计算机间歇性关机/重启。电源是否发生故障?

计算机间歇性关机/重启。电源是否发生故障?

我的桌面时不时地重新启动。我确实查看了 Windows 日志,但它们没有什么帮助。一个日志显示无法创建错误转储文件!

这是我的计算机信息:

OS Name Microsoft Windows 11 Home
Version 10.0.22621 Build 22621
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name DESKTOP-LGQFFEI
System Manufacturer ASUS
System Model System Product Name
System Type x64-based PC
System SKU SKU
Processor AMD Ryzen 9 5950X 16-Core Processor, 4001 Mhz, 16 Core(s), 32 Logical Processor(s)
BIOS Version/Date American Megatrends Inc. 2423, 8/9/2021
SMBIOS Version 3.3
Embedded Controller Version 255.255
BIOS Mode UEFI
BaseBoard Manufacturer ASUSTeK COMPUTER INC.
BaseBoard Product PRIME B550M-A (WI-FI)
BaseBoard Version Rev X.0x
Platform Role Desktop
Secure Boot State Off
PCR7 Configuration Elevation Required to View
Windows Directory C:\WINDOWS
System Directory C:\WINDOWS\system32
Boot Device \Device\HarddiskVolume2
Locale United States
Hardware Abstraction Layer Version = "10.0.22621.1413"

I watched many YouTube troubleshooting videos, One pointed me to PSU testing.

I ran a stress test using HWiNFO64 and watched the voltage using HWMonitor(motherboard)
. As soon as I start the stress test  3.3V starts dropping to values as low as 3v(and even lower to 2.95v) See below:

在此处输入图片描述

上述情况是否意味着我需要更换 PSU 了?

感谢 cyBernard 的评论,我查看了 ATX 规格:

一般来说,电源电压必须始终在标称值的 ±5% 范围内。然而,很少使用的负电源电压的容差为 ±10%。10 Hz 至 20 MHz 带宽内的纹波有以下规格:[3]

Supply (V)  Tolerance   Range, min. to max. (V) Ripple, p. to p., max. (mV)
+5  ±5% (±0.25 V)   +4.75 V to +5.25    50
−5  ±10% (±0.50 V)  −4.50 V to −5.50    50
+12 ±5% (±0.60 V)   +11.40 V to +12.60  120
−12 ±10% (±1.20 V)  −10.80 V to −13.20  120
+3.3    ±5% (±0.165 V)  +3.135 V to +3.465  50
+5 standby  ±5% (±0.25 V)   +4.75 V to +5.25    50

因此对于 3.3 伏来说,最低电压为 3.135,但我的 PSU 甚至降到了 3V 以下。

答案1

用 ASUS ROG Strix 850W PSU 替换了我的旧 PSU。

现在所有电压都非常稳定。特别是 3.3V 保持在 V3.296,从未达到 3.2V。

我运行了两个大型 VR 游戏几个小​​时,不再出现崩溃/重启。

感谢所有的评论和反馈!

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