[SOLVED] Corsair CX750M can't hold i7 4790K & 780 Ti playing The Witcher 3

[Saru]

Hi, folks.

First time here. I'm so glad to participate in this forum, I have so many friends who speak well of TechPowerUp, so I think I will solve my problem here.

Well, I have this rig:

CPU - i7 4790k
MOBO - GA-Z97X-SLI
GPU - GTX 780 Ti AMP ZOTAC
PSU - Corsair CX750M
RAM - 16 GB DDR3 1866 Mhz

And, recently my PC was getting imminent shutdown when I was playing The Witcher 3. So I noticed that there was a bit noise sound coming from PSU when I opened TW3, like a continuous cricket sound.

The temps are fine, the GPU is getting 70ºC and the CPU getting 50ºC playing The Witcher 3.

I was thinking that was the Turbo Boost that was putting the clock of my CPU at 4,39 Ghz, and putting my CX750M at your knees. I've turned off but it not resolved my problem.

I dont know how to call this, but its a forced reset that I get, I mean the PC shuts down and 1 or 2 seconds later it turns on automatically.

Problems like this is related to the PSU. So that is my question:

Is anything that I can do to resolve this problem without buying a new PSU or I have to buy the Corsair AX760 or the Seasonic SS-760XP? I'm gonna post a poll for this

Thank you, guys, and sorry for my bad english.

 

[Tatty_Two]

Is the unit old? I know the CX is a more budget orientated Corsair model but it has 62 amps I believe on a single rail and is Bronze rated which should be ample.

 

[HWTactics]

Hi there Saru.

CX750M can certainly handle your hardware. If it's less than 3 years old, RMA is always an option.

GTX 780 Ti TDP: 250W
i7 4790K TDP: 88W
Everything else: ~100W
~450W max load

Some noise coming from the video card, motherboard VRM and power supply is normal. Does the crash happen while you play any other games? How about running stress tests?

I would try running Prime95 and FurMark at the same time to test CPU and GPU. Let it run for an hour or so and see if it crashes or freezes up.

 

[Saru]

Is the unit old? I know the CX is a more budget orientated Corsair model but it has 62 amps I believe on a single rail and is Bronze rated which should be ample.

No, I bought the CX750M in September, 2015.

However, I live on Brazil, and I have only 9 months of warranty (contract) from the store and 3 months of warranty legal.

Hi there Saru.

CX750M can certainly handle your hardware. If it's less than 3 years old, RMA is always an option.

GTX 780 Ti TDP: 250W
i7 4790K TDP: 88W
Everything else: ~100W
~450W max load

Some noise coming from the video card, motherboard VRM and power supply is normal. Does the crash happen while you play any other games? How about running stress tests?

I would try running Prime95 and FurMark at the same time to test CPU and GPU. Let it run for an hour or so and see if it crashes or freezes up.

Hi, HWTactics

Well, the sound come from the PSU. I'll try running this stress tests.

But, like I said, it's not a crash or freezing that happens playing The Witcher 3

It's like if a "ghost" puts his finger on the I/O, turning off the PC, and then he turns on. No stutterings, no BSOD, no signs of software problem (unfortunately).

 

[Brusfantomet]

750 W and 62 amp should be good. for the RMA stuff, have you tried contacting corsair directly? They have a reputation of being helpful.

In my personal experience, their PSUs are NOT that good, but that is anecdotal experience. either way, i voted for the Sesonic module (even tho the AX series is built bu seasonic if memory serves)

 

[Saru]

Oh, I forgot.

About playing other games, yes, like GTA V or Vindictus (raid)...

 

[jboydgolfer]

Seasonic is Corsairs OEM, So your only getting a different warranty, and Bells and whistles when deciding between the two, unless they stop using Seasonic as they're OEM.

I find it strange that a working 750Corsair is having ANY issues with the build in the OP...It must need an RMA, because it certainly has what it takes to run that rig.

As for issues with the RMA, its the Manufacturer NOT the retailer who needs to be contacted... as long as You can provide proof of purchase, they will just begin the RMA process.

 

[Saru]

750 W and 62 amp should be good. for the RMA stuff, have you tried contacting corsair directly? They have a reputation of being helpful.

