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Need help is my PSU degraded ?

J

jofrie

Junior Member
I will report back when i fixed the problem i just hope its not my mobo.

So i replaced my GTX295 with a GTX670 now i can battlefield without my pc shuts off and goos on again on hes own which is the problem.

Now when i Furmark and Prime 95 at the same time this still happens, with the gtx670 after 10 or 20 seconds.
PSU BAD ??? remember i played BF3 with GTX295 for a year till this happend then upgraded to gtx670
I ugraded my case yesterday to stormtrooper, before i had 13 year old samurai case with limited fans. And only 1 HDD and the problem then to
accured. And the temps are acceptable.

Specs are,
OCZ modxstream 600
GTX670
i7 980 (not the X) Noctua nh-d14
ga-ud3r-x58a
CM stormtrooper
2xhdd samsung
1xssd vertex 3
 
The fact that this happens when you stress the machine out does indicate a potential PSU problem. A ModXStream is not a spectacular PSU, so I wouldn't be surprised if it were giving out.
 
mfenn said:
The fact that this happens when you stress the machine out does indicate a potential PSU problem. A ModXStream is not a spectacular PSU, so I wouldn't be surprised if it were giving out.
Click to expand...

Thanks for fast respond, hope more will follow i check back in 16 hours and again thanks i will go to shop and let them check the ocz. Meenwhile i will order corsair TX850. might take 14 days as i need a ride to the shop and my ocz is still in warenty for 6 months. Hope i get soon at this shop for the corsair and warenty.
I tested BTW with OCCT and furmark lasted 3 minuuts tho i cancelt it while prime95 and furmark can not last 20 seconds. Thanks again reporting soon.
 
The platform the TX 850 V2 is based off of is the Seasonic M12II. While it is still very good, is eclipsed the the SS-650KM and the other, bigger, X-series Seasonics.

If it is your PSU that is dying, your PSU dying is not due to too much wattage is being pulled through the unit, as the GTX 295 is more of a guzzler than the GTX 670, but rather some internal part(s) is/are dying, probably a capacitor.

You might need to check to make sure the board isn't being shorted via contact with the case.
 
Torn Mind said:
The platform the TX 850 V2 is based off of is the Seasonic M12II. While it is still very good, is eclipsed the the SS-650KM and the other, bigger, X-series Seasonics.

If it is your PSU that is dying, your PSU dying is not due to too much wattage is being pulled through the unit, as the GTX 295 is more of a guzzler than the GTX 670, but rather some internal part(s) is/are dying, probably a capacitor.

You might need to check to make sure the board isn't being shorted via contact with the case.
Click to expand...

Thanks
Nice info on the PSU now iam staying a step back from TX850.
Somone can tell me maby what PSU is xtreem good with 850W?
Wanne do some overclocking and i want some more juice then i have now.
Owyea i also checked like 10 times if something shorted via contact first thing i thought about to nice help here.
 
It realy is the Stress test causing my pc shuts off and powers on by its own.
i remember with gtx295 when repairing tank Boom pc off. or when a explosion was near.
No problems now with GTX670 on battlefield. But when i clock CPU to 4.2 GHZ pzz again the problem but with metro last light bench. on 4ghz is goos trough whole bench.

Now when i have CPU not overclocked standaard 3.33 Prime and Furmark PZzzz pc off
Realy anoying and hoping psu will fix it. like i sayed i need ride to shop and still asking myself what PSU is xtreem good. hoping for a ride withing 10 days. Thanks again for the responses.
 
The TX850 is an excellent unit and is of high quality, but it has merely been supplanted by newer Seasonics. Your system is not going to pull close to 800 watts unless you add another GPU so the Seasonic G650 should be sufficient for your needs while costing a little less than the TX850.

Or, the S12II 620 W (same platform as the TX850 V2) can be had for much cheaper.
 
