The message appears on a PC with an Asus motherboard. It is preceded by an overload of the computer. If the problem occurs repeatedly, then its cause is clearly a power surge. This is due to the ASUS Anti-surge tool, which protects motherboard electronics from current with inappropriate parameters.
Error solution methods
To troubleshoot the problem, do the following:
- Make sure the power supply is working... It is best to do this in a service center, but those who understand the basics of electrical circuits can do it themselves. If the power supply is really defective, then replace it with a new one. It is preferable to purchase a more powerful power supply than the one used previously.
- Do not plug anything other than a computer into an outlet... It happens that other electrical devices overload the network, which is why the power supply is not able to supply a current of suitable strength and voltage to the motherboard.
- Check that the surge protector and / or uninterruptible power supply is working.
The problem goes away if you disable ASUS Anti-surge in BIOS. However, in most cases, this will only increase the likelihood that an inappropriate current will break the motherboard. Such a "solution" to the failure will be very costly and should only be used if the computer is urgently needed to solve an important problem.
Users of computers based on Asus motherboards may experience a sudden reboot of their system. After reboot, the screen displays the message “Power supply surges detected during the previous power on. ASUS Anti-surge was triggered to protect system from unstable power supply unit. " Pressing F2 the user can continue to boot his system, but after a while the computer suddenly restarts again, and the already mentioned inscription reappears on the screen... In this article I will tell you what this problem is, what are its causes, and how to fix the "Power supply surges detected during the previous power on" error on your PC.
"Power supply surges detected during the previous power on" message on the monitor screen
Translated from of English language this message looks like “A power surge was detected during the previous work. ASUS Anti-surge has been activated to protect your system from unstable power supply. ".
That is, the ASUS Anti-surge tool built into the motherboard recorded a threatening voltage surge from the power supply, and to ensure safe work the computer has shut down (rebooted) the PC.
Let me remind the reader that the “ASUS Anti-surge” tool is a special ASUS development aimed at protecting the system from power overloads. This tool is controlled through BIOS, where it can be easily turned on / off.
What reasons could lead to the mentioned power surge? I would highlight the following:
How to fix error Power supply surges detected during the previous power on
So, if you have an asus anti-surge reboot, then, first of all, I recommend to observe whether it will repeat this problem... If sudden shutdowns of the computer continue, and you see messages about the action "ASUS Anti-surge" on the screen, and there is an inscription on top, then I recommend doing the following:
If you are aware of all the risks, and decided to disable the asus anti-surge protect function, then go to "BIOS" - "Advanced Mode" - "Monitor" - "Anti Surge Support", and set this parameter to "Disabled" ...
Anti-Surge technology can be found in Asus motherboards (relatively recently).
Anti-Surge is a special ASUS development that prevents the failure of expensive devices and the motherboard in the event of power surges.
Anti-Surge is a useful thing, in my case it worked correctly and promptly notified me about the need to replace the power supply.
The computer worked for itself, it worked for almost a year and everything was in order.
One evening, he began to turn off by itself. This happens and is usually to blame for this:
1. Power supply unit;
2. Overheating of chips or processor.
This is of course if not blue screens and crashes, just a quiet shutdown.
Computer configuration:
Asus board H61M-E;
Intel processor Pentium G2130 3.2GHz;
memory bar 8GB DDR3 1600MHz;
integrated video card;
HDD 60GB Silicon Power;
Golden Field ATX-S460 power supply;
Nothing tricky - a good computer for office tasks, you can, of course, drive some toys, but this is definitely not a gaming PC.
Therefore, overheating is very unlikely. Thermal grease is standard with a boxed Intel heatsink, it lasts for a long time, there is little dust inside, since there are no extra fans and no repairs are done around
Therefore, from the usual problems - the power supply remains.
Golden Field is quite good power supplies (and cases) - they are relatively inexpensive and do not break often. Usually they work quietly, since the cooler is large with a downward position. The only thing that I did from the modifications is to lubricate it better at the factory.
Opening a new power supply and adding grease to it while it is under warranty (and the warranty is usually 1 year) is not worth it, since you will void the warranty. In this case, the power supply was not opened and the warranty remained for another 1 month.
We climb into the BIOS and see the following picture - the voltage across the 5V branch is 5.52V, and this is no longer within the permissible range, but in the red zone.
The Anti-Surge system monitors the parameters and turns off the computer!
And this is how the parameters look like on a normally working computer.
For the sake of experiment, I turn off the Anti-Surge system, the computer turns on and works fine, but this is not good. In this mode, something may fail over time.
I removed the power supply, replaced it with another, and checked this problematic one with a tester, indeed 5V was not within the normal range.
I put the power supply in the package, there is also a warranty sheet and in service center the store where this power supply was purchased. There he was twisted in his hands and accepted for service. After about 20 days, they called back and said to pick up a replacement.
The Golden Field ATX-S460 power supply has been replaced with a similar new one!
Asus Anti-Surge System Helped Prevent possible problems with a computer and allowed to use warranty obligations to replace the power supply.
On some motherboards by Asus users, when they turn on the computer again after it suddenly turns off, notice the message “Power supply surges detected during the previous power on. ASUS Anti-surge was triggered to protect system from unstable power supply unit. "".
Next, it is suggested to press the F2 button to continue booting the computer. Most likely, this message, as well as sudden shutdowns, is periodically repeated. Why this happens, what it means and what to do, you will learn in this article.
What is ASUS Anti-surge?
ASUS Anti-surge is a proprietary technology Asus, whose task is to monitor the quality of the computer's electrical power supply. If problems are found with it, then the PC is urgently turned off to prevent the possibility of failure of computer components due to poor-quality power supply.
ASUS Anti-Surge Technology Description
This can be verified by translating this message into Russian. It sounds like this: During the previous operation of the computer, a power surge was detected. ASUS Anti-surge has been activated to protect against unstable power.
Thus, we can conclude that ASUS Anti-surge is a rather useful tool that monitors the quality of your PC's power supply.
What if this message appears intermittently?
In this case, it is worth checking the quality of the connections of all wires inside system unit going from the power supply to motherboard... They should be disconnected and reconnected, at the same time checking for charring.
24 pin power connector
4 pin processor power connector
Also check if the wire going from the outlet to the system unit is not broken.
If you are using an uninterruptible power supply, then try connecting the system unit directly from the outlet, bypassing the "uninterruptible power supply".
Pay attention to whether the lights in the house are flickering when the computer is turned off and the message "power supply surges detected during the previous power on" appears.
If none of the above helped, then with a high degree of probability you can judge the need to replace or repair the power supply. At home, it can be disassembled and inspected for swollen capacitors.
Swollen capacitors on the power supply
You can also try to borrow a known working power supply from friends or acquaintances to see if it will periodically shutdown the computer and the message "power supply surges detected during the previous power on" appears.
At your own risk, you may want to disable the ASUS Anti-surge in BIOS settings... In this case, sudden trips, as well as the message "power supply surges detected during the previous power on" will disappear. But by doing so, you put the internal components of your system unit at risk, which can fail at any time due to surges or drawdowns in the supply network.
Disabling ASUS Anti-Surge Protection in BIOS
Output
If the message “Power supply surges detected during the previous power on. ASUS Anti-surge was triggered to protect system from unstable power supply unit ”does not appear often, 1-2 times in a couple of months, this may be due to strong fluctuations in the electrical network. In this case, we recommend installing an uninterruptible power supply and connecting the computer to the electrical network from it.
If the problem occurs frequently, then the cause is most often faulty unit nutrition.
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