In my personal experience, their PSUs are NOT that good, but that is anecdotal experience. either way, i voted for the Sesonic module (even tho the AX series is built bu seasonic if memory serves)

Hum, I'll try to contact them directly again.

Last time, they told me that they could'nt do anything, and said me to contact the store which I bought the CX750M.

hahaha

Well, I try running Prime95 and FurMark at the same time... and the PC survived only 10 seconds.

So, guys, do you think now its the PSU?

 

[HWTactics]

Well, I try running Prime95 and FurMark at the same time... and the PC survived only 10 seconds.

Do you have your video card or processor overclocked? That's the first thing I would investigate. Synthetic load is a lot more punishing on your hardware, so you may not have noticed the clocks were too high until now.

 

[Brusfantomet]

Hum, I'll try to contact them directly again.

Last time, they told me that they could'nt do anything, and said me to contact the store which I bought the CX750M.

It could be that they are trying to defer you to the Brazilian consumer laws (acording to your post they are not that good) it could be a gamble to say that the retailer you used have gone bust (that works in norway at least, then again, you are not resident in glorious socialist union of Scandinavia)

 

[Saru]

Do you have your video card or processor overclocked? That's the first thing I would investigate. Synthetic load is a lot more punishing on your hardware, so you may not have noticed the clocks were too high until now.

My CPU is at 4.0 Ghz. Well, its now, because I discovered that the Turbo Boost was on, putting at 4,39 Ghz. Now its turned off, and running at 4.0 Ghz

The GPU is the "GTX 780 Ti OC ZT-70506-10P" with 941 Mhz core clock, and boost clock with 1006 Mhz

 

[95Viper]

Don't know a lot about that particular PSU; however, if the fan in the PSU is temperature controlled... the chirping cricket sound could be from fan bearings drying out and the fan not spinning correctly for cooling the supply enough at high loads.

I would call the store and get it replaced; if you warranty is good from them still... or call corsair and tell them... somebody got your money and you deserve a working product.

 

[Saru]

Don't know a lot about that particular PSU; however, if the fan in the PSU is temperature controlled... the chirping cricket sound could be from fan bearings drying out and the fan not spinning correctly for cooling the supply enough at high loads.

I would call the store and get it replaced; if you warranty is good from them still... or call corsair and tell them... somebody got your money and you deserve a working product.

I absolutely agree with you.

I will check in relation to periods of guarantee that I still have from the store I bought

However, the boxes, manuals and extra cables that PSU (and the other hardwares I have) I lost in a flood that has often in the city where I live (Blumenau / SC). This will not help me a lot in making the RMA

 

[HWTactics]

the boxes, manuals and extra cables that PSU (and the other hardwares I have) I lost in a flood

Shouldn't be a problem. Manufacturers typically only want the failing part. Also, the CX750M has got some pretty abysmal reviews. I wouldn't be surprised at all if yours is defective.

"there is absolutely no reason ANY user should buy a Corsair CX750 as you can get better performing, better built, and better supported products for about the same price or even for much less money"

After doing the other troubleshooting and not running any overclocked hardware, I think we've narrowed it down pretty well.

 

[GreiverBlade]

Shouldn't be a problem. Manufacturers typically only want the failing part. Also, the CX750M has got some pretty abysmal reviews. I wouldn't be surprised at all if yours is defective.

"there is absolutely no reason ANY user should buy a Corsair CX750 as you can get better performing, better built, and better supported products for about the same price or even for much less money"

After doing the other troubleshooting and not running any overclocked hardware, I think we've narrowed it down pretty well.

exactly what i did read ... before going for a Seasonic M12II 750w bronze Evo and i run a 4690K @4.5 and a 980 @1398/1978 and also i had a 700w from InWin (gold) that did hold quite good a pair of GTX580 Matrix Platinum @900/1050 and a Xeon E3-1275v2 (and did cost around a RM serie 550)

corsair for me it's just : a freaking no go when it come to PSU either they do budget and so-so quality or they do high end (sometime Seasonic oem) but with a crazy premium over the same unit from the OEM without Corsair branding.

 

[newtekie1]

Shouldn't be a problem. Manufacturers typically only want the failing part. Also, the CX750M has got some pretty abysmal reviews. I wouldn't be surprised at all if yours is defective.

