Cold Test Results (~22°C Ambient)

For the testing of PSUs, we are using high precision electronic loads with a maximum power draw of 2700 Watts, a Rigol DS5042M 40 MHz oscilloscope, an Extech 380803 power analyzer, two high precision UNI-T UT-325 digital thermometers, an Extech HD600 SPL meter, a self-designed hotbox and various other bits and parts. For a thorough explanation of our testing methodology and more details on our equipment, please refer to our How We Test PSUs - 2014 Pipeline post.

Most PSUs only bother to meet the certification requirements for a 115 VAC input, which is sufficient for overall certification regardless whether they meet the requirements for 230 VAC as well. This is not the case for the Cybercore 1300W, as XPG's PSU is capable of reaching 80Plus Platinum efficiency levels regardless of the input voltage. It has an average nominal load range (20% to 100% of the unit's capacity) efficiency of 93.3% when powered from a 230 VAC source, which drops down to 91.8% when powered from an 115 VAC source.

As promised by XPG, the fan of the Cybercore PSU doesn't even start until the load on the PSU exceeds 30%. Due to its very high efficiency, the internal temperatures of the PSU remains reasonably low even with the fan turned off. Once the fan starts, it will be only marginally audible at first, despite its dual ball-bearing engine. When the load is higher than 800 Watts, the fan’s speed will increase exponentially and will eventually reach its maximum possible speed. The end result is that the Cybercore PSU will get loud when fully loaded, but not unexpectedly so for a compact PSU with that high an output.

XPG Cybercore 1300W : Inside & Out Hot Test Results (~45°C Ambient)
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  • shabby - Friday, March 11, 2022 - link

    Can those 2/3 slot heatsinks really dissipate that much heat?
  • Wereweeb - Friday, March 11, 2022 - link

    Water cooling will pretty much have to become the standard for flagship GPU's, even with GAA coming after 2025 (And might still take a while to reach consumer GPU's).
  • at_clucks - Wednesday, March 16, 2022 - link

    The General Appropriations Act? What does the Gaelic Athletic Association have to do with GPUs? The Georgia Alternate Assessment can't help at all here.

    But seriously, AMD was apparently eying Samsung's 3nm GAA for Zen5. Then again being Samsung I'm sure they probably squeeze less from GAA than TSMC is from FinFET. And I doubt that GPUs will see that anytime soon.
  • Einy0 - Friday, March 11, 2022 - link

    If you crash from a 500 Watt transient spike and you have a normal desktop CPU with a 750 Watt or more power supply. You probably have a crappy or defective power supply.
  • meacupla - Saturday, March 12, 2022 - link

    or maybe, just maybe, nvidia is incapable of designing good power regulation circuitry
  • inighthawki - Saturday, March 12, 2022 - link

    I had a 750W PSU with a 3090 and a 5950 and it would regularly (once every few days) trigger the overcurrent protection and turn off. It was one of the best seasonic PSUs money can buy. I saw other instances of people with the same problem.

    The 3090 is known to hit transient spikes up to 600W, and when you couple in 100+W for the CPU, then MB, RAM, hard drives, etc. You can *trivially* go well beyond 750W.
  • Rοb - Sunday, March 13, 2022 - link

    If you look at the efficiency ratings at 50% a Platinum will get you 92% and Titanium 94% at 50% load:

    The 2% difference translates into $2 per year for each hundred spent on electricity - so if you have a 10 year warranty (like on most Titanium rated supplies) you can probably afford to pay an extra $40 to move up a grade, and to overprovision a couple of hundred watts. It's likely that $40 won't quite cover the difference between the two power supplies but the doubling of warranty and lack of need to upgrade in the future can be worth the extra cost.

    You could also just buy your power supply from the well known company that supplies components to most of the OEMs, certain models are priced very much lower than other brands; just a matter of taking the time to compare.
  • Byte - Sunday, March 13, 2022 - link

    People also cannot imaging needing something like a 3090 that is $1500 retail. But we have it. And they sell like hotcakes. They have some crazy transient loads and 4090 might turn into an insane doozy with DOUBLE the Cudas!!!
  • Oxford Guy - Sunday, March 13, 2022 - link

    When will we stop seeing irrational designs like this PSU?

    The reviewer heaps praise upon a design that is suitable only if one cannot hear. Stuffing so many watts into a small box is foolish. Reliability is meaningless if you get tinnitus and noise pollution.
  • DanNeely - Monday, March 14, 2022 - link

    Probably not until the first GPUs start shipping with them.

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