Should i replace my power supply

Amd Phenom ii x2 555 3.20 ghz processor...
April 13, 2017 at 08:14:43
Specs: Ubuntustudio 12.04, 3.2 dual core/8gb
I have been given a more powerful power supply than the one i have in my desktop. Is there a max that a machine can handle? This is the new one http://www.coolermaster.com/powersu...
and the old one is http://i273.photobucket.com/albums/...
I dont remember the model of this desktop and i have linux installed. Looking at the system profiler but cant see where a model is listed. Just that it is has AMD Phenom II x2 555. Thanks appreciate the help as have only replaced the psu twice in a few years

"The meaning of life is to be happy and useful" Tenzin Gyatso the 14th Dalai Lama


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#1
April 13, 2017 at 09:51:30
To answer your question. There is no rule that a PSU can be too large a capacity. That said, over the years voltage requirements for the three main voltages supplied by a PSU have changed to utilize the +12V rail more and the +3.3V and +5V less. Your photo doesn't show which ATX version that PSU is.

See the link below for an understanding of the progression of the ATX standards for PSUs.

Your current PSU specs show too much capacity on the 3.3V and 5V rails while the +12V is marginal.

The 850W PSU is overkill for almost all modern builds due to the the smaller die sizes in use today for CPU and GPU chips. A few years ago some high end Graphics cards pulled close to 200W by them selves and boards were designed to use two or three of these. AMD still has 125W/140W CPUs in production.

I suggest you install HWMonitor and see how your current PSU is performing at idle and under load. The 3.3, 5, and 12V rails should all read +- 5% of the stated values. If that is not what you are getting then you may want to swap it out at that point. This assumes the 2 units are the same form factor, which also part of the ATX standards.

https://en.wikipedia.org/wiki/ATX


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#2
April 13, 2017 at 14:20:21
The photobucket pic you posted is definitely an old PSU. As OtheHill pointed out, the amperage ratings are all wrong for a modern computer. The high amps on the +5v & low amps of the +12v means it was made for pre-Pentium 4 systems, so I wouldn't use that for anything other than a Pentium 3 system or older. SO...should you change it? YES, definitely! ASAP!

message edited by riider


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#3
April 14, 2017 at 07:20:04
OK sorry i didnt understand much. I dont know what ATX is altho i know thats written on my psu that is installed. OK so it is overkill...is it meant for gamers? I do edit music videos. Would it make things better for that? Sorry took me ages to respond. Long weekend in sydney.
Oh this is odd:
$ sudo apt-get install HWMonitor
[sudo] password for xxxx:
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package HWMonitor

OK so have it idle or underload....under load would be like rendering a large video i have edited? Thanks

"The meaning of life is to be happy and useful" Tenzin Gyatso the 14th Dalai Lama


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Related Solutions

#4
April 14, 2017 at 07:22:02
Oh i only changed the PSU last year. New from a shop that sells modern stuff only. I thought he was saying that it is not needed...which is what i understand overkill to mean

"The meaning of life is to be happy and useful" Tenzin Gyatso the 14th Dalai Lama


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#5
April 14, 2017 at 09:06:01
Post the ATX version on the current power supply. It will be on the label. The link below is for on link to HWMonitor.

http://www.cpuid.com/softwares/hwmo...


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#6
April 14, 2017 at 17:25:58
"i only changed the PSU last year"

Changed it from what? And why did it need to be changed?

"New from a shop that sells modern stuff only"

The PSU in the photobucket pic is not modern. It's probably an ATX12V version 1.x but it won't tell you that on it's label. A "modern" PSU would be ATX12V version 2.x. If you don't understand the difference, check the link posted by OtheHill in response #1.

Look at the specs for the 850W. It's described as "Intel Form Factor ATX 12V V2.31". It's also "Gold Certified" & rated as 93% efficient at 50% load. You didn't post specs but I doubt your system comes anywhere close to consuming 50% of 850W (425W), so that means the PSU would actually consume much less electricity (at the wall plug) than the outdated/inefficient/low end Autrix 450W PSU. BTW, do a search for Autrix power supplies & see what you come up with. Not much. Than in itself should tell you something.