"there is absolutely no reason ANY user should buy a Corsair CX750 as you can get better performing, better built, and better supported products for about the same price or even for much less money"

After doing the other troubleshooting and not running any overclocked hardware, I think we've narrowed it down pretty well.

exactly what i did read ... before going for a Seasonic M12II 750w bronze Evo and i run a 4690K @4.5 and a 980 @1398/1978 and also i had a 700w from InWin (gold) that did hold quite good a pair of GTX580 Matrix Platinum @900/1050 and a Xeon E3-1275v2 (and did cost around a RM serie 550)

corsair for me it's just : a freaking no go when it come to PSU either they do budget and so-so quality or they do high end (sometime Seasonic oem) but with a crazy premium over the same unit from the OEM without Corsair branding.

Most of the reviews of the Corsair CX line, specifically the CX750M, don't say it is a terrible PSU, what they really say is it isn't the best PSU you an get for the price point. Even the HardOCP review says:

"the build quality of the Corsair CX750 is generally good"

These units aren't perfect, and some cuts were obviously made to save on cost. But they are still solid units. The gripe the reviewers have is they are overpriced. Well, price plays no factor here, because he already bought the PSU.

And my favorite view on this comes from JonnyGuru's Oklahomawolf, one of the best PSU reviewers ever:

Here's my two cents... the original RM850 still gets way too much hate from these people. One little design flaw so minor that it affected exactly zero consumers, and suddenly Corsair is the devil to some and now the RM series is crap not worth buying. Granted, some of these people are still reasonable, not holding the company as a whole to the torch just because the RM or the CX series turned out to be below their personal standards of awesomeness. But for every one of the reasonable people, there's another one coming out of the woodwork with nonsense like, "oh, I'll never buy a Corsair again because the CX750M shuts down above 30 degrees and only crap units do that."

Folks, if you're one of these people, here's my personal opinion on the entire Corsair lineup, as I've seen things: some units they make are world class. Others just get the job done. Exactly zero are pure crap. They're all decent. You disagree? Well, perhaps you should re-acquaint yourselves with what I consider to be pure crap. Take a look at this LPSW 350W unit. If that doesn't do it for you, check out this Bestec. Or this Hercules, still easily the worst unit I've ever personally tested. Ace Power anyone? What about the Coolmax ZX-500? You see what I mean? Every Corsair unit I've seen so far can either handle everything I throw at it or gracefully shuts down and bows out when it can't. Not one has died. Not. One. Ever. Crap units don't do that. Crap units fry your computer and/or burn your house down while you're sleeping in the next room.

Now, as for the OP's issue. It could be the PSU, but I'm not convinced it is. Just because everything is stock doesn't mean it is stable. Also, Corsair power supply, as Oklahomawolf points out, shut down when there is a problem. As in shut down complete, they are all designed this way, that is their protection circuitry. Even in his test of the CX750M when he overheated it, the PSU just shut down. I've never seen one shut down, then power itself back up a few seconds later. And even in his overheat testing, he was still able to pull 600w+ out of the unit @40°C. The OP's rig shouldn't be getting anywhere close to that. But maybe the PSU is overheating, I'd be interested to know if the problem goes away if he opens his side panel on his case to give the PSU more airflow. I'd also like to know what case he is using. If it is a bottom mount PSU, then overheating shouldn't be a problem since the PSU is drawing in cool outside air constantly. If it is a top mount PSU, then it is drawing in the hottest air possible, and maybe it is overheating in that case.

 

[MrGenius]

They've also got the flattest efficiency curve in their class. That's why I bought mine. Sure glad the sales associate at Fry's pointed that out to me before I bought something of lesser quality.

 

[GreiverBlade]

Most of the reviews of the Corsair CX line, specifically the CX750M, don't say it is a terrible PSU, what they really say is it isn't the best PSU you an get for the price point. Even the HardOCP review says:

"the build quality of the Corsair CX750 is generally good"

These units aren't perfect, and some cuts were obviously made to save on cost. But they are still solid units. The gripe the reviewers have is they are overpriced. Well, price plays no factor here, because he already bought the PSU.

