Daisy Chain Molex Connectors
- Thread starter snips86x
- Start date
depends on what your wanting powering? and what psu your using etc
fans, no problems
drives, well depending on lane rating and how much each device pulls/users
yes if it was high powered uses like one in the loop was gpu etc for a example, not that one would be etc, as they tend to pull the most
fans, no problems
drives, well depending on lane rating and how much each device pulls/users
yes if it was high powered uses like one in the loop was gpu etc for a example, not that one would be etc, as they tend to pull the most
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I'm running a 1kw PSU and I'm planning on daisy chaining 600T Integrated Fan Controller, 5.25" NZXT Card Reader, bitfenix Hydra or NZXT Hue and NZXT blue LED's.
yes the card reader has a USB 3, but I will not be connecting it, I have enough already!
Sorry I'd forgotten the last one:
1 - 600T Fan Controller
2 - NZXT Aperture Card Reader
3 - BitFenix Hydra/NZXT Hue (both LED controllers)
4 - 1x 100cm NZXT Blue LED's (maybe add another one later on)
No, not quite a splitter. It's when you get a peripheral like the 600T integrated fan controller that has a molex input & output.
A bit like this:
My main concern is, because I'm only using 1x modular molex lead with 3 molex connectors on it and my 2x SSD & ODD are being powered by just this. 2x SSD's are using a 4 pin molex which splits to 2x sata and the ODD has it's own molex to sata adapter.
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I'm trying to minimise the cabling as my cable management it not great.
Basically, you know how many 4pin molex you get on on 1 modular cable right??
This cable has about 3 4pin connectors:
1st is powering the ODD & 600T fan controller using the above splitter type thing
2st is powering 2 SSD's
3rd will be powering the above. (LED Controller, Card Reader & LED's) but I dont want to overload it by connecting too many together.
without knowing the power req of the parts etc, it's hard to say, i've never had so many on one, but that's not to say it will or won't work either.
but i don't or wouldn't like to say try it either as im unsure, and if unsure, to me means dont do it, in all solutions there is another way, just needs a bit more thinking.
3 things on one yes, ow powered like fans.
3 drives yes, 2 drives one drv fine.
throw anything else into the mix and im not sure at all, so wouldn't like to guess, need to find the power outputs of the other devices, then a better guess.
but i don't or wouldn't like to say try it either as im unsure, and if unsure, to me means dont do it, in all solutions there is another way, just needs a bit more thinking.
3 things on one yes, ow powered like fans.
3 drives yes, 2 drives one drv fine.
throw anything else into the mix and im not sure at all, so wouldn't like to guess, need to find the power outputs of the other devices, then a better guess.
i think its psu limited, so some psu will draw more than others
just found this as well,
quote"
Typical Molex 4-pin power connectors (Molex 8981) are rated at up to 11 Amperes per pin. That comes to 55W on the 5V pin and 132W on the 12V pin. So you should be fine on the Molex connector itself.
If I were to split a molex, that one would have to provide power for 8 drives, right? that is 8 * 20 = 160W. I'll probaby have to substract the 5V draw from this.
All things considered, it might just be safe.
As for the the PSU and the wires from the PSU to the connectors, that is more difficult. You should start by looking up the specs on your power supply to see how much 5V and 12V current it can supply. If it is not single-rail, then see how much it can supply to each of your modular cables.
The PSU can take it: 42A for 12v (single rail) and 24A for 5v
For the cables themselves, if it uses the same wire as a typical Molex connector, that would be 18 AWG, which is typically used up to 16 Amperes for chassis wiring. So that is 80W on the 5V wire and 192W on the 12V wire. If you are lucky, they might have used 14 AWG wire on the cables, since they have two Molex connectors on each cable, and 14 AWG wire is typically used up to 32 Amperes. That would give you 160W on the 5V wire and 384W on the 12V wire.
"end quote
just found this as well,
quote"
Typical Molex 4-pin power connectors (Molex 8981) are rated at up to 11 Amperes per pin. That comes to 55W on the 5V pin and 132W on the 12V pin. So you should be fine on the Molex connector itself.
If I were to split a molex, that one would have to provide power for 8 drives, right? that is 8 * 20 = 160W. I'll probaby have to substract the 5V draw from this.
All things considered, it might just be safe.
As for the the PSU and the wires from the PSU to the connectors, that is more difficult. You should start by looking up the specs on your power supply to see how much 5V and 12V current it can supply. If it is not single-rail, then see how much it can supply to each of your modular cables.
The PSU can take it: 42A for 12v (single rail) and 24A for 5v
For the cables themselves, if it uses the same wire as a typical Molex connector, that would be 18 AWG, which is typically used up to 16 Amperes for chassis wiring. So that is 80W on the 5V wire and 192W on the 12V wire. If you are lucky, they might have used 14 AWG wire on the cables, since they have two Molex connectors on each cable, and 14 AWG wire is typically used up to 32 Amperes. That would give you 160W on the 5V wire and 384W on the 12V wire.
"end quote
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