Looking for help...bad PSU?

[danlineberger]

Hello,

I have been having problems with my computer over the last month. It will completely shut down and reboot while playing BF4. When playing on a map like Metro, I can usually get about 30 min to an hour before it shuts down. On a larger outdoor map, I can go about 10 minutes before it restarts. On City:Skylines, the computer will reboot every time right after the game loads. Heaven benchmark will reboot after a few minutes of running. Normal surfing and YouTube watching are no problem.

My system is not overclocked and I have not observed any temp spikes on the CPU or GPU. My 7970 was getting a little long in the tooth so I decided to get a MSI 290X Lightning thinking that it may have been the 7970. Booted up BF4 and experienced the same restarts. I have ordered a new PS, Corsair AX1200i thinking that my HX750 may be going bad. Below are the voltages as they read in BIOS.

Current system specs in signature.

Any assistance would be appreciated!

 

[viscountalpha]

You need an actual PSU diagnostic device to verify if its faulty. I would be willing to bet its something overheating.

 

[RedWagnum]

Your trouble could be PSU related - or it could be just a loose connection. Had that happen to me once. When playing just about any game whenever there was an explosion or a deep rumbling sound my system would just shut off (Klipsch PM5.1's really rumble!). Turned out to be the AC power cord was just a tiny bit loose-fitting in the PSU socket. Tried a different power cord and haven't had a problem since. Thermal expansion and contraction over time can make other connectors work loose too. Check them all - unplug and replug everything. Of course if you have a spare PSU swap that in and see if it makes a difference.

Man I hate to see people throw away good, hard earned money! That AX1200i is about twice what you need for the system in your signature. If you are not planning to overclock and/or add more GPUs you can easily get by with 600w - 750w. My system (see sig) is somewhat beefier than yours (except the GPU) and overclocked (both CPU and GPU) and it runs happily on a 720w PSU. Highest load I have ever seen it pull is around 420w. At one point I was running five 10k RPM USCSI hard drives in RAID 5, hence the 720w PSU. Otherwise I'd be running a ~600w PSU. Not knocking your decision of what to buy. It's just that you could save ~$200 with a PSU properly sized for your system.

 

[primetime]

he might have interests in crossfire 390xs one day....in that scenario it wouldn't be a wast at all
people use to constantly tell people there ps's are undersized.....almost everyone does the opposite now.......and i don't think he would have saved 200 bucks.....he might have paid less than that for what he got if it were a big sale or something...without knowing what he spent its hard to judge

lastly some supply are more efficient at only have usage...not saying they all are...but it possible

 

[Tsumi]

AX1200i is currently 310 - 31 = 279 + shipping at Newegg. New PSU implies retail bought. Niche high wattage PSUs rarely go on sale for a super good price. EVGA 850 GS was $80 AR. Yes, he could have easily saved $200 and still gotten an oversized PSU that would allow for Crossfire.

 

[primetime]

Hello,

I have been having problems with my computer over the last month. It will completely shut down and reboot while playing BF4. When playing on a map like Metro, I can usually get about 30 min to an hour before it shuts down. On a larger outdoor map, I can go about 10 minutes before it restarts. On City:Skylines, the computer will reboot every time right after the game loads. Heaven benchmark will reboot after a few minutes of running. Normal surfing and YouTube watching are no problem.

My system is not overclocked and I have not observed any temp spikes on the CPU or GPU. My 7970 was getting a little long in the tooth so I decided to get a MSI 290X Lightning thinking that it may have been the 7970. Booted up BF4 and experienced the same restarts. I have ordered a new PS, Corsair AX1200i thinking that my HX750 may be going bad. Below are the voltages as they read in BIOS.

Current system specs in signature.

Any assistance would be appreciated!

I don't think your picture came out since we don't have access to your google account..photo bucket works pretty good and has a fb login as to not need to create an account, but since you already ordered a new supply its a moot point i guess.....also most would like you to check rails with a meter since mb's can give incorrect readings

AX1200i is currently 310 - 31 = 279 + shipping at Newegg. New PSU implies retail bought. Niche high wattage PSUs rarely go on sale for a super good price. EVGA 850 GS was $80 AR. Yes, he could have easily saved $200 and still gotten an oversized PSU that would allow for Crossfire.

wow...had no idea those were so expensive

 

[RedWagnum]

he might have interests in crossfire 390xs one day....in that scenario it wouldn't be a wast at all
people use to constantly tell people there ps's are undersized.....almost everyone does the opposite now.......and i don't think he would have saved 200 bucks.....he might have paid less than that for what he got if it were a big sale or something...without knowing what he spent its hard to judge

Could have saved $200, maybe only $50. Point being he could have saved $$$ on a properly sized PSU. He certainly would not have spent as much on a quality 700w PSU as he would on a 1200w.

lastly some supply are more efficient at only have usage...not saying they all are...but it possible

I went into that in another post a while back. Any system (depending on components and configuration) can draw less than 100w during idle which where most systems spend most of their time. ALL PSUs that I have seen professionally reviewed are at their lowest efficiency at their lowest and highest loads. Loading a 1200w PSU to ~100w (only 8% load) is going to be less efficient than loading a 700w to the same ~100w load (about 14% load). Similarly, loading a 1200w to 400w (33% load) will be less efficient than loading a 700w with the same 400w (57% load, right in the sweet spot for most PSUs). Granted the difference probably would not add up to $1 over the course of a year. The point is he could save money on the front end and the back end.

Now of course, if the OP intends to overclock and/or add components in the (not to distant) future then the 1200w may be justified.

 

[danlineberger]

Installed the new power supply and everything is back running correctly. It appears that the Corsair HX750M is failing. It is still within the 7 year warranty so I am going to RMA it to have for a backup.

I know the 1200 is overkill for right now, but I am planning for the future with CF 390's and a system build. I just decided to go ahead and get the PS due to my old one failing.

 

[RedWagnum]

Installed the new power supply and everything is back running correctly. It appears that the Corsair HX750M is failing. It is still within the 7 year warranty so I am going to RMA it to have for a backup.

Glad you were able to fix the problem with the new PSU. Keeping the RMA'd 750 for a backup is a great plan. I've got an old (really old!) Ultra 500w that I keep around for testing and backup. It's bailed me out a couple times.

I know the 1200 is overkill for right now, but I am planning for the future with CF 390's and a system build. I just decided to go ahead and get the PS due to my old one failing.

The 1200w is still probably going to be overkill with the new system, but you got it so use it! Better to have a little too much than a little too little.

 

[Tsumi]

Installed the new power supply and everything is back running correctly. It appears that the Corsair HX750M is failing. It is still within the 7 year warranty so I am going to RMA it to have for a backup.

I know the 1200 is overkill for right now, but I am planning for the future with CF 390's and a system build. I just decided to go ahead and get the PS due to my old one failing.

750-850 would have been good for crossfire 390s. 1200 is for tri-fire with a 6 or 8 core CPU.