如果您在启动 Windows 11/10 设备时计算机无法成功启动(computer fails to boot successfully)并抛出任何BIOS 开机自检(BIOS Power-On Self-Test)( POST ) 错误代码，那么这篇文章旨在帮助您找到可以尝试的解决方案解决问题。
修复 BIOS 开机自检(Fix BIOS Power-On Self-Test)( POST ) 错误
当您遇到BIOS POST错误代码（前往Oracle.com获取POST代码及其描述的列表）时，通常伴随着一个或多个计算机哔声(single or more computer beep sound)。
如果您遇到任何POST代码错误，您可以尝试以下我们推荐的解决方案（不分先后顺序），看看这是否有助于解决问题。
- 移除新硬件
- 拔下任何磁盘或 USB 设备
- 断开外部设备
- 重新连接并检查电源线
- 识别哔声代码
- 检查风扇
- 检查电缆
- 断开所有扩展卡
- 断开所有驱动器
- 移除内存
- 重新启动计算机
- 断开并重新连接 CPU
- 检查BIOS芯片是否松动
- 清除 CMOS
- 更新 BIOS
- 更换主板、CPU、RAM、PSU
让我们看一下关于列出的每个解决方案所涉及的过程的描述。
注意(Note)：要执行大部分说明，您可能需要硬件技术人员的服务。
1]删除新硬件
如果您最近向计算机添加了新硬件，请移除该硬件以确保它不是罪魁祸首。如果您的计算机在卸下新硬件后工作正常，则可能是新硬件与您的计算机不兼容，需要更改系统设置，或者新硬件有缺陷。
2]拔下任何磁盘或USB设备
移除计算机中的所有磁盘、CD/DVD 。如果连接了任何 USB 设备（iPod、驱动器、电话等），请同时断开所有这些设备。重新启动计算机，看看是否有任何变化。
3]断开外部设备
断开(Disconnect)所有设备与台式计算机背面的连接，电源线除外。打开电脑，看看它是否正常发出哔哔声。如果计算机从未发出哔哔声，请保持显示器或显示器的连接以查看是否发生任何变化。
4]重新连接并检查电源线
如果计算机没有获得足够的电源或电源中断，您可能会遇到任何BIOS POST错误代码。从任何电源板或UPS(UPS) （不间断电源）上断开电源线 ，并将计算机直接连接到已知良好的墙壁插座，看看是否有帮助。
5]识别哔声代码
如果您收到一系列哔声，请查看不同哔声代码及其解释的列表(listing of different beep codes and their explanation)。您还可以查看主板或计算机文档以获取有关哔声代码的信息。这些哔声代码旨在帮助识别哪个计算机组件出现故障或损坏。如果未列出您的哔声代码，请继续进行故障排除。
6]检查风扇
确保(Make)所有风扇都在计算机上运行。如果风扇发生故障（尤其是CPU(CPU)的散热器风扇 ），您的计算机可能过热或检测到风扇故障，导致计算机无法启动并因此触发POST代码错误。
7]检查电缆
用力按压每根电缆，确认所有电缆都已牢固地连接到计算机，并且没有松动的电缆。确保所有磁盘驱动器都应连接有数据线和电源线。此外，您的电源应该至少有一根连接到主板的电缆。许多MOBO(MOBOs)可能还连接有额外的电缆来为风扇供电。
8]断开所有扩展卡
如果以上建议仍未解决不规则POST的问题，请断开转接板（如果适用）和每个扩展卡的连接。如果这样可以解决问题或允许计算机进行POST，请一次连接一张卡，直到您确定是哪张卡导致了问题。
9]断开所有驱动器
如果您无法通过哔声代码诊断问题（或您没有听到哔声代码），请关闭计算机。然后，从MOBO(MOBO)断开任何 IDE、 SATA、 SCSI或其他数据线 。断开它们后，尝试再次启动计算机。
如果这可以解决您的不规则POST或生成错误消息，请重新连接每个设备，直到您确定是哪个设备或电缆导致问题。
10]删除内存
如果您在移除所有上述硬件后仍然遇到同样的问题，请从主板上移除 RAM 并打开计算机。如果计算机有不同的哔声代码或没有哔声但现在是，请关闭计算机并尝试以下建议。确保(Make)在添加和移除内存之前关闭计算机，然后重新打开以查看建议是否解决了问题。
- 将内存重新插入同一插槽。
- 如果您有不止一根记忆棒，请移除除一根记忆棒之外的所有记忆棒，并尝试在每根记忆棒中旋转。
- 在每个插槽中尝试一根内存条。
如果您可以在安装了一根或多根内存条的情况下启动计算机，则您可能正在处理一些坏内存。尝试确定哪根内存条坏了并更换它。
如果您可以让内存在一个插槽中工作但不能在另一个插槽中工作，则主板可能有缺陷。您可以通过在其他正常工作的插槽中运行内存或更换主板来解决此问题。
11]重新启动计算机
在某些情况下，计算机可能会出现通常由电源或主板引起的电源相关问题。为帮助确定这是否是问题所在，请尝试尽快打开、关闭和重新打开计算机，确保计算机电源指示灯亮起和熄灭。在某些情况下，您可能会启动计算机。
12]断开(Disconnect)并重新连接CPU
您可以通过卸下CPU 并将其重新插入插槽来重新安装 CPU。您还应该在CPU(CPU)和散热器之间涂上一层新的导热膏。
13]检查BIOS芯片是否松动
如果您的主板有 BIOS芯片，随着时间的推移，它可能会因热膨胀而松动，并导致计算机发出不规则的POST。轻轻(Gently)按下BIOS芯片，确保它没有松动。
14]清除CMOS
要清除CMOS，请执行以下操作：
- 关闭所有连接到计算机的外围设备。
- 从交流电源断开电源线。
- 卸下电脑盖。
- 找到板上的电池。电池可以放在水平或垂直的电池座中，也可以通过电线连接到板载接头。
如果电池在支架中，请注意电池上 + 和 - 的方向。使用中号一字螺丝刀，轻轻地将电池从连接器中撬出。
如果电池通过电线连接到板载接头，请从板载接头断开电线。
- 等待一(Wait one)小时，然后重新连接电池。
- 重新盖上电脑盖。
- 重新插入计算机和所有设备。
启动计算机并查看是否出现POST错误。
15]将BIOS重置为默认设置
