Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
User status: Offline
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Have had a real bad problem for ages with PC, under load, the CPU has a really really high pitched sound that gives me a migraine after 5 minutes. I think the problem is the PSU, since it says 250W max on it. System is AMD Athlon 2200XP with 512MB ram and Geforce 4 Ti4800. Its no way near powerful enough is it  also, should the CPU fan over the heatsink blow air at my hand with case off, or should it be blowing over the CPU?
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Icy
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Registered: 31st Jan 01
Location: Edinburgh Drives: Mk3 Golf Gti
User status: Offline
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250w is well low need around 400 or somethin
my old one wasnt powerful enough either
i can feel my fan when the case ifoff am sure
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Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
User status: Offline
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yeah thought as much. Thats Time Computers by the way talk about cheapskate
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kev_corsa
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Registered: 7th Nov 02
Location: Newport, Uni in Bristol
User status: Offline
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the high pitched sound your hearing are probably the smoothing capacitors going faulty in the switch mode power supply mate 
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Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
User status: Offline
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might sound dumb, but will a new PSU do the trick?
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John
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Registered: 30th Jun 03
User status: Offline
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The fan should be blowing over the heatsink btw. You might feel a bit of air being sucked in but it should defo be blowing at the heatsink.
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Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
User status: Offline
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well swapped it over and fan speed was oscillating A LOT, and temp was going up rapidly so i switched it off and put it back.
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James_DT
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Registered: 9th Apr 04
Location: Cambridgeshire
User status: Offline
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It sucks air thru the heatsink and out, so you should be able to feel it with the side off.
Try a new PSU, they're not expensive.
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Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
User status: Offline
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yah its working much better now but noise persists. will pick up a good 450w PSU tomoz, pref one with 2 fans since i have an inlet above PSU slot
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Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
User status: Offline
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Fitted a dual-fan 450W PSU and PC is much better! voltages are stable and noise has gone!
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3CorsaMeal
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Registered: 11th Apr 02
User status: Offline
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turn it off and back on again imo
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PaulW
Member
Registered: 26th Jan 03
Location: Atherton, Greater Manchester
User status: Offline
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pc manufactures such as time, emachines, advent, some others aswell, purposly put in low-powered PSU's so they dont last as long & then you end up buying yet another PC in probs around 2 years time, its how they keep you coming back.
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_Allan_
Member
Registered: 24th Mar 04
User status: Offline
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^ agreed it's prolly one way to ensure a short pc life by constantly loading a low power PSU, Bastards 
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Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
User status: Offline
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GRRRRRR!!! and they stuck some crappy label over the PSU details, scratched it off and said 250W. BASTARDS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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Rebrabuk
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Registered: 28th Mar 04
Location: North East
User status: Offline
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quote:
Originally posted by x8john
The fan should be blowing over the heatsink btw. You might feel a bit of air being sucked in but it should defo be blowing at the heatsink.
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