Rig plante à l'ajoute d'un deuxième GPU
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Sans aucune certitude, je dirais que c’est une défaillance de la carte mère
Mais c’est difficile de diagnostiquer sans les logs -
voilà le screen
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@wwallace Si tu pouvais poster le contenu de
/var/log/miner/gminer/gminer.logça serait cool ! Toutes les infos sont probablement là-dedans -
@Décentraliseur a dit dans Rig plante à l'ajoute d'un deuxième GPU :
var/log/miner/gminer/gminer.log
c’est ça ?
miner log
±---------------------------------------------------------------+
Algorithm: Ethash
DevFee: 0.65 %
Stratum server:
host: eth.cruxpool.com:5555
user: wwallace
password: x
Power calculator: on
Color output: on
Watchdog: on
API: http://127.0.0.1:42010
Log to file: /var/log/miner/gminer/gminer.log
Selected devices: GPU0 GPU1
Intensity: 100 100
Temperature limits: 90/120 90/12016:41:12 AMD Driver: 20.40
16:41:35 Connected to eth.cruxpool.com:5555 [54.39.18.195]
16:41:35 Authorized on Stratum Server
16:41:35 New Job: 577ca318 Epoch: #455 Block: #13678030 Diff: 4.000G
16:41:35 Started Mining on GPU0: MSI Unknown AMD GPU 8GB [0000:03:00.0]
16:41:35 Started Mining on GPU1: MSI Unknown AMD GPU 8GB [0000:07:00.0]
16:41:39 New Job: 1ee1e63b Epoch: #455 Block: #13678030 Diff: 4.000G
16:41:44 New Job: 1a6dc016 Epoch: #455 Block: #13678030 Diff: 4.000G
16:41:45 GPU1: Generating DAG for epoch #455 [Single Buffer 4664 MB]
16:41:45 GPU0: Generating DAG for epoch #455 [Single Buffer 4664 MB]
16:41:49 New Job: 00692749 Epoch: #455 Block: #13678030 Diff: 4.000G
16:41:51 New Job: e6bbd7a1 Epoch: #455 Block: #13678031 Diff: 4.000G
16:41:51 New Job: c311fecd Epoch: #455 Block: #13678031 Diff: 4.000G
16:41:51 GPU0: DAG generated in 6.17s [757 MB/s]
16:41:51 GPU0: DAG verification passed
16:41:51 GPU1: DAG generated in 6.35s [734 MB/s]
16:41:51 GPU1: DAG verification passed
16:41:54 New Job: c9719abf Epoch: #455 Block: #13678032 Diff: 4.000G
16:41:54 New Job: 3089c0b4 Epoch: #455 Block: #13678032 Diff: 4.000G
16:41:59 New Job: 285b986f Epoch: #455 Block: #13678032 Diff: 4.000G
16:42:04 New Job: 5fef142c Epoch: #455 Block: #13678032 Diff: 4.000G
±–±------±----------±-----±----±------------+
| ID GPU Speed Shares Power Efficiency |
±–±------±----------±-----±----±------------+
| 0 Unknown 33.03 MH/s 0/0/0 46 W 717.95 KH/W |
| 1 Unknown 32.93 MH/s 0/0/0 46 W 715.84 KH/W |
| 65.95 MH/s 0/0/0 92 W 716.90 KH/W |
±–±------±----------±-----±----±------------+
±–±------±-----±----±—±-----+
| ID GPU Temp Fan Core Mem |
±–±------±-----±----±—±-----+
| 0 Unknown 37/54 7 % 1180 1154 |
| 1 Unknown 27/44 10 % 1180 1154 |
±–±------±-----±----±—±-----+
16:42:05 Pool: eth.cruxpool.com:5555 Shares/Minute: 0.00
16:42:05 Pool Hashrate: 0 H/s Efficiency: 0.00 %
16:42:05 Uptime: 0d 00:00:30 Electricity: 0.001 kWh