Torn Mind said:
The TX850 is an excellent unit and is of high quality, but it has merely been supplanted by newer Seasonics. Your system is not going to pull close to 800 watts unless you add another GPU so the Seasonic G650 should be sufficient for your needs while costing a little less than the TX850.

Or, the S12II 620 W (same platform as the TX850 V2) can be had for much cheaper.
Click to expand...

I can fast buy PSU from mycom near here and go for warenty to alternate later.
What PSU you think is the best one that does't defect fast and might be good for some cpu overclock and little gpu overclock and maby later adding other 670 gpu.

I can buy a Corsair TX850 for 113 euro
Corsair TX750 for 100 euro
And the TX650 82 euro

Iam thinking the TX750 is excelent what do you think ?

Iam ready to spend 100 euro for the TX750 from mycom.
Or is the TX650 more quality? Think iam going for the modable psu.
http://www.mycom.nl/hardware/voedingen
 
T_Yamamoto said:
TX650 would be fine.
Click to expand...

I think i will pick up the Corsair TX750 for the 20 euro more.
I leave the TX850, its 10 euro more but i think it will be to much of a overkill.
Hope i wont get strange noises out the psu becuase i found some complains.
But i hope this fixes the problem i try get the TX750 soon unless somone says i should buy other one ^^
 
jofrie said:
I think i will pick up the Corsair TX750 for the 20 euro more.
I leave the TX850, its 10 euro more but i think it will be to much of a overkill.
Hope i wont get strange noises out the psu becuase i found some complains.
But i hope this fixes the problem i try get the TX750 soon unless somone says i should buy other one ^^
Click to expand...
20 euros isnt alot but 10 is.

logic not found.
 
Torn Mind said:
The TX850 is an excellent unit and is of high quality, but it has merely been supplanted by newer Seasonics. Your system is not going to pull close to 800 watts unless you add another GPU so the Seasonic G650 should be sufficient for your needs while costing a little less than the TX850.

Or, the S12II 620 W (same platform as the TX850 V2) can be had for much cheaper.
Click to expand...
=

I did some search and found Corsair AX 760 for 150euro.
Iam willing to pay as i readed even a good branded psu can degrade 10% in a year. I might use it for future to then and seems a psu works best at 60% load so is it better to have a bit extra watt ?
Also got stable clock on my i7 980 now on 4.2ghz on standard 1.367v
And going for 100+ core and 300mem on gpu. Thanks in advance for maby smashing the AX760 or recommend it to me.
 
mfenn said:
That is FUD, plain and simple. The TX650 will be more than fine for a GTX 670 system.
Click to expand...

Oki i hope u are right, i dont want to buy again other PSU next year.
I will think about it one more night. My thought was that my computer now draws around 450W full load i think extreme power suply calcelated this so i thought it would be more efficient if i buyed an 760W platinum. Is't that better for the electricity bill ? And the more watts maby becuase it might degrade some ? Or everyone disagrees on this ?

Thanks for thinking with me, cant wait to see my pc not crash while GPU and CPU stress on same time. Still playing battlefield 3 tho
 
Last edited:
That 10% measure is most likely derived from approximating of capacitor degradation and erroneously applied to everything in the PSU. The effects will not be noticeable until the capacitance goes below a certain threshold or ESR(equivalent series resistance) goes above a certain threshold. I don't think wattage output decreases, but rather voltage regulation becomes worse and ripple control also becomes worse.

Capacitors have a rated lifetime at a certain temperature. Roughly speaking, lifetime doubles as temperature decreases by 10 degrees Celsius. So, hypothetically speaking, if a lower quality cap rated for 2000 hrs at 85 degrees Celsius is run constantly at 45 degrees Celsius, it would last approximately 64000 hrs or 7.3 years. 1 divided by 7.3 is almost 14%. Perhaps that is how that number came to be. :hmm:

The AX760's caps should last a long while due its high quality caps; it uses solid state capacitors and Japanese electrolytic capacitors. The TX650 V2 is no slouch though. It too uses high quality capacitors.

