{"id":141779,"date":"2025-08-28T11:11:54","date_gmt":"2025-08-28T09:11:55","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vozmozhnoe-povrezhdenie-cpu-amd-zen-5-pri-ispolzovanii-biblioteki-gnu-mp"},"modified":"2025-08-28T11:11:54","modified_gmt":"2025-08-28T09:11:55","slug":"vozmozhnoe-povrezhdenie-cpu-amd-zen-5-pri-ispolzovanii-biblioteki-gnu-mp","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/vozmozhnoe-povrezhdenie-cpu-amd-zen-5-pri-ispolzovanii-biblioteki-gnu-mp","title":{"rendered":"Poss\u00edvel dano ao CPU AMD Zen 5 ao usar a biblioteca GNU MP","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Os desenvolvedores da biblioteca GNU MP (GMP), que fornece fun\u00e7\u00f5es para a realiza\u00e7\u00e3o de opera\u00e7\u00f5es aritm\u00e9ticas com precis\u00e3o arbitr\u00e1ria, alertaram os usu\u00e1rios sobre um incidente de falha recorrente dos processadores da s\u00e9rie AMD Ryzen 9000 com a microarquitetura Zen 5 durante os testes de funcionamento da biblioteca. Sup\u00f5e-se que a DANOS dos processadores foi causada por superaquecimento, que ocorre durante a execu\u00e7\u00e3o intensa das fun\u00e7\u00f5es do GMP. At\u00e9 que a an\u00e1lise completa do problema seja finalizada, n\u00e3o se recomenda o uso ativo do GMP em sistemas com CPU AMD Zen 5. <\/p>\n

As preocupa\u00e7\u00f5es foram geradas pela falha recorrente do CPU AMD Ryzen 9950X (AMD Zen5 X16 4300MHz) em servidor<\/a> na infraestrutura de teste do projeto. A primeira falha ocorreu em fevereiro de 2025, ap\u00f3s a qual o processador foi substitu\u00eddo sob garantia. No final de agosto, a situa\u00e7\u00e3o se repetiu e o CPU substitu\u00eddo sob garantia, instalado em um sistema com uma fonte de alimenta\u00e7\u00e3o diferente e uma placa-m\u00e3e distinta, tamb\u00e9m deixou de funcionar com os mesmos sinais de superaquecimento (uma \u00e1rea descolorida de aproximadamente 1 cent\u00edmetro de di\u00e2metro se formou no chip).

\"Poss\u00edvel<\/center> <\/p>\n

Segundo dados preliminares, a biblioteca GMP utiliza ciclos com a instru\u00e7\u00e3o MULX de forma excessivamente intensa, resultando em um consumo de energia significativamente maior do que o declarado em sistemas com AMD Zen 5, al\u00e9m da incapacidade de compensar o aquecimento com o sistema de refrigera\u00e7\u00e3o projetado de acordo com as especifica\u00e7\u00f5es. Durante ambas as falhas, foi realizado um teste com ciclos de assembler manuais contendo apenas uma instru\u00e7\u00e3o MULX, gerando carga m\u00e1xima. <\/p>\n

Nos sistemas foram utilizadas placas-m\u00e3e Asus Prime B650M-K e Asus Prime B650M-A WIFI II, assim como fontes de alimenta\u00e7\u00e3o Corsair SF450 e Corsair RM650. Em ambas as configura\u00e7\u00f5es, foi utilizado um sistema de refrigera\u00e7\u00e3o Noctua NH-U9S, mas no primeiro caso o radiador foi posicionado ao centro, enquanto no segundo foi deslocado para o lado com maior aquecimento, conforme a recomenda\u00e7\u00e3o do fabricante. <\/p>\n

Observa-se que, no segundo caso, a pasta t\u00e9rmica foi aplicada de maneira desigual (de um lado, a camada era mais fina) e n\u00e3o se pode excluir completamente a possibilidade de que a segunda falha tenha sido causada pela instala\u00e7\u00e3o incorreta do radiador. No CPU Ryzen 9950X, foi declarado que a necessidade de dissipa\u00e7\u00e3o de calor \u00e9 de 170 W (TDP, Thermal Design Power), enquanto o sistema de resfriamento utilizado fornecia uma dissipa\u00e7\u00e3o de calor de 165 W. Os 5 W faltantes foram compensados por ventiladores adicionais no gabinete e pela baixa temperatura ambiente, que era de cerca de 20\u00b0C. Ambos os processadores falharam ap\u00f3s alguns meses de opera\u00e7\u00e3o sob alta carga. Entretanto, na infraestrutura do projeto, para outras tarefas, h\u00e1 um outro CPU que j\u00e1 est\u00e1 em uso h\u00e1 bastante tempo na mesma configura\u00e7\u00e3o e com o mesmo n\u00edvel de carga, e n\u00e3o apresenta problemas. servidor<\/a> na mesma configura\u00e7\u00e3o e com o mesmo n\u00edvel de carga, e problemas com ele n\u00e3o surgem.
\n
Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 GNU MP (GMP), \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0435\u0439 \u0444\u0443\u043d\u043a\u0446\u0438\u0438 \u0434\u043b\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0430\u0440\u0438\u0444\u043c\u0435\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0439 \u0441 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u043e\u0439 \u0442\u043e\u0447\u043d\u043e\u0441\u0442\u044c\u044e, \u043f\u0440\u0435\u0434\u0443\u043f\u0440\u0435\u0434\u0438\u043b\u0438 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 \u043e\u0431 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0435 \u0441 \u043f\u043e\u0432\u0442\u043e\u0440\u043d\u044b\u043c \u0432\u044b\u0445\u043e\u0434\u043e\u043c \u0438\u0437 \u0441\u0442\u0440\u043e\u044f \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043e\u0432 \u0441\u0435\u0440\u0438\u0438 AMD Ryzen 9000 \u043d\u0430 \u0431\u0430\u0437\u0435 \u043c\u0438\u043a\u0440\u043e\u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b Zen 5 \u0432 \u0445\u043e\u0434\u0435 \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0440\u0430\u0431\u043e\u0442\u044b \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438. \u041f\u0440\u0435\u0434\u043f\u043e\u043b\u0430\u0433\u0430\u0435\u0442\u0441\u044f, \u0447\u0442\u043e \u043f\u043e\u0432\u0440\u0435\u0436\u0434\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043e\u0432 \u0431\u044b\u043b\u043e \u0432\u044b\u0437\u0432\u0430\u043d\u043e \u043f\u0435\u0440\u0435\u0433\u0440\u0435\u0432\u043e\u043c, \u0432\u043e\u0437\u043d\u0438\u043a\u0430\u044e\u0449\u0438\u043c \u043f\u0440\u0438 \u0438\u043d\u0442\u0435\u043d\u0441\u0438\u0432\u043d\u043e\u043c \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0438 \u0444\u0443\u043d\u043a\u0446\u0438\u0439 GMP. \u0414\u043e \u0437\u0430\u0432\u0435\u0440\u0448\u0435\u043d\u0438\u044f \u043f\u043e\u043b\u043d\u043e\u0433\u043e \u0430\u043d\u0430\u043b\u0438\u0437\u0430 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":141780,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-141779","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Poss\u00edvel dano ao CPU AMD Zen 5 ao usar a biblioteca GNU MP | ProHoster","description":"Os desenvolvedores da biblioteca GNU MP 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