Thursday, October 13th 2022

be quiet! Introduces 12VHPWR Adapter Cable for RTX 4090 and RTX 4080 Graphics Cards

be quiet!, the German manufacturer for premium PC components, is today releasing its 12VHPWR 12+4-pin adapter cable for ATX 2.X-compliant be quiet! power supplies. This cable offers an alternative to bulky and short standard adapters that come with next-generation graphics cards like NVIDIA's GeForce RTX 4090 and 4080 models. It features an elegant black sleeve and connects two be quiet! PCI-Express 12-pin sockets on compatible be quiet! power supplies for a maximum power throughput of up to 600 watts.

While the 12VHPWR adapter cable works with all current, modular be quiet! power supplies that have at least two be quiet! PCI-Express sockets, users are still advised to check power recommendations of the graphics card manufacturer. A general recommendation for the new Founders Edition cards from NVIDIA can be found below. To prepare for future GPU launches, be quiet! is also working on ATX 3.0 compatible power supplies. Dark Power 13 is scheduled for launch in early 2023, with Dark Power Pro 13 following a bit later. Other power supply series in the be quiet! portfolio will be reworked for ATX 3.0 compatibility in the near future as well.
The 12VHPWR cable is as of today available for purchase at a recommended retail price of €19.90 / $16.90 / £16.99.
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29 Comments on be quiet! Introduces 12VHPWR Adapter Cable for RTX 4090 and RTX 4080 Graphics Cards

#26
jdavid
According to Silverstone's documentation for the ST1500-TI (Silverstone 1500W Titanium), pushing more than 150W through any one of the PSU PCIe 8pin cables voids your warranty. So to get the full 600W you would need a 4x1 power cable. ( (4) 8 Pin PCIe connectors, and (1) 12vhpwr connector )

It would seem to me that using this cable might void the warranties on many power supplies.

SilverStone 1500 Watt Titanium Product Page and Documentation
* Power supply connector overuse definition
A single PCIe 8pin cable and connector’s maximum current rating is 12.5A, which is 150W (+12V x 12.5A). So SilverStone’s warranty will not cover damages or malfunction resulting from the use of a graphics card or expansion card with a single PCIe 8pin connector that exceeds standard 225W total power draw (150W from PCIe 8pin connector + 75W from PCIe motherboard slot). Similarly, a graphics card or expansion card with dual PCIe 8pin connectors that exceed 375W total power draw (300W from two PCIe 8pin connectors + 75W from PCIe motherboard slot) will also not be covered under warranty.
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#27
ZetZet
jdavidAccording to Silverstone's documentation for the ST1500-TI (Silverstone 1500W Titanium), pushing more than 150W through any one of the PSU PCIe 8pin cables voids your warranty. So to get the full 600W you would need a 4x1 power cable. ( (4) 8 Pin PCIe connectors, and (1) 12vhpwr connector )

It would seem to me that using this cable might void the warranties on many power supplies.

SilverStone 1500 Watt Titanium Product Page and Documentation
This one is a weird unit, doesn't include any daisy chained cables, so it kind of makes sense that it's limited to 150w per connector. Corsair and Evga units for example have 8 pin connectors power supply side, but they use daisy chained cables so 300w is fine.
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#28
jdavid
I'm getting a distinct impression that the documented electrical specifications for the standard are 150 W, and the test specification for the connecter is 300 W, so some companies choose the lower of the two competing specs, and some companies choose the tested physical maximum.

To me, it seems like total Chaos as these new GPUs are pulling down so many Watts that these decades-old discrepancies are now being tested, and flushed out.

It also seems like PSU manufacturers are only partially motivated to release optimal cables for old supplies and have an anti-pattern benefit to release new PSUs first.
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#29
D1m3b4g
jdavidAccording to Silverstone's documentation for the ST1500-TI (Silverstone 1500W Titanium), pushing more than 150W through any one of the PSU PCIe 8pin cables voids your warranty. So to get the full 600W you would need a 4x1 power cable. ( (4) 8 Pin PCIe connectors, and (1) 12vhpwr connector )

It would seem to me that using this cable might void the warranties on many power supplies.

SilverStone 1500 Watt Titanium Product Page and Documentation
The more interesting thing is the official SilverStone cable they've launched to fulfil the 4000 series 12pin ask is only 2x8 pin at the PSU end.
www.silverstonetek.com/en/product/info/power-supplies/pp14-eps/

So SilverStone are effectively selling a cable for use with their own products that appears, given your statements around the 1500W model, to invalidate the warranty?
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