X-bitlabs did test an i7-980 a 4.2 Ghz, and they system power consumption measured at the wall did not go over 450W until they ran LinX+Furmark, which are unusual and unrealistic high loads.
http://www.xbitlabs.com/articles/cpu/display/power-consumption-overclocking_16.html

Even the aboslute maximum of 530 (at the wall, not at the components, I believe) can be handled easily by the TX650 V2.
http://www.hardwaresecrets.com/article/XFX-PRO-650-W-Core-Edition-Power-Supply-Review/1165/8
The XFX is essentially the same as the TX 650 V2. As you can see, the unit could handle pulling 720 watts on the 12 volt rail on the overload test.
 
Torn Mind said:
That 10% measure is most likely derived from approximating of capacitor degradation and erroneously applied to everything in the PSU. The effects will not be noticeable until the capacitance goes below a certain threshold or ESR(equivalent series resistance) goes above a certain threshold. I don't think wattage output decreases, but rather voltage regulation becomes worse and ripple control also becomes worse.

Capacitors have a rated lifetime at a certain temperature. Roughly speaking, lifetime doubles as temperature decreases by 10 degrees Celsius. So, hypothetically speaking, if a lower quality cap rated for 2000 hrs at 85 degrees Celsius is run constantly at 45 degrees Celsius, it would last approximately 64000 hrs or 7.3 years. 1 divided by 7.3 is almost 14%. Perhaps that is how that number came to be. :hmm:

The AX760's caps should last a long while due its high quality caps; it uses solid state capacitors and Japanese electrolytic capacitors. The TX650 V2 is no slouch though. It too uses high quality capacitors.

X-bitlabs did test an i7-980 a 4.2 Ghz, and they system power consumption measured at the wall did not go over 450W until they ran LinX+Furmark, which are unusual and unrealistic high loads.
http://www.xbitlabs.com/articles/cpu/display/power-consumption-overclocking_16.html

Even the aboslute maximum of 530 (at the wall, not at the components, I believe) can be handled easily by the TX650 V2.
http://www.hardwaresecrets.com/article/XFX-PRO-650-W-Core-Edition-Power-Supply-Review/1165/8
The XFX is essentially the same as the TX 650 V2. As you can see, the unit could handle pulling 720 watts on the 12 volt rail on the overload test.
Click to expand...

Thanks very much i gone try pick up the corsair AX760 within 7 days i will let you know as soon as posible when i stressed gpu and cpu on the AX760. I will lay down the PSU first next to the case as if it fails i return it to shop and all my hardware will go to alternate for warenty.
I choice this becuase maby one day i might get SLI or crossfire beast who knows. Also readed the AX760 is very good so iam ready to spend some more for this nice PSU.
 
im guessing a psu problem and its effiency.

its not holding up to the power, hence your system is rebooting each time peak voltage is being hit.

stop testing it like this.... its a fast way to fry your computer from sudden power cut.

EDIT: ack im late...

glad to see u got a AX .. i have an AX1200 absolutely love it...
Its handled up to 900W peak without any problems...
 
jofrie said:
Thanks very much i gone try pick up the corsair AX760 within 7 days i will let you know as soon as posible when i stressed gpu and cpu on the AX760. I will lay down the PSU first next to the case as if it fails i return it to shop and all my hardware will go to alternate for warenty.
I choice this becuase maby one day i might get SLI or crossfire beast who knows. Also readed the AX760 is very good so iam ready to spend some more for this nice PSU.
Click to expand...

The AX760 is straight-up a waste of money. You will never ever make up the initial cost difference via increased efficiency.

Really, efficiency has absolutely nothing to do with a PSUs ability to deliver its rated power. PSUs are always rated by their DC-side output, in other words efficiency losses are already accounted for. For example, a 650W 90% efficient power supply will actually be drawing 722W from the wall when maxed out.
 
Thanks everyone it was indeed my PSU. I picked up the AX760 today, i agree
its a bit to much juice but i hope i can use this baby for next 10+ years.
 
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