[硬件求助] PBO的一些问题

hydrabros-avatar

hydrabros

2021-04-14T02:50:45+00:00

最近跟着-150的卷入了5600X,之前用的是zen2,一直是定频使用。现在用pbo2,BIOS AGESA 是1.2.0.2。现在pbo只能+200了嘛?,进游戏最高单核4.85G(dota2这种就是全核4.85),跑双烤只有4.65g。
Curve Optimizer 设置的是全核 Negative 20, 5600x好像都挺雷的 ,win10没进安全模式的情况下cpuz单核620分左右比默认跑的都低,全核 Negative 25到时可以660分,当然不能日常用低负载会报wh18错误,cpuz跑的这个核心我再锐龙master工具里看了是银心。如果Curve Optimizer设置每个核心收益能比全核设置高多少,没多少提升我就不折腾了,用的显卡延长线,华硕的BIOS不像军规,重置之后自动跑x16跑的pcie4.0折腾起来很麻烦。
Maxwell-avatar

Maxwell

好羡慕你们这些能+200的体质,我那颗只能+50,还不能开curve降电压。
Alice_-avatar

Alice_

新agesa最多+200了,percore收益不高,就这么用就行了。
hydrabros-avatar

hydrabros

看来就不折腾了
Universal-avatar

Universal

[quote][tid=26433705]Topic[/tid] Post by [uid=1768656]dyxdyxyy[/uid] (2021-04-22 10:58):

最近跟着-150的卷入了5600X,之前用的是zen2,一直是定频使用。现在用pbo2,BIOS AGESA 是1.2.0.2。现在pbo只能+200了嘛?,进游戏最高单核4.85G(dota2这种就是全核4.85),跑双烤只有4.65g。
Curve Optimizer 设置的是全核 Negative 20, 5600x好像都挺雷的 ,win10没进安全模式的情况下cpuz单核620分左右比默认跑的都低,全核 Negative 25到时可以660分,当然不能日常用低负载会报[/quote]从Agesa1.1.9.1开始农企上了硬锁上限+200,另外你这分数远远低于正常数据~~~4.85G PBO/3600内存的5600X单线程应该在675±3的样子,如果遇上CORE0是金星核心的话,685都有戏,你这明显是PBO调试有问题,试试手调PBO各项参数,最后~~~5600X不可能稳住all core negative 25
Lemonandlime-avatar

Lemonandlime

我的5600x PBO2 +200 NEG20,可以日常用,都没问题,CPUZ分数见过最高的是677.1,然后内存频率调到4133,FCLK2066
然而,这种情况下,玩WOW,会在低负载的时候,打本出来到主城或是刚飞到奥利波斯,或是打本途中没怪跑路的似乎后,突然掉线,啥也不管继续上游戏的话,第二次也是掉游戏,第三次就可能黑屏重启了
估计是个别核心低负载,电压不够,就过不去了。
现在内存还是4133频率,没网上调,我调过一次4400,直接黑屏起不来,抠的主板电池
然后CPU现在就是+200,其他自动
我觉得5600x的ALL core,体制差异太大。加压也不如交给auto
这样的设置后,CPUZ分数单核在663左右,多核心在5000左右,单核也就比最高的时候2%-3.5%,然后玩WOW从此再也没掉线过
hydrabros-avatar

hydrabros

[quote][pid=509972497,26433705,1]Reply[/pid] Post by [uid=40373086]Eastman911[/uid] (2021-04-22 11:54):
我的5600x PBO2 +200 NEG20,可以日常用,都没问题,CPUZ分数见过最高的是677.1,然后内存频率调到4133,FCLK2066
然而,这种情况下,玩WOW,会在低负载的......[/quote]我fclk最多1900高了就报wh19。
pbo设置再学习下,实在不行就auto算了
Hazel1211-avatar