And my favorite view on this comes from JonnyGuru's Oklahomawolf, one of the best PSU reviewers ever:

i didn't say they where bad but i did say they were "so-so" but on a general line: they always are overpriced for what they are ... when you could get a 700 80+ gold you get a RM550, even if my actual seasonic is a 750 80+ bronze, tho more closer to silver than bronze it's still cheaper than a RM750 and undoubtedly far more worth her price.

so it's still a freaking no go for me tho i keep corsair in good esteem when it come to case (2nd hand most of the time ... otherwise as usual, a bit too high on the price ... tho the AIR540 pricing is not so bad ... i absolutely love it) and RAM cooler (even if it's a useless cosmetic gimmick most of the time, even with my Trident X @2448 )

 

[damric]

I'll say it. CX is crap. OKW is a poser and John Geuro works for Corsair. They can take their equally crappy correspondance degrees and have a big circle jerk powered by CX for all I care.

 

[newtekie1]

i didn't say they where bad but i did say they were "so-so" but on a general line: they always are overpriced for what they are ... when you could get a 700 80+ gold you get a RM550, even if my actual seasonic is a 750 80+ bronze, tho more closer to silver than bronze it's still cheaper than a RM750 and undoubtedly far more worth her price.

so it's still a freaking no go for me tho i keep corsair in good esteem when it come to case (2nd hand most of the time ... otherwise as usual, a bit too high on the price ... tho the AIR540 pricing is not so bad ... i absolutely love it) and RAM cooler (even if it's a useless cosmetic gimmick most of the time, even with my Trident X @2448 )

And this isn't a thread about the value of Corsair units. The units are solid, that is all that matters here.

 

[Norton]

That psu is good for tripping its overtemp circuit if it gets too hot. It did this while testing at jonnyGURU

See this page:

http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story4&reid=416

If the psu is in a tight case or a hot room it's possible to trip the overtemp protection before hitting 650w. I had a CX430 in a rig that did this in the summer anytime I put a little too much of an overclock on the cpu (PII 965BE).

EDIT- looks like @newtekie1 already mentioned this review in his post....

 

[Saru]

So guys... I think I will buy a new PSU.

My dad needs a PSU only to hold a GT210 and a i3 4330. He should be fine with my CX750M (With pseudo 750W ).

So, what PSU should I buy? The Seasonic on the poll? (Votes: 10 - Seasonic / 2 - Corsair). Or other one you guys recommend? other brand?

 

[newtekie1]

Get which ever is cheaper, I believe both use the same platform anyway.

 

[MrGenius]

I love all the "I've had no experience as an owner of the product in question. But I read such and such written by so and so ON THE INTERNET. So by God it must be true."

LAUGH MY EFFING ASS OFF!!!

Nope. Not once. Not ever. Nor will there ever be a time when I look to a product review on the internet to guide me in my choice of purchasing ANY product of ANY type. Grow a brain and try thinking for yourself sometime.

 

[zo0lykas]

my opinion, and experience telling me problem is in BIOS, bad setup for cpu temp and he's just shut down it, try turn it off or increase temp

Hi, folks.

First time here. I'm so glad to participate in this forum, I have so many friends who speak well of TechPowerUp, so I think I will solve my problem here.

Well, I have this rig:

CPU - i7 4790k
MOBO - GA-Z97X-SLI
GPU - GTX 780 Ti AMP ZOTAC
PSU - Corsair CX750M
RAM - 16 GB DDR3 1866 Mhz

And, recently my PC was getting imminent shutdown when I was playing The Witcher 3. So I noticed that there was a bit noise sound coming from PSU when I opened TW3, like a continuous cricket sound.

The temps are fine, the GPU is getting 70ºC and the CPU getting 50ºC playing The Witcher 3.

I was thinking that was the Turbo Boost that was putting the clock of my CPU at 4,39 Ghz, and putting my CX750M at your knees. I've turned off but it not resolved my problem.

I dont know how to call this, but its a forced reset that I get, I mean the PC shuts down and 1 or 2 seconds later it turns on automatically.

Problems like this is related to the PSU. So that is my question:

Is anything that I can do to resolve this problem without buying a new PSU or I have to buy the Corsair AX760 or the Seasonic SS-760XP? I'm gonna post a poll for this

Thank you, guys, and sorry for my bad english.