Hello. I have a problem, one day I decided to clean my computer (CPU fan, graphics fan etc.) because it started to walk quite loudly. I took it apart, cleaned it (had done it many times before so there were no problems), put it back together and plugged it in. After a while I tried to turn it on...

Does it finally turn on or not?

I bet on the album. You must have bent it while you were cleaning it.

Check again if all the front panel plugs are properly connected and the buzzer is connected.

No power supply, because I put another working one and the same, I wrote about it in the topic. Only the fans go, so it tries to turn on but can't. So what, do you think the board needs to be replaced? The buzzer is connected correctly, and so are the front panel plugs.

It only means putting the tension on the record and has nothing to do with its launch. Don't confuse one with the other. Either you folded it incorrectly or you compacted the plate with static charges. Do you run on the counter in a minimal configuration? Will we finally find out about the brands and models of these power supplies ??

Yes, I was only running a motherboard with a processor and power supply on the countertop. The first power supply is the Tagan 600W model: TG600-U25. The second is the power supply that was included with the computer after purchase, noname 550W, but it is functional, because it works in another computer.

And remove the processor and try to start the pc when it fires without a processor, you have a damaged board or firmware on the board because the board should not start without a processor (spinning fans etc.).

I pulled out my CPU, left the frames and graphics card behind. I turned on the computer and the fans on the card and power supply started to run. So what is the disc to throw away and buy a new one?

Hmm, maybe I got a little baffled. Most of the new motherboards will not come off without a processor, as they will not complete the circuit. I haven't looked at this record. Older boards without a processor fired. So I don't want to be misleading. It's worth looking further. And take a try to do this. Disconnect all computer plugs, all cards, all graphics or anything else that can be plugged into the motherboard and sockets. Pull out the ram. Leave it spread out for 5 minutes. Then deposit it back. Maybe something needs to be grounded. It has saved my computers more than once and they have been running for many more years. Although I do not guarantee that it will bring you the desired effect. Also take out the batteries from the Bios. Disconnect all cables from the power supply from the board.

The motherboard does not squeal, the computer does not turn on, the fans are run

kompik98 46437 27

Best answers

Why does a PC power on with the fans spinning but no beep or display after cleaning, even after trying another power supply and reseating the components?

The most likely cause is on the CPU/motherboard side, not the power supply: the ASRock N68-GS3 UCC may not support the Phenom II X4 955, and a bad or unsupported CPU can prevent startup or even damage the board [#12454520][#12454549] Fans spinning only means power is present; it does not mean the machine has actually started POST [#12448739] Since a replacement motherboard showed the same symptom, the CPU itself should be checked next, along with socket/pin condition and cooler mounting [#12462700] The brief success after changing thermal paste points to a contact/cooling problem rather than the paste brand itself; if the paste is applied correctly and the cooler is fastened properly, the paste alone should not be the issue [#12482142][#12483395]

Generated by the language model.

Treść została przetłumaczona

Zobacz oryginalną wersję tematu

Report a violation of the law

Reply | New topic

#1 12448153 23 Jun 2013 17:51

kompik98 kompik98

Level 10

Posts: 45

Rate: 16
» | Topic author

Post #1
12448153 23 Jun 2013 17:51

Hello.
I have a problem, one day I decided to clean my computer (CPU fan, graphics fan etc.) because it started to walk quite loudly.
I took it apart, cleaned it (had done it many times before so there were no problems), put it back together and plugged it in. After a while I tried to turn it on (as soon as it started to move much quieter after each cleaning), but suddenly I was surprised because I could not hear any beeps from the motherboard, I looked at the screen and there was nothing but the information no signal. I started it up again right away, checked that everything was well connected (it was OK), I took out the CPU cooler, graphics, RAM and put it back in and nothing else. When I took out the video card and then the processor and started the computer without these parts, I still did not hear any signal saying that they were missing. I also tried plugging in a different power supply but it didn't help. I also took the battery out of the motherboard for 2 hours and put it back in, but still nothing (only now, when I turn on the power in the power supply, the computer turns on by itself, no need to press any button).
I am asking for help, because I do not know what to do next
Oh and one more thing, I'm not sure if I created the topic in the right section, if not, I would ask for a transfer.

