Happy New Years! Seventh alt coin thread! - page 102.

GabryRox

sr. member

Activity: 600

Merit: 261

Quote from: martyroz on January 09, 2018, 09:36:22 PM

So I'm looking at starting a conversion process to hybrid and here are my options locally;

$1299 ($1014 USD) for the 1080ti hybrid to give 700sols $1.86 per sol
$899 ($702 USD) for the 1070ti hybrid to give 500sols $1.80 per sol
$749 ($585 USD) for the 1070 hybrid to give 450sols $1.66 per sol

Call me crazy but I'm starting to like the look of 1070 hybrids. They are all grossly overpriced, but that's typical for Australia.

Might be typical for Oz but it's pretty much that bad or worse in US and rest of the world right now. Simply impossible to get a decent mining card at anywhere near retail, unless you happen to get onto a random stock up somewhere. I did this with both an MSI 570 8GB ($300 on newegg) and a 4GB (for $270) and moments after i ordered my 1 limit, they were gone, which defaulted to the 2x retail prices 3rd parties are selling them for. I really wonder if any big shipments of anything are in the works for the near future... I mean, how long has it been since Vega's were sold out... close to 2 months now? Just crazy!

martyroz

full member

Activity: 325

Merit: 110

So I'm looking at starting a conversion process to hybrid and here are my options locally;

$1299 ($1014 USD) for the 1080ti hybrid to give 700sols $1.86 per sol
$899 ($702 USD) for the 1070ti hybrid to give 500sols $1.80 per sol
$749 ($585 USD) for the 1070 hybrid to give 450sols $1.66 per sol

Call me crazy but I'm starting to like the look of 1070 hybrids. They are all grossly overpriced, but that's typical for Australia.

R0mi

full member

Activity: 305

Merit: 148

Theranos Coin - IoT + micro-blood arrays = Moon!

Quote from: martyroz on January 09, 2018, 07:17:32 PM

I previously paid little attention to PCIE headers and ignored the fact that there are 1070ti models out there that operate on just one 8-pin (EVGA comes to mind).

As a result, I have build slightly inefficient rigs which have motherboards and PSU's capable of 8 devices, which can only power 5 * dual-pin, due to having a maximum of 10 PCIE headers from the PSU

Would it be dangerous to use an adapter that converts a single PCIE header into two? Specifically with 1070ti's operating at 106W?

My only other option would be to sell off a bunch of dual-pin 1070ti and buy the EVGA single pins to replace them. Or just build a new rig and re-arrange the lot to suit.

No, it is not if you keep the voltage to under 240w or so per GPU.

bdiddle

member

Activity: 75

Merit: 10

So I think a Windows update broke ccminer on my Onda D1800.

Out of no where after a freeze and reboot I can't get my 6x 1060 rig mining with ccminer. All kinds of errors, including cpu_aes and some others.

Only thing I could think of was the Meltdown patch maybe borking something with the cpu.

I even completely installed new drivers and no change, ccminer wont work.

QuintLeo

legendary

Activity: 1498

Merit: 1030

Quote from: Yars on January 09, 2018, 10:34:05 AM

Quote from: un4given on January 09, 2018, 10:11:15 AM

Quote from: Yars on January 09, 2018, 09:42:12 AM

Very informative thread, thanks guys.

I saw all your good feedbacks about riserless motherboards so I purchased 2 Onda 6 GPU boards from Alibaba. They work like a charm but i'm struggling keeping them inside a closed case with a low CFM fans, GPUs are heating too much.

I tried to use some spare Deltas 252 CFM fans, but I can't find in BIOS how to lower fan header voltage in order to decrease the RPM and consumption.
I don't want to keep them at 100% because of noise and don't think the motherboard can handle 3 fans at 3.9A each.

Any ideas?

just buy an external manual Fan regulator. it usually needs a 4 pol molex power

smth like this https://www.amazon.com/HDE-Channel-Multi-Fan-Cooling-Controller/dp/B006UFMH3W/ref=sr_1_7?ie=UTF8&qid=1515507033&sr=8-7&keywords=fan+control+pc

I know about these fan controllers but most of them can't handle more than 2A per fan header.

There are adapters that will let you run a high-wattage fan from a MOLEX for +12VDC power with a second header for the PWM control and RPM sense functions.

QuintLeo

legendary

Activity: 1498

Merit: 1030

Quote from: morro on January 09, 2018, 01:23:18 PM

Hi guys,
I have ordered some ONDA B250 motherboards from Sidonia. Can you please tell me what's the distance between the PCIe slots? Will some AORUS 1080ti (5.5cm wide) fit well next to each other? Or do I have to use <=5 cm cards?

They might fit, but the cooling is going to be terrible due to the VERY LOW space between the fans and the back of the next card.

MagicSmoker

full member

Activity: 420

Merit: 184

Quote from: martyroz on January 09, 2018, 07:17:32 PM

Would it be dangerous to use an adapter that converts a single PCIE header into two? Specifically with 1070ti's operating at 106W?

EE here.