16:42:09 New Job: b4f4ec0f Epoch: #455 Block: #13678032 Diff: 4.000G
16:42:14 New Job: c28b5aed Epoch: #455 Block: #13678032 Diff: 4.000G
16:42:19 New Job: b363ea12 Epoch: #455 Block: #13678032 Diff: 4.000G
16:42:24 New Job: 230fa241 Epoch: #455 Block: #13678032 Diff: 4.000G
16:42:29 New Job: 9ece262b Epoch: #455 Block: #13678032 Diff: 4.000G
16:42:34 New Job: 389bdb92 Epoch: #455 Block: #13678032 Diff: 4.000G
±–±------±----------±-----±----±------------+
| ID GPU Speed Shares Power Efficiency |
±–±------±----------±-----±----±------------+
| 0 Unknown 33.03 MH/s 0/0/0 55 W 600.53 KH/W |
| 1 Unknown 32.85 MH/s 0/0/0 55 W 597.31 KH/W |
| 65.88 MH/s 0/0/0 110 W 598.92 KH/W |
±–±------±----------±-----±----±------------+
±–±------±-----±----±—±-----+
| ID GPU Temp Fan Core Mem |
±–±------±-----±----±—±-----+
| 0 Unknown N/A 9 % 0 0 |
| 1 Unknown 32/48 10 % 1180 1154 |
±–±------±-----±----±—±-----+
16:42:35 Pool: eth.cruxpool.com:5555 Shares/Minute: 0.00
16:42:35 Pool Hashrate: 0 H/s Efficiency: 0.00 %
16:42:35 Uptime: 0d 00:01:00 Electricity: 0.002 kWh
16:42:39 New Job: 58db0965 Epoch: #455 Block: #13678032 Diff: 4.000G
16:42:44 New Job: d08f3f8e Epoch: #455 Block: #13678032 Diff: 4.000G
16:42:45 Error on GPU0: Device not responding, check overclocking settings
16:42:49 Miner terminated, watchdog will restart process after 10 secondsMiner screen is running
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@Décentraliseur a dit dans Rig plante à l'ajoute d'un deuxième GPU :
@wwallace Si tu pouvais poster le contenu de
/var/log/miner/gminer/gminer.logça serait cool ! Toutes les infos sont probablement là-dedansvoilà pour teamredminer :
=== Last 50 lines of /var/log/miner/teamredminer/teamredminer.log ===
[2021-11-24 16:50:17] GPU 0 Starting DAG generation for epoch 455, 4.55 GB (single buffer mode).
[2021-11-24 16:50:19] Pool eth.cruxpool.com received new job. (job_id: 52981402, diff 0.931 / 4000 MH)
[2021-11-24 16:50:24] Pool eth.cruxpool.com received new job. (job_id: b3e25e41, diff 0.931 / 4000 MH)
[2021-11-24 16:50:28] GPU 1 DAG generation finished in 10.967 seconds.
[2021-11-24 16:50:28] GPU 0 DAG generation finished in 10.935 seconds.
[2021-11-24 16:50:29] Pool eth.cruxpool.com received new job. (job_id: 297876a1, diff 0.931 / 4000 MH)
[2021-11-24 16:50:34] Pool eth.cruxpool.com received new job. (job_id: 196fb5d8, diff 0.931 / 4000 MH)
[2021-11-24 16:50:39] ------------------------------------------------------------------------------------------------
[2021-11-24 16:50:39] Mining ethash with 2 GPU workers
[2021-11-24 16:50:39] GPU PCIe CUs CoreMHz SocMHz MemMHz TEdge TJct TMem FanPct FanRpm VDDC Power ETH Cfg
[2021-11-24 16:50:39] 0 03:00.0 32 1180 1200 1154 39C 44C 54C 5.88% 162 768 mV 57 W A192 ()
[2021-11-24 16:50:39] 1 07:00.0 32 1180 1200 1154 40C 45C 56C 9.80% 320 768 mV 58 W A192 ()
[2021-11-24 16:50:39] () Gpu is still tuning.
