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SilverStone launches high-quality PCIe 4.0 (x16) riser cable
As reported in a global press release issued in July , 2021 the PCI-Express4.0 (x16) riser cable with support for PCI-Express4.0 (x16), has now been released.
It makes use of a high-quality ribbon cable that is lightweight and easy to handle. It is possible to use it without affecting the performance of the graphics card by mounting a high-performance EMI shield and using a reinforced connector that increases durability.
The external dimensions are 117 mm wide, 263 mm deep, and 9 mm high, with a cable length of 220 mm. The cable has an internal diameter of 9 mm. The cable is priced 85 EUR/USD.
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SilverStone offers High quality PCIe 4.0 (x16) riser cable (RC05) - 07/21/2021 08:46 AM
SilverStone Technology announced the PCI-Express4.0 (x16) riser cable RC05 that uses a high-quality ribbon cable ....
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waltc3
Senior Member
Posts: 1390
Joined: 2014-07-22
Senior Member
Posts: 1390
Joined: 2014-07-22
#5938457 Posted on: 08/16/2021 03:59 PM
It is interesting, because the GPUs were not designed electrically to sit on a riser. They are designed to plug directly into the appropriate motherboard slot. The riser has to introduce some latencies at the very least, I would think. My computer is out of sight and as I know exactly what's in it, I have no desire to look at it 24/7. It never crosses my mind.
It is interesting, because the GPUs were not designed electrically to sit on a riser. They are designed to plug directly into the appropriate motherboard slot. The riser has to introduce some latencies at the very least, I would think. My computer is out of sight and as I know exactly what's in it, I have no desire to look at it 24/7. It never crosses my mind.
Mineria
Senior Member
Posts: 5403
Joined: 2007-05-05
Senior Member
Posts: 5403
Joined: 2007-05-05
#5938466 Posted on: 08/16/2021 04:18 PM
I'm curious what makes this cable different enough to be gen 4.0. Unless there's some extra shielding and wires made of silver, I don't think there's much you can do.
Also, if a riser like this in a consumer motherboard is unreliable enough that you have to step down to 3.0 speeds, how are server motherboards with many x16 slots supposed to work? Not only is the distance to the 7th slot the same (if not a farther) distance from the CPU, but there's a whole lot more EMI due to all the other slots along the way.
Propper Gen 4 cables get tested at 160GB/s, they got better wires, shielding pr. wire pair together with ground wires instead of a wrap around covering all, and are tested for WUE and WHEA errors.
There is also something about meeting a differential at 85Ohm for Gen 4.
It is interesting, because the GPUs were not designed electrically to sit on a riser. They are designed to plug directly into the appropriate motherboard slot. The riser has to introduce some latencies at the very least, I would think. My computer is out of sight and as I know exactly what's in it, I have no desire to look at it 24/7. It never crosses my mind.
A good riser cable does not add any latency nor any other performance drops that you can see or measure with regular games/tools.
I'm curious what makes this cable different enough to be gen 4.0. Unless there's some extra shielding and wires made of silver, I don't think there's much you can do.
Also, if a riser like this in a consumer motherboard is unreliable enough that you have to step down to 3.0 speeds, how are server motherboards with many x16 slots supposed to work? Not only is the distance to the 7th slot the same (if not a farther) distance from the CPU, but there's a whole lot more EMI due to all the other slots along the way.
Propper Gen 4 cables get tested at 160GB/s, they got better wires, shielding pr. wire pair together with ground wires instead of a wrap around covering all, and are tested for WUE and WHEA errors.
There is also something about meeting a differential at 85Ohm for Gen 4.
It is interesting, because the GPUs were not designed electrically to sit on a riser. They are designed to plug directly into the appropriate motherboard slot. The riser has to introduce some latencies at the very least, I would think. My computer is out of sight and as I know exactly what's in it, I have no desire to look at it 24/7. It never crosses my mind.
A good riser cable does not add any latency nor any other performance drops that you can see or measure with regular games/tools.
HawaiianBrian
Senior Member
Posts: 277
Joined: 2014-10-22
Senior Member
Posts: 277
Joined: 2014-10-22
#5938472 Posted on: 08/16/2021 04:30 PM
Not in my case. Vertical or horizontal- No difference at all.
True, considering vertical GPU end up with worse temps.
Not in my case. Vertical or horizontal- No difference at all.
schmidtbag
Senior Member
Posts: 6551
Joined: 2012-11-10
Senior Member
Posts: 6551
Joined: 2012-11-10
#5938474 Posted on: 08/16/2021 04:36 PM
I'm aware. I'm asking what makes gen4 risers physically different. As @Mineria pointed out, there's better shielding, but what makes the wires "better" unless they switch to a different metal, like silver? Seeing as some people seem to suggest you still need to step down to gen3, that to me tells me the wires aren't really a whole lot better.
gen3 risers can't run gen4 cards properly
I'm aware. I'm asking what makes gen4 risers physically different. As @Mineria pointed out, there's better shielding, but what makes the wires "better" unless they switch to a different metal, like silver? Seeing as some people seem to suggest you still need to step down to gen3, that to me tells me the wires aren't really a whole lot better.
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Senior Member
Posts: 4939
Joined: 2020-08-03
I'm curious what makes this cable different enough to be gen 4.0. Unless there's some extra shielding and wires made of silver, I don't think there's much you can do.
Also, if a riser like this in a consumer motherboard is unreliable enough that you have to step down to 3.0 speeds, how are server motherboards with many x16 slots supposed to work? Not only is the distance to the 7th slot the same (if not a farther) distance from the CPU, but there's a whole lot more EMI due to all the other slots along the way.
gen3 risers can't run gen4 cards properly