If each 1070 Ti uses 106W then that is a total draw of about 18A from a single PCIe jack on the PSU.

PCIe power uses the "Mini-Fit Jr" interconnect system with 3 wires dedicated to positive regardless of whether it is a 6 or 8 pin connector (that means either 3 or 5 pins are used for negative/ground). If quality Mini-Fit Jr connectors are used and the wires are crimped properly then even 18 AWG is more than sufficient to carry ~6A over the short distances involved here, but crappy connectors or crimps could get into trouble at a mere 1A. Fortunately, it's easy to tell if an interconnect is overloaded - it will get warm - so it really won't hurt to try out connecting 2 cards with a Y-adapter as long as you keep tabs on the temperature (particular at the interconnects - ie, plug and jack). How hot is too hot? Well, hard to say, but "bordering on uncomfortable after 5 seconds" is a reasonable guess. Some heating at the connectors - ie, a noticeable temperature rise, though not even remotely uncomfortable - is perfectly fine.

martyroz

full member

Activity: 325

Merit: 110

Quote from: philipma1957 on January 09, 2018, 07:34:45 PM

what is the psu in mind.

some psu's have cables with 2x pcie heads.

the high end corsair
ax1200i
ax1500i

both can use single head 8 pin or dual head 8 pin

and the dual head 8 pin sell on the corsair website

so what are your psu's

I have;
Corsair AX1200i
Corsair HX1000i
Corsair HX1200
Corsair HX1200
Corsair RM1000x

and every GPU is connected by a double-header already.

What I want to do is for my 1070ti @ 106W, power 2 cards per double-header with two 8-pin to 8+6pin adaptors. So 212W per PCIE double-header using two of these;
https://www.ebay.com.au/itm/GPU-Graphics-Card-Power-Cable-PCI-E-PCIE-8p-Female-to-2-Port-Dual-8pin-6-2p-Male/122725198896?epid=25004565759&hash=item1c92fdec30:g:pzYAAOSwZtlaEW9z

philipma1957

legendary

Activity: 4256

Merit: 8551

'The right to privacy matters'

Quote from: martyroz on January 09, 2018, 07:17:32 PM

I previously paid little attention to PCIE headers and ignored the fact that there are 1070ti models out there that operate on just one 8-pin (EVGA comes to mind).

As a result, I have build slightly inefficient rigs which have motherboards and PSU's capable of 8 devices, which can only power 5 * dual-pin, due to having a maximum of 10 PCIE headers from the PSU

Would it be dangerous to use an adapter that converts a single PCIE header into two? Specifically with 1070ti's operating at 106W?

My only other option would be to sell off a bunch of dual-pin 1070ti and buy the EVGA single pins to replace them. Or just build a new rig and re-arrange the lot to suit.

what is the psu in mind.

some psu's have cables with 2x pcie heads.

the high end corsair
ax1200i
ax1500i

both can use single head 8 pin or dual head 8 pin

and the dual head 8 pin sell on the corsair website

so what are your psu's

GabryRox

sr. member

Activity: 600

Merit: 261

Quote from: jimmykl on January 08, 2018, 09:19:34 PM

Quote from: HagssFIN on January 08, 2018, 06:42:54 PM

Thanks for the replies guys and
thanks for the info about the ONDA board, but the shipping and VAT most likely
kills that idea unless she writes a low value for the customs.

And I already went ahead and bought four pci-e risers.

I was thinking about getting this mb, which lets me to expand up to 6 GPU's if needed.
ASUS PRIME H270-PLUS
https://www.asus.com/Motherboards/PRIME-H270-PLUS/

I have five of those boards and they work very well and are good value (at least in my location). You can expand it to 8 GPU using two M.2 to PCIE adapters (these ones are cool because they connect directly to the riser usb)

That said I recently setup my first riserless rig running linux off a usb stick and if you're expanding it might be worth the shipping + vat once you factor in buying a CPU, SSD, risers and time to set it up.

Good to hear about some good Mobo alternatives. I've been mostly using ASRock H81 BTC Pro R2.0 with good success, but clearly need to get away from that LGA-1150 architecture as those EOL'd CPUs are getting very tough to find at reasonable prices. The 1151 for this board opens up a lot more reasonably priced options CPU-wise, I think i might pick up 1 or 2 of these if they really can support at least 6 GPUs.

martyroz

full member

Activity: 325

Merit: 110

I previously paid little attention to PCIE headers and ignored the fact that there are 1070ti models out there that operate on just one 8-pin (EVGA comes to mind).

As a result, I have build slightly inefficient rigs which have motherboards and PSU's capable of 8 devices, which can only power 5 * dual-pin, due to having a maximum of 10 PCIE headers from the PSU

Would it be dangerous to use an adapter that converts a single PCIE header into two? Specifically with 1070ti's operating at 106W?

My only other option would be to sell off a bunch of dual-pin 1070ti and buy the EVGA single pins to replace them. Or just build a new rig and re-arrange the lot to suit.

JaredKaragen

legendary

Activity: 1848

Merit: 1166

My AR-15 ID's itself as a toaster. Want breakfast?

