A newbie here.
i wanna add one more 4 ram to my old laptop, what should i buy? it is ok mixing ram?

Below is the ram(SAMSUNG M471B5273DH0-CH9) and the cpu-z detail
[attachmentid=10018754]
[attachmentid=10018756]

Heyyy guys,

Just built my PC recently; i7 12700F, B600M, 2x8GB DDR4 3600. https://forum.lowyat.net/topic/5339043

RAM is TeamGroup Delta RGB CL18-22-22-42 https://www.teamgroupinc.com/en/product/delta-rgb-ddr4

RAM chips are some unknown Microns (not sure what the ?? means in Thaiphoon)
[attachmentid=11350342]
Are these junk Microns?

Anyhow unfortunately I cannot get my RAM setup to its rated speed so here's the situation:

1. Setup XMP at Auto was okay and stable, but found out it was running at Gear 2.

2. Manually override G2 to G1 at Bios and restarted. It booted okay until about to login to Windows10 which it then crashes and restarted.

3. This happen repeatedly so I came back to Bios and manually downtune RAM speed to 3466.

4. Booted okay at G1 and stable but then found out it had downrate to CR2.

5. So then going back and manually set CR to 1T.

6. Right now it boots at 3466MHZ, Gear 1, CR1. Been stable running, passed Memtest5 with Extreme1@anta777, and Aida64 mem test.

But I would really want to get the full rated speed of 3600, so Im asking sifus here if any settings I could do to bump up the speed back to 3600 but stable for usage.

Aida64 results
[attachmentid=11350343]

Asrock timing config
[attachmentid=11350341]

Memtest5 Extreme1@anta777 passed
[attachmentid=11350344]

The weekend I tried it. Set VDD IMC (did not find VDDQ TX in my bios but their voltages are the same so I assumed thats it). Did not able to change VCCSA as it is nonK 12700F.

But unfortunately it bootlooped when just about to enter Windows and it the end my OS hard crashed. Orz

Now I'm trying to see how to save my OS from a reinstall.