Sunday, July 24, 2016

PSU Status Summary

Following along from the SSD summary, the powers supplies I've used myself or for family/friends over the past few years:

My PSUs:

Powerman IP-P410Q3-2
2008 (approx)General use/Gaming PCPower warnings when logging into Linux on the machine; unsure if it's the PSU or not, but it's getting a bit old. No obvious issues with it though.
Antec Neo Eco 520Dec 2012General use/gaming PC
Antec EarthWatts 380Mar 2013HTPCMachine occasionally "turns itself off" for no apparent reason, could be the PSU <- cleared of fault by the TPC-450 below
Corsair VS450Aug 2013General use
Corsair VS3502014General use
Antec EarthWatts 3802014 (2nd hand)General use
EVGA SuperNova G2 750W2014Gaming PC
Antec TPC 450 GoldJul 2016HTPC
Corsair CX550MJul 2016General use/gaming PC

Other PSUs:

Thermaltake LitePower 500W (x3)2013-2014General use
Antec HCG 5202014Gaming PC
Antec Neo Eco 450C2014General use
Seasonic G-6502015Gaming PC
Antec TPC 550 Gold (x2)2015, 2016General use/Gaming PC
Corsair CX-4302016General use

Saturday, July 23, 2016

Trying to Evaluate the Thermaltake LitePower Gen 2

I noticed that Thermaltake have release another LitePower power supply, this one labelled the "Gen 2".

The way Thermaltake uses the LitePower for branding is frustrating, as there have been dozens of them over the years, by five different OEMs, and of markedly different quality. In general they're a last resort kind of PSU, so I was interested to see if this new one might have improved.

Unfortunately it was pretty difficult to find out anything useful. The awesome RealHardTechX database currently doesn't list a Gen 2, and no one appears to have reviewed it yet. The specs are also lean on detail (which is sadly normal for most PSU brands). The addition of 2x6+2 pin connectors on even the 450W model is much more promising than the previous OEM versions of the LitePower.

I asked Thermaltake for a bit more detail on 19th July 2016 — as yet there has been no response, but I'll update if anything comes through.

Thursday, July 21, 2016

Turning Off Wake-On-LAN on Linux Laptops

I noticed my Dell Latitude laptop running Kubuntu 16.04 that even after shutting down completely, the battery was still being drained. The problem is that wake-on-lan is generally turned on by default. Unless you need WOL for some reason — turn it off.

Andi Dittrich has a great article on how to disable wake-on-lan in post 15.10 Ubuntu systems (you need to use a different method if still using versions older than 15.10).

The core method is to create a file named wol.service in /etc/systemd/system/ with:

Description="Disable WOL"

ExecStart=/sbin/ethtool -s wol d


Then run: sudo systemctl enable wol.service

Run sudo ethtool and check it shows "Wake-on: d" after reboot to ensure it has worked.