Quote from: morro on January 09, 2018, 01:23:18 PM

Hi guys,
I have ordered some ONDA B250 motherboards from Sidonia. Can you please tell me what's the distance between the PCIe slots? Will some AORUS 1080ti (5.5cm wide) fit well next to each other? Or do I have to use <=5 cm cards?

The B250 D8P V1.0 is ~6.5cm from center of 16x slot to center of 16x slot. I don't imagine they changed this in 2.0.

wolf_miner

legendary

Activity: 1018

Merit: 1001

Hi I need some help with Onda D1800 BTC, the mobo arrived without bios battery, what kind of battery I have to use, Lithium CR2032 is the correct one? Is available the scheme to connect power button and status led to FP1 connector?

Thanks in advance W_M

morro

newbie

Activity: 28

Merit: 0

Quote from: timeshifter on January 09, 2018, 02:44:23 PM

Quote from: morro on January 09, 2018, 01:23:18 PM

Hi guys,
I have ordered some ONDA B250 motherboards from Sidonia. Can you please tell me what's the distance between the PCIe slots? Will some AORUS 1080ti (5.5cm wide) fit well next to each other? Or do I have to use <=5 cm cards?

Did you get v1 or v2 motherboard?

I have no idea, probably v1? Just ordered today from the link Philip posted: https://leiqing.en.alibaba.com/product/60707942149-803390961/China_New_Top_Sell_Bitcoins_Mining_Motherboard_With_12_PCIE_Ports_B250_Chipset_Intel_Manufacturer.html

At the current insane prices of sha256 miners I'm making a switch to gpu mining. I didn't imagine things to be so complex, so many pieces and cables...

Going back to reading more pages.

philipma1957

legendary

Activity: 4256

Merit: 8551

'The right to privacy matters'

Quote from: timeshifter on January 09, 2018, 02:44:23 PM

Quote from: morro on January 09, 2018, 01:23:18 PM

Hi guys,
I have ordered some ONDA B250 motherboards from Sidonia. Can you please tell me what's the distance between the PCIe slots? Will some AORUS 1080ti (5.5cm wide) fit well next to each other? Or do I have to use <=5 cm cards?

Did you get v1 or v2 motherboard?

same as me the v1 ie 1 short slot blocked by the 24 pin psu header

those aorus are just too fucking wide for any thing.

timeshifter

newbie

Activity: 58

Merit: 0

Quote from: morro on January 09, 2018, 01:23:18 PM

Hi guys,
I have ordered some ONDA B250 motherboards from Sidonia. Can you please tell me what's the distance between the PCIe slots? Will some AORUS 1080ti (5.5cm wide) fit well next to each other? Or do I have to use <=5 cm cards?

Did you get v1 or v2 motherboard?

P00P135

full member

Activity: 1123

Merit: 136

Quote from: morro on January 09, 2018, 01:23:18 PM

Hi guys,
I have ordered some ONDA B250 motherboards from Sidonia. Can you please tell me what's the distance between the PCIe slots? Will some AORUS 1080ti (5.5cm wide) fit well next to each other? Or do I have to use <=5 cm cards?

Safe to assume no, those Aorus are like 3 slot GPU's.

morro

newbie

Activity: 28

Merit: 0

Hi guys,
I have ordered some ONDA B250 motherboards from Sidonia. Can you please tell me what's the distance between the PCIe slots? Will some AORUS 1080ti (5.5cm wide) fit well next to each other? Or do I have to use <=5 cm cards?

Steamtyme

legendary

Activity: 1554

Merit: 2036

Thanks for the links Phil,

The cards have 1 - 8 pin, and 1 - 6 pin.

I was planning on using risers, mostly because I didn't know any better.

This is my first build and I figured I would go for 6 cards right now, because who knows what things will be like in a month or 2.

Yars

newbie

Activity: 31

Merit: 0

Quote from: un4given on January 09, 2018, 10:11:15 AM

Quote from: Yars on January 09, 2018, 09:42:12 AM

Very informative thread, thanks guys.

I saw all your good feedbacks about riserless motherboards so I purchased 2 Onda 6 GPU boards from Alibaba. They work like a charm but i'm struggling keeping them inside a closed case with a low CFM fans, GPUs are heating too much.

I tried to use some spare Deltas 252 CFM fans, but I can't find in BIOS how to lower fan header voltage in order to decrease the RPM and consumption.
I don't want to keep them at 100% because of noise and don't think the motherboard can handle 3 fans at 3.9A each.

Any ideas?

just buy an external manual Fan regulator. it usually needs a 4 pol molex power

smth like this https://www.amazon.com/HDE-Channel-Multi-Fan-Cooling-Controller/dp/B006UFMH3W/ref=sr_1_7?ie=UTF8&qid=1515507033&sr=8-7&keywords=fan+control+pc

I know about these fan controllers but most of them can't handle more than 2A per fan header.

Topic: Happy New Years! Seventh alt coin thread! - page 102. (Read 34166 times)