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#7
April 15, 2017 at 00:55:36
OK will get that later. I can only see windows version of that software. I am using Ubuntu

"The meaning of life is to be happy and useful" Tenzin Gyatso the 14th Dalai Lama


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#8
April 15, 2017 at 00:57:50
Oh ok i dont know much about this. Not heard of it before. OK i dont understand the differences. Will look deeper later

"The meaning of life is to be happy and useful" Tenzin Gyatso the 14th Dalai Lama


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#9
April 15, 2017 at 06:59:34
Boot into the BIOS screens and check the voltages there. Won't be under much load but should give you an indication of the condition of the PSU.

I agree with riider that you should probably change the units out.

I was inferring that the vendor you bought the current PSU from was not being honest with you. May have been a new unit but manufactured long ago.


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#10
April 15, 2017 at 07:47:47
The 850W CoolerMaster PSU is an excellent unit, the 450W Autrix is not. Swap them out before it's too late.

"I was inferring that the vendor you bought the current PSU from was not being honest with you. May have been a new unit but manufactured long ago."

I agree 100%.
rapattack - the vendor took advantage of your lack of PSU knowledge & sold you a crappy unit. The PSU is probably the most important component in a desktop PC but it's also the least understand. I suggest you take the time to learn about them before you get ripped off again.

http://www.playtool.com/pages/psuco...

http://www.hardwaresecrets.com/ever...

http://www.pcworld.com/article/2025...


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#11
April 15, 2017 at 07:53:39
http://i273.photobucket.com/albums/...

So swap the psu's? sorry unclear.
The vendor is msy.com.au . They have a physical shop as well and thats where i go. Maybe because everything in australia is old we are getting ripped off?

"The meaning of life is to be happy and useful" Tenzin Gyatso the 14th Dalai Lama


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#12
April 15, 2017 at 07:58:20
OK good i was given the new psu then...thanks :)
Oh ok thanks will read up when i get time. So sorry but its honestly hard with lack of time and energy(medical condition). Oh they didnt advise me btw. I looked at the psu before and matched it. Or maybe went slightly higher in specs but i honestly dont remember. msy.com.au is where i get a fair amount of parts. You walk in knowing what you want, you ask if still available(after u check list on their website) , you pay and walk out. They dont display anything and not into talking to you.
Good to know the psu is so important thanks. Will probably have time in a few days to swap

"The meaning of life is to be happy and useful" Tenzin Gyatso the 14th Dalai Lama


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#13
April 15, 2017 at 07:58:52
http://s273.photobucket.com/user/ra...

"The meaning of life is to be happy and useful" Tenzin Gyatso the 14th Dalai Lama


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#14
April 15, 2017 at 08:41:37
If they didn't advise you which one to buy, you simply made a poor choice. You should never select a PSU based on wattage alone. There are numerous specs that must be considered & wattage is NOT the most important thing to look for. Hopefully the links in response #10 will help.

BTW, what are you trying to show us in that BIOS screenshot? The only thing I see is the RAM is running at the wrong speed. It should be DDR3-1333 running at 667MHz, not DDR3-800 running at 400MHz. Did you choose the wrong RAM or is the BIOS configured wrong? Also, if the temperature reading of 45C is at idle, the CPU is running too hot. That usually means the CPU cooler was installed incorrectly or it's full of dust.

message edited by riider


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#15
April 15, 2017 at 08:58:12
The voltages appear to be with the +-%5 range, which is good.

45c is high for CPU idle temperature. 3068 CFM is high. Must be noisy. Possibly a cooler that wasn't designed for the CPU?

message edited by OtheHill


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#16
April 16, 2017 at 05:20:15
Yeah i dont remember. I might have got advise from a forum. Its a while back. Someone asked me to screenshot the voltage in the bios. The other one i screenshotted is just basic stuff i thought might be useful.
Oh i didnt know that about the ram. I upgraded and thought it was ok. It is more ram than before. Was originally half that amount. Anyway was a while back and dont remember. Oh i did do a clean a while back and might need it again. Plus have several fans in there...will check everything when i get a chance.

