Dual PSU Project

[LeoMarionLeo]

I'm interested to put 2 psu's in my machine, but how to turn off all hard drives and other things which are connected to power supply which is not connected with motherboard at the right time??? please answer

[elsinidentidad]

that is not a way to split the effort; you're not load-balancing Watts... that is a high school, project...

[hsnnaqi1]

how can i make the two power supplys work together beacuse i have sli pc and does that safe ????plz help

[tricccple]

this project is NOT safe, best to purchase a quality power supply

[bendibell]

It IS safe. Not in this sense, but it IS safe. You add ground to one of the original's grounds, connect the green wire on the new one in sync with the original's green wire not removing the original's green wire from the 20-pin, plug em' in, plug in yer drives, check your ground one more time, fire it up. My desktop's PSU is not strong enough, so that runs the board and a 250W runs the HDD and CD-ROM drive. I did not drill a hole so I can't close my case, aww, who the hell cares.

[lukasmolin]

@bendibell Or use an adaptor so the PSUs can be selled later if needed

[neonzion7]

@lukasmolin selled wtf lol its called sold...

[lukasmolin]

@hsnnaqi1 Well, this is not safe because simple power supplies dont give to your hardware good energy, but f you pla to do some kind of weird System with fuck1ng 4 GTX480 and wat to use 2 GOOD power supplies than you would be good to go, recommend use an adaptor, so u dont need to cut the Motherboard 24 pin wires to connect they each other, an adaptor is 10 Dollars or less...

[SCARREDMIND]

im currently going to be doing this to power 9800gt cards in sli(both need 400~450w @ 24~28a each without other peripherals to run properly at full load)

so im putting 2 800w psu's together to make sure i have enough juice.

gonna cost me £98(combined) instead of £220 for a 1200w psu that might not even manage the amperage on the 12v rails.

[tricccple]

sounds like a plan

[TheLittleWorldofGaz]

yh i want to put a crossair 1000w with my coolermaster real power pro 1000w, how can i start the second psu anyone?

[SCARREDMIND]

you can buy a connector/splitter so the motherboard can communicate with both.

you could also solder the connections if you have the right gear & know what you are doing.

look up details on google or overclockers forums.

[TheLittleWorldofGaz]

yeah i dont really want to solder my 2 *1000w psus because i dont want to mess it up and be £180 out of pocket but i can only find one of the adaptors on the web do you ahve any keeywords i can search other than "dual psu adaptor"? thanks

[TheLittleWorldofGaz]

and ineed them to be stable as hell

[SCARREDMIND]

hmm, dual psu connector & dual psu adaptor get similar results.

though image search seems to turn up better results.

you could try ebay... but i got fed up & soldered the connections & wires i needed following the instructions i found on google.

what are you making that needs 2x1tw psu's?

[Zenodilodon]

Thats easy :P On an ATX PSU you will find a green and several black wires, The green one usually closer to the center is your PWR On support. the back ones are all common grounds and all you need to do it jumper any of the blacks to the green. it will start up no problems.

[TheLittleWorldofGaz]

can i run 2 psus into the same mobo or would it blow?

[Zenodilodon]

You can, this woudl nto effect the motherboard unless you drew out to much amperage. A circuit will take all the voltage it can get but the amperage is determined more so by the resistance. The more resistance you have the more you draw amps. When you run out of amps to draw from then you start starving the circuit of voltage. As long as all your wires are parallel you will be fine.

[Zenodilodon]

For safety precaution, I strongly recommend having a diode from each PSU before connecting to the ATX plug, This way you will not be running voltage/amperage to the apposing PSU. Not doing so may be detrimental to your power draw and potentially unsafe/ unstable. Other then the ATX connection you will not need to use diodes since the legacy power connector and sata connectors go to indepenant devices and not shared inputs.

[bendibell]

Not a good idea, but you can give your board more juice by using the second one for your drives and such. See my post above to see how to do it without frying anything.