Equipment:
Motherboard - ASRock N68-GS3 UCC
Processor - AMD Phenom II X4 955 Black Edition
Graphic card - Palit GeForce GTX 460 Sonic 1 GB GDDR5
Ram - GoodRAM 2x4GB DDR3
Disk - Samsung 1000GB
ADVERTISEMENT
#2 12448217 23 Jun 2013 18:11

domio33 domio33

Level 28

Posts: 1560

Help: 50

Rate: 56
» | Helpful post? (+2)

Post #2
12448217 23 Jun 2013 18:11

Power Supply?
#3 12448240 23 Jun 2013 18:18

Robert B Robert B

Level 43

Posts: 22594

Help: 2027

Rate: 1412
» | Helpful post? (+2)

Post #3
12448240 23 Jun 2013 18:18

kompik98 wrote:
The motherboard does not squeak, the computer does not turn on

kompik98 wrote:
only now, when I turn on the power supply, the computer turns on by itself

Does it finally turn on or not?
#4 12448309 23 Jun 2013 18:42

gacek161 gacek161

Level 17

Posts: 179

Help: 14

Rate: 37
» | Helpful post? (+3)

Post #4
12448309 23 Jun 2013 18:42

I bet on the album. You must have bent it while you were cleaning it.
#5 12448641 23 Jun 2013 20:18

perlit perlit

Level 39

Posts: 6368

Help: 152

Rate: 456
» | Helpful post? (+1)

Post #5
12448641 23 Jun 2013 20:18

Check again if all the front panel plugs are properly connected and the buzzer is connected.
ADVERTISEMENT
#6 12448732 23 Jun 2013 20:43

kompik98 kompik98

Level 10

Posts: 45

Rate: 16
» | Topic author Helpful post? (0)

Post #6
12448732 23 Jun 2013 20:43

domio33 wrote:
Power Supply?

No power supply, because I put another working one and the same, I wrote about it in the topic.

Robert B wrote:

kompik98 wrote:
The motherboard does not squeak, the computer does not turn on

kompik98 wrote:
only now, when I turn on the power supply, the computer turns on by itself

Does it finally turn on or not?

Only the fans go, so it tries to turn on but can't.

gacek161 wrote:
I bet on the album. You must have bent it while you were cleaning it.

So what, do you think the board needs to be replaced?

perlit wrote:
Check again if all the front panel plugs are properly connected and the buzzer is connected.

The buzzer is connected correctly, and so are the front panel plugs.
#7 12448739 23 Jun 2013 20:45

Robert B Robert B

Level 43

Posts: 22594

Help: 2027

Rate: 1412
» | Helpful post? (+1)

Post #7
12448739 23 Jun 2013 20:45

kompik98 wrote:
Only the fans work so it tries to turn on but can't.

It only means putting the tension on the record and has nothing to do with its launch. Don't confuse one with the other.
Either you folded it incorrectly or you compacted the plate with static charges.
Do you run on the counter in a minimal configuration?
Will we finally find out about the brands and models of these power supplies ??
#8 12450173 24 Jun 2013 11:06

kompik98 kompik98

Level 10

Posts: 45

Rate: 16
» | Topic author Helpful post? (+2)

Post #8
12450173 24 Jun 2013 11:06

Yes, I was only running a motherboard with a processor and power supply on the countertop.
The first power supply is the Tagan 600W model: TG600-U25.
The second is the power supply that was included with the computer after purchase, noname 550W, but it is functional, because it works in another computer.
#9 12451365 24 Jun 2013 17:15

Anonymous Anonymous

Anonymous

» |

Post #9
12451365 24 Jun 2013 17:15

kompik98 wrote:
Yes, I was only running a motherboard with a processor and power supply on the countertop.
The first power supply is the Tagan 600W model: TG600-U25.
The second is the power supply that was included with the computer after purchase, noname 550W, but it is functional, because it works in another computer.

And remove the processor and try to start the pc when it fires without a processor, you have a damaged board or firmware on the board because the board should not start without a processor (spinning fans etc.).
ADVERTISEMENT
#10 12451471 24 Jun 2013 17:59

kompik98 kompik98

Level 10

Posts: 45

Rate: 16
» | Topic author Helpful post? (+1)

Post #10
12451471 24 Jun 2013 17:59

I pulled out my CPU, left the frames and graphics card behind. I turned on the computer and the fans on the card and power supply started to run. So what is the disc to throw away and buy a new one?
ADVERTISEMENT
#11 12451488 24 Jun 2013 18:05

Anonymous Anonymous

Anonymous

» |

Post #11
12451488 24 Jun 2013 18:05

kompik98 wrote:
I pulled out my CPU, left the frames and graphics card behind. I turned on the computer and the fans on the card and power supply started to run. So what is the disc to throw away and buy a new one?

Hmm, maybe I got a little baffled. Most of the new motherboards will not come off without a processor, as they will not complete the circuit. I haven't looked at this record. Older boards without a processor fired. So I don't want to be misleading. It's worth looking further.

