FSP300-60PNA toasty resistor

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • Bungz
    Senior Member
    • May 2013
    • 133
    • UK
    #1

    FSP300-60PNA toasty resistor

    Bit of a odd PSU this, its huge and has a very hefty weight to it yet only 300w.

    Has a very meaty 5V rail which would be nice to use with my socket A stuff.

    On inspection it has a dead Jamicon and a large resistor that has got very hot.

    Anyone any idea if this resistor would be ok to resleeve and use again or does it need to be swapped? I have no idea of what its original rating would be.

    Thanks in advance.
    Attached Files
    Tags: None
    • R_J
      Badcaps Legend
      • Jun 2012
      • 9583
      • Canada
      #2
      Re: FSB300-60PNA toasty resistor

      If it's not open it is likely ok, measure the value with a meter, then replace it.

        Comment

        • petehall347
          Badcaps Legend
          • Jan 2015
          • 4434
          • United Kingdom
          #3
          Re: FSB300-60PNA toasty resistor

          pic says 7.4 ohms .. might be 7 or 7.5 ... sort of depends on its job . hard to say without schematic .
          one case scenario its used to monitor current .
          or maybe to limit current . or as well as .
          does supply seem to work ok as is ?

            Comment

            • stj
              Great Sage 齊天大聖
              • Dec 2009
              • 31163
              • Albion
              #4
              Re: FSB300-60PNA toasty resistor

              btw, it's made by FSP.
              FSB is a Russian security agency!

                Comment

                • Bungz
                  Senior Member
                  • May 2013
                  • 133
                  • UK
                  #5
                  Re: FSB300-60PNA toasty resistor

                  Originally posted by petehall347
                  pic says 7.4 ohms .. might be 7 or 7.5 ... sort of depends on its job . hard to say without schematic .
                  one case scenario its used to monitor current .
                  or maybe to limit current . or as well as .
                  does supply seem to work ok as is ?
                  Haven't fired it up yet was in a lot of old stuff i was given.

                  I think I will re sleeve it and see what happens, I just wondered as it seems to have got very hot but it hasn't degraded under the paint, seems solid.

                    Comment

                    • petehall347
                      Badcaps Legend
                      • Jan 2015
                      • 4434
                      • United Kingdom
                      #6
                      Re: FSP300-60PNA toasty resistor

                      it will likely run hot as it has a sleeve fitted .

                        Comment

                        • Dan81
                          SNES-powered
                          • Oct 2013
                          • 1866
                          • Romania
                          #7
                          Re: FSP300-60PNA toasty resistor

                          You can run without it safely. I think that's the minimum load resistor (though don't take my word since it's been a quite long time since I had a FSP of the nearly same design) and it was the same as yours in the problem PLUS dead 5vSB.

                          Fixed it and powered a 3GHz P4HT then a Pentium E2180 for a long time before it finally got traded for a PC with a S754 Sempron, a R9250, 80GB Maxtor 6Y series, a Delux PSU (which was replaced with a beefy 400W Deer unit recapped).

                          I remember the original setup I gave was some crappy Celeron w/ a 40GB Maxtor D740x (that didn't even have Windows, just a Ubuntu install) , 512MB DDR2 ,ASRock MB, said FSP PSU (recapped) and a Sony DVDROM that god knows if it worked.

                          So long story short, you can run it safely without it, but I'd suggest recapping it first. Jamicon and Teapo don't EVER mix well with heat.
                          Main rig:
                          Gigabyte B75M-D3H
                          Core i5-3470 3.60GHz
                          Gigabyte Geforce GTX650 1GB GDDR5
                          16GB DDR3-1600
                          Samsung SH-224AB DVD-RW
                          FSP Bluestorm II 500W (recapped)
                          120GB ADATA + 2x Seagate Barracuda ES.2 ST31000340NS 1TB
                          Delux MG760 case

                            Comment

                            • Bungz
                              Senior Member
                              • May 2013
                              • 133
                              • UK
                              #8
                              Re: FSP300-60PNA toasty resistor

                              Will see how it effects the rails and will maybe leave it out in that case.

