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Power Suppy question

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September 11, 2012 8:06:36 PM

I been looking around. See this is my setup, I have a 1200 watt PSU connected to a Power Surge protector unit. When my PC starts to rev up trying to draw more power to play a game say Crysis 2 on really high settings or Witcher 2, the PC just shuts off, completely, then starts itself back up again.

I want to see this from every perspective, Im thinking the PSU is faulty, but could their be other reasons? Like maybe the surge protector could be at fault or perhaps it cant draw enough power from the wall thus instead of the wall tripping a power breaker shutting off all power in the room, the PC simply shuts itself off then starts back up?

I basically ordered a new PSU but if this happens again with it, im gonna try to plug it directly into the wall to see what happens.

More about : power suppy question

a b ) Power supply
September 11, 2012 8:17:30 PM

You sure it isn't overheating, no PC will draw 1200W unless you have an overclocked Intel i7 extreme and quad sli.

Download core temp and tell us the temps before it shuts down.
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September 11, 2012 8:37:11 PM

Yea im very sure it isnt overheating, it has LC and Active vents which open to expel heated air when nessecary, all fans are working, I even tested it on Skyrim when you open the map screen and it gives a full render of the overworld in 3D detail? Power just shuts off seconds into that because I expect its trying to draw more power to render it all. It doesnt even have time to heat up.

Im gonna try to get the Core temps. Right now they all read from the Ambient Sensors 27-32C, system fan at 800-900 rpm. Gonna download Core Temp and run one of the games to see what happens.
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a b ) Power supply
September 11, 2012 9:05:55 PM

What PSU is this and what's your system specs.

Need more info.
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September 11, 2012 9:06:23 PM

Before the test running Witcher2. Core Temps for my Intel Core I7 970 (Gulftown) is reading

0:51
1:48
2:52
3:49
4:48
5:51
6: Unknown.

All normal.

GPU Geforce GTX 580 reading

TMPIN0 58 C 58 C 92 C

Fans at 47, 47, 84 percentiles for the 0.96, 0.96, 1.00

The Power Supply is a 1100 watt Alienware brand PSU.

This is before I run witcher 2. Now im gonna run Witcher 2.
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September 11, 2012 9:08:57 PM

CPUs still far below the max limit running witcher 2.

GPU however is at 92, 56, 92 temperatures,

Fans at 84, 46, 84 percentile. Stays that way, no shut down yet, waiting for it.
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September 11, 2012 9:18:08 PM

I'm having this problem too... with i7-3770k @4.1ghz and 660Ti Gigabyte OC version.
I can monitor voltages and they are all fine, then click.. and it cuts out and reboots itself after a few secs
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September 11, 2012 9:18:41 PM

And i have a 750w Antec HCP-750 PSU
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September 11, 2012 9:25:09 PM

Voltages were all fine. CPU all cores were running 10C or lower then maximum. GPU was running around 90Cish with fans at 80 percent. For some reason the system clicked off in Full Screen mode rather then windowed.

Im pretty sure the card was designed to run that hot. All fans are running and working, all vents are running and working.

I went into the event log and I checked. Its Kernal-Power critical event log.
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a b ) Power supply
September 11, 2012 9:27:20 PM

Alienware brand? Give us the voltage sticker on the side and try to identify the OEM for it.

Premade custom pcs usually put crappy power supplies in their comps to cut back on costs so maybe the one you have is not a high quality PSU and is causing you troubles.
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September 11, 2012 9:32:42 PM

Ill try. On CPUID Hardware Monitor its giving these values

+3.3V average 3.36V
CPU VCORE: 0.96
VIN 2: 1.58
VIN3: 0.99
+5V: 5.05V
+12V: 12.14
VIN6: 1.81
VSB3V: 3.36V
VBAT: 3.31V

Those were the values I been seein. Gonna try to find the sticker and OEM. The PSU itself costs around 180 dollars. The replacement I can order from them which is 1200 watt and 80+ Certified is 320.
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September 11, 2012 9:36:40 PM

All are fine... can you try get the voltages when under load? or just watch it and see if any of them drop (or rise) dramatically?
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a b ) Power supply
September 11, 2012 9:36:49 PM

Www.newegg.com <-- heard of this?

