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identity=mailfrom; envelope-from="miller@hamnavoe.com"; helo=haggis.mythic-beasts.com; client-ip=46.235.224.141 Received: from haggis.mythic-beasts.com (haggis.mythic-beasts.com [46.235.224.141]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by tb-mx0.topicbox.com (Postfix) with ESMTPS for <9fans@9fans.net>; Sat, 14 Nov 2020 04:35:19 -0500 (EST) (envelope-from miller@hamnavoe.com) Received: from [88.97.27.83] (port=43425 helo=hamnavoe.com) by haggis.mythic-beasts.com with esmtpsa (TLS1.0:RSA_AES_256_CBC_SHA1:256) (Exim 4.92.3) (envelope-from ) id 1kdrxm-0007JT-Fs for 9fans@9fans.net; Sat, 14 Nov 2020 09:35:18 +0000 Message-ID: To: 9fans@9fans.net Subject: Re: [9fans] Raspberry Pi 4 stability dependent in RAM From: Richard Miller <9fans@hamnavoe.com> Date: Sat, 14 Nov 2020 09:35:16 +0000 In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-BlackCat-Spam-Score: 1 Topicbox-Policy-Reasoning: allow: sender is a member Topicbox-Message-UUID: b9dce762-265c-11eb-963d-b00ef87f469c Archived-At: =?UTF-8?B?PGh0dHBzOi8vOWZhbnMudG9waWNib3guY29tL2dyb3Vwcy85?= =?UTF-8?B?ZmFucy9UZTkxMzc3MjIzNDUzYjhjMC1NZGEwODBhNzE2MzdmOTE5N2NmOTM0?= =?UTF-8?B?MGNhPg==?= List-Help: List-Id: "9fans" <9fans.9fans.net> List-Post: List-Software: Topicbox v0 List-Subscribe: Precedence: list Reply-To: 9fans <9fans@9fans.net> List-Unsubscribe: , Topicbox-Delivery-ID: 2:9fans:437d30aa-c441-11e9-8a57-d036212d11b0:522be890-2105-11eb-b15e-8d699134e1fa:Mda080a71637f9197cf9340ca:1:fj6UN-6CfbUhvjPVquJ5mzj0tPDuOjBpjn-7iTKeKA4 > reboots after a while, seemingly spontaneously The pi4 is very sensitive to power supply voltage. Are you using an "official" pi4 power supply (5.2v)? I had to go through several power supplies for my pi4 cluster until I found one which would keep them stable (40W Anker PowerPort 5). ------------------------------------------ 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/Te91377223453b8c0-Mda080= a71637f9197cf9340ca Delivery options: https://9fans.topicbox.com/groups/9fans/subscription