No, incompatible RAM speed won't prevent a memory from posting properly.
No, incompatible RAM speed won't prevent a memory from posting properly.
Are there any POST LED indicators built into the motherboard?
ya know,.... it darn well says that there is a light on there somewhere, I mean a series of lights but for the life of me I can't find it. But I kind of answered my own question. I took my ram out of this PC (the one I am using now), which is CL 18 and 3600 Mh and I swapped it out with that darn oLo 2666Mhz and BOOM - I booted up to the Bios. Turns out, Asus has a pretty solid bios user interface! I like it alot. (I only used ONE 8 GB Stick) After that, I changed the advanced memory speed to 2666 and saved that setting in the bios, took my 3600 speed ram, put it back in my "maIN" rig, and now here I am writing this. Question is - will the Bios keep the changes.
Absolutely correct, I was a bit hasty earlier. Thanks for pointing it out. My idea came from realizing that certain motherboards only handle up to around 3200MHz, so using 3600MHz would definitely cause issues. Of course, RAM performance isn't strictly limited by those speeds, and JEDEC standards still apply. Apologies for the oversight.
The BIOS must recognize RAM modifications and initiate a memory reset process, erasing prior RAM settings.
Well, no dice. After saving the 2666 RAM config in the BIOS, I reinstalled the oLo 2666 RAM and tried to power her up... and again, a black screen appeared. It seems there might be an issue because 2666 isn't marked as a supported speed in the MB documentation. The only options are to turn off XMP, set the BIOS to the default RAM speed (possibly 2133), and test if it boots with that speed or wait for a better option.
i5-6600k runs smoothly at 2133mhz without needing overclocking. Expect it to work only after some adjustments. Make sure XMP is turned on. Verify RAM placement on slots A2 and B2 of the motherboard. Set auto mode and then execute AIDA64. Navigate to Motherboard > SPDE, select a stick, and capture its timing details. Don’t forget to expand the page for a complete list of timing names in order.