But do get us a picture or something of the psu so we can properly identify it. An i7 + a gtx580 is not going to consume more than 350 watts under normal load so a good quality 500-550w unit should be able to do the job just nicely. Still need to see the PSU etc to make an educated statement.
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September 11, 2012 9:39:34 PM

And 90c for the gpu is fine, as it's not at its max and even if it did max, it would throttle to reduce heat. CPU temps are fine
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September 11, 2012 9:42:25 PM

Jus thinking, a 1200w psu? I don't know of any cheapo brands that do that high power lol! even if it is a rubbish one, it should be fine anyway single youd not be putting much load on it at all (about 35-40%)
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September 11, 2012 10:09:09 PM

I tried to get to the PSU Sticker but it would take unplugging everything. I think ultimately the PSU just went bad.

Thing is im also running about 12 gigs of ramp, the system uses that Alienware lighting effects system, thermal cool system, active venting and the liquid cooling. As well as a Killer Xeno Nic Pro network card and a independant SB Sound card. Im pretty sure all of that would amount to even more wattage use. Including the HDD and Disc Drive.

I need to find a program that can super stress the system.

Im gonna try watching the voltages next. See what happens.
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a b ) Power supply
September 11, 2012 10:17:40 PM

You are planing on SLI, correct. Your system power is probably under 500 Watts with a single 580. A 750/850 Watt Quality PSU would better suit your needs - The 1000 -> 1200 is only needed if you plan on SLI.
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September 11, 2012 10:35:20 PM

Yes I am planning on SLI down the road for 3D gaming.

Im trying out new tests. I went and bled any excess power from the system, I now have it plugged directly to the wall socket. Gonna try a PassMark BurnInTest then gonna try running witcher 2 at very high settings and see what happens.
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September 11, 2012 10:40:15 PM

Passed a 43 percent load test for about 5 mins when I stopped, then 100 percent load test same time till I stopped it. Gonna try running Witcher 2 now.
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September 11, 2012 11:00:01 PM

Ran witcher 2 at highest settings, was fine till got to the arena part of the tutorial. Then it just shut off, making a clicking sound then started back on. Kernal Power system error event in the event log. This is with the system plugged into the wall so yea, the PSU isnt handling the higher load properly like it should be. Once the new PSU comes in ill try that out and if that one fails too, then I dunno what could be the problem.

Ill cancel the Dell order since 340 dollars for a 1200 watt seems much. I intended on going the SLI route but I may do it 2 years or so down the road on a brand new computer that ill likely custom build myself. Im gonna go with your PSU suggestions, which one would you honestly pick out of the 4 you chosen?
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a b ) Power supply
September 11, 2012 11:12:17 PM

the X series are one of the best rated PSU's for consumers. Corsair AX and X series are the same. The platinum is a newer rating which is around 2% higher in efficiency compared to the Gold but are not quite yet proven compared to the X's.

All of them are superb units and to be honest any of them is excellent and can pull more than 1000watts without any problem (not recommended).

Seasonic loves overbuilding and underrating their units. In fact; seasonic and seasonic based units are usually the top PSU lines for a lot of companies.
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September 11, 2012 11:21:40 PM

Hmm I cant decide on the Seasonic X or Seasonic Platinum.
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a b ) Power supply
September 11, 2012 11:22:18 PM

Toss a coin.
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September 11, 2012 11:23:37 PM

The X seems to have been tried and very well tested, even has an award, platinum seems to use higher quality components but looks very new. Ill just have to mull it over.
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September 11, 2012 11:30:45 PM

Regardless I just hope the PSU comes with everything it needs. I know Alienware likes to use their own cables and such with their PSUs Im hoping I can still get the Alien FX system and everything running with a non Alienware PSU.
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September 12, 2012 12:06:01 AM

Alright I confirmed it, the PSU is infact OEM in the PC.

So not really sure what route to go now.
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Best solution

a b ) Power supply
September 12, 2012 3:06:16 AM

All PSU's conform to the standard ATX requirements and as such as universally compatible. You can buy a brand new power supply like the antec ea-380d and replace a 250w no name psu from a socket 478 pentium 4 system from 9 years ago and it'll be fine because atx is standardized. All that's been changing for the past decade is how much power is directed into the rails (use to be heavy on 5v/3.3v but now heavy on 12v), efficiency, and quality.

A good power supply will easily last you over 5+ years and span multiple upgrades / updates to a computer. My parents computer runs an Corsair VX450 (old seasonic based model) and i can guarantee its still about as good as it was 3 years ago when i got it for him. In fact; it's going to be the only part that is going to be moved to a new PC i'll be building him in the coming months.

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September 14, 2012 3:44:36 AM

Best answer selected by Alexandrious1.
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