To quote, roughly translated: Italian developer Alexander of PS3Mod updated Control Fan Utility to version 1.8.1. See below for the changelog.
CHANGELOG CONTROL FAN UTILITY 1.8.1
Added Payload 4.46
Fixed Minor Bug
Fully translated into Italian
Fixed various problems related to an incorrect display of the language ITA (Thanks Dino05)
Update: Updated to PS3 Fan control utility to Version 1.8.1 Fixed, which works on Habib 4.46. Thanks Estwald (Hermes).
Fixed: works on CFW 4.46 Habib and all CFW.
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Had it on to play some GTA, after an hour it must have crashed and my fan shut off .. Didn't know it until too late, my graphics went all block glitchy like a bad Divx encode.. and Bam.. This here m'fker fried my motherboard !!!!
After I get it back from the shop, i'm putting in a manual fan control knob.
Setting to a single setting rather any payload/dynamic setting works as well. I presume it's the same code used in Iris Manager. Hopefully this new release 1.9.1 fixes the whole crashing thing, it's a minor issue having to run a program before the fan controller but I'd still rather run the fan controller first, especially if I'm running a PSN game which doesn't require me to open another program such as a manager.
^ try using iris manager and do the manual mode, it always works fine for me with no stuttering on sound.
i'm still using 4.21.2 REX, the thing is, in FCU manual mode crashes my PS3 and shutdown as soon as I quit the application payload mode works fine. In Iris Manager, all works just fine, with exception of Payload mode stuttering the audio, which makes any games delay the sound, specially if you play rhythm games the timing gets out of hand.
Does it fix the bug on 4.30.2 Rex which made it crash unless another program was run beforehand? Also does it still cause any sort of stuttering if a payload is used? Even in 2D fighting games the sound would get static several times a minute if payload was used.
Edit: Somehow missed the post saying it doesn't fix the sound problem.
Edit 2: Nope, still crashes unless another program is run first.