1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Kolink KL-400 400W '80 Plus Bronze' Internals

Discussion in 'Power Supplies' started by AtaRo, Nov 11, 2015.

  1. AtaRo

    Wise Guy

    Joined: Aug 4, 2008

    Posts: 1,841

    [​IMG]




    [​IMG]


    Imported by Caseking
    [​IMG]




    [​IMG]




    [​IMG]



    The PSU does not include a power cable, the contents of the white box beside the psu
    are some screws and 2 velcro cable management wraps.
    [​IMG]



    80 Plus Bronze label - 80+ link here
    [​IMG]



    Fan by Shenzhen Xin Wang
    [​IMG]



    Some manual soldering in there
    [​IMG]




    [​IMG]



    EMI/Transient Filter, No MOV
    1 - Primary bridge rectifier
    2 - PFC/PWM Combo
    3 - Primary cap by Capxon
    4 - 5VSB Controller IC
    [​IMG]



    EMI/Transient Filter starts here in the receptacle
    [​IMG]



    All chinese electrolytic capacitor, at this price point I doubt we will see a japanese caps here
    Brown cap - by CD288
    Green caps - by Chingx
    Blue caps - by BH
    [​IMG]



    1 - 12V Rectifier - This psu has 24 Amps on the 12V rail but this rectifier is rated for 30 Amps and there's 2 of
    them in parallel for a total of 60 Amps, this parts is overspec for this rail.
    2,3 - 5V and 3.3V Rectifier - This Rectifier is rated for 20A and the 5V, 3.3V rail is only rated at 15A so this part
    is enough to handle the 15A for this rail.
    [​IMG]


    The output of the PFC diode is filtered by the Capxon 150uf 400v 85°C capacitor
    1 - PFC diode
    2 - PFC transistor
    [​IMG]



    Protection IC
    [​IMG]

    Cable length

    24pin cable length about 15.5in
    4+4 cpu cable length about 18in
    8pin pcie cable length about about 16in

    All the cables are AWG 18.

    According to ChugNorris the oem for this is Huntkey but my guess is Enhance Electronics.

    Transient filter - Yes
    MOV - No
    PFC/PWM Combo - CM6805
    Protection IC - WT7502
    Bridge rectifier - T6KB60 (6 Amps)
    5VSB Controller IC - XY6112
    PFC Transistor - SGF180N60W3
    Primary switching transistors - 2 x CM15N50 - from what I could dig it is rated at 15 Amps
    12V output rectifier - 2 x MBR3040PT Rated at 30 Amps - 60 Amps
    5V output rectifier - MOSPEC S20C45 - 20 Amps
    3.3V output rectifier - MOSPEC S20C45 - 20 Amps
    Primary capacitor - Capxon 150uf 400v 85°C
    Secondary capacitors - BH, CD288, ChengX ( all 105°C )
     
    Last edited: Nov 11, 2015
  2. ChugNorris

    OcUK Staff

    Joined: Nov 26, 2014

    Posts: 1,832

    Location: Stoke

  3. AtaRo

    Wise Guy

    Joined: Aug 4, 2008

    Posts: 1,841

  4. Monkeynut

    Soldato

    Joined: Nov 7, 2007

    Posts: 6,219

    Location: Cheshire

    Lol it's like they just grabbed a bag of the worst capacitors in the world. Well, equal to Fuhjjyu.
     
  5. cactusweasel

    Gangster

    Joined: Jun 25, 2009

    Posts: 438

    Location: Inverness

    So what is the opinion of this PSU? I am looking for a cheap unit for a media server. I don't know what the components in the pics mean? is it good/bad etc?
     
  6. pastymuncher

    Man of Honour

    Joined: Jul 12, 2005

    Posts: 17,040

    Location: Aberlour, NE Scotland

    Leave well alone and instead look for something half decent. Cheap components are very bad and the price and very short warranty speaks volumes about the lack of quality in these units. After seeing the internals of these I dread to think of what rubbish they have thrown inside the core series which are even lower than these KL's.
     