[neonzion7]

@SCARREDMIND idiot

[SCARREDMIND]

@neonzion7 you wanna put a bit of time travel on that one.

like one year back in time? no? lol bell-end.

not like the circuitry is or was difficult to understand, but w/e got a coolermaster case with a 1.2kw psu in it 'cause i got gored with the rough welded engineering of the old case + needed yet more power for 2 280gtx cards

[quasardz]

awsome vid, I was just wondering if i could keep all my components hooked up to one psu and use another just for my graphics card. i dont really know anything about computers but want to get a new graphics card. aparently my old psu doesnt have the wattage to support it and i dont want to have to go out and buy another psu when i have an old 300W one at home from my old pc. thanks

[tricccple]

ur welcome, also, if u google dual psu, there are some simple tutorials on this it's nothing but jump starting a psu really :)

[capridrifter]

I have an old PSU that I modded I removed all the unused wires so I only have the green and a black wire, I just saw another video that said to use the Grey wire.......Did I screw it up? I mean I tested it and it works with a switch but I want to power both on at the same time.

[tricccple]

i'm not sure 100%, but this reminds me something, that old Dell PSU is different layout then more modern PSUs,

just some info, i dunno if it's related

[capridrifter]

The one I used was an old Mitac PSU , I completely gutted the thing all thats left of the main harness is just those two wires the rest is the power outs I think i'm going to use the other motherboard connection (two black and two yellow wires) for running a couple fans and the rest for running hard drives like normal. If I manage to get the thing to power on at the same time as the other one that is.

[tricccple]

u know , stuff like this , i guess just do what u think is right, gotta find out right ^^, that's how i did it, take a little risk,

[capridrifter]

I guess I could run it on a small rocker switch and call it good:( at least it power up I guess...lol

[braddock1233]

great job! but you butchered your case :(

[tricccple]

thanks

it's ok on the case, that case later became a casemod and won a little prize, have videos about it if ur bored enough to watch lol

[bongman4ghz]

am running a xblade target case am not joking man the air flow is crazy i got 1 80mm fam at the front blowing in one 80mm at the side blowing in & another 80mm blowing out at the back then another 80mm fan on the cooler itsself.

i get like 25C idle 43-45C fully loaded.

[bongman4ghz]

yeah & that p3 would run without a cooler.

but not at 100%.

[bongman4ghz]

i cant amagine this would give the system any benefit at all.

i have done 2 motherboards in a case but,

i had a p3 733mhz with a via c3 700mhz in the same case running 2 versions of xp.

[tricccple]

got some pix man, that sounded liek a awsome mod

[bongman4ghz]

it didnt look to good at all.

nothing was screwd in.

the motherboard that was in it didnt move.

it was another motherboard just siting in the case. basicly.

i just made it sound good.

[mrh112]

you should have brought a mosart tx, i have its got lots of room and i got three psu's into it :P

[tricccple]

if one day bills isn't gonna be an issue anymore i would have a proper case

[capridrifter]

You can make your own case, it can be fun amagine what you could stuff into a file cabinet, or well heck you can stuff a computer into an old toilet even!!!<(I havent seen this done yet) google "computer case mod" images....lots of neat stuff:)

[tricccple]

problem is, tools cost, travel to get stuff costs, and material costs or it will cost to make products become material... otherwise i totally would

[capridrifter]

I'm using a card board box reinforced with more cardboard to make my external hard drive's box I'm adding a 2nd power supply and 6 hard drives into this thing, you know how ply wood is made? with crossing grains of the wood....same thing I'm doing with the cardboard it "should" be very quiet and cool when I'm done. I might even spray paint it black someday...lol. i'm very bored and I have a lot of "junk" layin around here;)

[naftafuel]

the 500W wasnt enough for all the other stuff u plugged? i used to have a 300W, i plugged 1 neon to it and it died lol now i have a 400W without neons. i guess if i get a 3870 i will need a 700W??

[tricccple]

nah, that wasn't the reason, I couldn't afford a good pSU ever, so I thought my unsuccessful overclocking have something to do with power supply, my stuborn, i was told it have something to do with the valtage flow , if the psu is stable or not, but i still like to try anyways, see if i let more power ava, even tho it's stupid idea, and from there, it turn out to be an project just to see if it would work

[lollipop2kewl]

Sweet!

[tricccple]

LOL LOL

[RickArter]

Nice job but have at least one side with fan for intake might help.

[tricccple]

Should be just fine, my case is NOT perfectly sealed

[jcstofu]

possible to make triple?

[tricccple]

sure , except no space for it, cheap case

[jcstofu]

nice music

[tricccple]

thank u