should I use the old Corsair HX650 or CX750M

arkincanada

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Oct 23, 2017
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my old PSU was dead not too long ago. I have two PSU from my deal hunting. got both for 50 CAD, lack of cord, Which I have extra.
system is 6700/GTX1080 + 200 MHz core, +400 Memory/16G 3200MHZ,3 SSD and 2T HDD/ H115i and a few fans

I am rocking that CX750M now since the wattage is higher and the unit is newer(not looks newer, two unit looks perfect from outside. I say newer because I know the series only started 2 years ago.). but I heard bad thing about CX series, should I swap to HX650 or should I go spend 200 get a AX860i (which I don't really want to do).
 
Solution
Hey,
It would be best to keep your points limited to the initial QUESTION or it gets confusing.

So if you decide to build a new PC, perhaps open a post dedicated to that.

*Back to the PSU... I've built many systems and maintained many... my advice is basically don't buy or swap out a PSU that seems to be working fine. Exceptions include when the anti-voltage/anti-current protection sucks.

(though you should also add a surge protector regardless)

Little story for bedtime kids:
1. Had good PSU
2. It had a few fan issues, but they went away.. got concerned
3. bought much BETTER PSU
4. installed PSU and it failed...
5. put back in old PSU while awaiting RMA
6. replaced old with new again and all has been good

Moral of this story is...


nope, its green labeled, so the reason of not using HX is because of it's age, it's sitting in my HTPC now.
 

I'm thinking to upgrade it to a R7 1700 in this coming Christmas season so I want to do all the shopping together, do you think I could hang in any of these for a month or two? like, if it fails, will it blow up my other stuff, with the high GPU price, I don't really want it blow up my 1080, lol.

P.S. I do want to get a solid unit, targeting RM/AXi series or the supernova series, I change hardware all the time, so I was hoping to at least keep using the PSU,
PS again, I blew up a newton PSU because I did something wrong DIY the modular cable.😱
 


I'm occasionally running CFD simulation, of course not the extra detailed one at home. but compare to the e5 2630 in the lab, it's painfully slow, was hoping extra core could help.
lab don't have internet access, so I cant remote control that one.
 
Hey,
It would be best to keep your points limited to the initial QUESTION or it gets confusing.

So if you decide to build a new PC, perhaps open a post dedicated to that.

*Back to the PSU... I've built many systems and maintained many... my advice is basically don't buy or swap out a PSU that seems to be working fine. Exceptions include when the anti-voltage/anti-current protection sucks.

(though you should also add a surge protector regardless)

Little story for bedtime kids:
1. Had good PSU
2. It had a few fan issues, but they went away.. got concerned
3. bought much BETTER PSU
4. installed PSU and it failed...
5. put back in old PSU while awaiting RMA
6. replaced old with new again and all has been good

Moral of this story is that why did I buy a new PSU?

Even when the new one died my computer wasn't affected. So why not wait until you have noticeable issues then do something about it?

Heck, you may NEVER have issues the entire time you use the computer. A "crappy" PSU is statistically more likely to fail, but if it's just statistics and as I've shown even a NEW PSU can fail.

*I don't think I have EVER seen a PSU that wasn't complete and utter garbage fail in such a way that it killed a computer part.
 
Solution
New computer?

I sometimes recommend Ryzen depending on the budget and purpose, but for others I recommend Intel's COFFEE LAKE. In some situations an overclocked (i.e. 5GHz) i7-8700K is 50% faster than a 4GHz (also OC'd) R7-1700/1800X.

For gaming Ryzen isn't a step up from the i7-6700 anyway, except maybe very niche games with abnormal CPU usage such as AotS or specific multi-tasking or some editing tasks.

If you have the budget (and need) to with the i7-8700K.

Conversely if you don't have the budget then stick with the i7-6700.

*At the very least, scour the benchmarks to determine EXACTLY WHAT BENEFIT both scenarios offer you.

Heck, maybe put the money towards a good GSYNC monitor if you don't have one, or just put it aside for something else.
 
CX750M (version 2)
http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story6&reid=486

While the VALUE isn't great (comparatively to other PSU's at the time of testing), it's not that bad of a PSU overall. Modern PSU's that are "average" are still quite good compared to twenty years ago.

The main issue would be over-current protection, and I highly doubt it would be problematic to the point other components would get damaged if it failed.

I would not replace it.
 


I see.