Author

Topic: Powering risers with SATA cable isn't entirely bad (Read 141 times)

member
Activity: 223
Merit: 13
I think the reason why SATA cables burst up in flame is when you connect two GPUs to a SATA cable at the same time, this is a very bad idea and also I prefer molex cable than SATA still it depends on which GPU I plan to power
legendary
Activity: 3738
Merit: 1708
Back in the old GPU days of the Radeon 7950, 7970, R9 280X, R9 290, I actually also used to mine and used the SATA cable. And the reason was that the power taken from that SATA cable was like 20 Watts, so its was "safer" you can say. You could only do this with certain cards. Tahiti were ok, however Pitcairn weren't.

Pitcairn were the R9 270X and Radeon 7850,7870, etc GPUs. They sometimes had smaller power connectors like 1 PCIe 6 pin, and since it could only pull 75 Watts from that external power connection, it had to pull more from the SATA cable. Hence not a good idea.

WIth RX series GPUs, it got worse because the SATA usually pulled 50 Watts from those cables and it lead to all these problems.
legendary
Activity: 1610
Merit: 1026
Is using SATA cable to power GPU entirely bad or those SATA are good only for GPUs that draw less power? I don't get it with the advice people are passing this days, there is nothing wrong with those SATA cable if your GPU is like gtx1650, 1050ti, 1660, 1660super, 1660Ti, I've used SATA cable for two years now and nothing happened, these GPUs only draw 50watts to 70watts max
On these video cards, I would also use sata raisers.
The main thing is to use high-quality power supplies with thick cables and high-quality connectors.
And the classic link:
https://www.gpuminingresources.com/p/psu-cables.html
It is better to buy 4 pin raisers if you do not use video cards more powerful than 3070
full member
Activity: 1386
Merit: 220
You're all fucking idiots. Not everyone mines Eth, and not everyone underclocks and undevolts.
The PCIe slot is rated at 75 watts, SATA connector at 54. Do the the fucking math!

Yes you can use SATA powered risers if you know what you're doing but anyone asking the
question obviously doesn't know what they are doing so the answer is always no.


That's harsh, why use them mean word on here mate? Not everyone are mining experts they starts from somewhere and this forum is for guiding them right, why the f word? Mr know all

"The f word", seriously? This isn't day care for children.

I did it because it's irresponsible to recommend to newbies that it's ok to use SATA powered risers.
But it seems you completely missed that point. It also exposes people who ignore the content and focus
on tone, like you did. Wink

Call me an arrogant asshole and I won't disagree, but I always try to give the best advice and I don't
hesitate to call out bad advice, which is exactly what I did here.
member
Activity: 223
Merit: 13
You're all fucking idiots. Not everyone mines Eth, and not everyone underclocks and undevolts.
The PCIe slot is rated at 75 watts, SATA connector at 54. Do the the fucking math!

Yes you can use SATA powered risers if you know what you're doing but anyone asking the
question obviously doesn't know what they are doing so the answer is always no.


That's harsh, why use them mean word on here mate? Not everyone are mining experts they starts from somewhere and this forum is for guiding them right, why the f word? Mr know all
full member
Activity: 1386
Merit: 220
You're all fucking idiots. Not everyone mines Eth, and not everyone underclocks and undevolts.
The PCIe slot is rated at 75 watts, SATA connector at 54. Do the the fucking math!

Yes you can use SATA powered risers if you know what you're doing but anyone asking the
question obviously doesn't know what they are doing so the answer is always no.

full member
Activity: 952
Merit: 110
Just make sure you don't buy cheap power supply and you won't have problem powering GPUs with SATA cables, it's been proven that new GPUs draw less watt from risers and more watts from 6+8pin cables instead, also it's safer to use one SATA cable for one riser
sr. member
Activity: 504
Merit: 252
Simply measure the amp with a clamp meter.

You will actually notice that high end gpus draw LESS from the pcie slot compared to lower end gpus !!!


It totally depends on how the power delivery is designed on the card/pcb itself. And the easiest way to check it is with a clamp meter.

1070 and even 1080ti never exceeded 40 watts for me but eg. 470 drew 70+ watt.

And the worst example was a 750ti even with 6 pin power, still drawing 60+ watt from the pcie slot and only like 20 watt from the 6 pin = total design failure ...


Also always check with algos which actually use the full die eg. ProgPow and its variants.
member
Activity: 518
Merit: 30
$CYBERCASH METAVERSE
You are mixing the whole thing OP, you are been warned not to use SATA cables that comes with riser because they are cheap built not because they can't power your GPU at all, cheap built wires can't handle watts they can burst in fire easily
jr. member
Activity: 33
Merit: 2
Bunch of misinformation in here. The pcie slot is rated for 75w, unless there is something wrong with the voltage balancing on the card it will never go above this. Typically power draw at lower loads, even on a 3090, isn't going to exceed 60w when mining on a properly undervolted card. I've run sata on all kinds of cards over the years with all kinds of algos, including a bunch of 1080tis, 2080tis, 3080s and 3090s with 0 issues. Few simple rules if you do this.

1. Never ever daisy chain. 1 card per cable.
2. High quality PSU with good cables. Cheap PSU with cheap high gauge cables? Don't do it.
3. Never use extensions

That said, you're better off powering them with molex or pcie connectors for added safety as those cables will have higher gauge wire and can handle more power. Often upwards of double the spec if they're quality cables. Don't cheap out on power delivery for mining. DYOR.
member
Activity: 182
Merit: 14
I used pcie 6pin to SATA cable to power all my gtx1660s and always make sure I tough the SATA cable for temperature 🌡️ to avoid fire but they work very well probably because they draw 56 to 60watts per GPU but don't do this with Vega 56 or RTX cards the possibility of starting fire is high
hero member
Activity: 751
Merit: 517
Fail to plan, and you plan to fail.
Is using SATA cable to power GPU entirely bad or those SATA are good only for GPUs that draw less power? I don't get it with the advice people are passing this days, there is nothing wrong with those SATA cable if your GPU is like gtx1650, 1050ti, 1660, 1660super, 1660Ti, I've used SATA cable for two years now and nothing happened, these GPUs only draw 50watts to 70watts max

Sata risers are okay for low power GPUs (under 150W TDP), sata to molex/pcie adapters (that ship with some risers) arent.
member
Activity: 280
Merit: 11
Is using SATA cable to power GPU entirely bad or those SATA are good only for GPUs that draw less power? I don't get it with the advice people are passing this days, there is nothing wrong with those SATA cable if your GPU is like gtx1650, 1050ti, 1660, 1660super, 1660Ti, I've used SATA cable for two years now and nothing happened, these GPUs only draw 50watts to 70watts max
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