- Jul 20, 2017
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I recently got a 1600AF and I've been playing with it a little on a Asrock B450M Pro4.
I had a junk set of DDR4 laying around that I used for the build so I didn't have to waste money on memory. It's a patriot set 4gbx2 with Spectek (Micron) chips and is dual rank, 2133, CL15 rated @ 1.2v.
Now I have two issues here as I'm new to overclocking Ryzen. 1. I've read that the 1600AF, despite being 12nm, still uses the 1st gen memory controller that is often speed limited. 2. My RAM is $30 bargain basement ram lol
So, I've gotten the chip to 4.0GHz @ 1.25v and the memory at what I believe is stable at 2733. That's with 1.1v SOC and 1.2v DRAM. I also loosened the RAM timings to CL 17 (17-18-18-18-36). I've got no idea what these timings mean I just raised them up because CL15 wasn't stable at 2733.
Anytime I go higher I get crashes of applications in Windows or sometimes a failure to boot altogether. I've gotten into Windows at as high as 3200mhz on the RAM, but it was very sketchy with programs basically doing as they pleased.
My question now is how do I differentiate between whether it's my ram holding me back or the IMC? I've raised the DRAM voltage all the way to 1.45v and I've raised the SOC to 1.2v trying to get anything above 2733 stable and it has all failed, so I just reset everything back because I didn't want to keep pushing it.
I can continue to try to loosen the CL as well maybe all the way to CL 19 or 20? At what point does that become a losing proposition though? Is 2733 CL17 > 3200 CL20, for instance?
Thanks for any clarification.
I had a junk set of DDR4 laying around that I used for the build so I didn't have to waste money on memory. It's a patriot set 4gbx2 with Spectek (Micron) chips and is dual rank, 2133, CL15 rated @ 1.2v.
Now I have two issues here as I'm new to overclocking Ryzen. 1. I've read that the 1600AF, despite being 12nm, still uses the 1st gen memory controller that is often speed limited. 2. My RAM is $30 bargain basement ram lol
So, I've gotten the chip to 4.0GHz @ 1.25v and the memory at what I believe is stable at 2733. That's with 1.1v SOC and 1.2v DRAM. I also loosened the RAM timings to CL 17 (17-18-18-18-36). I've got no idea what these timings mean I just raised them up because CL15 wasn't stable at 2733.
Anytime I go higher I get crashes of applications in Windows or sometimes a failure to boot altogether. I've gotten into Windows at as high as 3200mhz on the RAM, but it was very sketchy with programs basically doing as they pleased.
My question now is how do I differentiate between whether it's my ram holding me back or the IMC? I've raised the DRAM voltage all the way to 1.45v and I've raised the SOC to 1.2v trying to get anything above 2733 stable and it has all failed, so I just reset everything back because I didn't want to keep pushing it.
I can continue to try to loosen the CL as well maybe all the way to CL 19 or 20? At what point does that become a losing proposition though? Is 2733 CL17 > 3200 CL20, for instance?
Thanks for any clarification.