• Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
    Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.

How does dual PSUs work?

S

SomeoneWhoIsntMe

Limp Gawd
Joined
Aug 13, 2005
Messages
362
I've seen cases that can take two PSUs, but I was wondering: how does the second PSU get turned on, and what is it used for?
 
u can usually jump the second PSU by shorting (2) wires...this keeps the PSU on all the time. There are switches that can bridge your current PSU wiring to go on and off with the main system.
 
Typically?
Really, really badly. No +3.3V load, not enough 12V load or no load on the right rail, etcetera. The second PSU's life is dramatically shortened.

I'm still working out how to connect two non-redundants properly. It's not that easy.
 
I've been thinking of doing this. My OCZ-520 doesn't seem to have enough juice for my current rig.

I've done the pin trick and the power supply started. My question is there any danger to power one before the other? Do you have to time it perfectly?

I would like to use my OCZ-520 for the mobo and everything except the videocards. I would use an antec 430 for the 2 7800's.

What would happen if the 2 videocards got power before the mobo? Is there any danger to this?
 
btf said:
I've been thinking of doing this. My OCZ-520 doesn't seem to have enough juice for my current rig.

I've done the pin trick and the power supply started. My question is there any danger to power one before the other? Do you have to time it perfectly?

I would like to use my OCZ-520 for the mobo and everything except the videocards. I would use an antec 430 for the 2 7800's.

What would happen if the 2 videocards got power before the mobo? Is there any danger to this?
Click to expand...
The video cards must be powered by the same PSU that powers the mobo, or you risk damaging both.

You can power drives, fans & bling off a second PSU if you like.

Why do you think the OCZ PS 520W is under-powered?
Test like this: http://forums.extremeoverclocking.com/showthread.php?t=137886

GL ;)
 
You must log in or register to reply here.
Back
Top