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Thread: Corsair TX650 V2 on newer PC

  1. #1
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    Default Corsair TX650 V2 on newer PC

    Hi everybody,

    I've been using a Corsair TX650 V2 (CMPSU-650TXV2, single rail/54A +12V)for some time now and still use it with my current PC

    i7 6700k @4.5GHz (~1.30V)
    RTX 2080 @ ~2000/8100 with power limit to 130% (can go upwards of 300W in theory)
    2x8GB DDR4 3200
    3 SSD
    2 HDD (7200+5400)
    etc

    I'm not worried about the wattage, 650W should be more than enough, but after reading some here and there I'm kinda worried that using a 8 year old PSU might not be the best idea.

    I've not had any issue with it really and voltages seem fine but should I look for a newer one to be on the safe side or would it still be ok to use?

    For reference this is what voltages look like when playing a demanding game (Metro Exodus)
    (taken from HWInfo so don't know how reliable they are)

    2019-03-23 18_24_24-HWiNFO64 v6.00-3620 Sensor Status.jpg
    (never seen it go lower than 12.0V)

    CPU and GPU power consumption while gaming
    2019-03-23 18_39_17-HWiNFO64 v6.00-3620 Sensor Status.jpg
    2019-03-23 18_39_48-HWiNFO64 v6.00-3620 Sensor Status.jpg

    Thanks!

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    You have money for a 2080, but not a new PSU?

    How odd.

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    Quote Originally Posted by jonnyGURU View Post
    You have money for a 2080, but not a new PSU?

    How odd.
    Not exactly made of money and that 2080 was more of a gift to myself, never had such a high end GPU before.

    But that's besides the point, I just didn't think that the PSU could potentially be a problem until very recently when reading this board and others.
    Thus, this thread asking for advice.

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    It's just so old that no one can predict how much longer it's going to last.

    It's based off the Seasonic S12II, so it's not a very good PSU by today's standards.

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    djazz9 (03-23-2019)

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    Quote Originally Posted by jonnyGURU View Post
    It's just so old that no one can predict how much longer it's going to last.

    It's based off the Seasonic S12II, so it's not a very good PSU by today's standards.
    I'll play it safe and buy another one then (thinking TX650M (2017) for around 70)
    Thanks for the reply!

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    Isn't the TX650 v2 DC-DC for 3.3v and 5v?
    Looks so when you see the output specs at least.
    If so I'd say it's ok for modern builds.
    "The one who says it cannot be done should never interrupt the one who is doing it."

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    Default

    Quote Originally Posted by djazz9 View Post
    Hi everybody,

    I've been using a Corsair TX650 V2 (CMPSU-650TXV2, single rail/54A +12V)for some time now and still use it with my current PC

    i7 6700k @4.5GHz (~1.30V)
    RTX 2080 @ ~2000/8100 with power limit to 130% (can go upwards of 300W in theory)
    2x8GB DDR4 3200
    3 SSD
    2 HDD (7200+5400)
    etc

    I'm not worried about the wattage, 650W should be more than enough, but after reading some here and there I'm kinda worried that using a 8 year old PSU might not be the best idea.

    I've not had any issue with it really and voltages seem fine but should I look for a newer one to be on the safe side or would it still be ok to use?

    For reference this is what voltages look like when playing a demanding game (Metro Exodus)
    (taken from HWInfo so don't know how reliable they are)

    2019-03-23 18_24_24-HWiNFO64 v6.00-3620 Sensor Status.jpg
    (never seen it go lower than 12.0V)

    CPU and GPU power consumption while gaming
    2019-03-23 18_39_17-HWiNFO64 v6.00-3620 Sensor Status.jpg
    2019-03-23 18_39_48-HWiNFO64 v6.00-3620 Sensor Status.jpg

    Thanks!
    There are two major problems with a rather old but high end power supply.
    First of all, its bulk capacitor and secondary capacitors have aged. Aged capacitors have lower capacity and higher ESR, so when the instant power demand from the graphic card grow high, the output capacitors can't smooth the output current pretty well because they store less energy and the instant vdroop is larger than that of brand new caps.
    Second, modern big GPUs like RX Vegas and RTX2080s have quite large current spikes exceeding the PCI Express CEM specification. Rising the power limit make the situation even worse. The graphic card runs out of PCIE spec. The compatability of PSU design was verified with only the high end graphic cards 8 years ago. The capacitors' capacity and ESR have degraded. Guess what? It's quite possible that the +12V output voltage will overshoot or undershoot too far during transient load, and when that happens, the machine might freeze or reboot.
    It's very likely that your aged high end PSU will serve well in a less demanding mid-range build. Just don't use it with demanding hardwares.
    It's been a hard day's night and I've been working like a dog.

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    Thanks for the feedback everyone, really appreciate it.

    If I can just add a question, as I said in an earlier post I was thinking of going with a TX650M (2017) for 70.
    Would that be a good option for my build or should I consider something else around the same price point (or higher if need be)?

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    get a better psu....i would have a 750 watt psu myself..maybe 800watts

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    Default

    Why, for what?
    I use 550W PSU (Cougar GX-F) for my VEGA64 Build, even with +50% Power its works.

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