I use the win10 nicehash miner software, mostly mining with excavator and nbminer

Need to clarify some things:

besides the Y adapter from 8pin to 2 6+2 pins that caused the meltdown I did not use any other adapters only what came with the PSUs. After damage I only use what came with the PSUs. The risers are MOLEX powered and to be on the safe side it is now 1 cable exclusive to one riser, MOLEX connector from the PSUs.

All PSUs are from corsair, I have read in their forums they use AWG16 from the first cable. I found on their forums one of the usual pigtail cables are specified up to 300W.
Right now Im testing the following:

- Reset all GPUs to factory settings
- Measure temps on the connectors with infrared tool

So I found this german article about stressing the NVIDIA 12 Pin connector: https://www.igorslab.de/tester-in-gefahr-wieviel-watt-ueberlebt-der12-pin-connector-der-nvidia-geforce-rtx-3080-und-rtx-3090-ohne-zu-schmelzen/

I find the following info useful:

- Temps are rising pretty fast within 10 minutes
- up to 144°C and connectors start smelling but not melting already

So far im mining for 25 Minutes and the hottest connector I can measure is the ones from the 1080ti and the 3070 around 52°C. I thought the connectors on the PSU sides are the hottest since this was where my meltdown occured. But these are cool @ around 35°C.

Lets assume one pigtail cable can make up to 300W before it starts melting. The TDP of 3080 is 320W. That would explain how it happened but is it really like 20W above specification can lead to temperatures in the 3 digit area? Is it like once you go above the specification it only gets warmer continously?

Can you please tell me what to measure with a multimeter exactly and how can I make sure it fits my cabling?

I have still some questions here. I used one of the PCIe cables that has two x 62 pin at the GPU end. Just like mentioned here, second picture: https://www.gpuminingresources.com/p/psu-cables.html

according to this, 288W per cable is fine. according to the TDP of the 3080 it is 320W. When card reaches 320W it pulls like 50W off the riser. 270 left, which should be inside the 288W with a single cable?

nevertheless: I picked  up a second PSU as currently I cant get my hands on a single 2400w psu atm. This one has 3 of those cables so I powered 3080 with 2 of them and the 3070 with one. now Im paranoid that I need 2 more cables, 3 dedicated for 3080 and 2 for the  3070.

I thought about that the CPU EPS12V ports aint used and that with such an adapter: https://www.caseking.de/kolink-adapter-6-pin-pcie-auf-eps12v-8-pin-cpu-anschluss-schwarz-10cm-zuad-765.html

I could supply 2 extra cables for cpu. I know it says adapters are shit in general but this one should be one of the good guys?!

Well, I found the problem:

that was the PSU connector that powered the 3080. I used an Y splitter to get 3 ports powered but that was a stupid idea because I wasn't aware of the fact that unlike on linux, in windows clocks and powerlimits might reset which results in the rig pulling max wattage.

In that case, a 3080 with 320W TDP is too much for a single PCIe 8Pin cable that specifications are capped at 288W

Lucky me, it is just the PSU and not the whole rig or even worse, my whole house...

PSUs: I am using two PSUs, secondary PSU is controlled through an adapter connected to the primary PSU.

Primary PSU is Corsair rmi1000W powering 3090 and 1080ti. those cards are the oldest addition so they sit on the motherboard dir3ctly.

Secondary PSU is Corsair 650W. It has two PCIE power cables. each one powers one of the other cards. since this is already using all connectors plus one Y adapter i power both risers by one seperate SATA powercable. Is this a bad idea?

I will reinstall today

hi batsonxl! I plugged out the 3070 first, same problem. after that I switched the riser of 3080, same problem. after that I put the 3080 in the riser of 3070 to check if it might be not the riser but the usbcable or pcie x1 slot. problem remains

Hi folks,

I have a small rig with 4 cards running:

- ryzen 1800x
- AX370 Gaming K7 Mainboard
- 1x 3090
- 1x 3080
- 1x 1080ti
- 1x 3070

two cards are sitting in the pcie x16 slots available on the board. two cards are connected with riser. I used these risers for months before, they should not be faulty. NVM I already switched risers meanwhile and that doesnt fix the problem:

the 3080 mined for two weeks now with memclock +1000, PL 70% and to make sure the VRAM does not throttle FAN set to 85% which resulted in tjunction of max 98°.

however, I installed the 4th card 3070 yesterday and since then I had a bluescreen and after that the 3080 shows some strange behaviour:

after reboot it shows u normal. when starting nicehash software everything looks fine. as soon as I start mining the stats like temp, fan speed, ec dissappears and so does the card in nicehash GUI.

In HWInfo I can also see several stats of the card dissappear. the card still does show up in device manager of windows. I tried to mine with the card in a complete new build and it worked. so I dont feel like the card is dead. unfortunately in my main rig i still cant get it to work again.

