F5F Stay Refreshed Hardware Desktop Question No display, No POST and No BIOS for second-hand motherboard?

Question No display, No POST and No BIOS for second-hand motherboard?

Question No display, No POST and No BIOS for second-hand motherboard?

C
coyote888
Posting Freak
838
10-22-2021, 03:47 AM
#1
Hi guys, I bought
a second hand Asus TUF Gaming B560-PLUS WIFI mobo
and an
i7-11700 CPU
(not F version).
The guy told me, that the computer stopped loading after he installed Windows 11 and it went to sleep (not sure if he can be trusted). I dont really feel like OS would cause BOOT/ POST failure.
Before purchasing it I thought it would be some problem with drivers and ssd or sleep mode that it has no display. RIght now I think itś more like a bios issue (idk if it had to be flashed for 11th gen - mobo says it supports both but I remember previous gens 8/9 had this problem. But if he had already 11700 working I doubt it. The other thing would be TPM?
Here is what happens:
1)
When I try to start it up unplugged everyting just necessary power on - CPU and MOBO (shorting Power pins with screwdriver) - the mobo lights up (just some lightning not LED diod for diagnostics, cant even find it to be honest. All fans start running but cpu is not heating up - not working. No Beep from the speaker as well, no posting, no display, no bios, no USB lightning up (keyaboard, mouse). It continues to run and doesnt stop, never ever (tried cca 10 mins - CPU stone cold)
2)
I use one Ram in the Bus closest to the CPU (tried all) tried combination of 2 rams (and different ddr4 rams, viper patriot rgb stripe lights up even with colour that I preset on other PC)
What I´ve already tried:
1) Reseating RAM + CPU
2) Taking out CMOS battery
3) Clear CMOS header (again screwdriver)
4) Put in NVME SSD
5) Different PSUs
6) Beeper - no BEEP, never ever bepps despite whatever I do
7) CPU cooler in optional and also main header
8) Checked some physical damage - NONE found (CPU or sockets, no pins bent or missing)
9) Tried eGPU - 1060 zotac 3 gb ( I found somewhere that 11700 can have integrated graphics not enabled .. but still I would expect some post or CPU to heat up a little over a time.
I have no idea what version bios is since i cannot enter anything, the thing that CPU is not heating up means to me that it is not even working at this state? What could it be? Do you have any ideas?
What I havent tried yet:
1) I dont have any spare 1200 MOBO or any other 1200 CPU unfortunately.
2) I didnt try to plug in 24-pin while PSU on (Last option to try to wake it but dont wanna damage both GPU or CPU or RAM of now) I find it too brutal.
Thanks for your help,
Znamik
C
coyote888
10-22-2021, 03:47 AM #1

Hi guys, I bought
a second hand Asus TUF Gaming B560-PLUS WIFI mobo
and an
i7-11700 CPU
(not F version).
The guy told me, that the computer stopped loading after he installed Windows 11 and it went to sleep (not sure if he can be trusted). I dont really feel like OS would cause BOOT/ POST failure.
Before purchasing it I thought it would be some problem with drivers and ssd or sleep mode that it has no display. RIght now I think itś more like a bios issue (idk if it had to be flashed for 11th gen - mobo says it supports both but I remember previous gens 8/9 had this problem. But if he had already 11700 working I doubt it. The other thing would be TPM?
Here is what happens:
1)
When I try to start it up unplugged everyting just necessary power on - CPU and MOBO (shorting Power pins with screwdriver) - the mobo lights up (just some lightning not LED diod for diagnostics, cant even find it to be honest. All fans start running but cpu is not heating up - not working. No Beep from the speaker as well, no posting, no display, no bios, no USB lightning up (keyaboard, mouse). It continues to run and doesnt stop, never ever (tried cca 10 mins - CPU stone cold)
2)
I use one Ram in the Bus closest to the CPU (tried all) tried combination of 2 rams (and different ddr4 rams, viper patriot rgb stripe lights up even with colour that I preset on other PC)
What I´ve already tried:
1) Reseating RAM + CPU
2) Taking out CMOS battery
3) Clear CMOS header (again screwdriver)
4) Put in NVME SSD
5) Different PSUs
6) Beeper - no BEEP, never ever bepps despite whatever I do
7) CPU cooler in optional and also main header
8) Checked some physical damage - NONE found (CPU or sockets, no pins bent or missing)
9) Tried eGPU - 1060 zotac 3 gb ( I found somewhere that 11700 can have integrated graphics not enabled .. but still I would expect some post or CPU to heat up a little over a time.
I have no idea what version bios is since i cannot enter anything, the thing that CPU is not heating up means to me that it is not even working at this state? What could it be? Do you have any ideas?
What I havent tried yet:
1) I dont have any spare 1200 MOBO or any other 1200 CPU unfortunately.
2) I didnt try to plug in 24-pin while PSU on (Last option to try to wake it but dont wanna damage both GPU or CPU or RAM of now) I find it too brutal.
Thanks for your help,
Znamik

M
megapixel74
Member
224
11-08-2021, 06:17 PM
#2
the connection method used was unclear. I checked for alternative video cables and tested different surfaces to see if it worked. The case was placed on a non-conductive material. Several times the power was turned off and then restarted, which caused the BIOS to reset. If there is no Q-LED, it's likely the BIOS is damaged. The CMOS battery appears to be correctly installed with the plus sign visible during installation. Both the 8-pin and 24-pin connectors were plugged in.
M
megapixel74
11-08-2021, 06:17 PM #2

the connection method used was unclear. I checked for alternative video cables and tested different surfaces to see if it worked. The case was placed on a non-conductive material. Several times the power was turned off and then restarted, which caused the BIOS to reset. If there is no Q-LED, it's likely the BIOS is damaged. The CMOS battery appears to be correctly installed with the plus sign visible during installation. Both the 8-pin and 24-pin connectors were plugged in.

M
MistyStars
Junior Member
29
11-08-2021, 06:54 PM
#3
Hi, I connected it through HDMI, tried to link it to a TV that works with other PCs. When testing the iGPU, I put it into the HDMI port for 1060 then in eGPU. There is also a DP port on the motherboard that I didn’t try but still doesn’t explain why the CPU seems completely unresponsive. I’m just trying this out of curiosity only on the floor.

CMOS is installed correctly and I’ve tried two CMOS units, though I can’t confirm they work properly—my PC from where I took it does. Both 8-pin and 24-pin connectors are plugged in.

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Mod Edit
(merged):
Could Asus Crashfree BIOS 3 assist somehow? I also have the motherboard CD. Still, it might be a dead CPU?
M
MistyStars
11-08-2021, 06:54 PM #3

Hi, I connected it through HDMI, tried to link it to a TV that works with other PCs. When testing the iGPU, I put it into the HDMI port for 1060 then in eGPU. There is also a DP port on the motherboard that I didn’t try but still doesn’t explain why the CPU seems completely unresponsive. I’m just trying this out of curiosity only on the floor.

CMOS is installed correctly and I’ve tried two CMOS units, though I can’t confirm they work properly—my PC from where I took it does. Both 8-pin and 24-pin connectors are plugged in.

- - - - - - - - - - - - - - - - - - - - - - - - -
Mod Edit
(merged):
Could Asus Crashfree BIOS 3 assist somehow? I also have the motherboard CD. Still, it might be a dead CPU?