My guess is the 550watt w/ 8wires is used across several Dell platforms & just got the extra 2wires because it's normal, standard to include them, obviously the negligible extra cost worked out on paper on their end so why not pay to solder them internally as is typical
As I'd said here Aurora R10, 1000W PSU, 8 pin EPS connector ... due to the modular 6pin front panel on the 850-1000w, the 6wire cable in question looks like a cost-cut measure request through the cable-maker which avoids adding the extra x4 terminals, x2 wires, x1 panel 6pin connector
As for power, Buildzoid often says a typical 8pin CPU-EPS connector can handle 'north of 400watts', thus a loaded 8-wire 8pin is rated @ 9Amps per 12v pin = 108w x 4 = 432watts (which I also heard him say). Therefore this 6-wire 8pin is delivering 108 x 3 = ~325watts
Compare Ryzen to Core i9 power draw, when we saw 5950x & 10900k / 11900k reviews, they'd overclock up to 250w & 315watts or so, depending, so it's likely the 6 included wires are barely just, but still with-in max power draw spec, at least during their testing. My other guess is if it wasn't with-in spec during their tests they'd have paid the cost to the cable maker for the items required to add the extra two wires. Make of it what u will
I do think it's clear the 850-1000w 6wire is delivering equal (if not more) power as the 8-wire 550w is over the CPU-EPS end of their 12v rails, so there's no issue here, not for me anyways about the loss of the two wires, which is to say that anyone who upgrades from 550w to the better modular psu has no worries & it'll run the same as if it had been originally ordered w/ the better psu & arrived w/ the 6wire cable anyways, which we assume they tested the top Intel-AMD CPUs & decided things runs in 'spec' w/ 6 (ie not tripping the PSU over-current protection circuitry during overclocking) & costs less on their end etc
In the older models, yes, it got the 6wire GPU & a 4wire CPU, so they were no stranger to paying for a 10wire setup (that tapped two red 6pin panel ports) which makes u wish they'd just supplied the 8wire cable (which would cost less than the prior 10-wire setup)
You WOULD have doubts about moving this cable (& PSU) into a system whose CPU will pull over 325watts, which is why if you're intent on this PSU you'd invest into the Area-51 8wire cable (or make / augment your own) as advised in the post above (see Pages 1 2 3), or, sell it & buy a normal retail type
I don't know about the cost though. You can buy a $150 1000 Watt PSU from a reputable manufacturer and you will get all the cables with it in a bag, regardless if you use them all or not.
I get it, but then I don't get it considering the purchase price of these systems compared to the price of individual retail components. Like, you are already paying a premium so what would be another extra $10 for all the cables?
If you purchase a higher end one with a 4090 at lets say $3,000, would you really not buy it if it was $3,010?
Vanadiel
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6.9K Posts
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December 2nd, 2024 17:48
I guess the question is what it's actually for? Looks like GPU on some older models, and CPU on some newer models.
It's still odd and hopefully some day we get the "official" explanation behind that design decision.
Cass-Ole
6 Professor
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1.8K Posts
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December 4th, 2024 05:35
My guess is the 550watt w/ 8wires is used across several Dell platforms & just got the extra 2wires because it's normal, standard to include them, obviously the negligible extra cost worked out on paper on their end so why not pay to solder them internally as is typical
As I'd said here Aurora R10, 1000W PSU, 8 pin EPS connector ... due to the modular 6pin front panel on the 850-1000w, the 6wire cable in question looks like a cost-cut measure request through the cable-maker which avoids adding the extra x4 terminals, x2 wires, x1 panel 6pin connector
As for power, Buildzoid often says a typical 8pin CPU-EPS connector can handle 'north of 400watts', thus a loaded 8-wire 8pin is rated @ 9Amps per 12v pin = 108w x 4 = 432watts (which I also heard him say). Therefore this 6-wire 8pin is delivering 108 x 3 = ~325watts
Compare Ryzen to Core i9 power draw, when we saw 5950x & 10900k / 11900k reviews, they'd overclock up to 250w & 315watts or so, depending, so it's likely the 6 included wires are barely just, but still with-in max power draw spec, at least during their testing. My other guess is if it wasn't with-in spec during their tests they'd have paid the cost to the cable maker for the items required to add the extra two wires. Make of it what u will
I do think it's clear the 850-1000w 6wire is delivering equal (if not more) power as the 8-wire 550w is over the CPU-EPS end of their 12v rails, so there's no issue here, not for me anyways about the loss of the two wires, which is to say that anyone who upgrades from 550w to the better modular psu has no worries & it'll run the same as if it had been originally ordered w/ the better psu & arrived w/ the 6wire cable anyways, which we assume they tested the top Intel-AMD CPUs & decided things runs in 'spec' w/ 6 (ie not tripping the PSU over-current protection circuitry during overclocking) & costs less on their end etc
In the older models, yes, it got the 6wire GPU & a 4wire CPU, so they were no stranger to paying for a 10wire setup (that tapped two red 6pin panel ports) which makes u wish they'd just supplied the 8wire cable (which would cost less than the prior 10-wire setup)
You WOULD have doubts about moving this cable (& PSU) into a system whose CPU will pull over 325watts, which is why if you're intent on this PSU you'd invest into the Area-51 8wire cable (or make / augment your own) as advised in the post above (see Pages 1 2 3), or, sell it & buy a normal retail type
Vanadiel
6 Professor
•
6.9K Posts
0
December 4th, 2024 15:16
I don't know about the cost though. You can buy a $150 1000 Watt PSU from a reputable manufacturer and you will get all the cables with it in a bag, regardless if you use them all or not.
I get it, but then I don't get it considering the purchase price of these systems compared to the price of individual retail components. Like, you are already paying a premium so what would be another extra $10 for all the cables?
If you purchase a higher end one with a 4090 at lets say $3,000, would you really not buy it if it was $3,010?
(edited)