[2021-11-24 16:50:39]
[2021-11-24 16:50:39] Stats Uptime: 0 days, 00:00:31
[2021-11-24 16:50:39] ----------------------------------------- GPU Status -------------------------------------------
[2021-11-24 16:50:39] GPU 0 [39C, fan 5%] ethash: 11.61Mh/s, avg 11.47Mh/s, pool 0.000 h/s a:0 r:0 hw:0
[2021-11-24 16:50:39] GPU 1 [40C, fan 9%] ethash: 11.56Mh/s, avg 11.53Mh/s, pool 0.000 h/s a:0 r:0 hw:0
[2021-11-24 16:50:39] Total ethash: 23.18Mh/s, avg 23.00Mh/s, pool 0.000 h/s a:0 r:0 hw:0
[2021-11-24 16:50:39] ----------------------------------------- Pool Status ------------------------------------------
[2021-11-24 16:50:39] eth.cruxpool.com ethash: 22.31Mh/s, avg 22.09Mh/s, pool 0.000 h/s a:0 r:0
[2021-11-24 16:50:39] ------------------------------------------------------------------------------------------------
[2021-11-24 16:50:39] Pool eth.cruxpool.com received new job. (job_id: 39a6c0c1, diff 0.931 / 4000 MH)
[2021-11-24 16:50:44] Pool eth.cruxpool.com received new job. (job_id: 49af9e74, diff 0.931 / 4000 MH)
[2021-11-24 16:50:49] Pool eth.cruxpool.com received new job. (job_id: 9e826f2b, diff 0.931 / 4000 MH)
[2021-11-24 16:50:54] Pool eth.cruxpool.com received new job. (job_id: 4c0638d4, diff 0.931 / 4000 MH)
[2021-11-24 16:50:59] Pool eth.cruxpool.com received new job. (job_id: 90608f82, diff 0.931 / 4000 MH)
[2021-11-24 16:51:04] Pool eth.cruxpool.com received new job. (job_id: 2f0d07ba, diff 0.931 / 4000 MH)
[2021-11-24 16:51:09] ------------------------------------------------------------------------------------------------
[2021-11-24 16:51:09] Mining ethash with 2 GPU workers
[2021-11-24 16:51:09] GPU PCIe CUs CoreMHz SocMHz MemMHz TEdge TJct TMem FanPct FanRpm VDDC Power ETH Cfg
[2021-11-24 16:51:09] Pool eth.cruxpool.com received new job. (job_id: ded3738e, diff 0.931 / 4000 MH)
[2021-11-24 16:51:09] 0 03:00.0 32 0 0 0 0C 0C 0C 8.63% 243 65 mV 0 W A512 ()
[2021-11-24 16:51:09] 1 07:00.0 32 0 0 0 0C 0C 0C 12.94% 416 65 mV 0 W A384 ()
[2021-11-24 16:51:09] () Gpu is still tuning.
[2021-11-24 16:51:09]
[2021-11-24 16:51:09] Stats Uptime: 0 days, 00:01:01
[2021-11-24 16:51:09] ----------------------------------------- GPU Status -------------------------------------------
[2021-11-24 16:51:09] GPU 0 [ 0C, fan 8%] ethash: 32.55Mh/s, avg 18.00Mh/s, pool 0.000 h/s a:0 r:0 hw:0
[2021-11-24 16:51:09] GPU 1 [ 0C, fan 12%] ethash: 31.67Mh/s, avg 16.61Mh/s, pool 0.000 h/s a:0 r:0 hw:0
[2021-11-24 16:51:09] Total ethash: 64.23Mh/s, avg 34.62Mh/s, pool 0.000 h/s a:0 r:0 hw:0
[2021-11-24 16:51:09] ----------------------------------------- Pool Status ------------------------------------------
[2021-11-24 16:51:09] eth.cruxpool.com ethash: 61.54Mh/s, avg 34.15Mh/s, pool 0.000 h/s a:0 r:0
[2021-11-24 16:51:09] ------------------------------------------------------------------------------------------------
[2021-11-24 16:51:14] Pool eth.cruxpool.com received new job. (job_id: d89f3ffa, diff 0.931 / 4000 MH)
[2021-11-24 16:51:19] Pool eth.cruxpool.com received new job. (job_id: 54758226, diff 0.931 / 4000 MH)
[2021-11-24 16:51:29] Pool eth.cruxpool.com received new job. (job_id: b121e2a4, diff 0.931 / 4000 MH)
[2021-11-24 16:51:31] GPU 0: detected DEAD (03:00.0), will execute restart script watchdog.sh
[2021-11-24 16:51:31] GPU 1: detected DEAD (07:00.0), will execute restart script watchdog.sh
[2021-11-24 16:51:31] Watchdog script executor thread executing script ‘watchdog.sh’ -
@Décentraliseur a dit dans Rig plante à l'ajoute d'un deuxième GPU :
@wwallace Si tu pouvais poster le contenu de
/var/log/miner/gminer/gminer.logça serait cool ! Toutes les infos sont probablement là-dedansbminer pour la forme :
Miner: bminer
Version: 16.4.9[INFO] [2021-11-24T17:15:10+01:00] Bminer: When Crypto-mining Made Fast (v16.4.9-c80288d)
[INFO] [2021-11-24T17:15:10+01:00] Watchdog has started.
