Results 1 to 9 of 9

Thread: Seasonic Focus Plus 750w Review @Tomshardware

  1. #1
    Join Date
    Sep 2017
    Location
    Romania
    Posts
    226
    Thanks Thanks Given 
    96
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Default Seasonic Focus Plus 750w Review @Tomshardware


  2. The Following 5 Users Say Thank You to Al3xand3r For This Useful Post:

    ManoloKosh (10-20-2017), Orion (10-20-2017), Philipus II (10-20-2017), Tator Tot (10-20-2017), turkey3_scratch (10-20-2017)

  3. #2
    Join Date
    Aug 2014
    Location
    Poland
    Posts
    1,080
    Thanks Thanks Given 
    368
    Thanks Thanks Received 
    76
    Thanked in
    49 Posts

    Default

    Great, it has no major flaws related to performance whatsoever. Two EPS, too. Nice.

  4. #3
    Join Date
    Sep 2017
    Location
    Romania
    Posts
    226
    Thanks Thanks Given 
    96
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Default

    No major flaws but it has a relative poor performance in transient tests at 3.3V rail and is noisy.

  5. #4
    Join Date
    Dec 2015
    Location
    Spain
    Posts
    270
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Default

    This is not what I'd call noisy, it is a quiet PSU at low and mid loads. Give me fairly loud @500w+ over this 800RPM+ at low loads crap every day.

  6. #5
    Join Date
    Mar 2016
    Location
    Spain
    Posts
    703
    Thanks Thanks Given 
    491
    Thanks Thanks Received 
    8
    Thanked in
    7 Posts

    Default

    Solid performer at an awesome price. I would pay a bit more for a better fan and I'd also remove in-cable caps, though, but every unit has its flaws: in this case, I have no bad thoughts about this one, overall.

  7. #6
    Join Date
    Sep 2017
    Location
    Romania
    Posts
    226
    Thanks Thanks Given 
    96
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Default

    This is not what I'd call noisy, it is a quiet PSU at low and mid loads. Give me fairly loud @500w+ over this 800RPM+ at low loads crap every day.
    I agree with you, as at low load is inaudible but if installed in a computer with a power consumption of about 500-650W then this PSU gets louder, by comparison with a RM750X which remain silent.
    Last week i bought for my brother-in-law some Focuses (550w model) and some be quiet! Straight Power 10 - 400 and i maked some tests with both models and various PC configurations and it's feel the difference of noise level between those when i approched the ear close to PSU (it needed to do that because in that populated office was a high ambiental noise like is in any office, and that ambiental noise make also a hair dryer to seem a silent device). The be quiet! is always inaudilbe but the Focus it's not so silent at high loads (FX8350 and an old GTX570) and the noise at higher load is worst at 750W model than 550w model.
    This is the point for which i call this PSU a noisy one.

  8. #7
    Join Date
    Sep 2010
    Location
    New Jersey, USA
    Posts
    1,441
    Thanks Thanks Given 
    937
    Thanks Thanks Received 
    26
    Thanked in
    24 Posts

    Default

    "An AC power cord is also provided." No mention of the AWG.

    "We don't expect much from Hong Hua, but apparently Seasonic does since it's guaranteeing the SSR-750FX for 10 years." Is that because Seasonic bought the bearings, and supplied them to Hong Hua for inclusion into their fans?

    " . . . a CM02X that blocks current through the X cap discharge resistor when AC voltage is connected. It also automatically discharges the X cap through the discharge resistor when AC is disconnected." Does this feature make the PSU safe to handle when it is unplugged? I remember a discussion about residual charge making user intrusion unsafe.
    Core i7 4770K @4.3GHz + iGPU | GA-Z87X-UD4H | 2x8GB Crucial Ballistix DDR3@1600MHz
    Prolimatech Armageddon heatsink w/ 2 x 140mm NF-A14 PWM fans
    Samsung 840 Pro 512GB SSD | WD Red 3TB backup disk | Seagate 1 TB SSD USB file drive
    Fractal Design Define R5 case w/2 x NF-A14 ULN front fans | no exhaust fan; grill removed
    PSU Seasonic X-650 Gold

  9. #8
    cheapie's Avatar
    cheapie is offline That weird furry girl they warned you about
    Join Date
    Sep 2013
    Location
    Earth, I think
    Posts
    338
    Thanks Thanks Given 
    28
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Default

    Quote Originally Posted by ehume View Post
    " . . . a CM02X that blocks current through the X cap discharge resistor when AC voltage is connected. It also automatically discharges the X cap through the discharge resistor when AC is disconnected." Does this feature make the PSU safe to handle when it is unplugged? I remember a discussion about residual charge making user intrusion unsafe.
    Those are generally for discharging the "X capacitors" (noise suppression on the input, the usually-yellow rectangular plastic ones). They will not discharge the bulk caps (or whatever you want to call them - the big electrolytics on the primary side) since the bridge rectifier is in the way. This means that voltage should not be present on the power connector after it's unplugged, but there may still be some inside the unit unless those capacitors have their own discharge system.

    Here's a diagram:

    The IC would go in series with the resistor across the left cap (100K), and disconnect it when (and only when) power is applied. It does nothing for the one across the right cap (10K). That right resistor may or may not be present, and may or may not have its own disconnect system.
    Last edited by cheapie; 10-31-2017 at 03:54 AM.

  10. The Following User Says Thank You to cheapie For This Useful Post:

    ehume (10-22-2017)

  11. #9
    Join Date
    Mar 2016
    Location
    Germany
    Posts
    81
    Thanks Thanks Given 
    101
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Default

    I don't know if Aris is going to read this but let's give it a try:
    Are there IR shots available from the OTP shutdown?
    Do you remember the power supplys behaviour after the shutdown?

Similar Threads

  1. Replies: 4
    Last Post: 09-05-2018, 02:23 PM
  2. Seasonic Focus Plus Gold 850 PSU Review @Tomshardware
    By Al3xand3r in forum PC Power Supply Discussion
    Replies: 2
    Last Post: 11-29-2017, 10:45 AM
  3. Seasonic FOCUS PLUS Gold & Platinum 750W Review @[H]ardOcp
    By Al3xand3r in forum PC Power Supply Discussion
    Replies: 0
    Last Post: 10-25-2017, 06:09 AM
  4. Seasonic Focus Plus 750W Gold Review
    By Oklahoma Wolf in forum PC Power Supply Discussion
    Replies: 24
    Last Post: 08-15-2017, 05:50 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •