I modified the bios on my Z170-A...
I modified the bios on my Z170-A...
Hey there, you can find my components listed in the tags—I hope. If not, here’s the key info: Mobo: Asus Z170-A RAM: 16GB single stick clocked at ~2600MHz CPU: i7-7700 BIOS version after update: 3007 GPU: 3060 The situation is as follows: I previously had an i5-6600K, then upgraded to the new i7-7700. I updated the BIOS to the latest (around 3800) and tried using it. But the PC wouldn’t boot at all—either no BIOS or secure boot only. I attempted to clear CMOS, used different RAM configurations, downgraded to a compatible BIOS version (3007), detached the SSD/HDD, but nothing resolved it. After setting up or resetting the BIOS, I encountered a black screen and had to hold the power button for a while. The CPU LED was either off or constantly red, and the machine didn’t shut down properly after hours. I’ve tested other BIOS versions (3802, 3703, 3007) without success. Any suggestions? Maybe removing the GPU could help, but then I’d lose visibility. Also, I still have the i5-6600K which boots into Windows sometimes. What should I do?
The Intel 6600K and 7700 include built-in graphics, allowing a direct connection to the motherboard rather than relying on the GPU.
If one processor is active on the board while the other isn't, it usually points to a CPU issue. To confirm the i7 7700 is functioning correctly, you can perform tests without the GPU as a valid troubleshooting method. Because the GPU is likely in the top slot, its PCIe connection directly links to the CPU. If the 7700 has a problem with that connection, it could disrupt communication with the GPU, which is also directly connected to the CPU.
The 6600k works with the latest BIOS, but the 7700 doesn't. The issue likely stems from a faulty CPU or misaligned pins. Both models include built-in graphics; connect the video cable to a motherboard port, not the GPU compartment.
Sure thing, great to hear! It seems the CPU is functioning properly since you can access it through the BIOS. Let's check the GPU next—just let me know what you find! Thanks again!
Certainly! The term you're referring to often includes letters like "GPU" or "GPU" in the name, indicating integrated graphics built into the processor.
Having access to the BIOS indicates basic functionality, though full operation isn’t guaranteed. On an older i5 650, I could enter the BIOS and even start the OS occasionally, but memory-heavy tasks would cause crashes. I suspected a hardware issue rather than a motherboard fault, thinking the CPU’s memory controller might be faulty. I decided to replace it with a cheaper i7 model, which functioned well, confirming my suspicion. The situation with my old i5 suggests the memory controller likely failed, possibly affecting the i7 7700 as well. It seems a faulty CPU could be the root cause here.
The reason for the letter F is unclear from the conversation.