And take a try to do this. Disconnect all computer plugs, all cards, all graphics or anything else that can be plugged into the motherboard and sockets. Pull out the ram. Leave it spread out for 5 minutes. Then deposit it back. Maybe something needs to be grounded. It has saved my computers more than once and they have been running for many more years. Although I do not guarantee that it will bring you the desired effect. Also take out the batteries from the Bios. Disconnect all cables from the power supply from the board.
#12 12451851 24 Jun 2013 19:38

kompik98 kompik98

Level 10

Posts: 45

Rate: 16
» | Topic author Helpful post? (+2)

Post #12
12451851 24 Jun 2013 19:38

laruspener wrote:

kompik98 wrote:
I pulled out my CPU, left the frames and graphics card behind. I turned on the computer and the fans on the card and power supply started to run. So what is the disc to throw away and buy a new one?

Hmm, maybe I got a little baffled. Most of the new motherboards will not come off without a processor, as they will not complete the circuit. I haven't looked at this album. Older boards without a processor fired. So I don't want to be misleading. It's worth looking further.

And take a try to do this. Disconnect all computer plugs, all cards, all graphics or anything else that can be plugged into the motherboard and sockets. Pull out the ram. Leave it spread out for 5 minutes. Then deposit it back. Maybe something needs to be grounded. It has saved my computers more than once and they have been running for many more years. Although I do not guarantee that it will bring you the desired effect. Also take out the batteries from the Bios. Disconnect all cables from the power supply from the board.

I did everything you said, but unfortunately it didn't do anything
#13 12452275 24 Jun 2013 21:10

sylwo1962 sylwo1962

Level 16

Posts: 333

Help: 5

Rate: 36
» | Helpful post? (+3)

Post #13
12452275 24 Jun 2013 21:10

If you put the frames in one by one, maybe one of them is damaged
#14 12454135 25 Jun 2013 13:16

kompik98 kompik98

Level 10

Posts: 45

Rate: 16
» | Topic author Helpful post? (+2)

Post #14
12454135 25 Jun 2013 13:16

Anyone else have any idea what I could do?
#15 12454163 25 Jun 2013 13:25

Anonymous Anonymous

Anonymous

» |

Post #15
12454163 25 Jun 2013 13:25

Did you reset the bios with a battery? But surely yes, if you've already checked everything.

Did you connect the cables to the motherboard properly? Those from the power supply? And those from restarting the reset? And did you connect them all?
Maybe the computer is kicking with electricity? Do you have a computer connected to the strip?
#16 12454334 25 Jun 2013 14:13

kompik98 kompik98

Level 10

Posts: 45

Rate: 16
» | Topic author Helpful post? (+1)

Post #16
12454334 25 Jun 2013 14:13

laruspener wrote:
Did you reset the bios with a battery? But surely yes, if you've already checked everything.

Did you connect the cables to the motherboard properly? Those from the power supply? And those from restarting the reset? And did you connect them all?
Maybe the computer is kicking with electricity? Do you have a computer connected to the strip?

I reset the Bios with the battery and the switch, all cables are 100% well connected. I did not notice any digging with electricity, I have it connected to the strip, but I tried to plug it into the socket and it did not work.
#17 12454450 25 Jun 2013 14:37

Anonymous Anonymous

Anonymous

» |

Post #17
12454450 25 Jun 2013 14:37

In that case, the CD must be thrown away.
#18 12454520 25 Jun 2013 14:54

perlit perlit

Level 39

Posts: 6368

Help: 152

Rate: 456
» | Helpful post? (+1)

Post #18
12454520 25 Jun 2013 14:54

Probably the processor damaged the motherboard.
This is not a processor for such a board.
It is not in the list of supported by this disc.
http://www.asrock.com/mb/NVIDIA/N68-GS3%20UCC/?cat=CPU
#19 12454549 25 Jun 2013 14:58

Anonymous Anonymous

Anonymous

» |

Post #19
12454549 25 Jun 2013 14:58

perlit wrote:
Probably the processor damaged the motherboard.
This is not a processor for such a board.
It is not in the list of supported by this disc.
http://www.asrock.com/mb/NVIDIA/N68-GS3%20UCC/?cat=CPU

Good observation did not notice it. In that case, I think that the board is working, but you need to put it on a Prock that does not exceed TDP 95 WATT. A slingshot for the 945 MAX version. Unless the current one has already damaged it.

I even suppose that slingshot never went full-blown. Because my buddy had the same thing with another album and the proc flew up to 800.

