PSU tier list 2.0

[jankerson]

Here is the original list:

http://www.bit-tech.net/news/seasonic-confirms-list-of-haswell-compatibl/1/

That list is from May 14, 2013 and isn't for the M12II Bronze EVO Edition. It's for the discontinued M12II Bronze Series.

Yeah, I know.

I don't have any EVO's so I really dunno. I wouldn't buy one anyway TODAY, I would get an X-Series, Focus or Prime.

Only reason I posted it was that MY M12II 650W is on the list of certified PSU's.

Anyhow I thought the current EVO's were Haswell Certified.

Haven't been able to find any current info on that. (2017)

Ah, was looking at the specs on the 620w and I see it's are still 12v+ Dual Rail..... Interesting. But then looked at the Seasonic site and the M12II 620 is single rail 12v+.. But not DC to DC..... But the 750 EVO is DC to DC along with the 850 EVO.

Seems odd the M12II EVO 620w wouldn't be and the 750 and 850 are.

 

[ko888]

Your M12II Bronze 650W model uses a DC-to-DC circuit design to derive its +3.3V and +5V rails so it is Intel Haswell Processor Ready.

 

[jankerson]

Your M12II Bronze 650W model uses a DC-to-DC circuit design to derive its +3.3V and +5V rails so it is Intel Haswell Processor Ready.

Yeah I know it does.... Bought that one April 2013.

It was someone else who said it didn't..... I am still laughing about that... LOL

It was a rare model that wasn't made for very long, I got lucky back when I got it, timing thing as I built a new machine back then and needed Haswell certified PSU. Was the reason why I bought it back then.

Thinking it was the 1st of the current New G-Models maybe before they were G-Models. At least that's what it looks like to me anyway. 😀

So the real question is why Seasonic discontinued the M12II 650W that is Haswell Certified and came out with the 620w EVO that isn't?

While the 750W and 850W EVO's are.

Why didn't they just continue the 650W, 750W and 850W M12II that were all Haswell certified into the EVO's instead of discontinuing the Certified 650W M12II and replacing that with the non certified 620W EVO?

That makes no since to me at all.

 

[turkey3_scratch]

So the real question is why Seasonic discontinued the M12II 650W that is Haswell Certified and came out with the 620w EVO that isn't?

Probably because Seasonic could reduce manufacturing costs and make a higher net profit.

Also, I forgot about those 650W and 750W M12iis. It's pretty staright-forward, though, that anything group regulated is not Haswell sleep state compatible. A lot of PSUs even lie and say they're Haswell compatible when they're not.

 

[ko888]

The M12II Bronze were only semi-modular. The current M12II Bronze EVO Edition is full modular.

 

[jankerson]

The M12II Bronze were only semi-modular. The current M12II Bronze EVO Edition is full modular.

I am aware of that.

Still doesn't make since why they would discontinue the 650W vers that was Certified and keep making the 620w vers that isn't.

 

[ko888]

The M12II Bronze were only semi-modular. The current M12II Bronze EVO Edition is full modular.

I am aware of that.

Still doesn't make since why they would discontinue the 650W vers that was Certified and keep making the 620w vers that isn't.

It's about manufacturing costs. The group regulated model is still cheaper to manufacture and 620W is close enough to 650W that it didn't make business sense to to keep the more expensive 650W model.

Once the cost of manufacturing the group regulated model becomes equal to or greater than the cost of manufacturing the DC-to-DC version then you'll see a change. Parts for the group regulated version will eventually become scarce, as PSU manufacturers move away from that design, driving up the parts costs.

 

[jankerson]

The M12II Bronze were only semi-modular. The current M12II Bronze EVO Edition is full modular.

I am aware of that.

Still doesn't make since why they would discontinue the 650W vers that was Certified and keep making the 620w vers that isn't.

It's about manufacturing costs. The group regulated model is still cheaper to manufacture and 620W is close enough to 650W that it didn't make business sense to to keep the more expensive 650W model.

Once the cost of manufacturing the group regulated model becomes equal to or greater than the cost of manufacturing the DC-to-DC version then you'll see a change. Parts for the group regulated version will eventually become scarce, as PSU manufacturers move away from that design, driving up the parts costs.

Makes since.

Was thinking because I will end up replacing my current M12II 620W that is 7 years old soon I suppose. I am thinking due to the age of the unit I am on borrowed time with it.

Might just replace it with a G-Series 550w, all I really need for that machine anyway and it will give me some headroom just incase the MB goes and I have to build a new machine. The whole machine is over 7 YO except for the Graphics card and SSD.