[WARN] [2021-11-24T17:15:10+01:00] Failed to detect platform
[FATA] [2021-11-24T17:15:10+01:00] Failed to initialize the CUDA platform: CudaError: The driver version is too low (error 38). Bminer requires 375.26 or later to work
[WARN] [2021-11-24T17:15:10+01:00] Miner died! It will be restarted soon…
[INFO] [2021-11-24T17:15:19+01:00] Bminer: When Crypto-mining Made Fast (v16.4.9-c80288d)
[INFO] [2021-11-24T17:15:19+01:00] Watchdog has started.
[WARN] [2021-11-24T17:15:19+01:00] Failed to detect platform
[FATA] [2021-11-24T17:15:19+01:00] Failed to initialize the CUDA platform: CudaError: The driver version is too low (error 38). Bminer requires 375.26 or later to work
[WARN] [2021-11-24T17:15:19+01:00] Miner died! It will be restarted soon…
[INFO] [2021-11-24T17:15:27+01:00] Bminer: When Crypto-mining Made Fast (v16.4.9-c80288d)
[INFO] [2021-11-24T17:15:27+01:00] Watchdog has started.
[WARN] [2021-11-24T17:15:27+01:00] Failed to detect platform
[FATA] [2021-11-24T17:15:27+01:00] Failed to initialize the CUDA platform: CudaError: The driver version is too low (error 38). Bminer requires 375.26 or later to work
[WARN] [2021-11-24T17:15:27+01:00] Miner died! It will be restarted soon…
[INFO] [2021-11-24T17:15:35+01:00] Bminer: When Crypto-mining Made Fast (v16.4.9-c80288d)
[INFO] [2021-11-24T17:15:35+01:00] Watchdog has started.
[WARN] [2021-11-24T17:15:35+01:00] Failed to detect platform
[FATA] [2021-11-24T17:15:35+01:00] Failed to initialize the CUDA platform: CudaError: The driver version is too low (error 38). Bminer requires 375.26 or later to work
[WARN] [2021-11-24T17:15:35+01:00] Miner died! It will be restarted soon… -
@Décentraliseur a dit dans Rig plante à l'ajoute d'un deuxième GPU :
@wwallace Si tu pouvais poster le contenu de
/var/log/miner/gminer/gminer.logça serait cool ! Toutes les infos sont probablement là-dedansVoilà pour phénix
GPUs power: 61.0 W; 526 kH/J
Eth: New job #f8a412ad from eu.cruxpool.com:5555; diff: 4000MH
Eth speed: 32.098 MH/s, shares: 1/0/0, time: 0:01
GPUs: 1: 0.000 MH/s (1) 2: 32.098 MH/s (0)
Eth: New job #4c20263e from eu.cruxpool.com:5555; diff: 4000MH
Eth speed: 31.332 MH/s, shares: 1/0/0, time: 0:01
GPUs: 1: 0.000 MH/s (1) 2: 31.332 MH/s (0)
Eth: New job #c5af8610 from eu.cruxpool.com:5555; diff: 4000MH
Eth: New job #ba44c28a from eu.cruxpool.com:5555; diff: 4000MH
Eth speed: 32.013 MH/s, shares: 1/0/0, time: 0:01
GPUs: 1: 0.000 MH/s (1) 2: 32.013 MH/s (0)
Eth: New job #6a652a03 from eu.cruxpool.com:5555; diff: 4000MH
Eth speed: 31.439 MH/s, shares: 1/0/0, time: 0:01
GPUs: 1: 0.000 MH/s (1) 2: 31.439 MH/s (0)
Eth: New job #5b7426e2 from eu.cruxpool.com:5555; diff: 4000MH
Eth speed: 32.688 MH/s, shares: 1/0/0, time: 0:01
GPUs: 1: 0.000 MH/s (1) 2: 32.688 MH/s (0)
Eth: New job #5fa38c42 from eu.cruxpool.com:5555; diff: 4000MH
Eth: New job #7d22d22b from eu.cruxpool.com:5555; diff: 4000MH
Eth speed: 32.159 MH/s, shares: 1/0/0, time: 0:02
GPUs: 1: 0.000 MH/s (1) 2: 32.159 MH/s (0)
GPU1: 39C 12%, GPU2: 36C 45% 61W
GPUs power: 61.0 W; 527 kH/J
Eth: New job #3725ee43 from eu.cruxpool.com:5555; diff: 4000MH
Eth speed: 32.207 MH/s, shares: 1/0/0, time: 0:02
GPUs: 1: 0.000 MH/s (1) 2: 32.207 MH/s (0)
Eth: New job #45437c33 from eu.cruxpool.com:5555; diff: 4000MH
Eth speed: 32.263 MH/s, shares: 1/0/0, time: 0:02
