PSU fan dont spin. loud. hot heat

[hohohee]

i have two PSU from ULtra.

one is 400w Xconnect VS and the other is 350w V series installed in seperate machines.

both of them the fan dont spin but system still can run. i guess it is overheat?



spec 1:
x2 4400+
3gig
8800 gts g92
400w ultra xconnect VS

spec 2:
athlon64 3200+
1.5gig
x700pro and x850xt
350w ultra V series



i play tomb raider underworld and unreal tournament 3 max setting on spec 1. after having either game run for about 20min then system start to heat up.... very loud noise. i i put my hand inside thge case and i feel hotness! i can feel the hotness aura touchs my hand! feel the graphic card and hotness! then notice the psu fan dont spin! but everything else still running and the game is still running.

the other ultra psu on spec 2... the fan suddenly dont spin as well. i have this 350w ultra v series psu since late 2006 so i thought its pretty decent so i went ahead and bought another ultra psu which is the xconnect VS for spec 1.



so.... is my situation normal? psu fan dont spin... loud noise.... system hotness when running games. when shut down... low noise... and heat lowered but psu fan still not spinning. shut down and restart..... psu fan still dont spin.

on spec 2.... i have installed x850xt for a long time and no problem. after i install my extra x700 pro.... then install x850xt back..... that is when the psi fan dont spin while playing countless hours of mmorpgs.... 24/7 left it on and mmorpg running.


is this due to cheap psu? but i had ultra psu v series since 2006...

any ideA? any tips? any clues?

[sswilson]

Get some PSUs that were manufactured in this century.... :)

Seriously though. If the fan's aren't running on those PSUs you need to get them replaced. As they heat up, they're putting out dirty power and you're taking a chance on damaging the rest of your gear.

[hohohee]

Originally Posted by sswilson

Get some PSUs that were manufactured in this century.... :).

u mean ultra v series and ultra xconnectVS is old?

[sswilson]

Considering this review of the 400W unit TechAbsorbed: Unique Technology Reviews and News. - X-Connect 400w Power Supply (scroll down for the review) was done back in 2005, then yeah it's a very old unit and the quality of PSUs has improved tenfold since then.

[death_hawk]

I'd be shocked if that Ultra could even spell 400W let alone actually push it...

In fact, reading that review scares me.

12V rail puts out a grand total of 16A (192W). The bulk of the PSU is on the 3.3V/5V rails (combined 240W)

Wow... that's really ing bad.

[hohohee]

Originally Posted by sswilson

Considering this review of the 400W unit TechAbsorbed: Unique Technology Reviews and News. - X-Connect 400w Power Supply (scroll down for the review) was done back in 2005, then yeah it's a very old unit and the quality of PSUs has improved tenfold since then.

so u saying psu lose durability overtime.... which figures why it works fine before. the fan start to not spin few days ago.

i was thinking to get thermaltake power stream.... but then i guess thats 2005 model. i should not right?





in case not to mix up... XconnectVS not Xconnect. this is the one in spec 1 Ultra Products - XVS Modular 400W ATX Power Supply

this is the one in spec 2 Ultra Products - V-Series 350 Watt PSU - Black

[sswilson]

The 400W is still only 20A on the single 12V rail, and I'll bet that's in a room @ -20c. :)

Honestly, I wouldn't trust that to run my WC loop, let alone my gear.

The comment about the age of the unit wasn't that it would lose efficiency over time (which PSUs will), it was about the class of computers it was designed to run, and the general quality of PSUs around the time it was made.

I'm not trying to be a PSU snob here.... I suspect most folks seeing this are waiting for the next post where you report that it's caught fire and burnt down your appartment.... Seriously dude... don't use those PSUs!!! Especially if the fans aren't working!!!!

[hohohee]

have such event ever happend in reality? psu blow up and apartment caught fire? i hear many time but it sound smore of a joke. does it ever happend in reality?

i witness a psu burnt out before... spark and white smoke. thats my old stock bestec 300w on prebuild emachines. curious if psu burning is as dangerous as the joke. and if it can happend.

[hohohee]

is this over 20a? i dont know abything about a and rail. im thinking to buy this for spec 2. can it last atleast 2 years? Dynex DX-400WPS 400-Watt ATX CPU Power Supply - eBay (item 130299304640 end time Apr-17-09 07:08:18 PDT)

[JD]

Originally Posted by hohohee

have such event ever happend in reality? psu blow up and apartment caught fire? i hear many time but it sound smore of a joke. does it ever happend in reality?

i witness a psu burnt out before... spark and white smoke. thats my old stock bestec 300w on prebuild emachines. curious if psu burning is as dangerous as the joke. and if it can happend.

Well if you have any fabrics near your PC, then I suppose its more likely to burn down your house. But generally I don't think houses burn down from PCs. PSUs do blow up in the manner you've described and normally damage the components connected to them.

And the likely hood of this happening is greatly increased since the fan isn't running so all the components are running extremely hot and possibly even beyond spec.