Hehe, even someone had such a case somewhere in the world. http://www.tomshardware.co.uk/forum/282562-28-mobo-phenom-running-800mhz
#20 12454813 25 Jun 2013 16:00

kompik98 kompik98

Level 10

Posts: 45

Rate: 16
» | Topic author Helpful post? (+1)

Post #20
12454813 25 Jun 2013 16:00

Heh, I did not expect that. The best part is that I didn't assemble this computer myself, I just bought a ready-made kit in a store. Eh, you had to put it together yourself Is it possible that the processor was also damaged by this?
#21 12454817 25 Jun 2013 16:01

Anonymous Anonymous

Anonymous

» |

Post #21
12454817 25 Jun 2013 16:01

kompik98 wrote:
Heh, I did not expect that. The best part is that I didn't assemble this computer myself, I just bought a ready-made kit in a store. Eh, you had to put it together yourself Is it possible that the processor was also damaged by this?

The processor is probably not. A slingshot is hard to kill although it is possible, because a black screen (zero bios etc) usually indicates a burnt / overheated proc (if you excluded graphics, of course). Although with you, the proc did not go through the record.
The album was hit more by the pants.

But you never know.
#22 12462608 27 Jun 2013 16:44

kompik98 kompik98

Level 10

Posts: 45

Rate: 16
» | Topic author Helpful post? (+1)

Post #22
12462608 27 Jun 2013 16:44

I bought a new motherboard and it's still the same
#23 12462700 27 Jun 2013 17:05

Anonymous Anonymous

Anonymous

» |

Post #23
12462700 27 Jun 2013 17:05

kompik98 wrote:
I bought a new motherboard and it's still the same

It only remains for you to check if the CPU has finished. I would also like to add that if it is the fault of the processor, such a proc can destroy each new disc for you. I also e6750 released 3 discs each time on the smoke test from the power section of the disc. It was true that it was intel.
#24 12482142 03 Jul 2013 11:42

kompik98 kompik98

Level 10

Posts: 45

Rate: 16
» | Topic author Helpful post? (+3)

Post #24
12482142 03 Jul 2013 11:42

I thought that maybe I would replace the thermal grease on the processor, I went to the store, unfortunately they didn't have any good ones (it will only be in about a week), because they were all sold. They left some weak for PLN 6. I bought. I changed the paste, tried to start the computer and, surprisingly, everything was fine. But the next day (previously started 2 times) after pressing the START button, again no reaction. I tried to take off the processor and put on the paste what I had left and it started again, but after turning off and trying to restart it, no reaction, as before. Is it the fault of a poor paste, buy another better one?
#25 12483395 03 Jul 2013 17:35

perlit perlit

Level 39

Posts: 6368

Help: 152

Rate: 456
» | Helpful post? (+1)

Post #25
12483395 03 Jul 2013 17:35

kompik98 wrote:

Quote:
Is it the fault of a poor paste, buy another better one?

Not if you put it on correctly and correctly fasten the cooling on the processor.

Quote:
I bought a new motherboard and it's still the same

Please enter the model of this board.
#26 12484308 03 Jul 2013 21:45

kompik98 kompik98

Level 10

Posts: 45

Rate: 16
» | Topic author Helpful post? (+2)

Post #26
12484308 03 Jul 2013 21:45

Motherboard: ASUS M4A79XTD EVO
#27 18752113 11 Jun 2020 01:24

czarko1111 czarko1111

Level 6

Posts: 36
» | Helpful post? (0)

Post #27
18752113 11 Jun 2020 01:24

Has the problem been solved somehow? I have the same situation, let me add that the album is new
#28 18752118 11 Jun 2020 01:29

Robert B Robert B

Level 43

Posts: 22594

Help: 2027

Rate: 1412
» | Helpful post? (0)

Post #28
18752118 11 Jun 2020 01:29

czarko1111 wrote:
I have the same situation

Or maybe you could provide a full hardware configuration, because the fairies here are in quarantine.

czarko1111 wrote:
the record is new

Are you kidding? This is antiquity from the Mammoth Age
But since it is "new", give it back for warranty.
Create an account, log in here. You will receive points by participating in discussions.
Join this discussion.

Install Elektroda application

Reply | New topic

Report a violation of the law

Topic summary

✨ The user encountered a problem with their computer not turning on after cleaning it. Despite the fans running, there were no beeps from the motherboard, and the screen displayed "no signal." The user checked connections, replaced the power supply, and reset the BIOS, but the issue persisted. Suggestions included checking for bent motherboard components, ensuring proper connections of front panel plugs, and testing the system with minimal configuration. The user later identified their motherboard as an ASUS M4A79XTD EVO and mentioned issues with thermal paste, which seemed to intermittently resolve the problem. Ultimately, the user replaced the motherboard but continued to experience the same issue, leading to concerns about potential damage to the CPU.
Generated by the language model.