I7 870, 16 GB ram, RX 480 8GB, SSD and HD.

 

[Karadjgne]

I personally think it was an amd/nvidia thing. 650w is an oddball size really, it's kinda overkill for the majority of nvidia cards, yet 750/850w is good for sli/cf of just about anything. Competition is very stiff at the 550-650w size, but with the Haswell states compliance, that puts the group regulated S/M12-II 520/620w as good for the single card amd pc's. Which leaves the 650w out there hanging. Really, too small for sli/cf, too big for most single card pc's, and in direct competition with its own cousins of higher-end psus. With obviously dismal sales at the time I could see Seasonic not sticking with it for long.

 

[jankerson]

So the real question is why Seasonic discontinued the M12II 650W that is Haswell Certified and came out with the 620w EVO that isn't?

Probably because Seasonic could reduce manufacturing costs and make a higher net profit.

Also, I forgot about those 650W and 750W M12iis. It's pretty staright-forward, though, that anything group regulated is not Haswell sleep state compatible. A lot of PSUs even lie and say they're Haswell compatible when they're not.

They didn't make those for very long that's for sure.

And not available at all now.

 

[jankerson]

I personally think it was an amd/nvidia thing. 650w is an oddball size really, it's kinda overkill for the majority of nvidia cards, yet 750/850w is good for sli/cf of just about anything. Competition is very stiff at the 550-650w size, but with the Haswell states compliance, that puts the group regulated S/M12-II 520/620w as good for the single card amd pc's. Which leaves the 650w out there hanging. Really, too small for sli/cf, too big for most single card pc's, and in direct competition with its own cousins of higher-end psus. With obviously dismal sales at the time I could see Seasonic not sticking with it for long.

I have always liked the 650W PSU's.

I think it's a good size, gives enough headroom for a few bucks more than the 550W, but then I always run Intel and until lately AMD Graphics. Switched back to Nvidia with the GTX 1080 although I still have an RX 480 in another machine.

But yeah I do see the point.

 

[lee_ahmei]

fsp hyper k 500w 80+ plus review is good PSU???

 

[tito.m.c]

https://seasonic.com/product/focus-plus-850-platinum/
Could someone tell me in which tier it belongs? And which is better that one or RMx 850 of Corsair?

 

[turkey3_scratch]

It would be in the first.

Comparing it to the RMx, the RMx is a lot quieter, and performance between the two is about equal.

 

[Darkbreeze]

No it isn't. Just kidding. Greetings Turkey and everyone.

 

[turkey3_scratch]

Welcome back!

 

[Karadjgne]

Yeay!!!

 

[Darkbreeze]

Wus up guys? Glad to be back. Now I have to relearn everything I forgot and try to learn a bunch of new stuff that happened while I was gone. Woohoo. Heh.

 

[turkey3_scratch]

Wus up guys? Glad to be back. Now I have to relearn everything I forgot and try to learn a bunch of new stuff that happened while I was gone. Woohoo. Heh.

I was on PSU hiatus for a while, I think last winter. Can confirm I felt so lost being back in the tech world in general. New CPUs and GPUs had me so confused. I still don't really know the common Kabylake CPUs. I used to know all the Haswells off the top of my head and was well-informed on tech.

So like a hard worker who doesn't give up, whose thirst for knowledge is never quenched, I just gave up on learning about all these new CPUs and GPUs and instead just paid attention to power supplies (since that's mostly what I care about).

 

[Darkbreeze]

It's awfully hard to know everything about everything. Much easier to know a fair amount about a lot of things. Easier still to be a wealth of information if you are focused on only one primary subject.

 

[superninja12]

It's awfully hard to know everything about everything. Much easier to know a fair amount about a lot of things. Easier still to be a wealth of information if you are focused on only one primary subject.

Wow return of the king o0

 

[Darkbreeze]

Your words, not mine.

 

[turkey3_scratch]

Your words, not mine.

I heard you were in the woods discovering your inner self or something?

(kidding, I know it was work)

 

[Darkbreeze]

Exactly. Somebody has to replant our forests when these ginormous fires wipe everything out. Cutting burned and deadfall trees. Clearing them out. Replanting. Freezing your ass off. Fun stuff.

 

[turkey3_scratch]

Exactly. Somebody has to replant our forests when these ginormous fires wipe everything out. Cutting burned and deadfall trees. Clearing them out. Replanting. Freezing your ass off. Fun stuff.

I honestly never considered a work force doing that, always thought nature just did the replanting itself.