Sirtec will default to mediocre/inferior quality parts. Other OEMs like Seasonic start out with a higher quality base.
Sirtec, Seasonic, Delta, Lite-On, etc., get a manufacturing price point from the brands (or their own internal team if going under their label) and manufacturing will choose the parts accordingly. Some of the better brands will have a stricter supplier list for certain lines and the cost of that is passed from OEM to Brand to consumer.
I thought it was something else cause why would a high quality psu fail in a week right?
Bad part, bad manufacturing, or damaged along the shipping channel of multiple warehouses, trucks, ships, and train.
Teapo caps which age considerably worse than Japanese formula capacitors
Maybe even as recent as a decade ago and they have considerably narrowed the gap in the last several years. The few people I know in the industry even roll their eyes on the whole cap tier thing as being over blown. Personally, I would take the better known quality cap manufacturer especially once you start to break a certain price point but I would no longer dismiss teapo caps just because of the bran name either especially on a modern well designed platform.
Seasonic doesn't use exclusively Japanese capacitors either, not that it matters as long they're fit for the job. And For the reference, Corsair RM 2019 uses Su'scon and Elite capacitors, yet they offer full 10 years warranty on it because Jon Gerow knows his stuff.
What is a Japanese capacitor? Manufactured in Japan? HQ in Japan? raw material from Japan? Sales office in Japan? It's a marketing term so any of the previous is a japanes cap and has been used by brands in marketing.
Obviously those capacitors passed internal QC and CWT & Corsair are pleased with the QA otherwise there would be a significant cost impact across the board for all three (part, OEM, brand).
Jon knows his stuff but my "guess" is his team, CWT, and the part manufacturer are all proving proof it will pass their ten year warranty test.
Seasonic for some reason uses Hong Hua rifle-bearing fans on their entire high-end lineup
Because they have a contract and Hong Hua provides the perfect mix of price, quality, quantity, and most important consistency (getting the fans to them on time).
Where all that 'Seasonic is the best' started from ? I just can't wrap my head about it, they're just another OEM, using the same components as everyone else as long as their customer doesn't require lower quality components specifically to drive down costs. Which they're perfectly fine with doing themselves, remember Seasonic S12III ? Now wait for reviews of Seasonic B12 BC / G12 GC, because they're essentially 1st Player Armour PSUs with Seasonic label on it, i hope there will be reviews at least, but i pretty sure there wouldn't, because Seasonic doesn't want that 'Seasonic is the best' image they were constructing by sponsoring YT tech channels for a decade. There is also a Seasonic Core series with very few good enough reviews to date, and none from Aris, i wonder why, because they didn't send any review samples ?
Long story rather short; in the NA market a few brands like PC P&C saw a niche demand of better replacement PSU among the market of various levels of junk. PC P&C tapped seasonic and soon other brands like Antec and eventually Corsair tapped them as well along with other OEMs like Delta & CWT. Review sites like Hardware Secrets and Jonnyguru praised the seasonic builds against the junk competition and to Seasonic (and the brands) credit they saw the reviews for what they are are; free marketing. Soon they started to build units specifically to achieve test results that sent reviewers and readers into orgasmic PC builder bliss. Soon you have legions of readers seeing fan posts and tier lists of nothing but "Seasonic is the best anything else is heresy" thread after thread even if there are other OEMs out there can build units just as good if not better given the appropriate manufacturing price point. Why doesn't seasonic send out their lower end units or outsourced units for testing? Because they have brand equity among the PC builders community to protect.
It would be nice if there were more options like super flower, FSP, sparkle, etc. but here in North America, seasonic and seasonic re-brands seems to be most prevalent.
plenty of excellent CWT units out there under various brands, as well as super flower units under evga, FSP units under Be Quiet
there are two sparkles;
Sparkle Power Inc is FSP (name change)
Sparkle Computer sells graphic cards and at one time sold some PSU made by great wall
