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power supply problem?

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power supply problem?

ok guys i cn tell you this much
i have an older pc and my external usb hard drive works on that
but on its psu it dont say the number of watts
i took a picture of the label of my newer computers psu would you like to see it
do you have msn?
i think di do need a new psu becoz my computer is also quite slow
it is after all 2000 mhz and sumtimes it feels slower than my older pc which is 500 mhz!
i cn tell you that my older pc shutsdown in under ten seconds
while my newer one takes over a min
i hope i have given you quite a lot of info nw"!
15 REPLIES
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power supply problem?

i have a problem with my PC
ive had for about a year
and i think the problem has existed since i built it
i have an asus motherboard
when i run the program asus probe, this is a program which shows the status of ur system such as temperature and fan speed
when i run the program it shows the power supply fan at a speed of 0!
when it is working
but i also had problem with my external hard drive
it wudnt work because it was recieving the power for some reason even though i plugged in 2 usb plugs
i have an amd athlon xp 2400+
it seems i have some sort of power problems
cn anyone help
Community Veteran
Posts: 14,469
Registered: 30-07-2007

power supply problem?

Not all PSUs allow the PSU fan speed to be monitorred. Does you PSU have a fan speed lead and if so, is it actually plugged into the motherboard somewhere - normally labeled PSU fan. If it's not or it does not have a speed detection lead, you won't be able to monitor the PSU fan speed is.

What size PSU are you using and what make/model is it?

What else do you have in the PC - detail all PCI cards, drives, external devices etc.
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power supply problem?

well im nt sure but its must be about 300w
which is besides the point because on my other computer which is older it works on tht
i only use 1 usb port for the mouse
i have 2 drives
cd-rw and dvd
a 80gb hard drive
i cant figure out why the usb hard drive didnt work
i also have few problems with other usb devices such as flash drives
they connect up and then like dissapaear, lose power
Community Veteran
Posts: 4,729
Registered: 04-04-2007

power supply problem?

I think Peter was looking for a little more detail, like brand names and models.

Some motherboards with via chipsets are known to have problems with USB devices that require close to the 500mA limit.
It may be worth trying the USB hard drive using a power hub.

Also simple pieces of hardware like power supplies and even IDE cables can cause odd problems.

Chilly
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power supply problem?

well i can tell you that my ups service is currently stopped in power options
what else
asus motherboard
amd athlon xp 2400+
usb 2.0
lite-on cdrw
creative dvd - rom
samsung 256 mb memory
nvidia graphics
built in lan and also 6.1 sound
if u ned mre detail let me knw
i think its an asus a7v8x sumthing like tht
Community Veteran
Posts: 14,469
Registered: 30-07-2007

power supply problem?

You need to look at the lable on the PSU and state what it's power is and what current each of the voltages support.

Do you have on-board graphivcs or a AGP graphics card. If AGP, what make/model is it.

All your devices, cards, processor, memory etc take power and your PSU may not be up for the job, espacially if you are using an OEM PSU which often does not supply the power it states.
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power supply problem?

so i probably require a new psu yh?
i have a nvidia graphics agp card
i cn tell u tht its ac 230v
i think i will go 4 a new psu
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power supply problem?

for your information the psu has a max 300w
is that ok?
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power supply problem?

300W may be marginal for your system, it depends on the current on the +12V rail of the psu. It needs to be at least 16 amps.

Check the label on the side of the psu.

Also try this psu calculator.
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power supply problem?

there is no 16a on the label
on 12v row it has three values - 12A, -12v and 1A
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power supply problem?

There is your answer, it's 12A output.
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power supply problem?

so i need a new psu?Huh
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power supply problem?

Hi,

Only you can answer that, you need to decide if the number of Watts output is enough for your PC or new pc etc.
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power supply problem?

12 amps on the +12V rail is inadequate for your system.

Did you run the psu calculator link I posted?

What was the answer?

As gadgetboy said, nobody will tell you definitely that you must buy a new psu. Because of the complexities of PCs and the difficulties of doing diagnostics on a forum, it may or may not be the right answer.

Based on the info available I would recommend you buy a new psu of at least 400W and 16A on the +12v rail.

It's then up to you to decide, but please avoid coming back and complaining that you've wasted your money if it doesn't fix the problem.