Check all 4 RAM voltages (0,6V, 1.2V, 2.5V and 3.3V which sometimes is also a second separate 2,5V), mostly 0,6V is missing due to buck controller failure. 1.1V is strange, should be 1.2V, higher if XMP is on. 0,6V is usually generated from 1.2V, so low 1.2V might be result of too high load (failure) from the 0,6V buck controller.
Look not only for shorts, but also for buck controllers generating no voltage but having its ENABLE pin ON. Not always there are shorts, sometime just the controller is gone w/o short.

Thanks guys for your hints.

I have now received a new commercial programmer, the chinese Xgecu T48.
Tried to unprotect and reflash the chip with this commercial programmer, which also works in 4bit quad mode, but to no avail.
Here some screenshots from the process:



The chips does not allow to chage the proctection registers.
I tried to unlock also the SRL register, but it seems completely no register can be changed, whatever I do.
Also measured pin 3 /WP during programming and it is correct level, i.e. high, so the HW protection...

If the vrm controller would be programmable, it would not generate any voltage w/o having been programmed before, so it it almost for sure not programmable. Regarding the wrong voltage I would recommend to desolder the GPU chip from the board before any further diagnosis, and do the tests w/o the GPU on the board. GPU is 90% value of the card, so I would not risk its life with such high VCORE, it can go to heaven any time. Regarding the voltage I would look for some missing smd elements in the VRM chip network, probably there is some smd resistors missing, or are slightly physically demaged, and...

Hi

I have a very strange issue with the BIOS SPI chip of an ASRock B650M PRO RS motherboard.
The SPI chip is an Winbond 25Q256JWEQ model (1V8).
The motherbaord doas not POST - it lits only CPU and DRAM EZ Debug Leds, and stays that way forever.
The Flashback function of the motherbaord is also not working, despite all instructions followed correctly - I'm 100% sure of this.

I have then desoldered the chip, backupped the contents, and tried to earease the chip in order to program stock image, but the chip is locked by status registers SREG2 (TB) and SREG6...

Check the cpu and chipset clock gen's if they work. SPI clock is probably a derivate clock from cpu or pch clock. Sometimes the clockgen circuits are becoming lazy due to silicon or crystal degradation and they stop oscillating. Sometimes helps exchanging crystals, pf caps in the clock gen circuit, and finally the pch if pch silicon is degraded....

Would be good if you give some more info, eg. are all pcie slots not working same way or only one, how did it come that the pcie stopped working, what is the history of the board and vga?

Once I had a board that had such kind of issue in the main pcie slot, the reason was finally found, it was a control signal coming from chipset which was shorted inside the chipset. This happened during mounting of the GPU in the slot, probably a static discharge, which destroyed the chipset output. Reaparing was by exchanging chipset, after this board worked again.

In theory you're right, but my experience tells something else.

Did you take out the cpu for cleaning? Could be that some of the dust mixed with IPA migrated and contaminated the cpu socket pins, so there is no good contact between cpu pads and socket pins. Try to clean the socket with IPA and compressed air. A small soft painting brush can also do the job, no IPA is necessary then, do it on dry socket. But do it with brush only if you are very good in mechanical works, it is very easy to bend the pins. Move the brush only is the direction in which the pins are directed, never against.

Examine the socket if there is nothing on it, that could cover...

Hi, single missing vcore/gnd pins are no problem, you can use the board like that, only condition is the pins cannot be bent in a way, that a short with neighbour pins is possible. Regarding vcore/gnd pins they are hundreds of them in parallel, so single missing pins have no influence. Theoretically it might happen that just these pins which are missing on your socket are not connected inside the cpu, in such a case the cpu will just not work or not work correctly. But you can check this on the corresponding cpu pads with a meter before. Most probably all the vcore/gnd pads are also connected...

Without clock pch will not work. Check with scope on pin 2 of bios spi chip if there is any activity after power on signal. If not, pch does not work. It might be that pch is in reset state due to some external signal beeing in wrong state, eg. some short, but this is not likely. Most probably the pch has decided to go to heaven. 1.5V at RTCX2 is not normal at all. PCH failure is unfortunately a quite common issue. Intel PCH's are not the best quality, durability is much more worse than Intel CPU's.
Should there be an activity on spi chip, then progam the chip with a stock bios, sometime...