How do you link 2 PSU in parallel?

Doraemon · 01-11-2002, 11:38 AM

How do you link 2 PSU in parallel and use that to power the motherboard?

Joe · 01-13-2002, 05:54 PM

http://www.procooling.com/articles/h..._as_one_.shtml

Onda's great write up explains it well.

Brad · 01-14-2002, 07:41 PM

unless you want to do atx psu's

if so then you just cut all the wires and resolder them as a Y. it isn't good for the psu's and you will kill them eventually, but you can get 2x 300w deer's to perform like a pcp&c one

resago · 01-14-2002, 09:09 PM

it would be a lot easier to use some 14 or 12 gauge wire to bridge the voltage points on the pcb board in the PSUs, If you've ever had a PSU open, you see what I'm talking about.

you'd need about 6 wires (I think)

Doraemon · 01-15-2002, 07:09 PM

I read the article in Procooling. There was a link in that article to another source, that source was saying use diode if you want to connect them in parallel, but if I remember correctly, diode will have voltage drop of ~0.7V, which might not be enough Voltage if my PSU is already 11.XX on 12V line.

OnDaEdg was suppose to write something about how to do it, but I guess he was too busy. I read about people who do the Y thingy, that was what I was going, but OnDaEdg and I quote him

"....Some people are just splicing two power supplies together. That is not the correct way to do it, ..."

So what is the correct way?

Thanks.

meck · 06-05-2002, 07:51 PM

aaaaaaa series or parrel i dont see a problem ? as long as they are matched ps.s . same spec??.

Brad · 06-06-2002, 04:52 AM

if they are identical psu's I doubt it would be too much of a problem. My friend has been running 2x 400w psu's in a simple Y to power his 200w athlon for about 6 months now, no problems at all.

But if you linked up an Enermax 350w and a Deer 400w you'd quite possibly have some major problems

01-11-2002, 11:38 AM	#1
Doraemon Cooling Neophyte Join Date: Oct 2001 Posts: 6	How do you link 2 PSU in parallel? How do you link 2 PSU in parallel and use that to power the motherboard? Last edited by Doraemon; 01-11-2002 at 01:13 PM.

01-13-2002, 05:54 PM	#2
Joe The Pro/Life Support System Join Date: Dec 1999 Location: Denver, CO Posts: 4,041	http://www.procooling.com/articles/h..._as_one_.shtml Onda's great write up explains it well. __________________ Joe - I only take this hat off for one thing... ProCooling archive curator and dusty skeleton.

01-14-2002, 09:09 PM	#4
resago Cooling Savant Join Date: Mar 2001 Location: state of denial Posts: 488	it would be a lot easier to use some 14 or 12 gauge wire to bridge the voltage points on the pcb board in the PSUs, If you've ever had a PSU open, you see what I'm talking about. you'd need about 6 wires (I think) __________________ 2.4Ghz Compaq Workstation 2.8Ghz Custom 2700+ Custom still running 2000!!!! Help with Coding www.resago.com

06-05-2002, 07:51 PM	#6
meck Cooling Neophyte Join Date: Oct 2001 Location: grandrapids michigan usa Posts: 5	series power supply aaaaaaa series or parrel i dont see a problem ? as long as they are matched ps.s . same spec??.

06-06-2002, 04:52 AM	#7
Brad Thermophile Join Date: Oct 2001 Location: Nuu Zeeelin Posts: 3,175	if they are identical psu's I doubt it would be too much of a problem. My friend has been running 2x 400w psu's in a simple Y to power his 200w athlon for about 6 months now, no problems at all. But if you linked up an Enermax 350w and a Deer 400w you'd quite possibly have some major problems __________________ 2x P3 1100's at 1400, Abit VP6, 2x Corsair 256mb PC150 sticks, 20gb 'cuda ATA-III, 2x 40gb 'cuda ATA-IV in raid 0. 20" Trinitron. No fans 2x 2400+ at 2288mhz (16.0 x 143), Iwill MPX2, 2x Kingmax PC-3200 256mb sticks, 4x 20gb 60gxp in Raid 5 on a Promise SX6000. Asus Ti4200 320/630. Cooled by Water

01-14-2002, 07:41 PM	#3
Brad Thermophile Join Date: Oct 2001 Location: Nuu Zeeelin Posts: 3,175	unless you want to do atx psu's if so then you just cut all the wires and resolder them as a Y. it isn't good for the psu's and you will kill them eventually, but you can get 2x 300w deer's to perform like a pcp&c one

01-15-2002, 07:09 PM	#5
Doraemon Cooling Neophyte Join Date: Oct 2001 Posts: 6	I read the article in Procooling. There was a link in that article to another source, that source was saying use diode if you want to connect them in parallel, but if I remember correctly, diode will have voltage drop of ~0.7V, which might not be enough Voltage if my PSU is already 11.XX on 12V line. OnDaEdg was suppose to write something about how to do it, but I guess he was too busy. I read about people who do the Y thingy, that was what I was going, but OnDaEdg and I quote him "....Some people are just splicing two power supplies together. That is not the correct way to do it, ..." So what is the correct way? Thanks.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)