You've managed a fresh installation but still can't access the BIOS to start the system?
You've managed a fresh installation but still can't access the BIOS to start the system?
We managed to boot the PC and install Windows. To display the BIOS screen, we removed all RAM except one. Once everything was set up, we powered off the machine and added the three remaining RAM sticks. The PC stopped booting again. After taking out the RAM, it worked properly. Someone knows why the other three sticks aren’t letting the system start.
Note: This configuration was part of a gaming build on the forum; compatibility should be fine otherwise any changes to that specific build would be necessary.
RAM functions properly only when purchased as a complete set. Ensure a compatible pair is placed into slots a1 and b1, and another into slots a2 and b2. Differences in version or serial numbers between kits may cause issues. If the system doesn't start, check compatibility in slots a2 and b2.
I didn't realize that. But I've assembled three PCs before this one, and never experienced any problems with the RAM. I've even combined non-matching pairs on the same machine without any RAM issues. I'll configure the RAM as you suggested and share my results. Thanks.
In general, using four modules of DDR5 isn't recommended unless you're anticipating slower memory speeds, particularly with a more affordable motherboard. Have you verified that other memory modules function properly when connected to the B2 slot? What indicator lights activate when more than just B2 is filled? Have you attempted installing only two modules—one in A2 and one in B2—ensuring they come from the same set first?
I attempted using a2 and b2 slots and noticed the lights switching between DRAM and CPU. Also, the monitor doesn't respond when I use any other slots except b2. I've tried connecting a1 and b1 with the same alternating flashing from DRAM to CPU without getting a monitor response. I'm wondering what motherboard would be better if I had the option.
This Z790 board stands out among budget options on the price range:
https://www.msi.com/Motherboard/MAG-Z790-TOMAHAWK-WIFI
It makes me suspect either the CPU or the motherboard might be the issue. Testing them without other components is challenging. I recommend checking the pads on the CPU and the pins in the socket for any visible damage. If nothing appears damaged, consider replacing the motherboard first, since CPUs generally have a low failure rate out of the box.