Daisy Chain 2 PSUs: Safe?
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Daisy Chain 2 PSUs: Safe?
Is it safe to daisy chain 2 power supplies together? Are there any draw backs? Things to keep in mind?
I came across an old thread titled, Can I use 2 pico-psu's together to power my HTPC?
I want to get rid of my PSU but I don't think using one PW-200-M is enough. My estimates tell me I'd be pushing the PW-200-M very close to its limits.
So, why not use something like this:
I know I don't neccessarily need two PW-200-M, but I don't mind getting two to have some room to grow.
What are your thoughts?
I came across an old thread titled, Can I use 2 pico-psu's together to power my HTPC?
I want to get rid of my PSU but I don't think using one PW-200-M is enough. My estimates tell me I'd be pushing the PW-200-M very close to its limits.
So, why not use something like this:
I know I don't neccessarily need two PW-200-M, but I don't mind getting two to have some room to grow.
What are your thoughts?
As he said, it depends on what you mean by "daisy-chain" If you mean wiring the power supplies in parallel I would say that it might work, but is probably a bad idea to try. The picture that you have there is a device that simply turns on both two power supplies on simultaneously when it's signaled from the motherboard when you puch your power button. What most people do when running two power supplies is run the motherboard and processor from one and then all of their other devices (hard drive, video card, ect) from the other.
Those DC to DC PSUs usually make the +12V just a pass-through, and thus require 12V DC as input. Then the +12V capacity only depends on the external brick and how heavy the passthrough cables are.
I recommend that you borrow a power meter that kind of clamps around a wire without touching it (somebody knows the name for sure) and connect a spare regular PSU to your HTPC, then measure the actual needed +3.3V and +5V when stressing your CPU, GPU and drives the way you need.
You might be able to use 2 identical PSUs in parallel, but definitely not in series. You could also try to use the other PSU just for drives and other just for mobo or sth like that.
I recommend that you borrow a power meter that kind of clamps around a wire without touching it (somebody knows the name for sure) and connect a spare regular PSU to your HTPC, then measure the actual needed +3.3V and +5V when stressing your CPU, GPU and drives the way you need.
You might be able to use 2 identical PSUs in parallel, but definitely not in series. You could also try to use the other PSU just for drives and other just for mobo or sth like that.
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I believe the adapter connects two PSU's in parallel mode. I've only worked with car audio so I have a basic understanding using speakers with impedances and acoustical output volume in parallel.
Could someone confirm this via the following link?
http://www.performance-pcs.com/catalog/ ... s_id=21193
Could someone confirm this via the following link?
http://www.performance-pcs.com/catalog/ ... s_id=21193
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- Posts: 32
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- Location: Toronto, Ontario
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If that was a question, then no and yes (in that order):
The power switches these days are momentary, so when you click it this adapter will send the 'on' signal to both supplies. If one is already on, I don't believe that it would turn on a second supply, added afterwards. But then again, you'd never turn the PC on without having everything you need plugged in, so it's probably not a problem.
Hope this makes sense.
The power switches these days are momentary, so when you click it this adapter will send the 'on' signal to both supplies. If one is already on, I don't believe that it would turn on a second supply, added afterwards. But then again, you'd never turn the PC on without having everything you need plugged in, so it's probably not a problem.
Hope this makes sense.
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- Posts: 32
- Joined: Wed Jun 28, 2006 5:57 pm
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