I think I need a bigger PSU or I have a bad CPU

Hello guys, I'm a computer technician and I run my own shop here in San Juan, Puerto Rico. I build customized gaming system and little by little I'm begging to make really carve out a good niche here.

Even though I have many years of building PCs there are sometimes thing I'm either just not seeing or plainly don't make sense. See, I sold a custom gaming system to a client of mine and about the 1st month he started getting what we think are overheating problems.

Here are the specs, please refer to my squarespace site to view pictures and specs on the machine (I assure there's not malware nor money scheme), its just a very detailed specs on the machine which I do not want to re-type, go to: www.gobanditech.com/signature-pcs/darth-russian

We used prime 95 and it said it was ok. Afterwards we algo used.... (forgot its name) another stressing software and whenever the CPU gets abot 65 or more we are in danger zone and and moment it will shutdown (without freezing). The GPU runs hot, though all r9 are meant to run hot and this isn't the problem.

So here are the mayor problems:

1. After 65 degrees of the CPU, we are in the danger zone and any minute it will shutdown. Curiously you can just turn it back on right away as if nothing happen, but if you stress it again... well, it happens again.

2. The air from the stock FX-9590 water cooling comes out super hot (duh)... but I think it didn't when I gave it to him

Theories:

1. Bad CPU, but I do not know how to properly diagnose such a thing and send such documents to AMD to get a replacement.Please help if you do.

2. Need better cooling... kinda unlikely since this PCs has a lot more fans, but hey its the only FX-9590 I've put on a system and those 5Ghz turbo might be the culprit

3. Need a bigger PSU, right now it has an Ultra (tigerdirect brand) 750watt PSU. This does make sense because my client games on triple displays and I'm just assuming that the PSU does supply some power through those cables to the monitors. Another thing that supports this theory is the fact that I can just turn on the PC right after it shut down instead o having to wait for the CPU to cool down. How can I measure PSU wattage consumption when benchmarking or stressing?

Anyway guys, please give me your recommendations. I did sell this person a warranty for 3 years so.. whatever the fix its coming out of the company's pocket hehehe (my pocket lol).  I am very much inclining to order a bigger PSU.

PS: Can anyone tell me how to properly setup the eufi bios settings for my particular parts combination, meaning the ROG board, the fx-9590 and the r9 280x?, I just wanna see if I did it right cuz there maybe something I overlooked while setting it up. THANKS!

CPU's are one of these components that generally either works or does not work, very rarely are they flakey, unless under extreme heat, which doesn't seem likely in this case.

Use a volt meter straight from the wall, plug the system into the voltmeter and the meter into the wall socket, stress test it and if it's getting close to load before it crashes that may too be the culprit. It doesn't sound like a bad PSU as they will probably take a couple of components with them. I suspect that a bigger PSU would be the fix.

Really nice job with the build, looks very nice.

I seriously doubt that the PSU doesn't have enough power for the build. That isn't to say that it isn't a faulty PSU, but I doubt the max wattage is the problem.

I can't remember the thread, but Cloud and MisteryAngel were discussing some of the stress testing software and which were the best and most accurate. I'll look around for it and comment again with what I find.

The graphics card does not supply power to the monitors in any way. None. The other thing that happens is the graphics card outputs a digital video signal that the monitor interprets and displays as directed.

One thing you may look into is the thermal paste between the CPU and waterblock. Are you sure that you used a high quality paste and have good contact between the waterblock and CPU?

@dancin gif - could you link me to amazon or any store with the voltage meter you say? i've only used those ones with the probes and honestly i'm not that good with measuring such thing, i can learn though. Sounds like a tool i need to have for future builds. And THANKS on complimenting my job :D, can you imagine people pay me to do those hahaha, I love my job.

@grayson - I've posted this same thread on other forums and they've all kinda sided against the PSU, I don't want to change it... yet. I do thank you if you were to find that thread. Anyway, I know that the vga gives no power to the monitor, i guess i might've just thought up some crazy explanation as to why it works in my shop and not at his house (mostly).


Other thoughts, the thermal paste used is Artic Silver 5

So, I inverted the directions of the fans to go from inside the case, to the radiator and from the radiator to the outside of the case. Now it flows inward, from the outside of the case, through the radiator and into the case, then the 2 big 140mm fan from the top will exhaust it. After this, idle temps dropped from 49 degrees to 39!!! I'll be testing it out this weekend more. Thanks a bunch guys, will report back on Monday. You may keep posting more suggestions :D

http://www.newegg.com/Product/Product.aspx?Item=N82E16882715001 this will do the trick. You can also work out how much it will cost your customer to run per hour if you can be bothered to do the math.

Does it only crash at their house, not your workshop? (mostly, as you say)