• 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.

-5v and -12v not needed?

Tengis

Tengis

Supreme [H]ardness
2FA
Joined
Jun 11, 2003
Messages
6,507
They are fluctuating on my PSU, does that matter? I looked in the faq and it said they arent even included on some newer psus... so Im assuming I dont need them.


Sorry mods for all my posts in this section... Im just really tired and Im trying to figure some stuff out about PSUs.
 
Yep, they fluctuate so much because there is no load on them. When switched-mode power supplies have no load on them, they can't regulate properly, hence what you are seeing. No worries mate
 
Some soundcards and RS232 ports use them.

An old motherboard I had used negative voltage to power something in the CPU core regulator, and when I tried making a car PC out of it without the -5/-12 lines, the fucking thing popped a P166MMX on me :(
 
gee said:
Some soundcards and RS232 ports use them.
Click to expand...
To be precise, EIA232 (serial) ports use +12V (HIGH) and -12V (LOW) for signaling.

-5V isn't really used by anything anymore, so it's missing on a number of PSUs (MicroATX, Mini-ITX and SFF PSUs, for example).

It kind of sucks when you want to use an ATX PSU for an AT system, though =/
 
You must log in or register to reply here.
Back
Top