Power Supply Issue?

[Nulti]

Hey Community, I've been experiencing an issue that I think evolves around my power supply. Recently after pressing the on button on my PC it starts up for a split second and turns off with no power signal indicated by the green light on my power supply.

After waiting 20 minutes the PC will eventually start, however it will crash after about 5-10 minutes of use and will continually restart after that and crash again after the windows logo.

Should I buy a new power supply?

Notes:
Temperatures are usually cool accordingly to PCWizard
PC works fine after roughly 10 attempts

PC specification: (Dell XPS 8300)
GPU - Radeon 6770
PSU - 460w
CPU - i5
HDD - 1x 1tb 1x 500gb

 

[i7Baby]

You might find that a new power supply won't connect up to your Dell. They sometimes change connectors so that you can't upgrade therm. You'd need to check the current power supply against a new possible (ATX) replacement. See http://en.wikipedia.org/wiki/ATX

 

[Dark Lord of Tech]

The XPS 8300 USES STANDARD ATX power supplies , they aren't proprietary like some of the workstations.


The XFX 550W is OEM sized , so it will fit.


Here's a decent one.

PCPartPicker part list / Price breakdown by merchant

Power Supply: XFX TS 550W 80+ Gold Certified ATX Power Supply ($99.00 @ PLE Computers)
Total: $99.00
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-02-22 16:41 EST+1100

 

[i7Baby]

So get a good quality 400+W replacement per tiers 1,2a or 2b of http://www.tomshardware.com/answers/id-1804779/power-supply-unit-tier-list.html

eg Seasonic 520, XFX550 or Antec HCG 520M

 

[Nulti]

You might find that a new power supply won't connect up to your Dell. They sometimes change connectors so that you can't upgrade therm. You'd need to check the current power supply against a new possible (ATX) replacement. See http://en.wikipedia.org/wiki/ATX

You think I can't use another power supply with the dell? Everything seems normal like 6 power pin connected to GPU and 24 to the motherboard...

 

[Dark Lord of Tech]

Look at my post I explained it above.

It uses standard ATX , I posted a link for a SEASONIC power supply.

 

[i7Baby]

I was saying that you should check. But Blackbird has looked it up and found that it should be a standard ATX power supply. If you think so too then it makes it a lot easier to find a replacement. Try and get a good quality one. Pre-builts as a rule do not have very good quality power supplies.

 

[Nulti]

Look at my post I explained it above.

It uses standard ATX , I posted a link for a SEASONIC power supply.

Alright I'll have a look since this is a temporary computer I'm looking at cutting down the price for a power supply and $100 isn't looking too good.

 

[i7Baby]

Are you in the US ?-

XFX550 - $54 - http://pcpartpicker.com/part/xfx-power-supply-xfxts550w

 

[Dark Lord of Tech]

He's in AUS.

 

[Nulti]

Are you in the US ?-

XFX550 - $54 - http://pcpartpicker.com/part/xfx-power-supply-xfxts550w

Australia, may want to consider these websites.

http://pccasegear.com/
https://www.umart.com.au/umart1/pro/index.phtml?bid=5
http://www.msy.com.au/home.php
http://www.mwave.com.au/power-supplies/power-supplies-psu?display=list&filter=305%3Datx&filteroptions=305%3Dtype

 

[Dark Lord of Tech]

PCPartPicker part list / Price breakdown by merchant

Power Supply: EVGA 500W 80+ Bronze Certified ATX Power Supply ($78.00 @ CPL Online)
Total: $78.00
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-02-22 17:01 EST+1100

 

[i7Baby]

I think in Australia, you need to pay about $100 to get a good quality power supply per tiers 1,2a or 2b of http://www.tomshardware.com/answers/id-1804779/power-su...

eg Seasonic 520, XFX550 or Antec HCG 520M

 

[Dark Lord of Tech]

That's why I listed the XFX , good quality at that price.

 

[i7Baby]

Before PLE arrived in Melbourne, you could only get the XFX from them in Perth. Good to have a bit more competition in the east.

 

[Nulti]

Before PLE arrived in Melbourne, you could only get the XFX from them in Perth. Good to have a bit more competition in the east.

So can we conclude that it is the power supply causing this issue?

 

[i7Baby]

No. We're going on your saying that it is. I gather you tested it or tried another?

You can check your 12v, 5v and 3.3v rail voltages in bios or using your mobo utility software. If any of them are more than 0.2V from target, I'd certainly think about replacing the power supply.

You can also test your case power switch by bypassing it on your motherboard - the paper clip test.

 

[Nulti]

No. We're going on your saying that it is. I gather you tested it or tried another?

You can check your 12v, 5v and 3.3v rail voltages in bios or using your mobo utility software. If any of them are more than 0.2V from target, I'd certainly think about replacing the power supply.

You can also test your case power switch by bypassing it on your motherboard - the paper clip test.

Closest is the 3.3v which is 2.77v is this bad?

 

[i7Baby]

Its a fair bit lower than I'd like. As I said, I'd replace the PSU with a measurement like that. Even if it isn't the cause of your problem.

 

[Nulti]

Its a fair bit lower than I'd like. As I said, I'd replace the PSU with a measurement like that. Even if it isn't the cause of your problem.

In that case my results are very bad:

+12V Voltage : 4.19 V
+5V Voltage : 2.67 V
Processor Voltage : 2.81 V
VIN3 : 1.68 V
VIN4 : 2.78 V
+3.3V Voltage : 2.77 V
VIN6 : 2.22 V
VIN7 : 1.63 V
VIN8 : 1.63 V

 

[i7Baby]

The 12V reading is miles out. Probably enough to stop your PC from firing up.