AMD Motherboards - RamOCvoltageCantLowerThanXMPvoltage[b350pro4 4.20]

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RamOCvoltageCantLowerThanXMPvoltage[b350pro4 4.20]

Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=6832
Printed Date: 19 Apr 2024 at 4:36pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: RamOCvoltageCantLowerThanXMPvoltage[b350pro4 4.20]

Posted By: RyuzenFX
Subject: RamOCvoltageCantLowerThanXMPvoltage[b350pro4 4.20]
Date Posted: 05 Dec 2017 at 11:43pm

" rel="nofollow - Dram OC voltage can't lower than XMP Profile default voltage [AB350 Pro4 bios 4.20]

My RAM XMP Profile voltage is 1.350v(DDR3000), but 1.210v also work fine at DDR2400/2666.

Today I update my bios and set DDR to 2666 again, but the new bios will rewrite my Dram voltage to 1.350v after system shutdown/reboot into bios.

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CPU voltage

My CPU R7 1700(65W), 3GHz base voltage is 1.1xv

but new bios use CPB voltage (1.35v?) on default bios environment w/3GHz base clock

My Power supply is 80Plus gold, why waste my power?

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I can't disable Core Performance Boost in bios? CPB will force Auto again

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~~My Power supply is 80Plus gold and zero load ready~~

~~I set "Low current Idle" at new bios option (Power supply idle control), but can't feel any effect at HWiNFO Sensor?~~

I know now, Low current Idle = Core C6?

Auto: Self-adaptive (Low current Idle or Typical current Idle)

Low current Idle: Vcore idle down to 0.4v, same as old bios

Typical current Idle: Vcore idle upto 0.8xv, same as core VID voltage

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_Dragon
Ry(u)zen 1700 / AB350 Pro4