                              The Teapos look fine but you are right ideally they would be swapped.

                              Thanks for the reply

                                Comment

                                Previous template Next

                                Related Topics

                                Collapse
                                • jinu_j
                                  Dell 2209WA - power supply - Fusible Resistor replacement
                                  by jinu_j
                                  Hi

                                  I am trying to repair an ancient Dell 2209WA Monitor which suddenly shut off with a pop sound. On investigation found that one of the fusible resistors had blown. Further investigation identified multiple components as faulty because of which the fusible resistor blew. Please refer the attached circuit diagram showing the components that were found to be damaged.

                                  1. FR950 - blown fusible resistor - 0.2 Ohm 1W
                                  2. Q950 - shorted Q950 MOSFET - 650V 10A N Channel Mosfet
                                  3. R835 - Blown Resistor - 20KOhm SMD resistor
                                  4. D930 - Shorted Schottkey Diode...
                                  05-03-2025, 10:51 PM
                                • mikey5791
                                  Need help to replace burned resistor in 350w atx psu
                                  by mikey5791
                                  Hi to all forum members,

                                  Got this faulty 350 watt atx psu dirt cheap from a local online seller as i am keen to use it as a learning tool to repair faulty power supply.
                                  The faulty part is quite obvious from the burn area near the 16pin KA7500 BD pwm. The fuse is still intact with good continuity.

                                  Upon power on ac, there is 5vdc standby power on cathode of diode D14 and about 10vdc on cathode of diode D13.(This should be the aux power to generate the 12v and 5v rail.)
                                  Initially i replace the two burned resistors near my marked red arrow to 200 ohm resistor...
                                  12-26-2024, 04:55 AM
                                • MidnightRoller
                                  Can a resistor lose resistance after hot air?
                                  by MidnightRoller
                                  I am curious if a 0402 resistor could go from 43 ohm to 0. In electronics class and my experience a resistor can degrade and gain resistance all the way up to not being able to conduct at all. I have never heard of a resistor decreasing in resistance and becoming 0 ohm or a dead short… that's not the direction they fail… or so I thought.

                                  I was attempting to remove a wson8 chip on an iMac motherboard and it required a lot of heat, on one side of the chip were 3 0402 resistors that were very close. I popped the chip out unintentionally out of the tweezers and sent those resistors...
                                  02-02-2022, 11:46 PM
                                • artvandalai
                                  What resistor ohm will work better to repair this waterpik?
                                  by artvandalai
                                  The resistor on this waterpik blew. I changed it with the a similar spec 47ohm 2 watt yageo resistor but it still keeps blowing the resistor. Checking with the multimeter the motor, capacitor, diodes, and thermal fuse all checked normal. Will a higher ohm resistor work better? What ohm resistor will work better to repair this waterpik? This video is showing the repair with a 56 ohm resistor https://www.youtube.com/watch?v=_J7_rV7ui1Y
                                  3 Photos
                                  01-05-2025, 04:10 PM
                                • chth96
                                  Is it okay to replace 1/2 watt resistor with 1 watt resistor in AC/DC adapter?
                                  by chth96
                                  I have purchased an 100-240v AC/5v 2a DC adaptor from aliexpress,and a month ago It smelled burning when I plugin it powerstrip.
                                  Since then, This AC/DC adaptor have been out of order.
                                  But A few days ago,I replace 0.5 watt resistor with 1 watt resistor(1ohm) in this adapter.
                                  After replacing resistor,It succeed to recharge all of android phone.And When I measure voltage on the two pins of USB port,It shows 5.5v
                                  Is it okay to replace 1/2 watt resistor with 1 watt resistor in AC/DC adapter?
                                  And Is there any possibility that it will suddenly explode as well as to be out...
                                  12-03-2023, 04:40 AM
                                • Loading...
                                • No more items.
                                Working...