I tried the following:
- reinstall nvidia driver
- reset bios to defaults
- set above 4g decoding: enable and PCIe Gen: 2 @BIOS (had it working with defaults)
- swap risers, problem follows the card
- usefactory clocks by setting up afterburner once, save and reboot without afterburner loading.

anybody has a tip for me? I'm close to RMAing the card but since it is booting and surviving benchmarks I dont even know what to complain about, except mining which is not what i will complain about obv.

best regards

looking for a wallet for this coin, anybody can suggest one? preferred android, or win10

Original Thread with Pics here:

https://bitcointalk.org/index.php?topic=5260597.msg54747840#msg54747840

Hey guys,

I'd like to sell some 19" 8 GPU max servercases. I add all the other stuff you need so you can use GPUs+ MOBO and with platinum efficiency:

- 1x 19" 4HE case for 8x GPUs, 1x ATX Mainboard, 2x ATX Netzteil, 3 120mm FANs Front
- 3x Industrielüfter 3000RPMs in Front preinstalled
- inkl. 8x PCI-Express Riser
- inkl. HP DPS-1200FB-1A 1200W Server PSU with Platinum Efficiency
- inkl. Pico-PSU für ATX Mainboards
- inkl. Breakout Board for PSU with 10x PCI-Express 8-Pin Powercable
- inkl. 8x PCI-E 8-Pin Y-cable
- inkl. M.2 to PCI-Express Adapter

I have 5, pricing is 159,- usd plus shipping that highly depends on your country (location is germany). crypto accepted

Hallo,

Aus einer Auflösung eines Mining Projektes werden hier 19" 4HE/4U Rackgehäuse zwecks 8x GPU Mining angeboten. Die Gehäuse sind im guten gebrauchten Zustand. Mit diesem Paket können Sie ihr Motherboard und ihre Grafikkarten direkt einbauen und loslegen. Lieferumfang:

- 1x 19" 4HE Gehäuse aus Aluminium mit Platz für 8x GPUs, 1x ATX Mainboard, 2x ATX Netzteil, 3 120mm FANs Front
- 3x Industrielüfter 3000RPMs in Front vorinstalliert
- inkl. 8x PCI-Express Riser
- inkl. HP DPS-1200FB-1A 1200W Server Netzteil mit Platinum Efficiency
- inkl. Pico-PSU für ATX Mainboards
- inkl. Breakout Board für Netzteil mit 10x PCI-Express 8-Pin Powerkabel
- inkl. 8x PCI-E 8-Pin Y-kabel
- inkl. M.2 to PCI-Express Adapter

für 159,- inkl. Versand, Zahlungen in Crpyot möglich

I power my pico psu by the dps1200 (custom soldered) so that wont happen. I am only worried a bit that putting one psu on another might increase temps and shorten lifetime of the psu...

under linux: why cant my 2080 mine ethash under claymore? see error in screenshot. i tried 2 2080 and 3 different linux os all of them have same error

https://ibb.co/VvNmLbT

i was talking about dual server psu hp dps1200 i love the cheap platinum efficiency and durability of server psus

Tyvm

Thx. You have a better solution to deliver Power two both psus simoultaniously?

guys, i have some concerns about wether this fit into my already given case. I came up with the idea to just use 2x dp1200 from my old rigs. I can save time and money. I thought I might use one of these

https://www.amazon.de/InLine-Netz-Y-Kabel-Kaltgeräte-Buchse-Kaltgeräte-Stecker-schwarz/dp/B000VFF4C8/ref=asc_df_B000VFF4C8/?tag=googshopde-21&linkCode=df0&hvadid=309862900548&hvpos=1o4&hvnetw=g&hvrand=4557074628529620998&hvpone=&hvptwo=&hvqmt=&hvdev=t&hvdvcmdl=&hvlocint=&hvlocphy=9043985&hvtargid=pla-564082589504&psc=1&th=1&psc=1&tag=&ref=&adgrpid=61705962935&hvpone=&hvptwo=&hvadid=309862900548&hvpos=1o4&hvnetw=g&hvrand=4557074628529620998&hvqmt=&hvdev=t&hvdvcmdl=&hvlocint=&hvlocphy=9043985&hvtargid=pla-564082589504

thoughts?

ty guys im looking forward to get a delta 2400w. Seems like parallelminer is based in USA?! Im from Europe, Germany. You guys know any seller based in EU so shipping doesnt take too long? maybe only for breakout boards? I found some PSUs on ebay. If there are none I guess Ill go with parallelminer.com: How long will shipping take?

Hi all,

Last year Ive build gpu mining rigs with 8x rx580 and a hp dps 1200 Server psu by using a breakout board from China. This year id like to go for 8x radeon vii but These are very Power demanding with up to 300w per card. I can undervolt but still would like to be able to fit 8 cards in my 4U server case Nd have the ability to go full Power.

I had a look at ebay, found one of these blade Center IBM psu with 2900w but could not find a breakout board at aliexpress. Instead, I found several PSUs for mining around 80 euros even with 80+gold Standard. My question is: what would you guys go for when you need much Power supply with high efficiency at small costs?

Regards