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NEW AM4 BIOSes as of March 6 2018
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Zapious View Drop Down
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    Posted: 11 May 2018 at 7:48am
FINALLY, No wonder I could not find "Memory throughput decreases when overclocking CPU"
(or something to that effect) on Google.
BECAUSE, this a specific bios problem and not a everyday computer problem.

Thank you so much for sticking to your convictions and not letting others convince you you're crazy
because I have been having that exact same problem since I updated from 3.20 to 4.60 a month
or so ago. (and YES I did the "bridge BIOS) 
Loosing 5000MB/s is unacceptable. I went from around 45000 to 38000-39000 when I OC.

AND YA!!! Using the Ryzen master utility workaround worked!
(Never used that before, always been bios OC for me)

I have been using, and am still  running 4.61 beta with no issues. (other than the slow memory. SOLVED)

 I don't have an OC.net account so I can't thank the poster on there but thank-you to you Handrox &
Jm62383  &  freestaler  Tongue

Edited by Zapious - 11 May 2018 at 7:52am
Asrock Taichi X370, Ryzen 1700X OC 3925, EVGA 1070FTW, 32GB Tridentz 3200 cas14, EVO 960 M.2, EVGA SN850 G3, EKWB Custom Loop
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freestaler View Drop Down
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i did send the Request to Asrock over the form. If i get some more Information, i will update this Thread. Hopefully there fix this Error soon.

Edited by freestaler - 25 Apr 2018 at 3:11am
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cristy6100 View Drop Down
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You can try sending a support ticket to them regarding this problem, you can contact them here:
Main Rig: AMD Ryzen 2400G | ASRock Fatality X370 ITX/ac UEFI 4.90 | Corsair LPX DDR4 2400@3200 1.35V | Corsair RM650i PSU | CM ML120L AiO Cooler
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freestaler View Drop Down
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Points: 71 		Post Options Post Options   Thanks (0) Thanks(0)   Quote freestaler Quote  Post ReplyReply Direct Link To This Post Posted: 24 Apr 2018 at 6:36am
The Error happen on asrock and cbs. But only on asrock mainvoards. I wont believe that it not an asrock bug.

3,95x3467 ist 24/7 stable.. for benchs only i can reach 3600cl14.

Any chance to get an answer from asrock? This bug aso happens with the cpu.


Edited by freestaler - 24 Apr 2018 at 6:38am
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cristy6100 View Drop Down
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Points: 269 		Post Options Post Options   Thanks (0) Thanks(0)   Quote cristy6100 Quote  Post ReplyReply Direct Link To This Post Posted: 24 Apr 2018 at 4:58am
Did you try overclocking by P-States to rule out ASRock or AMD out of the ecuation?
If overlocking by P-State from /Advanced/AMD CBS is working than its ASRock at fault here, if its still giving lower numbers its AMD
I would set the highest P-State to your most stable OC setting and check the bandwidth again

PS: Nice numbers you got there with 3466MHz, too bad my Corsair 2400MHz kit does not like more than 3333MHz for benchmarks elese 3200MHz for 24/7 stability :( the 2400G could use some 3466 or 3600MHz memory 


Edited by cristy6100 - 24 Apr 2018 at 5:01am
Main Rig: AMD Ryzen 2400G | ASRock Fatality X370 ITX/ac UEFI 4.90 | Corsair LPX DDR4 2400@3200 1.35V | Corsair RM650i PSU | CM ML120L AiO Cooler
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freestaler View Drop Down
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We did found at overclock.net a workaround. Dont touch any Settings for CpuMultiper in Bios (Asrock or CBS). Just change after bootup in Master Tool of AMD. 
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freestaler View Drop Down
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Points: 71 		Post Options Post Options   Thanks (1) Thanks(1)   Quote freestaler Quote  Post ReplyReply Direct Link To This Post Posted: 23 Apr 2018 at 7:52pm
Any news about this error? Someone found a solution or get answer from support? One answer was "Support say is AMD Bug not Asrock Bios fault". (in oc.net forum)
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Jm62383 View Drop Down
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Points: 87 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Jm62383 Quote  Post ReplyReply Direct Link To This Post Posted: 11 Mar 2018 at 7:43am
Tried v4.6 which was released a week before your 4.4 and no noticeable loss in bandwidth. I think its just the latest version, 4.7 , that does it.
Ryzen 1700@3.7 AB350 Gaming K4 Tridentz F4-3600C15D-16GTZ@3466
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Jm62383 View Drop Down
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Points: 87 		Post Options Post Options   Thanks (1) Thanks(1)   Quote Jm62383 Quote  Post ReplyReply Direct Link To This Post Posted: 10 Mar 2018 at 5:48pm
Ill have to compare your boards 4.4 and see what revision that would be for my ab350 and try it.
Ryzen 1700@3.7 AB350 Gaming K4 Tridentz F4-3600C15D-16GTZ@3466
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Handrox View Drop Down
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Originally posted by Jm62383 Jm62383 wrote:

Ok guys I have had time to roll back my bios to 3.00 and these new bios need some work.

I only have the aid64 trial installed so I can only see "read speed" buutttt...

P3.00
51700 read @ 3466 14-14-14-26

P4.7
41700 read @ 3466 14-14-14-26


Both had the same latency of 68 ns
By my math that's a 20% hit to memory bandwidth...not something I would see as "small"

*edit* maybe this is a stupid thought but I wonder since the newer bios are for the pinnacle ridge chips if it isnt just reserving that memory bandwidth for the onboard video even tho im not using that chip...if that makes sense.

Here I have the same problem with the transfer rates, I went back to using BIOS 4.40 which is really very good. What you talk about booking bandwidth for the IGPU for me makes a lot of sense ...
Asrock X370 Taichi + Ryzen 1700X@3.8GHz + 2x8GB GSkill TridentZ 3600MHz@3466MHz CL14 + MSi GTX 1070 Armor 2 OC
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