  7. ChugNorris

    OcUK Staff

    Joined: Nov 26, 2014

    Posts: 1,832

    Location: Stoke

    I wouldn't sell them if I didn't have confidence in the product. Our RMA rates are extremely low, and we have a lot of satisfied repeat customers. For those who want a cheap yet reliable option, this is it. It will be perfectly fine for a media server.
     
  8. EsaT

    Mobster

    Joined: Jun 6, 2008

    Posts: 4,638

    Location: Finland

    With bridge rectifier lacking heatsink...
    For comparison lower power Seasonic G-360 has heatsink for its 10A bridge rectifier.

    In fact without heatsink it's rated only for 2.8A at 25C ambient!
    That means 322W input power at US mains voltage without any temperature derating, so 100-240V input rating is big fat lie.
    With certainly higher PSU temperature it's questionable if it can handle 400W load for longer time even with higher European mains voltage.
    http://www.sipower.us/docs/datasheets/bridgerectifiers/t6kb(20~80).pdf


    And while PFC-circuitry can have some effect to needed primary capacitance it doesn't change the fact that during moments of low mains voltage feeding actual transformer with stable power is up to primary cap.
    For comparison that 360W Seasonic has 270uF cap.

    http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story4&reid=313
    http://www.hardwaresecrets.com/seasonic-g-360-power-supply-review/4/

    Guess having good size primary cap would have actually needed adding "thermistor"/NTC-resistor to control power on surge current...


    Blue caps have same CD288 marking.
    Jianghai uses that marking style.
    Also some ChengX seems to use same markings.
    So Chinese lottery grab bag stuff.
     
  9. pastymuncher

    Man of Honour

    Joined: Jul 12, 2005

    Posts: 17,040

    Location: Aberlour, NE Scotland

    Sorry Chug but with Caseking being behind them you are hardly going to come out and say they are rubbish. If OCUK/Caseking have so much faith in these units then they could sort this out once and for all by sending a couple off to be properly reviewed. Of course this will never happen because they will score so badly.
     
    Last edited: Mar 23, 2018
  10. ChugNorris

    OcUK Staff

    Joined: Nov 26, 2014

    Posts: 1,832

    Location: Stoke

    https://forums.overclockers.co.uk/threads/ocuk-staff-whats-the-consensus-on-kolink-psus.18814453/

    Hopefully this post will clarify some things for you. I've seen the crap internals that other cheap brands in the market have (CIT, Ace, Alpine, Winpower, Artic, Aerocool Integrator, Corsair VS to name but a few) and I'm quite confident that the Kolink Core and Bronze series are superior in every way. Would I use one in my personal gaming system? Probably not, but then I have the budget for a Seasonic or a Super Flower, and would be aiming for Gold+ efficiency. I'd have zero issues with using them for mid level gaming systems, and I'd happily use a Continuum in my gaming rig.
     
  11. pastymuncher

    Man of Honour

    Joined: Jul 12, 2005

    Posts: 17,040

    Location: Aberlour, NE Scotland

    Not really. Until a Core series and KL series have been properly reviewed (including internals) by the likes of Techpowerup and Jonnyguru nothing is going to change my opinion of them. I wouldn't use one which means that I would never recommend one to anybody either. I will only recommend something that I am 100% happy to use myself and I would hope than the majority of people on here feel the same way.
     
  12. ChugNorris

    OcUK Staff

    Joined: Nov 26, 2014

    Posts: 1,832

    Location: Stoke

    Clearly you aren't the target market. I believe Philip has clearly and concisely explained the situation in the other thread, including addressing most, if not all points raised against the Kolink brand.
     
  13. 4K8KW10

    Mobster

    Joined: Sep 2, 2017

    Posts: 4,238

    I have a no-name 350W power supply working from year 2006 on an Athlon 64 3700+. This is more than 11 years already, towards 12 years!
    And it's perfectly fine. These Kolink power supplies are luxury compared to it.
     
