psu question

[k00lance]

I have a pc p&c 850 SSI.
Today I randomly opened smartguardian and noticed rail voltages are changing up and down frequently. Is this a bad sign? :confused:

[Squid_Spit]

no, because software cannot be trusted.

[k00lance]

So it is ok and nothing is wrong?

[k00lance]

I ran every other programs, same result.. up and down constant.

[Esso]

The best method is to verify the voltage using an voltage meter.
(not to mention oscilloscope)

Every PSU's has its minimum power requirement, however the p&c 850 SSI specification does not specify these requirement.

This PSU is suppose to be super good.

Please specify your system components.
How much does the voltage fluctuates ?

Edit, Some links ...
http://www.pcpowercooling.com/technology/power_usage/

[k00lance]

I see +5v rail keeps changing from 5.1~2.
I do not have all my components in since I am testing atm.
X2 core,a gig ram, 1x 7800gtx, 3 sata hd, sc, dvd, floppy.
Not much at all.
Another 850 I have does change too but not as frequently as this one.
I am just annoyed this thing keeps changing every second. :confused:

[Esso]

I have no experience myself with the software voltage testing, but it is not exact.
I wouldn't worry too much.

Here's some programs you might find useful (System information: AIDA32),
http://www.xtremesystems.org/forums/showthread.php?p=1013995#post1013995

Also you are having some good stuff in your PC.
If you could specify your motherboard other members could help you.
Use the AIDA32.

Edit, I really like this PSU, here I have some more information links ...
http://www.xtremesystems.org/forums/showthread.php?p=1035739#post1035739

[k00lance]

both testers have dfi sli-dr.

[AKURA]

both testers have dfi sli-dr.

Like the above person said, check the rails with multimeter. :stick:

Btw, you got a monster of a psu :D

[Dave in Daytona]

(1) No it is not good.

(2) Don't trust software, use a DMM like this: http://forums.extremeoverclocking.com/showthread.php?t=137886

(3) What are your system specs? :confused:
The PC P&C 850SSI is designed for multi-CPU workstations with highend video & at least 8HDD's.
You are probably not suppling enough load to stabilize the 850, especially not enough +5V load.

Good Luck,
Dave :toast:

[s7e9h3n]

Get a Zippy 700W ;) Before I killed mine (don't ask :p: ) it was by far the best performing psu I've ever owned. It was able to hold voltages within .02V of whatever it was set @ on a loaded fx processor:
(Emc2 will recognize the pic ;) )
http://img212.imageshack.us/img212/9030/267bh52lh.jpg

[Dave in Daytona]

+12V@45A & you killed it! :cord:

[s7e9h3n]

+12V@45A & you killed it! :cord:
LOL....not that way....lets just say that psu's and standing water don't mix very well ;) It's currently in the hands of an expert for repair. And BTW, mine wasn't 12v@45a it was:
http://img255.imageshack.us/img255/5131/zippy12v2mz.jpg
:cool:

[Dave in Daytona]

That is out of spec big time! Did you make (mod) it that high? :confused:

[s7e9h3n]

That is out of spec big time! Did you make (mod) it that high? :confused:
Of course ;)
http://img24.imageshack.us/img24/5793/tightsqueeze8uv.jpg
http://img257.imageshack.us/img257/9104/zippyback4ap.jpg
http://img257.imageshack.us/img257/2709/zippypots4ml.jpg
http://img254.imageshack.us/img254/9926/zippysmall7ks.jpg

[Esso]

.......
The PC P&C 850SSI is designed for multi-CPU workstations with highend video & at least 8HDD's.
You are probably not suppling enough load to stabilize the 850, especially not enough +5V load. .....

Dave in Daytona have you seen any specifications about the cross loading requirement for the p&c 850 SSI ?

[Dave in Daytona]

Dave in Daytona have you seen any specifications about the cross loading requirement for the p&c 850 SSI ?Not official ones, however jonnyGURU@SLCenteral can give you some gross guidelines,
they are very close to the Zeus 650W.

Basically +5V@10A or more & +5V@15A for top +12V performance. :toast:

[Esso]

Thanks, it seems it correlates to the spec for the 650W Silverstone ST65ZF-GM PSU.

http://www.xtremesystems.org/forums/showthread.php?p=1035740#post1035740

[Dave in Daytona]

Thanks, it seems it correlates to the spec for the 650W Silverstone ST65ZF-GM PSU.

http://www.xtremesystems.org/forums/showthread.php?p=1035740#post1035740Same: http://www.slcentral.com/silverstone-zeus-st65zf/