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asrock 970 wont boot with 4 pieces of RAM |
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wardog 
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 Posted: 06 Dec 2015 at 1:44am |
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Na. Not the BIOS. Let's take a run past our IMC voltage.
BRB, gotta d/l and scan your MB manual. ... sec |
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wardog
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Posted: 06 Dec 2015 at 2:00am |
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BIOS > OC Tweaker | CPU NB Voltage
Bump the "CPU NB Voltage" up one step at a time, testing each time by attempting to boot. Your 6300 is rated at using two sticks at 1866. Four sticks of 8GB ea isputting a strain on the memory controller. Hence, I'm betting, why you can do four at 1600 but not higher. Give the above a shot,paying attention to your temps. You shouldn't need to go over 1.25v on the CPU NB Voltage . |
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wardog
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Posted: 06 Dec 2015 at 2:18am |
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And for your furthering knowledge of this I should point out that the CPU/NB Voltage is the voltage applied to the IMC.
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pekseg
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Posted: 06 Dec 2015 at 4:43pm |
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first I raised the voltage to 1.2V but it didn't help. Neither 1.24V (and I didn't wanted to go further)
btw I can just set even numbers (1.20,1.22,1.24 etc), so 1.25 is not an option, but imho 1.24 vs 1.25 shouldn't matter. Any other thoughts? |
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wardog
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Posted: 06 Dec 2015 at 10:22pm |
Yea. But before saying I'd like to know if all your sticks have XMP Profiles programmed on them. Look in the BIOS to tell. EDITED due to my just waking up Edited by wardog - 06 Dec 2015 at 10:38pm |
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pekseg
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Posted: 07 Dec 2015 at 4:13pm |
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Have you already seen this?
http://support.amd.com/en-us/kb-articles/Pages/ddr3memoryfrequencyguide.aspx |
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wardog
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Posted: 07 Dec 2015 at 7:11pm |
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Yes.
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pekseg
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Posted: 07 Dec 2015 at 7:38pm |
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My first prio is the stability, so I won't risk to run at any reason on 1866. So I will stay on the 1600.
But I would expect from Asrock to put a note in the manual that there is such kind of limitation in the AMD spec. I'm not saying that I wouldn't buy this once again, but I wouldn't spend extra on a 1866 RAM, if I know that it will not work. Thanks for your kind help/your time. Edited by pekseg - 07 Dec 2015 at 7:39pm |
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wardog
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Posted: 07 Dec 2015 at 9:39pm |
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If it helps, there isn't that much difference between 1600 and 1866 speed wise.
Yea. It's AMD themselves that hides that nugget of "officially' supporting 2 sticks at 1866. It can be done, and with stability, but does require some tweaking to accomplish. Your current 4 sticks of 1866, running them at 1600 should net you some decent timings as you're running them at a reduced speed. Your OS will thank you for 32GB. Regardless. Edited by wardog - 07 Dec 2015 at 9:39pm |
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PetrolHead
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Posted: 08 Dec 2015 at 7:09am |
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^This. The BIOS might show you the proper SPD values for a couple of different clock speeds when you select to set them manually, and these timings are supposed to be as official and stable as the timings for the 1866MHz speed, so using them is not really overclocking.
By the way, if you need to buy RAM in the future, it is a good idea to buy them in kits. Even if the parts have the exact same parts number or even build date, it's not 100% sure they will work together. You can almost consider yourself lucky that all four modules work together. |
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Ryzen 5 1500X, ASRock AB350M Pro4, 2x8 GB G.Skill Trident Z 3466CL16, Sapphire Pulse RX Vega56 8G HBM2, Corsair RM550x, Samsung 960 EVO SSD (NVMe) 250GB, Samsung 850 EVO SSD 500 GB, Windows 10 64-bit
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pekseg wrote: