It's about the wiring, not the PCI-E spec itself.
I don't think they anticipated folks using wiring runs long enough for IIR losses to cause issues, or enough losses to cause noticeable voltage drop to the connector.
Topic: Current best powered risers available? - page 3. (Read 1830 times)
Should be fine. My total length of cables is about 2.5ft. I use extenstions/adapters to go from 6pin to 8pin.
With the extension, my total length would get to about 3.5 ft.
I can't find anywhere in the pcie spec that calls for max cable length?
have I missed something?
Should be fine. My total length of cables is about 2.5ft. I use extenstions/adapters to go from 6pin to 8pin.
How do you tell PCI-E 6-pin with *2* vs *3* +12VDC, do I count the yellow cables? (the black ones are ground cable?)
I'm in the middle of a getting a single Seasonic 1300W PSU to hopefully power 6 rx580s... anything to watch out for?
It's hard sometimes - but oftentimes one of the leads on the +12VDC side will be brown, other times it'll be smaller gauge, other times there is just no way to tell because they used all the same wires for "economy of scale in purchasing" reasons.
Any recommendation for PCIe power cable length?
The PSU comes with PCIe power cables with one 8pin input and two 6+2pin outputs, but the (6+2)pin outputs are too short apart to plug into riser board. Is it safe to add PCIe extention cords to just one of the (6+2)output end of the pcie power cable?
any maximum recommended length?
thanks in advance...
How do you tell PCI-E 6-pin with *2* vs *3* +12VDC, do I count the yellow cables? (the black ones are ground cable?)
I'm in the middle of a getting a single Seasonic 1300W PSU to hopefully power 6 rx580s... anything to watch out for?
It's hard sometimes - but oftentimes one of the leads on the +12VDC side will be brown, other times it'll be smaller gauge, other times there is just no way to tell because they used all the same wires for "economy of scale in purchasing" reasons.
Hi guys,
Is it safe to connect molex or 6-pin cable directly to riser board?
As far as I read, the SATA/molex and SATA/6pin power adapters are the ones that should be avoided?
I bought a few riser boards with 6-pin power socket. Came with sata-6pin adapter cables. Should I be using them or try to connect a 6-pin cable directly from the psu 6-pin socket?
Thanks in advance, I also asked the same question in a few thread I posted regarding dual psu and riser boards.
Is it safe to connect molex or 6-pin cable directly to riser board?
As far as I read, the SATA/molex and SATA/6pin power adapters are the ones that should be avoided?
I bought a few riser boards with 6-pin power socket. Came with sata-6pin adapter cables. Should I be using them or try to connect a 6-pin cable directly from the psu 6-pin socket?
Thanks in advance, I also asked the same question in a few thread I posted regarding dual psu and riser boards.
SATA connectors THEMSELVES are only rated for 54 watts of +12VDC draw, while the PCI-E spec for the bus allows for 75 watts draw.
MOLEX are rated over 150 watts on the connector, the WIRING is what you have to watch there if you put more than one riser on a chain.
PCI-E 6-pin using *2* +12VDC lines is good for almost 200 watts, the ones (not actual PCI-E spec) that have 3 +12VDC lines are good for 288.
Molex and PCI-E 6-pin to riser are safe, SATA is problematic and often UNsafe.
Keep in mind that the power conversion circuitry on the risers is NOT 100% efficient, so your actual draw from the power connector will be a little MORE than what the card itself is actually pulling.
The only issue I have with the Mintcell risers to date is that once in a while the USB cable itself is iffy - but they're standard cables and cheap/easy to replace when that happens.
Thank you!
How do you tell PCI-E 6-pin with *2* vs *3* +12VDC, do I count the yellow cables? (the black ones are ground cable?)
I'm in the middle of a getting a single Seasonic 1300W PSU to hopefully power 6 rx580s... anything to watch out for?
Hi guys,
Is it safe to connect molex or 6-pin cable directly to riser board?
As far as I read, the SATA/molex and SATA/6pin power adapters are the ones that should be avoided?
I bought a few riser boards with 6-pin power socket. Came with sata-6pin adapter cables. Should I be using them or try to connect a 6-pin cable directly from the psu 6-pin socket?
Thanks in advance, I also asked the same question in a few thread I posted regarding dual psu and riser boards.
Is it safe to connect molex or 6-pin cable directly to riser board?
As far as I read, the SATA/molex and SATA/6pin power adapters are the ones that should be avoided?
I bought a few riser boards with 6-pin power socket. Came with sata-6pin adapter cables. Should I be using them or try to connect a 6-pin cable directly from the psu 6-pin socket?
Thanks in advance, I also asked the same question in a few thread I posted regarding dual psu and riser boards.
SATA connectors THEMSELVES are only rated for 54 watts of +12VDC draw, while the PCI-E spec for the bus allows for 75 watts draw.
MOLEX are rated over 150 watts on the connector, the WIRING is what you have to watch there if you put more than one riser on a chain.
PCI-E 6-pin using *2* +12VDC lines is good for almost 200 watts, the ones (not actual PCI-E spec) that have 3 +12VDC lines are good for 288.
Molex and PCI-E 6-pin to riser are safe, SATA is problematic and often UNsafe.
Keep in mind that the power conversion circuitry on the risers is NOT 100% efficient, so your actual draw from the power connector will be a little MORE than what the card itself is actually pulling.
The only issue I have with the Mintcell risers to date is that once in a while the USB cable itself is iffy - but they're standard cables and cheap/easy to replace when that happens.
Good info, thanks for sharing
When I am assembling a rig, it is on a power meter as part of the process - more to "tune" the card settings to hit my 6 amp target power draw at the wall than any other reason, but sometimes it's a handy tool for troubleshooing issues.
Otherwise I don't bother.
Otherwise I don't bother.
Is it safe to connect molex or 6-pin cable directly to riser board?
No it is not safe. Actually depends on the current draw through the wires. There were couple of incidents when I almost caught a fire. On my first rig when I connected 3 risers with 3 sata/molex adapters, the temperature of wires was around 70C, luckily I have a infrared/thermal camera. So never connect risers with adapters more then 2 in parallel. The other day the contact of one adapter burned out, and happily a rig just hanged. These adapters usually are cheap and wires gauge could be lower then needed.
One more example of what could possibly go wrong with the wires (don't related to the adapters):
This outlet was a first in line and nothing was plugged in it, the rig was connected to the last outlet in the line. The outlet was hot around 80C. So you can see someone, maybe the previous tenant, used wire connectors and wrong wire gauge to connect 15 amp outlet in 20amp line.
wow I need one of those cameras... lol
would you recommend using a smart meter to monitor and remote restart the rig? or attach a meter at all at the plug?
based on my expirience any pcie powered molex are great. version 6 version 7 doen't matter. 6pin power = no problem
Gonna replace a couple i suspect might be causing slightly slower hash rates than other identical cards. Figure i might as well do them all.
Prefer molex. Unless there is a molex to 6pin adapter that doesn't need 2 molex connectors as input.
Prefer molex. Unless there is a molex to 6pin adapter that doesn't need 2 molex connectors as input.
Usually if the riser pulls badly, then I sell it. But now I use Mailiya 6-Pack ordered with aliexpress. It came pretty quickly. And it works well.
I expect more from Hero and members. Use search. It's on the manufacturers website, Want more proof contact manf.
Manufacturers in any line of business always exaggerate facts and figures. Proof is from someone (not associated with the manufacturers and unbiased) showing results from making independant tests.
Say i was a manufacturer building a new asic that could mine any coin and only use 100w for 100Th. If i put details on my website with fake tables and graphs and you read that, would you believe me? No you wouldnt. You would ask for proof from someone (or an independant company) that could backup the manufacturers claims.
Hi guys,
Is it safe to connect molex or 6-pin cable directly to riser board?
As far as I read, the SATA/molex and SATA/6pin power adapters are the ones that should be avoided?
I bought a few riser boards with 6-pin power socket. Came with sata-6pin adapter cables. Should I be using them or try to connect a 6-pin cable directly from the psu 6-pin socket?
Thanks in advance, I also asked the same question in a few thread I posted regarding dual psu and riser boards.
Is it safe to connect molex or 6-pin cable directly to riser board?
As far as I read, the SATA/molex and SATA/6pin power adapters are the ones that should be avoided?
I bought a few riser boards with 6-pin power socket. Came with sata-6pin adapter cables. Should I be using them or try to connect a 6-pin cable directly from the psu 6-pin socket?
Thanks in advance, I also asked the same question in a few thread I posted regarding dual psu and riser boards.
SATA connectors THEMSELVES are only rated for 54 watts of +12VDC draw, while the PCI-E spec for the bus allows for 75 watts draw.
MOLEX are rated over 150 watts on the connector, the WIRING is what you have to watch there if you put more than one riser on a chain.