您可以将 BIOS 设置重置为其默认值，然后查看问题是否已解决。
16]更新BIOS
更新系统上的 BIOS 和 固件可能有助于解决问题。由于您无法启动到桌面，您可以通过在工作机器上创建可启动 USB 来更新 BIOS(update BIOS by creating a bootable USB)，然后使用可启动媒体启动有故障的 PC。
BIOS/firmware的手动更新后，查看问题是否已解决。
17]更换(Replace)主板，CPU，RAM，PSU
在这一点上，如果到目前为止没有任何效果，很可能是主板、电源、CPU或RAM棒坏了。在这种情况下，您需要更换这些组件或将计算机送修。您可以更换或更换另一台已知可以工作的计算机的部件。按此顺序进行替换；首先是主板，然后是RAM， CPU，最后是 PSU。
希望(Hope)这篇文章中列出的故障排除对您有所帮助！
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Fix BIOS Power-On Self-Test (POST) errors on Windows computers
If when you boot your Windows 11/10 deνice and the computer fails to boot successfully and throws any of the BIOS Power-On Self-Test (POST) error codes, then this post is intended to help you with the solution you can try to resolve the issue.
Fix BIOS Power-On Self-Test (POST) errors
When you encounter a BIOS POST error code (head over to Oracle.com for a list of POST codes and their descriptions), it’s usually accompanied by a single or more computer beep sound.
If you encounter any POST code error, you can try our recommended solutions below in no particular order and see if that helps to resolve the issue.
- Remove new hardware
- Unplug any disks or USB devices
- Disconnect external devices
- Reconnect and check power cords
- Identify beep code
- Check fans
- Check cables
- Disconnect all expansion cards
- Disconnect all drives
- Remove RAM
- Power cycle the computer
- Disconnect and reconnect the CPU
- Check if BIOS chip is loose
- Clear CMOS
- Update BIOS
- Replace motherboard, CPU, RAM, PSU
Let’s take a look at the description of the process involved concerning each of the listed solutions.
Note: To carry out most of thes instructions, you may require the services of a hardware technician.
1] Remove new hardware
If you recently added new hardware to the computer, remove that hardware to make sure it is not the culprit. If your computer works fine after removing the new hardware, then it’s either the new hardware is not compatible with your computer, a system setting needs to be changed, or the new hardware is defective.
2] Unplug any disks or USB devices
Remove all disks, CD/DVD that are in the computer. If any USB devices (iPods, drives, phones, etc.) are connected, disconnect all of them as well. Reboot the computer and see if anything changes.
3] Disconnect external devices
Disconnect all devices from the back of the desktop computer, except the power cable. Turn on the computer and see if it beeps normally. If the computer has never beeped, keep the monitor or display connected to see if any change occurs.