GPUs: 1: 0.000 MH/s (1) 2: 32.263 MH/s (0)
Eth: New job #200680cd from eu.cruxpool.com:5555; diff: 4000MH
GPU1 not responding
Thread(s) not responding. Restarting.*** 0:02 *** 11/24 17:25 **************************************
Eth: Mining ETH on eu.cruxpool.com:5555 for 0:02
Eth speed: 32.307 MH/s, shares: 1/0/0, time: 0:02
GPUs: 1: 0.000 MH/s (1) 2: 32.307 MH/s (0)
Eth: Accepted shares 1 (0 stales), rejected shares 0 (0 stales)
Eth: Incorrect shares 0 (0.00%), est. stales percentage 0.00%
Eth: Maximum difficulty of found share: 8346 MH
Eth: Average speed (5 min): 40.277 MH/s
Eth: Effective speed: 29.63 MH/s; at pool: 29.63 MH/sEth: New job #36f01f53 from eu.cruxpool.com:5555; diff: 4000MH
Eth: New job #e2c13d4b from eu.cruxpool.com:5555; diff: 4000MHEth: New job #f0aecac7 from eu.cruxpool.com:5555; diff: 4000MH
Eth: New job #cc9933f6 from eu.cruxpool.com:5555; diff: 4000MH
Eth: New job #a887abf1 from eu.cruxpool.com:5555; diff: 4000MH
Eth: New job #efb46e6c from eu.cruxpool.com:5555; diff: 4000MH
Eth: New job #b889eb4c from eu.cruxpool.com:5555; diff: 4000MH
Eth: New job #16f449b0 from eu.cruxpool.com:5555; diff: 4000MH
Eth speed: 32.914 MH/s, shares: 1/0/0, time: 0:02
GPUs: 1: 0.000 MH/s (1) 2: 32.914 MH/s (0)
Eth: New job #95fc2d5c from eu.cruxpool.com:5555; diff: 4000MH
Eth speed: 32.319 MH/s, shares: 1/0/0, time: 0:02
GPUs: 1: 0.000 MH/s (1) 2: 32.319 MH/s (0)
Eth: New job #53276a97 from eu.cruxpool.com:5555; diff: 4000MH
Eth speed: 32.381 MH/s, shares: 1/0/0, time: 0:02
GPUs: 1: 0.000 MH/s (1) 2: 32.381 MH/s (0)
GPU1: 39C 12%, GPU2: 35C 49% 62W
GPUs power: 62.0 W; 522 kH/J
Eth: Incorrect ETH share from GPU2
Eth: New job #c89f51ac from eu.cruxpool.com:5555; diff: 4000MH
Eth speed: 32.343 MH/s, shares: 1/0/1, time: 0:02
GPUs: 1: 0.000 MH/s (1) 2: 32.343 MH/s (0/1)
Eth: Incorrect ETH share from GPU2
Eth: New job #6387c748 from eu.cruxpool.com:5555; diff: 4000MH
Eth speed: 32.378 MH/s, shares: 1/0/2, time: 0:02
GPUs: 1: 0.000 MH/s (1) 2: 32.378 MH/s (0/2)Sending danger with payload to http://api.hiveos.farm
Eth: New job #9aac2d1d from eu.cruxpool.com:5555; diff: 4000MH
Eth speed: 32.381 MH/s, shares: 1/0/2, time: 0:02
GPUs: 1: 0.000 MH/s (1) 2: 32.381 MH/s (0/2)
Eth: New job #f3419b3b from eu.cruxpool.com:5555; diff: 4000MH
Eth: New job #350311be from eu.cruxpool.com:5555; diff: 4000MH
Eth speed: 32.414 MH/s, shares: 1/0/2, time: 0:02
GPUs: 1: 0.000 MH/s (1) 2: 32.414 MH/s (0/2)Miner screen is running
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Je pensais qu’on aurai eu plus d’infos … Pas simple cette histoire . Ça réagi comme si l’une des cartes était mal connectée à la carte mère ou qu’elle manquait de jus
A mon niveau je n’ai rien à te suggérer
J’avais déjà eu ce genre de problème mais c’était dû à des risers défecteux ou un overclock trop important -
@Décentraliseur a dit dans Rig plante à l'ajoute d'un deuxième GPU :
Je pensais qu’on aurai eu plus d’infos … Pas simple cette histoire . Ça réagi comme si l’une des cartes était mal connectée à la carte mère ou qu’elle manquait de jus
A mon niveau je n’ai rien à te suggérer
J’avais déjà eu ce genre de problème mais c’était dû à des risers défecteux ou un overclock trop importantMerci quand même !!! Je vais continuer à chercher … si quelqu’un d’autre a une idée ?
