Only half powered?

DarkWhite · 11-30-09, 04:12 PM

I've been having some minor issues that I've posted about around here, and the general consensus has been that I should have gone for a higher quality power supply. I accept that, for my first build it's gone pretty well (except ordering the wrong mobo, but that's fixed now).
I was running some OCCT tests, and noticed that my 3.3v was registering as 1.15, while my 5v was at 5.05v
So my issue is the 3.3v and I have a questions to go about it.

Is the number OCCT giving me valid? I've seen the sticky recomending multimeters, but I'd assume that OCCT is close enough for me right now, correct?
Is it possible I've made a simple mistake that's causing this issue?
And third of all, is it possible this is affecting my graphics card?
It's been running significantly under it's stock clock for some time and this may save me some trouble dealing with XFX.

RaidMax RX-730SS PSU
Asus M4A79T deluxe mobo
P2 965
XFX Radeon HD4850
Total of 7 Fans, 1 HDD (SATA), 1DVD (IDE) peripherals

EarthDog · 11-30-09, 04:16 PM

The number OCCT gives you is as valid as you are going to get without a MM. But if it was that low, its out of spec and may not run any perihperals that use that line. So close enough??? ehhh, I would get a MM and test it out if you dont return that massive POS PSU you have there.

Not possible you caused that 3v line to sag, no.

I do not believe that the GPU uses the 3v rail for powering itself..maybe in stnadby or something, I dont know. In normal operation its major load is from the 12v rail.

Just get another PSU as suggested in your other thread..

Bobnova · 11-30-09, 04:28 PM

Get a multi meter, they're $7 at harbor freight and far more accurate then any software voltage reading.
I don't think the computer would be functioning at all with a 1.1v 3.3v line.

DarkWhite · 11-30-09, 05:44 PM

my problem is that I'm a 15-year old kid that spent all his money on his first rig and has 48 cents left in his bank account. A new power supply, especially a quality one, is completely out of the option here.
And under the money thing, I can't get a multimeter either; BUT my high school tech department will probaby have one lying around, would it be possible for me to just bring in my power supply and be able to test it, no computer attached?
Thanks for the responses guys.

EarthDog · 11-30-09, 06:02 PM

If it is the PSU thats causing it and you cant afford to buy one, you are completely out of a functioning PC.

As far as testing it at school. Im sure you could do that however you would have to learn how to jumper a PSU and which items to test.

http://www.google.com/search?rlz=1C1...+to+jump+a+psu

11-30-09, 04:12 PM	Thread Starter #1
DarkWhite Join Date: Nov 2009 Location: Great North	Only half powered? I've been having some minor issues that I've posted about around here, and the general consensus has been that I should have gone for a higher quality power supply. I accept that, for my first build it's gone pretty well (except ordering the wrong mobo, but that's fixed now). I was running some OCCT tests, and noticed that my 3.3v was registering as 1.15, while my 5v was at 5.05v So my issue is the 3.3v and I have a questions to go about it. Is the number OCCT giving me valid? I've seen the sticky recomending multimeters, but I'd assume that OCCT is close enough for me right now, correct? Is it possible I've made a simple mistake that's causing this issue? And third of all, is it possible this is affecting my graphics card? It's been running significantly under it's stock clock for some time and this may save me some trouble dealing with XFX. RaidMax RX-730SS PSU Asus M4A79T deluxe mobo P2 965 XFX Radeon HD4850 Total of 7 Fans, 1 HDD (SATA), 1DVD (IDE) peripherals
	QUOTE Thanks

11-30-09, 04:16 PM	#2
EarthDog Senior PITA Member Overclockers.com Editor Join Date: Dec 2008 Location: Stuck in Maryland...	The number OCCT gives you is as valid as you are going to get without a MM. But if it was that low, its out of spec and may not run any perihperals that use that line. So close enough??? ehhh, I would get a MM and test it out if you dont return that massive POS PSU you have there. Not possible you caused that 3v line to sag, no. I do not believe that the GPU uses the 3v rail for powering itself..maybe in stnadby or something, I dont know. In normal operation its major load is from the 12v rail. Just get another PSU as suggested in your other thread.. __________________ Should I R0 my SSD? / Sandy/Ivybridge Overclocking Guide / Haswell Overclocking Guide / AMD Overclocking Guide / Power Supply Guide SSD Reliability/Write Endurance / JOIN THE BENCHING TEAM! / Bulldozer Overclocking Guide Want to see your writing featured on the overclockers.com Front Page? PM me, I can help! "We have more information and more ways of accessing it than ever, yet seem increasingly less inclined to do so."- Michael Wilbon Last edited by EarthDog; 11-30-09 at 04:21 PM.
	QUOTE Thanks

11-30-09, 04:28 PM	#3
Bobnova Air Superiority Senior Member Benching Team Leader Join Date: May 2009 Location: Humboldt	Get a multi meter, they're $7 at harbor freight and far more accurate then any software voltage reading. I don't think the computer would be functioning at all with a 1.1v 3.3v line. __________________ "Two things are infinite: the universe and human stupidity; and I'm not sure about the the universe." -- Einstein (maybe) How to check your PSU with a multimeter. 17bXw5t51rEBXGavJFMJsC8g7HQgThUGc7 Heatware.
	QUOTE Thanks

11-30-09, 05:44 PM	Thread Starter #4
DarkWhite Join Date: Nov 2009 Location: Great North	my problem is that I'm a 15-year old kid that spent all his money on his first rig and has 48 cents left in his bank account. A new power supply, especially a quality one, is completely out of the option here. And under the money thing, I can't get a multimeter either; BUT my high school tech department will probaby have one lying around, would it be possible for me to just bring in my power supply and be able to test it, no computer attached? Thanks for the responses guys.
	QUOTE Thanks

11-30-09, 06:02 PM	#5
EarthDog Senior PITA Member Overclockers.com Editor Join Date: Dec 2008 Location: Stuck in Maryland...	If it is the PSU thats causing it and you cant afford to buy one, you are completely out of a functioning PC. As far as testing it at school. Im sure you could do that however you would have to learn how to jumper a PSU and which items to test. http://www.google.com/search?rlz=1C1...+to+jump+a+psu __________________ Should I R0 my SSD? / Sandy/Ivybridge Overclocking Guide / Haswell Overclocking Guide / AMD Overclocking Guide / Power Supply Guide SSD Reliability/Write Endurance / JOIN THE BENCHING TEAM! / Bulldozer Overclocking Guide Want to see your writing featured on the overclockers.com Front Page? PM me, I can help! "We have more information and more ways of accessing it than ever, yet seem increasingly less inclined to do so."- Michael Wilbon
	QUOTE Thanks

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