"The meaning of life is to be happy and useful" Tenzin Gyatso the 14th Dalai Lama


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#17
April 16, 2017 at 05:21:55
Oh ok so need to go to new psu asap...well when i can get to it :( sorry its hard to pull out machine and where its positioned...thanks for advice

"The meaning of life is to be happy and useful" Tenzin Gyatso the 14th Dalai Lama


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#18
April 16, 2017 at 07:17:06
Hi i have opened the computer and was putting the new psu but on the back where i put the cables in one cable i am not sure of. The power cable one there is on the psu there is a 10p or 18p...do i put it in both or either? I dont understand the difference or what this means http://www.coolermaster.com/powersu...

"The meaning of life is to be happy and useful" Tenzin Gyatso the 14th Dalai Lama


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#19
April 16, 2017 at 09:20:28
There shouldn't be any 18P connector. I assume you mean Pin by the P?

You new power supply has a 20 + 4 main power connector. That connector usually comes with the 4 pin connector attached to the 2 row 20 pin connector. If it isn't then slide the connectors together. They should be in the same bundle. They only go together one way so you can't connect them wrong.

You motherboard should have an 8 pin CPU connector which is 2 rows of 4 pins. The connector can be separated into to parts, each one being 2 rows of 2 pins. They also slide together so you can't get them wrong.

If you don't have a powerful add in Graphics card you don't need to use any power leads for that.

You shouldn't have disconnected the case to board wiring or the USB, etc. The CPU fan should be a 1 row 4 pin connector marked CPU.


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#20
April 17, 2017 at 01:10:42
http://i273.photobucket.com/albums/...
i know this is not a good pic but here it is. I dont know what is a pin by the p sorry. It has the right plug to go into the MB but two different on the other end of the cable to go into the psu. I dont know if both r supposed to be plugged in or one...or which one?
yes the graphics card need the power cable. Worked out all the other cables and connectors so thats sorted. I havent disconnected anything else.

"The meaning of life is to be happy and useful" Tenzin Gyatso the 14th Dalai Lama


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#21
April 17, 2017 at 01:37:56
The colors of the power-wires should tell you what goes were on the motherboard:
https://itec226pro.wordpress.com/bu...

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#22
April 17, 2017 at 01:39:34
http://i273.photobucket.com/albums/...
http://i273.photobucket.com/albums/...

"The meaning of life is to be happy and useful" Tenzin Gyatso the 14th Dalai Lama


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#23
April 17, 2017 at 01:40:37
no colours...alll black. there are photos above

"The meaning of life is to be happy and useful" Tenzin Gyatso the 14th Dalai Lama


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#24
April 17, 2017 at 05:46:51
The 18 pin plug obviously goes into the 18 pin socket on the power supply. Same goes for the 10 pin.

The other end of the 18 pin should be for the main motherboard power.

Download the manual for that PSU from the link below for help with the wiring.

http://www.coolermaster.com/powersu...

These connectors are keyed so that it is hard to connect them wrong.

message edited by OtheHill


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#25
April 17, 2017 at 07:00:13
Yes i wasnt sure if both had to be plugged in at the same time. Since the other psu's i have used i havent had to plug anything into the psu itself. They just had wires coming out

"The meaning of life is to be happy and useful" Tenzin Gyatso the 14th Dalai Lama


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#26
April 17, 2017 at 08:57:53
If you are not using a particular lead then you don't need to plug it into the PSU. That is the advantage of a modular unit. You do need to connect a 24 pin main connector and an 8 pin CPU connector. Also, whatever type connector your Graphics card requires.

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#27
April 17, 2017 at 09:16:03
Oh thanks well all seems to be well. I finally got it all together. Took a while as i realised my case is rather small. Might see if i can grab a larger case tomorrow as i did see one at a friends place that was offered to me. The psu is rather longer than the old one. It is quieter which is nice. I need one more extension cable because a usb card hasnt got its powered connector. Its ide and the cable i am using for the dvd drive is using that one cable. The 2nd or third connection on that cable doesn't extend down to the usb card. Anyway its not urgent ....thanks everyone for helping me :) http://i273.photobucket.com/albums/...

"The meaning of life is to be happy and useful" Tenzin Gyatso the 14th Dalai Lama

message edited by rapattack


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