PC Peripherals Two PSU's powering one system?????

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if length of the cables permit then why not...btw u will have to leave the mobo on table or something coz i dont think u will be able to keep them in a case
 
Can a large case accomodate 2. Switching them on/off together, how could one do it. Some pins on the connector must be assosciated with the power on/off switch. Any tips?
 
There was tut about the same by Darklord .. more than 2 yrs old I guess :P

Try looking for it .. it might be among the first guides/tuts on this forum.

Actually , I'm not even sure if it was on TE :ashamed:
 
Off the shelf the Antec P190 offers something similar.

GamePC - Product.

"Powering all your hardware in this case is the unique Neo-Link dual power supply system. A dual setup of two individual power supplies linked together to give you a total of 1200 Watts of power"
 
There are PSUs bundles at newegg one only for CPU and the other for the rest of the PC. The only adv there is that the CPU PSU is smaller....
 
From what i know there are two side-effects of merely hooking up two PSU's without much thought (the above articles dont seem to have addressed this):

1. Grounding issues/Ground loops. The ground is usually considered as a sort of 'reference point'.. and this reference point can possibly vary between two PSU's leading to unwanted effects with say a serial port that relies on the reference points for its signalling. The other issue is ground loops, when there is more than one path to a common ground point.. these usually introduce some sort of noise/hum. A usual solution is to isolate the other PSU from having any contact with the case or ground wires, apart from that one common ground point.

2. Current flowing frome one PSU to the other. Not all power supplies will output exactly 3.3v or 5v or 12v. Lets assume one of the PSU's outputs 11.9V on the 12V line and the other ouputs around 12V .. current would start flowing from the the PSU with 12V to the PSU with 11.9V (i.e. there's a 'potential difference'). Reverse current flowing back into the PSU is usually harmful for it. A possible fix for this would be having diodes on the lines so that there is no possibility for reverse current flow.
 
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My PC draws approximately 565W with 1 optical + 4 hdd's + 8800GTX + soundcard and people are considering 2 PSU's? :S Get yourself a decent 500W or 600W!
 
i had used two psus sometime back....one to power all components on the mobo and one for the hdds/dvd drives...well i did not connect the psus together...just used them separately to power differrent parts...i had to join two pins of the mobo connector on the second psu to use tht psu...
 
RiO said:
My PC draws approximately 565W with 1 optical + 4 hdd's + 8800GTX + soundcard and people are considering 2 PSU's? :S Get yourself a decent 500W or 600W!
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A 500 or 600 watt PSU is barely good enough for your kind of configuration. If you OC 24/7 you run a high risk of blowing your PSU over a period of time. If you add any other card, like TV Tuner etc, another HDD, a blue ray drive, you very nearly run the limit. In addition capacitors and other components of PSU degrade over time. So if you are powering your rig with a 600 watt PSU now, a year later, the effective rating of the PSU would be around 580 etc.
W
 
techcheat said:
A 500 or 600 watt PSU is barely good enough for your kind of configuration. If you OC 24/7 you run a high risk of blowing your PSU over a period of time. If you add any other card, like TV Tuner etc, another HDD, a blue ray drive, you very nearly run the limit. In addition capacitors and other components of PSU degrade over time. So if you are powering your rig with a 600 watt PSU now, a year later, the effective rating of the PSU would be around 580 etc.
W
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haha! I would beg to differ :P A good friend has 500W Antec PSU and happly runs a 8800 Ultra, 4-5 Hard drives, optical, soun card, all this water cooled with a pump and 4x 120 mm fans
 
techcheat said:
A 500 or 600 watt PSU is barely good enough for your kind of configuration. If you OC 24/7 you run a high risk of blowing your PSU over a period of time. If you add any other card, like TV Tuner etc, another HDD, a blue ray drive, you very nearly run the limit. In addition capacitors and other components of PSU degrade over time. So if you are powering your rig with a 600 watt PSU now, a year later, the effective rating of the PSU would be around 580 etc.

W
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You have no idea what you're talking about... I was at 565W load on an overclocked setup with a 12V DC pump for water cooling. That is with an 8800GTX and a pair of creative speakers hooked up as well ;)

You'd be surprised at what little power your PC consumes...
 
The current 1kw PSU's power SLI-based systems, but it also depends on the number of other components :)
 
greenhorn said:
speakers dont load your psu, AT ALL ,unless they are the ye olde passive variety :P
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Active speakers connected to the UPS will draw power - taking the reading off my UPS, I have to account for it too.
 
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