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Alim ?
Essayer avec la carte non OC
Essayer avec un riser
J’ai pas d’autres pistes à te suggérer, désolé
Bonne chance
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Tu as alimenté correctement la carte mere? Les 6 pins sur le coté entre autre ?
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Oui, ca fait ca sur un riser ou pcie défectueux, un câble usb3 mort ou le câble d’alim du riser grillé mais pas tout a fait… Comme tu n’en as pas et les cartes fonctionnent ailleur, la cm a surement un problème… Ou alors comme bibi dit…
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as tu une photo de la façon dont tu alimentes tes gpus ?
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@El-Bibi-10 a dit dans Rig plante à l'ajoute d'un deuxième GPU :
Tu as alimenté correctement la carte mere? Les 6 pins sur le coté entre autre ?
Oui ! …
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Oui, d’après ce que vous dites je penche sur un soucis de CM, je vais acheter un riser pour essayer …
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@El-Bibi-10 @antebzh @DieuOrabaiS @Décentraliseur @waza
Bonjour à tous,J’ai un nouvel élément de réponse :
J’ai acheté des risers et j’ai une de mes deux cartes (la neuve) qui ne démarre pas sur riser mais qui démarre sur la CM.
Je me dis qu’elle doit avoir un faut contact dans son alimentation (interne) et qu’elle à besoin de puiser des watts dans la CM ce qui pourrait expliquer l’instabilité quand elles sont plusieurs mais pas quand elles sont seules ?
Vous en pensez quoi ? Ma théorie se tient ou pas du tout ? un GPU est censé démarrer du moment que son alim propre est branchée même sans être brancher à un PCI ?
Du coup là j’ai ma nouvelle carte (que je suppose avoir un soucis) branchée seule à la CM et mon ancienne sur riser et ça tient pour l’instant (ça fait 10 min mais ça n’a jamais tenu aussi longtemps)
Merci
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@wwallace Heuuu, non, je ne crois pas… Si problème d’alim sur le pcb ça n’ira pas du tout… Pour fonctionner, la carte doit pouvoir tirer du jus du port pcie ou elle est branchée et du câble d’alim spécifique pour gpu (8 pin)… Ne pas alimenter la cg ne lui fera pas compenser par le pcie, ça n’ira pas.
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@DieuOrabaiS a dit dans Rig plante à l'ajoute d'un deuxième GPU :
@wwallace Heuuu, non, je ne crois pas… Si problème d’alim sur le pcb ça n’ira pas du tout… Pour fonctionner, la carte doit pouvoir tirer du jus du port pcie ou elle est branchée et du câble d’alim spécifique pour gpu (8 pin)… Ne pas alimenter la cg ne lui fera pas compenser par le pcie, ça n’ira pas.
Bon en effet ma théorie n’était pas bonne,
J’ai refait tous mes branchement de riser et les deux fonctionnent bien. Donc tout va bien avec un branchement sur riser.
Mais qu’est ce qui expliquer que ça ne marche pas en branchement directe sur la CM ?
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@wwallace Un faux contact dans un des pcie x16 de la cm surement vu qu’en utilisant qu’une ligne pour brancher les risers ca marche…
