当有内存、硬盘变动时，每次开机ASUS Z170-A主板都提示需要按F1进行重新设置，即使在主板BIOS的设置中把F1提示关闭，依旧不行。
同时Intel Virutalization选择enable，都无法生效。
这时可能是CMOS battery failure，要更换主板上面的CR2032电池了。
直接在淘宝上购买一个新的，进行更换即可。
CMOS battery failure
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The CR2032 coin cell maintains BIOS settings when the system is off.
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If it’s weak or dead, any event that forces a power reinitialization (like detecting new hardware) can cause the firmware to revert to defaults.
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Symptom: Clock resets, BIOS settings lost, especially after unplugging power or making hardware changes.
以下是CHATGPT的全部回答：
That is absolutely not normal behavior, and it points to a problem at the firmware or CMOS level — not with the drives themselves. Let’s dissect what’s going on.
Root Cause Analysis
When you add a new SATA or NVMe device and the BIOS resets itself (losing custom settings like virtualization or boot order), it means the NVRAM (non-volatile BIOS memory) that stores configuration is being corrupted or cleared.
The main possibilities:
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CMOS battery failure
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The CR2032 coin cell maintains BIOS settings when the system is off.
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If it’s weak or dead, any event that forces a power reinitialization (like detecting new hardware) can cause the firmware to revert to defaults.
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Symptom: Clock resets, BIOS settings lost, especially after unplugging power or making hardware changes.
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BIOS bug or corruption
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The Z170-A had several early firmware versions with known instability regarding NVRAM handling and SATA device enumeration.
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Some revisions would forcibly reinitialize configuration data after hardware enumeration mismatches.
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If you’re not already on the latest stable UEFI firmware (v3802, released 2021-07-02), you should definitely update to it.
(ASUS site → Support → Z170-A → Drivers & Tools → BIOS & Firmware.)
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“ErP Ready” or “Anti-Surge” features misbehaving
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ASUS boards with ErP or Anti-Surge enabled sometimes cut standby power to NVRAM circuits during shutdown, acting as if the CMOS battery were missing.
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Solution: In BIOS, under Advanced > APM Configuration, set ErP Ready → Disabled, and under Monitor, disable Anti-Surge Support temporarily to test.
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Faulty SATA port or power rail
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A short or spike when attaching new drives (especially on marginal power supplies) can momentarily brown-out the 3.3 V/5 V standby rail that powers the CMOS/RTC subsystem.
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Check PSU health — if it’s over 5 years old or cheap, replace it.
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Step-by-Step Fix
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Replace the CMOS battery.
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CR2032 cell — costs ~$2.
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Power off, unplug PSU, remove GPU if needed, pop it out, replace.
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After replacement, enter BIOS once, reconfigure, and save.
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Update BIOS.
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Use a FAT32 USB stick.
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Enter EZ Flash utility → Update from file → Load the latest
.CAPfile from ASUS’s website.
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Disable “ErP Ready” and “Anti-Surge.”
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Advanced → APM → ErP Ready → Disabled
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Monitor → Anti-Surge → Disabled
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Save and test by connecting a new drive.
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If the settings persist, you’ve solved it.
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Optional (Advanced) Step
If the problem persists even after replacing the battery and updating firmware, do this:
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Use AFUDOS or ASUS EZ Flash with the
/CLRCFGswitch to clear and rebuild the NVRAM region.
This forces the board to rebuild its UEFI variable store from scratch — sometimes corrupted config blocks survive normal resets.
Final Thought
Your board is showing classic symptoms of either a dying CMOS battery or firmware corruption due to an old BIOS. Replace the coin cell first — that fixes 80% of these cases. Then update to BIOS 3802.
If you do both and it still resets, the motherboard’s NVRAM flash chip may be deteriorating — at which point, you’d be better off replacing the board than fighting it.
Would you like me to walk you through the BIOS update process step-by-step for your specific revision?
主板电池通常能用多久？
Good question — and one that’s often misunderstood.
A CR2032 lithium coin cell typically lasts 5 to 10 years under normal motherboard usage — but that range varies sharply depending on how the PC is used and powered.
Let’s break it down precisely:
⚙️ Technical Background
The CR2032 is a 3 V lithium manganese dioxide cell with about 220 mAh nominal capacity.
Your motherboard’s RTC (real-time clock) and NVRAM draw microamps of current when the system is powered off — typically 1–5 µA, sometimes up to 10 µA on newer boards with integrated controllers.
We can estimate:
[
\text{Battery Life} = \frac{220,\text{mAh}}{5,\mu\text{A}} \approx 5,\text{years}
]
That’s an engineering-average scenario.
🕰️ Real-World Lifespan Scenarios
| Scenario | Description | Typical Lifetime |
|---|---|---|
| PC always plugged in (ATX standby power available) | PSU keeps 5 VSB active; CMOS battery is barely used | 8–12 years |
| PC unplugged frequently (no standby power) | Battery powers CMOS every night/off-cycle | 3–5 years |
| Warm environment (>35 °C average) | Heat accelerates lithium cell degradation | 2–4 years |
| Cheap or expired battery | Off-brand, low-purity lithium | 1–3 years |
🔋 Indicators of a Weak CMOS Battery
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System clock resets after unplugging the PC.
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BIOS settings (boot order, virtualization, etc.) reset after hardware changes.
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“CMOS checksum error” or “Press F1 to continue” messages at startup.
🧠 Bottom Line
For a desktop like your ASUS Z170-A, if you:
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Built it 5–10 years ago,
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Haven’t replaced the CMOS battery since,
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And often power down or unplug completely,
then it’s overdue for replacement. A fresh brand-name CR2032 (Panasonic, Renata, Maxell) will likely last you another decade if the PC remains on standby power.
Would you like me to explain how to check whether your standby power line (5VSB) is actually active when the system is “off”? That’s a quick way to see if your board is relying on the CMOS battery more than it should.