4] Reconnect and check power cords
If the computer is not getting enough power or the power is getting interrupted, you may encounter any of the BIOS POST error codes. Disconnect your power cables from any power strip or UPS (uninterruptible power supply) and connect the computer directly to a known good wall outlet and see if that helps.
5] Identify beep code
If you are receiving a sequence of beeps, see a listing of different beep codes and their explanation. You can also check your motherboard or computer documentation for information on the beep codes. These beep codes are meant to help identify which computer component is failing or bad. If your beep code is not listed, continue troubleshooting.
6] Check fans
Make sure all fans are running on the computer. If a fan has failed (especially the heat sink fan for the CPU), your computer could be overheating or detecting the fan failure, causing the computer not to boot and consequently trigger a POST code error.
7] Check cables
Verify all the cables are securely connected to the computer and that there are no loose cables by firmly pressing in each cable. Ensure all disk drives should have a data cable and power cable connected to them. Also, your power supply should have at least one cable going to the motherboard. Many MOBOs may also have additional cables connected to them to supply power to the fans.
8] Disconnect all expansion cards
If the above recommendations still have not resolved the irregular POST, disconnect the riser board (if applicable) and each of the expansion cards. If this fixes the problem or allows the computer to POST, connect one card at a time until you determine which card is causing the problem.
9] Disconnect all drives
If you cannot diagnose the problem by the beep code (or you do not hear a beep code), power off the computer. Then, disconnect any IDE, SATA, SCSI, or other data cables from the MOBO. After disconnecting them, try booting the computer again.
If this resolves your irregular POST or generates error messages, reconnect each device until you determine which device or cable is causing the issue.
10] Remove RAM
If you continue to experience the same problem with all the above hardware removed, remove the RAM from the motherboard and turn on the computer. If the computer has a different beep code or was not beeping but is now, turn off your computer and try the suggestions below. Make sure to turn off the computer before adding and removing the memory and then turning it back on to see if the suggestion resolves the issue.
- Re-insert the memory into the same slot.
- If you have more than one stick of memory, remove all but one stick of memory and try rotating through each stick.
- Try one stick of memory in each slot.
If you can get the computer to boot with one or more of the sticks of memory installed, you are likely dealing with some bad memory. Try to identify which stick of memory is bad and replace it.
If you can get the memory to work in one slot but not another slot, the motherboard is likely defective. You can either workaround the issue by running the memory in a different slot that does work or replace the motherboard.
11] Power cycle the computer
In some situations, a computer may have power related issues often caused by either the power supply or the motherboard. To help determine if this is the issue, try turning the computer on, off, and back on as fast as possible, making sure the computer power light goes on and off. In some situations, you may get the computer to boot.
12] Disconnect and reconnect the CPU
You can reseat the CPU by removing it and re-inserting it into the socket. You should also apply a fresh layer of thermal compound between the CPU and the heat sink.
13] Check if BIOS chip is loose
If your motherboard has a BIOS chip, it can become loose over time due to heat expansion and cause the computer to give an irregular POST. Gently press down on the BIOS chip to make sure it has not become loose.
14] Clear CMOS
To clear the CMOS, do the following:
- Turn off all peripheral devices connected to the computer.
- Disconnect the power cord from the AC power source.
- Remove the computer cover.
- Find the battery on the board. The battery may be in a horizontal or vertical battery holder, or connected to an onboard header with a wire.
If the battery is in a holder, note the orientation of the + and – on the battery. With a medium flat-blade screwdriver, gently pry the battery free from its connector.
If the battery is connected to an onboard header with a wire, disconnect the wire from the onboard header.
- Wait one hour, then reconnect the battery.
- Put the computer cover back on.
- Plug the computer and all devices back in.
Boot the computer and see if POST error occurs.
15] Reset BIOS to default settings
You can reset the BIOS setting to its default valuesand see if issue is resolved.
16] Update BIOS
Updating the BIOS and firmware on your system could help fix the issue. Since you’re unable to boot to the desktop, you can update BIOS by creating a bootable USB on a working machine and then boot the faulty PC with the bootable media.
Once you complete the manual update of the BIOS/firmware on your system, see if the issue is resolved.
17] Replace motherboard, CPU, RAM, PSU
At this point, if nothing has worked so far, it’s likely you have a case of bad motherboard, power supply, CPU, or RAM stick. In which case, you need to either replace these components or have the computer serviced. You can replace or swap in parts from another computer that is known to work. Do the replacing in this sequence; the motherboard first, then the RAM, the CPU, and finally, the PSU.
Hope you find the troubleshooting outlined in this post helpful!
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