PCI-E 6-pin using *2* +12VDC lines is good for almost 200 watts, the ones (not actual PCI-E spec) that have 3 +12VDC lines are good for 288.
Molex and PCI-E 6-pin to riser are safe, SATA is problematic and often UNsafe.
Keep in mind that the power conversion circuitry on the risers is NOT 100% efficient, so your actual draw from the power connector will be a little MORE than what the card itself is actually pulling.
The only issue I have with the Mintcell risers to date is that once in a while the USB cable itself is iffy - but they're standard cables and cheap/easy to replace when that happens.
I expect more from Hero and members. Use search. It's on the manufacturers website, Want more proof contact manf.
I like Molex riser from Mintcell. And as I know riser ver.008 consumes lower 5W than ver.006.
So if you really care about power or difficult to make power plan, you could consider this. Also, I've just saw someone said riser ver.009 is available now, but I havent tested it yet.
So if you really care about power or difficult to make power plan, you could consider this. Also, I've just saw someone said riser ver.009 is available now, but I havent tested it yet.
You got any proof about the ver008 using less power?
Ahh beat me to it
I like Molex riser from Mintcell. And as I know riser ver.008 consumes lower 5W than ver.006.
So if you really care about power or difficult to make power plan, you could consider this. Also, I've just saw someone said riser ver.009 is available now, but I havent tested it yet.
So if you really care about power or difficult to make power plan, you could consider this. Also, I've just saw someone said riser ver.009 is available now, but I havent tested it yet.
Where is the data showing they use 5W less. I hear from reputable miners these v8's are good... I use 6pin so it makes for a little extra mess in wiring but 5w on a lot of cards is a good deal of power saved.
I like Molex riser from Mintcell. And as I know riser ver.008 consumes lower 5W than ver.006.
So if you really care about power or difficult to make power plan, you could consider this. Also, I've just saw someone said riser ver.009 is available now, but I havent tested it yet.
So if you really care about power or difficult to make power plan, you could consider this. Also, I've just saw someone said riser ver.009 is available now, but I havent tested it yet.
You got any proof about the ver008 using less power?
I like Molex riser from Mintcell. And as I know riser ver.008 consumes lower 5W than ver.006.
So if you really care about power or difficult to make power plan, you could consider this. Also, I've just saw someone said riser ver.009 is available now, but I havent tested it yet.
So if you really care about power or difficult to make power plan, you could consider this. Also, I've just saw someone said riser ver.009 is available now, but I havent tested it yet.
Is it safe to connect molex or 6-pin cable directly to riser board?
No it is not safe. Actually depends on the current draw through the wires. There were couple of incidents when I almost caught a fire. On my first rig when I connected 3 risers with 3 sata/molex adapters, the temperature of wires was around 70C, luckily I have a infrared/thermal camera. So never connect risers with adapters more then 2 in parallel. The other day the contact of one adapter burned out, and happily a rig just hanged. These adapters usually are cheap and wires gauge could be lower then needed.
One more example of what could possibly go wrong with the wires (don't related to the adapters):
This outlet was a first in line and nothing was plugged in it, the rig was connected to the last outlet in the line. The outlet was hot around 80C. So you can see someone, maybe the previous tenant, used wire connectors and wrong wire gauge to connect 15 amp outlet in 20amp line.
My friend has a farm and never had a problem with the 3 capacitors. Not even one from hundreds.
All of mine are 3 cap molex. To be fair, i haven't had a problem either. I have a couple cards that seem a tad slower than they "should be".. figured trying new risers might help. And then thought why not just upgrade them all hehe.
Hi guys,
Is it safe to connect molex or 6-pin cable directly to riser board?
As far as I read, the SATA/molex and SATA/6pin power adapters are the ones that should be avoided?
I bought a few riser boards with 6-pin power socket. Came with sata-6pin adapter cables. Should I be using them or try to connect a 6-pin cable directly from the psu 6-pin socket?
Thanks in advance, I also asked the same question in a few thread I posted regarding dual psu and riser boards.
Is it safe to connect molex or 6-pin cable directly to riser board?
As far as I read, the SATA/molex and SATA/6pin power adapters are the ones that should be avoided?
I bought a few riser boards with 6-pin power socket. Came with sata-6pin adapter cables. Should I be using them or try to connect a 6-pin cable directly from the psu 6-pin socket?
Thanks in advance, I also asked the same question in a few thread I posted regarding dual psu and riser boards.
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