Mistakenly purchased PT315-53 fan for a PT315-52, can I make it work?

Omig12
Omig12 Member Posts: 3 New User

I mistakenly bought a PT315-53 (23.QDQN2.001) CPU Fan but I have a PT315-52 (23.Q8FN2.001); when installed, it didn't spin. Is there anything I can do to make it work?

Answers

  • Puraw
    Puraw ACE, Member Posts: 14,554 Trailblazer

    There maybe a mismatch with the GPU fan and your software may get confused (wrong display), other than that I think it may work as the plug, volt and watt are identical, not sure about the length of the cable? The replacement part numbers differ though:

    23.Q8FN2.001 23.Q8FN2.002 for PH315-52

    DFS5K223052836 FMAQ DFS531005PL0T FML9 for PH315-53

    Give it a try but make sure that you disconnect the battery first, if the fan screw holes don't line up get the correct fan.

  • StevenGen
    StevenGen ACE Posts: 12,737 Trailblazer

    The two fans are completely different, the PT315-52 main fan is coupled to 2x smaller fans in the thermal shield assembly and its a specific size fan and shape, you can modify it to fit.

    PT315-52 Thermal Module and its fan

    PT315-52 main fan

    PT315-53 Fan is totally different shape and won't fit into the PT315-52 thermal module.

  • Omig12
    Omig12 Member Posts: 3 New User

    Yeah, it fits perfectly and the cable length is (at least to my eyes) identical with the same form factor overall. I suspect there's probably some firmware block that seem to not allow it to spin. Even during the BIOS boot (when both fans usually spin at close to full speed) the fan doesn't spin. Thanks for looking it up and trying to help.

  • Omig12
    Omig12 Member Posts: 3 New User

    Hi Steven,

    This is not quite the case, I suppose there might be some overlap between spec names and form factor due to the ship shortage back in 2020, the internals of my PT315-52 looks identical to the PT315-53. From what I recall the main difference between these two specs is that this 52 has a RTX 2070 MaxQ while the 53 has a RTX 3060.

    You can see the old fan (to the left), the new one seconds before full installation (closer to the center), and the battery plug disconnected just in case. I believe both fans have the exact same specifications in terms of capacity and energy requirements. My question is geared more towards if there exists a way to allow the BIOS to use the fan by enrolling a firmware key or something of that nature.

    I'm interested on getting this fan working because I expect this revision of the fan won't suffer from the same issues as the previous one (but this part is just speculation and wishful thinking on my part). Any information towards these effects would be invaluable to get this working.

    Nonetheless, thanks for the reply and the effort to save me from a potentially catastrophic evening trying to hack 2X fan. That would certainly be a nightmare.

  • Puraw
    Puraw ACE, Member Posts: 14,554 Trailblazer

    Reset your BIOS to factory defaults maybe it will detect the new CPU fan. Update your GPU, etc. drivers.