Overclock.net - An Overclocking Community - View Single Post - Is my PSU faulty?

View Single Post
post #10 of (permalink) Old 06-19-2019, 12:02 AM - Thread Starter
DiceAir
New to Overclock.net
 
DiceAir's Avatar
 
Join Date: Jul 2012
Location: South Africa
Posts: 1,232
Rep: 10 (Unique: 9)
Quote: Originally Posted by looniam View Post
did you account for psu efficency? (nevermind, just say your reply)

if not than the 450 is 405 assuming 90%. i have a similar set up i7-3770K [email protected] and 980ti bios modded 1.27v/ 350 watts. with both prime95 and kombuster's fuzzy doughnut (really kombusters version of furmark) max load was ~520 watts. gaming and booting into windows ~330 watts idles at ~90 watts. i don't know about you but my rig is on more than just gaming.

maybe i'm weird but i think a psu should fit like a glove ~20% at idle and 80% max load. a 650 watt PSU is 130 to 520 watts and 325 watts for the holy grail 50% load sweet spot.

however if you really want that AX1K here is a german review and its a grea PSU.
https://www.tweakpc.de/hardware/test...ax1000/s01.php

though looking around on the newegg SA site there is a nice looking RM650i
thats half the price and has an excellent rating on jonnyguru
https://www.jonnyguru.com/blog/2015/...ower-supply/6/
(again, just saw your reply - sorry about the newegg links)
if you do want to try and trouble shoot your system w/o another psu, screwing around in the bios and whatnot probably won't help much. even the "paper clip" test will only confirm the psu turns on, which you already know.

its hard to judge what is going on because, well, does it trip off or is this something that occurs when trying to start the system from a cold boot? really try by passing the power button on the case, that is what could be going flaky, if its a cold start up issue. shorting the power pins on the mobo would be the next step?
No problem with the links provided. Oh yeah tried shorting the pins on the mobo. Having the front panel unplugged and then pressing the power button on the motherboard and still nothing. I have the feeling it's to do with the 12v startup voltage. I might do some more testings later or maybe only over the weekend. Currently using an line interactive ups with modified sine wave so I might be able to temporary connect it using another online pure sine wave ups.

power never trips although soemthing weird happened the other day when i switched on my monitor the screen was black but from the very top of the panel to about 5-10cm down there was green blue and purple dots and lines etc. But then all i did was switching my monitor off (not by unplugging but just the power button) and back on it worked just fine. I also did some stress test of different loads from web browsing to watching a video file with hardware acceleration and to gaming and benchmarks and nothing seems weird so far or maybe i don't know that my overclocking/performance is being hindered by the fact that my psu is faulty.


I don't think there is any performance issues related to faulty PSU as far as I know. When I play a game I don't really get where my gpu and cpu isn't being maxed out. The only way I can make my cpu and gpu not maxing out is in games where there is a lot of stuff to draw on screen for example in apex when you jump but that's normal i think. once I land it runs like it should for my system with gpu being maxed out.

I also checked if the fan is working and also checked for capacitor leaking by just looking through grills and where the fan is situated so as far as i can see everything looks fine. One thing I can say is that my psu is pretty old like 7+ years I think so having to buy a new one for the next 7+ years I'm willing to spend a bit more and get a decent psu. I'm not the person that thinks the ax1000 is better than the ax850w just because it's higher wattage. I will ratehr take a 650w-850w that's amazing than a 1000w+ that's worse quality.



Oh sorry for the long reply just one last thing before i forget. sometimes when I do my usual power cycle where i have the press the PSU power switch on and off a few times my pc comes on then goes off and sometimes it goes on and no signal. To fix that have to cycle power switch n PSU again

Gaming RIG

Last edited by DiceAir; 06-19-2019 at 12:37 AM.
DiceAir is offline