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Dual PSU guide? - Page 3

post #21 of 26
Quote:
Originally Posted by All3n View Post

Are you saying your tower came with a connector cable for joining any two random power supplies together?(Electrically parallel)
I would be very surprised if it did.
The point being if you joining two transformers together, the need to be identical.
PSUs in computers are not transformers, they are switch mode power supplies.
Any adapters I have seen are simply for triggering the power on multiple independent PSUs.
OT: Generally speaking, hooking non-identical transformers together is a bad idea and at the very least should be protected by some diodes. Same for switch mode power supplies, diodes in addition to load balancing resistors should be used at a minimum. Also conventional tansformers must absolutely be in phase.
If you want to use two power supplies, only join them by their trigger wires. Example one PSU powers the motherboard and drives, the other PSU powers the graphics card and fans.
Maybe that's what the OP intended, I am not sure, just wanted to clarify that for anyone reading this.

I think the main point being made is that you are not connecting two PSU's per say, but making them both start together, one powering some components, the other powering others, and a way to do that is with a jumper, which my case came with. With a motherboard only allowing one 24pin connection. I believe that's what the OP stated, for two PSU to drive certain components. Apologies for being unclear.
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post #22 of 26
Quote:
Originally Posted by HandGunPat View Post

You're a cool uncle. If you have the cash to buy him a new rig power to you man! If not, buy him a new graphics card or a power supply. I'm sure he would be greatly appreciated either way.
Once the rig is complete he must post on the forums and tell the story about his rig! My parents helped me when I was 13 to build my first computer, and it's lead me to a successful career in the IT field and also many national competitions won in high school. +rep to you sir! thumb.gif
I was 12 on my first, built it all by myself out of my dads old bits and bobs.
A pentium 4, a gig of ramzzz, and 4 IDE hard drives, ranging from 12GB to 120GB. luuul
The look on his face when he returned from work and saw what I'd done. (happy and proud, but mighty annoyed xD)

Quote:
Originally Posted by Jixr View Post

buy a psu, hide it somewhere, and let him find it?
This is a good plan, or buy one and say you already had it, as I said earlier, they're only 40 quids.

Quote:
Originally Posted by XFZhong View Post

Wait what, you have two 5970's? o.0 Lol. It's about making sure the child respects the adult's decision, and for the uncle to back up the mother, which I guess is the OP's dilemma here.

True but, imho, the mother has made an unfair decision and is staving the kid of a pc with freaking 10 year old hardware?! C'mon!!
I *had* two 5970's, In my nzxt vulcan and I loved it, unfortunately they were not mine and I had to return them to my cousin as he wanted to leave them folding 24/7.
I made a thread a while ago regarding buying a pair for £400, but I was stampeded on and convinced to buy a 7950 3GB by ocn. 'twas a great decision, powers my monitors great.
I'm yearning to upgrade to a MSi R7970 Lightning, though.
post #23 of 26
So you're buying from UK?.. this would do just fine and the price is excellent.
post #24 of 26
Quote:
Originally Posted by Jixr View Post

buy a psu, hide it somewhere, and let him find it?
Best idea so far!
They would never know...
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post #25 of 26
Quote:
Originally Posted by Mhill2029 View Post

I'm a bit unsure about this since it's something done by many enthusiasts. I'm considering it for 4x 7970 Lightning BE's, as i'm unsure any single unit would be upto the task.

Psh, puupuu single units arent up to the tast but:

http://www.overclock.net/t/1332309/mpc-rosewill-could-power-a-small-city-with-hercules-1600w-psu/0_100

meh,1600w, good brand, what could go wrong.

(You gonna need a good ac outlet boy)
post #26 of 26
And moreover, it wouldn't even be that much of a stretch. He did after all have a 3870X2 just knocking around, so the possibility of "Oh! I just forgot I put this unopened 650W PSU in a drawer and forgot all about it" isn't too unbelievable.
 
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2x Samsung 840 EVO 2x Western Digital 4TB RED All Loops: Noiseblocker Blacksilent Pro 120mm Loop 2: Mayhems Pastel Mint Green 
CoolingCoolingCoolingCooling
Loop 3: EK-FB KIT SR-X CSQ Nickel/Plexi Loop 3: Alphacool NexXxos Monsta 120mm Loop 3: Mayhems Pastel Red All Loops: Aquacomputer Aqualis 450ml w/ Pump A... 
CoolingCoolingCoolingCooling
All Loops: Bitspower Straight Compression 3/8ID... All Loops: Primochill Primflex Advanced LRT - C... All Loops: Swiftech MCP655 w/ Aqualis Pump Top Aquacomputer Aquaero 5 Pro 
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