  14. pastymuncher

    Man of Honour

    Joined: Jul 12, 2005

    Posts: 17,040

    Location: Aberlour, NE Scotland

    ^Nothing you say fills me with any confidence and as far as your psu recommendations go, thank god everybody ignores them.
     
  15. 4K8KW10

    Mobster

    Joined: Sep 2, 2017

    Posts: 4,238

    It is a fact that the most expensive PSU can go boom, and the cheapest PSU can last for ages.
    This is it - call it luck or whatever, or just wrong and correct batches...
     
  16. pastymuncher

    Man of Honour

    Joined: Jul 12, 2005

    Posts: 17,040

    Location: Aberlour, NE Scotland

    Statements like that are why nobody takes you seriously on here. A quality psu has a massively lower chance of failing than a £15 psu and is also highly unlikely to take anything with it unlike the cheap one which could take several things with it. I have tried explaining things like this to you several times and even provided links to reviews of cheapo psu's and why not to buy them and you still stick to your misguided point of view so you are never going to see reason. Just remember the next time you suggest a rubbish psu to go with very expensive components that it's not your money that you are spending and you are not the one that has to sort through a potential nightmare when things go wrong. A word of advice, do not put blind faith in marketing bs. A lot of it (especially on cheaper psu's) is just pure fantasy.
     
  17. 4K8KW10

    Mobster

    Joined: Sep 2, 2017

    Posts: 4,238

    I put my money that Kolink will become one of the best and most recognised PSU brands out there. Just give it more time.

    And please, do not make it personal towards me - your colleague @ChugNorris tries to convince you absolutely the same thing :D
     
  18. Kurgen

    Wise Guy

    Joined: Apr 10, 2015

    Posts: 1,626

    Location: Hungerford, UK, Earth

    just out of interest, if decided to use a kolink PSU, it went pop and took your motherboard etc with it, is that sort of thing covered in the Warranty (and if the warranty expires). I think i would be happy to use one in a low end PC that was used for web browsing or streaming etc . but i woudlnt be so keen in one going in my main gaming PC and stick to branded with longer warranty
     
  19. Kolink PSU PM - Phil

    KOLINK REP

    Joined: Mar 23, 2018

    Posts: 18

    Kolink manufacturer warranty covers damages to other components, of course. However proof for both the damage and cause of the damage are required. All claims will be verified in HQ. Also warranty is completely void if the problem was caused by faulty adapters, faulty components, modifications of the PSU, foreign objects inside of the PSU, water, overloading cables, starting car engines etc.. This is probably the same for most other PSU brands. Our PSU are designed "safe to use", but there is no way to prepare PSU for whatever abuse some very few users come up with. We don't feel it's our fault if very few users pull crazy **** which gets PSU and maybe other parts killed. Covering damages from such events would in the end increase sales prices for all PSU, so we feel it would also be unfair for the >99% of reasonable people out there to pay extra so a few have extra insurance.

    I'm aware we really should get our homepage online and include official warranty terms. I don't see this happening before Computex though.
     
  20. orbitalwalsh

    Capodecina

    Joined: Dec 1, 2015

    Posts: 12,216

    @Kolink PSU PM - Phil @ChugNorris

    would agree @pastymuncher in its really worth sending it off for review against models chug mentions it beats as well as ones it wants to compete with at a lower price point .

    everone knows its not going to match the Continuum brand or Focus range but IF IT could MATCH or BEAT EVGA's BT450

    https://www.overclockers.co.uk/evga-450bt-450w-80-plus-bronze-power-supply-ca-03l-ea.html

    Then we'd all happy recommend it here for budget or office builds hands down , specially the SFX model! SFX PSU prices are insane !
    thats £8 saving for ATX and £20 saving for SFX (450w)!!!

    I know we don't effect a huge majority of the target audience buying the unit or around that budget but member's here can sway a good amount of new members away from that model or it appears on Google searches for those looking about this unknown PSU thats a lot cheaper then the rest

    just my cents , know the power a few people can pull a product up or down , and nice to see Another Brand/Vendor rep on here- again the power of a well written post and change mind and hearts ..