Enough wattage?

[Spotty]

46 minutes ago, seon123 said:

Same Hong Hua fan, according to Cybenetics. 

https://www.cybenetics.com/index.php?option=database&manfID=28&volts=1

The AX850 is the same HA13525L12F-Z fan that all(?) the Seasonic Prime Ultra Titaniums use, but the AX1000 uses the HA13525M12F-Z. Both the same fan but if my HongHua naming scheme knowledge is up to scratch the M varient is spec'd for a higher RPM.

HA = HongHua (or something, idk, all their models start with HA from what I've seen)
135 = diameter of the fan (mm)
25 = width (mm)
L/M/H = fan RPM (Low, Medium, High I guess?)
12F-Z = Not sure... Specific model number?
I'd look it up but the HongHua website just loads a blank white page for me right now... I know I've looked it up in the past and I'm 90% certain it showed 3 models for the fan, with the L, M, H variants having different RPMs.

Also fan controller itself will play a part. Looking at Cybernetics it seems the 850 Seasonic the fan kicks in at early at around 400RPM, while the Corsair AX850 kicks in later at around 600RPM. None of what I just said really matters though since they're both really good for noise performance.

Honestly though, I'm really just being fastidious for no reason. Please ignore me

 

23 minutes ago, jonnyGURU said:

I know that Corsair keeps OPP low.

Isn't the OPP on the AX850/AX1000 set the same as the Seasonic Prime Ultra Titaniums (140%)? Maybe not all Corsairs then.
AFAIK the modern Great Wall/CWT Corsair units are around 120% though.... 

Edit: Nevermind. I was way off. Looking at Aris Tom's Hardware reviews where they test OPP, according to where it tripped OPP in their tests, it looks like the RMx is 125%. The TXm and VS 130%. HX, CX appear to be 120%.

Edited April 21, 2019 by Spotty

[Princess Luna]

3 hours ago, aezakmi said:

>dude is rich

>picks a bronze PSU, a low end ssd and a RMAken cooler

>topkek

don't forget the overpriced garbage motherboard for an i9 9900K

[aezakmi]

30 minutes ago, Princess Cadence said:

don't forget the overpriced garbage motherboard for an i9 9900K

Yeah well, looks, looks never change.

 

I don't know about new Intel mobos so I skipped that part

[Guest]

2 hours ago, Spotty said:

 

 

Isn't the OPP on the AX850/AX1000 set the same as the Seasonic Prime Ultra Titaniums (140%)? Maybe not all Corsairs then.
AFAIK the modern Great Wall/CWT Corsair units are around 120% though.... 

Edit: Nevermind. I was way off. Looking at Aris Tom's Hardware reviews where they test OPP, according to where it tripped OPP in their tests, it looks like the RMx is 125%. The TXm and VS 130%. HX, CX appear to be 120%.

Actual OPP can vary due to a number of conditions.  I've had AX OPP as low as 115% and as high as 150%.  RMx and TX-M uses a little better parts, so I've never seen over 140%.  

 

OPP can be "an exact science", but it would be a tremendous cost adder.

 

 

[Ankerson]

3 hours ago, jonnyGURU said:

 

I'll have to double check the PRD, but it could be more like 120%+, but different mains voltages result in different behavior. 

 

I know that Corsair keeps OPP low.  This came up recently with 2080s and Vega 64s tripping OPP during benchmarks.  Hard decision was made to keep it low for long term longevity.  But the flip side are customers (and some reviewers) that think an OPP set too high is a good thing. 

 

What I mean as opposed to cheap PSUs that are advertised at peak and can't even do 100% load. 

 

 

How would the OPP be tripping if the reviewers actually had enough PSU for the parts in the 1st place?

 

Maybe they didn't have enough PSU for the parts being tested?

[Guest]

8 minutes ago, Ankerson said:

 

 

How would the OPP be tripping if the reviewers actually had enough PSU for the parts in the 1st place?

 

Maybe they didn't have enough PSU for the parts being tested?

 

Actual PSU reviewers use PSU ATE's. Simulated loaders that can be programmed to put any load on any PSU and measure the results.  Some of these will intentionally program the ATE to loads higher than what the PSU's label rating states.

 

PSU "reviews" where they just slap the PSU inside a PC and check the voltages with whatever software should be ignored.

[Ankerson]

1 hour ago, jonnyGURU said:

 

Actual PSU reviewers use PSU ATE's. Simulated loaders that can be programmed to put any load on any PSU and measure the results.  Some of these will intentionally program the ATE to loads higher than what the PSU's label rating states.

 

PSU "reviews" where they just slap the PSU inside a PC and check the voltages with whatever software should be ignored.

 

 

Yes, I completely ignore those.

 

You mentioned benchmarks however so I asked.

[Stefan Payne]

5 hours ago, jonnyGURU said:

I'll have to double check the PRD, but it could be more like 120%+, but different mains voltages result in different behavior. 

Well, that was what the report for my (RIP) RM650i said, that it switched off before 120%.

But I rather have that than some rediculously high set point or 150% or some shit like that.

 

5 hours ago, jonnyGURU said:

I know that Corsair keeps OPP low.  This came up recently with 2080s and Vega 64s tripping OPP during benchmarks.  Hard decision was made to keep it low for long term longevity.  But the flip side are customers (and some reviewers) that think an OPP set too high is a good thing. 

Maybe you could add a delay line and an And Gate to mitigate that?

 

But yeah, Awardfabrik in Germany once made a review of some units and were happy that a 400 or 450W PSU was able to do 800W or something like that...

 

5 hours ago, jonnyGURU said:

What I mean as opposed to cheap PSUs that are advertised at peak and can't even do 100% load. 

Yeah, those things...

Luckily they are as good as dead, except for some shady gray imports on various sale sites...

 

Back in the day they were rather common. And I remember a THG Review back in the day where most PSU didn't do 100% load for very long...

[Guest]

5 minutes ago, Stefan Payne said:

Maybe you could add a delay line and an And Gate to mitigate that?

Cost.