publish","format-standard","hentry","category-hard-disks","category-hdparm","category-pc-hardware"],"_links":{"self":[{"href":"https:\/\/www.voodoo.business\/blog\/wp-json\/wp\/v2\/posts\/2985","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.voodoo.business\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.voodoo.business\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.voodoo.business\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.voodoo.business\/blog\/wp-json\/wp\/v2\/comments?post=2985"}],"version-history":[{"count":5,"href":"https:\/\/www.voodoo.business\/blog\/wp-json\/wp\/v2\/posts\/2985\/revisions"}],"predecessor-version":[{"id":3138,"href":"https:\/\/www.voodoo.business\/blog\/wp-json\/wp\/v2\/posts\/2985\/revisions\/3138"}],"wp:attachment":[{"href":"https:\/\/www.voodoo.business\/blog\/wp-json\/wp\/v2\/media?parent=2985"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.voodoo.business\/blog\/wp-json\/wp\/v2\/categories?post=2985"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.voodoo.business\/blog\/wp-json\/wp\/v2\/tags?post=2985"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}hdparm -I \/dev\/sdb | grep \"Power-Up In Standby\"\n<\/pre>\n\n\n\n
sudo hdparm --yes-i-know-what-i-am-doing -s 1 \/dev\/sdb<\/pre>\n\n\n\n
hdparm -s 0 \/dev\/sdb<\/pre>\n\n\n\n
![\"\"](\"https:\/\/voodoo.business\/wp-content\/uploads\/2023\/11\/ssc_desktop.jpg\")
<\/a><\/figure>\n\n\n\n<\/a><\/figure>\n","protected":false},"excerpt":{"rendered":"