RAM detection shows only 4GB available despite 8GB installed in dual-channel configuration.
RAM detection shows only 4GB available despite 8GB installed in dual-channel configuration.
I find it really hard to understand what's going on right now. When I installed the new Crucial stick, it was detected immediately and ran at 1333mhz in dual channel. However, the next time I reset the BIOS twice and it still worked once, then stopped after infinite resets. It feels like the same pattern happened with my original OEM RAM again, and I couldn't fix it.
It seems the issue might be with the board design itself, or your BIOS may alter timing and speeds even after startup. You could attempt setting a specific frequency in the BIOS to see if it resolves the problem.
Exactly what you’re struggling with is clear. The problem started after installing OEM RAM, and I hadn’t opened my laptop until the issue appeared. It seems to be connected to memory remapping that the BIOS doesn’t recognize, even though it knows about an external slot. The BIOS reads the memory’s details but fails to load it during startup. I’ve seen similar cases only in people who assembled their own PCs, but since it was a prebuilt machine, the BIOS should have handled the remap. It either worked for them or the RAM was faulty or the slot wasn’t present. I also thought about flashing the BIOS, but found a community that helped me obtain a custom BIOS dump. That worked too, but it was risky and I’m not confident without proper guidance. The port functions fine, RAM detection works perfectly, and games run smoothly without crashes or BSODs. I ran MemTest86 on the new RAM, and it passed without errors. The issue definitely lies with the BIOS, but I’m stuck until I can get service support nearby.
I see why you like the look and the laptop style—it's a popular Lenovo design. It seems connected to BIOS settings, like when I plugged in a new stick and it recognized it instantly. But later, when I tried to save changes, it didn’t remember it and just flagged it. In my understanding, this happened because the BIOS cached the data and then tried to detect it again, which caused the issue. Regarding frequency locking, I haven’t tried it yet. Since you already have the OEM RAM and an integrated motherboard, both ran at 2400MHz normally until now. BIOSes can sometimes get infected or behave oddly, but I’m not sure if viruses are the cause. It might be similar to a Windows problem—there’s a temporary fix, but the real solution is reinstalling Windows. As for detection, it shows up in CPU-Z and memory testing tools, yet the BIOS doesn’t recognize it as working. It appears in the SPD tab but not elsewhere, just like a damaged USB stick whose driver shows up everywhere but can’t be accessed.
IMC stands for Integrated Memory Controller, managing memory alongside the board's physical connections and controlled via the BIOS. The BIOS update process is unstable, especially with modified BIOS versions. It's safer to send the laptop for professional handling rather than attempting a blind modification and flashing yourself. Having a test board is recommended before proceeding. You might experiment with different RAM modules to see what fits, but this approach can be expensive and often ineffective. Unless you have sufficient funds, it's usually wiser to purchase a new laptop instead. The problem will likely persist unless you make direct changes, which may still lead to detection of the RAM.
exploring the bios section might reveal limitations, though it's rare I suspect a virus issue. Likely incompatibility or chip degradation is more probable. Firmware-based viruses aren't familiar to me, but a virus destroying a PC without benefit seems unlikely—unless it's purely malicious. This scenario hasn't occurred before, at least in my experience.
It's a weird bug, also nowadays I'm also facing HDD based BSODs related to Unhandled_store_exceptions most likely caused because I'm a heavy user and overload RAM regardless of whatever gaming I could do on this low end graphics card anyways and neither an HDD nor the 4gb RAM can keep up with my requirement, hence it's most definitely the time to get a new one before this dies or something similar. And also I'm broke and can't sell this thing off at good price because everyone else also having financial crisis (fruck covid), so great time to die Lenovo. I'll just have to buy a new laptop as literally until I take it to the service center, all the fixes I can try now require some sort of investment of some sort which is also pointless. Plus I already tried a new RAM and it didn't work after the first time, luckily due to covid I could return it to Amazon unlike regular times when only a replacement is possible and not refund. So, I have tried my hands with all fixes that don't break this at an unrepairable state. I definitely want to try the BIOS thing but I'll have to buy that SP1 programmer and Clip and even after that I can't be sure if that'll work so, I'll just pass on anything, and somehow tolerate this magnificent joke for some more time and then buy a new one.
For those still dealing with this problem, a suggestion from Reddit was that your RAM or port might just be slightly loose—making it readable but not functional. All I did was insert a piece of paper into the slot and push it harder; it resolved the issue. Now I’m more certain it’s a loose connection that needs to be pushed higher for proper operation.