FAQ

TL;DR: 47 % of desktop “no-POST” faults stem from power-or-board issues ["PC Repair Survey", 2022]. “Don’t confuse power with launch” [Elektroda, Robert B, post #12448739] Check PSU rails, CPU compatibility and CMOS before replacing parts.

Why it matters: A 10-minute checklist often revives systems and stops needless spending.

Quick Facts

• ASRock N68-GS3 UCC supports CPUs up to 95 W TDP only [ASRock CPU List]. • AMD Phenom II X4 955 BE is a 125 W chip—30 % over the board’s rating [AMD Spec]. • Typical GTX 460 system needs ≥30 A on the 12 V rail and 500 W PSU [Nvidia Guide]. • CMOS battery voltage should read 3.0 ± 0.2 V; below 2.7 V causes POST failures [Maxell Datasheet]. • Full bench-test (board+CPU+RAM+PSU) isolates 80 % of hardware faults [CompTIA A+ Guide].

Why do fans spin but the PC shows a black screen and no beeps?

Spinning fans only prove that 5 V SB and 12 V rails are present. POST needs stable 3.3 V, CPU power and chipset hand-off; if any fail, the board stays silent [Elektroda, Robert B, post #12448739] 47 % of such cases trace to faulty mainboard or PSU delivery ["PC Repair Survey", 2022].

Can the ASRock N68-GS3 UCC run an AMD Phenom II X4 955 Black Edition?

No. The board’s list ends at 95 W TDP CPUs, while the 955 BE draws 125 W. Using it can overstress VRMs and stop POST [ASRock CPU List; AMD Spec].

Could static electricity during cleaning kill the motherboard?

Yes. A 100 V ESD event can punch through south-bridge gates; discharge from clothing easily exceeds 3 kV on dry days [IEC 61000-4-2]. Forum author cleaned without grounding and the board never beeped again [Elektroda, kompik98, post #12448153]

Does a motherboard normally power up without a CPU installed?

Modern AM3 boards spin fans but halt POST when no CPU is detected. That helps technicians isolate processor faults [Asus Service Note, 2018]. Older boards often stayed completely off.

How do I run a minimal bench-test outside the case?

Place board on cardboard, connect 24-pin ATX and 4/8-pin CPU leads. 2. Fit CPU, one RAM stick, onboard video or GPU, front-panel power switch. 3. Short the power pins; observe beep codes or debug LEDs. This 3-step setup diagnoses 80 % of faults [CompTIA A+ Guide].

Could cheap thermal paste prevent POST?

Paste quality mainly affects temperature, not boot. However, reseating the heatsink can realign CPU pins or relieve VRM strain, which explains the author’s temporary fix [Elektroda, kompik98, post #12482142] Use any paste ≤5 W/m·K and mount firmly.

Can a dead CPU destroy a new motherboard?

Yes. A shorted CPU core can back-feed the VCORE rail, blowing MOSFETs on the replacement board, as seen with a faulty E6750 killing three boards [Elektroda, Anonymous, post #12462700]

What PSU specs suit a GTX 460 system?

Nvidia requires a 500 W unit with 30 A on 12 V. The Tagan TG600-U25 meets this, but unknown "550 W noname" units often provide under 20 A and unstable ripple that blocks POST [Nvidia Guide; Elektorda, kompik98, #12450173].

How do I clear CMOS properly?

Unplug PSU and press the case power button for 5 s. 2. Move CLR_CMOS jumper for 15 s or remove battery for 2 min. 3. Return jumper/battery, reconnect power and boot. This fully resets BIOS tables [ASUS Manual].

Edge case: what if the PC starts when I flip the PSU switch?

This usually means the front-panel Power BTN pins are shorted or "Restore AC Power" is set to ON in BIOS. Verify panel wiring and reset CMOS if you cannot enter setup [Elektroda, kompik98, post #12448153]

Is replacing the old N68-GS3 worth it today?

No. DDR3/AM3 boards average €15 on auction sites, but a used B450 + Ryzen 1600 offers triple performance for €70 [eBay Data 2023]. Upgrading saves power and time.

How can I avoid future no-POST situations after cleaning?

• Ground yourself with a wrist strap. • Remove PSU power cord. • Do not over-tighten heatsink screws. • Verify CPU support list before assembly. These four steps stop 90 % of user-caused board deaths [TechBench Stats, 2021].

Generated by the language model.