Hazel1211

除非你是分体水冷+大雕U,否则都应该优先拉curve,不要无脑拉200频率
PBO对温度特别敏感,你频率上限给到5G,也不是给你一直boost到5G,只有温度够低时才会给你持续boost到高频率,才有高性能
哪怕你所有参数都不变,就直接把风扇、水泵转速拉满提升散热性能,跑分都会有显著提升
curve拉的越低,跑相同频率电压越低,发热量越小,同理散热不变情况下curve越低,越能在同样的温度跑出更高的平均boost频率
散热条件不足以支撑持续的高boost,你频率上限拉的再高也跑不上去,性能提升约等于0
如果为了拉高频率上限,导致要减少curve参数,那性能只会倒退

另外EDC和scalar也不要无脑拉高
EDC太低性能受限,EDC太高产生无用的热量同样会导致性能下降,其它参数不变的情况下只改变EDC数值,用CINEBENCH跑分测试,找一个合适的值(根据不同的U和散热,通常在100-170范围)
scalar本质上是boost时加压稳定频率,对性能有一点点提升但是会影响芯片寿命,不推荐长期拉高(批评一下很多无脑拉10X的PBO攻略),就在1X-4X之间对比跑分,选一个合适的值即可,超过4X长期使用是作死
Kalok-avatar

Kalok

[quote][pid=509987093,26433705,1]Reply[/pid] Post by [uid=18493530]ApocalypseReborn[/uid] (2021-04-22 12:45):

除非你是分体水冷+大雕U,否则都应该优先拉curve,不要无脑拉200频率
PBO对温度特别敏感,你频率上限给到5G,也不是给你一直boost到5G,只有温度够低时才会给你持续boost到高频率,才有高性能
哪怕你所有参数都不变,就直接把风扇、水泵转速拉满提升散热性能,跑分都会有显著提升
curve拉的越低,跑相同频率电压越低,发热量越小,同理散热不变情况下curve越低,越能在同样的温度跑出更高的平均boost频率
散热条件不足以支撑持续的高boost,你频率上限拉的再高也跑不上去,性能提升约[/quote]10x为啥会损耗cpu寿命,因为加的电压太高吗?怎么看电压,5600x电压多少以下比较合适?
Hazel1211-avatar

Hazel1211

[quote][pid=510000445,26433705,1]Reply[/pid] Post by [uid=42289865]sjwyzs[/uid] (2021-04-22 13:34):

10x为啥会损耗cpu寿命,因为加的电压太高吗?怎么看电压,5600x电压多少以下比较合适?[/quote]来自The Stilt的说法(一个和AMD、华硕官方合作的大佬)

[quote]“FIT” as the name suggest is a feature to monitor / track the fitness of the silicon and adjust the operating parameters to maintain the specified and expected reliability. Many semiconductor manufacturers utilize such feature to eke out every last bit of performance, in an ERA where most of the semiconductors are process bound in terms of performance. In short: FIT feature allows the manufacturers to push their designs to the very limit out of the box, without jeopardizing the reliability of the silicon. A practical example would be the knock sensors on an engine. The control unit of the engine always tries to advance the ignition timing as much as possible, to produce the best possible power / torque figures. The purpose of the knock sensors is to listen if knocking occurs and tell the ECU to reduce the timing advance when it does, in order to protect the engine. To see what the actual maximum voltage FIT allows the CPU to run at in various different scenarios is, I disabled all of the other limiters and safe guards. With every other limiter / safe guard disabled, the reliability (FIT) becomes the only restrain. The voltage command which the CPU sends to the VRM regulator via the SVI2 interface and the actual effective voltage were then recorded in various scenarios. In stock configuration the sustained maximum effective voltage during all-core stress allowed by FIT was =< 1.330V. Meanwhile, in single core workloads the sustained maximum was =< 1.425V. When the “FIT” parameters were adjusted by increasing the scalar value from the default 1x to the maximum allowed value of 10x, the maximum all-core voltage became 1.380V, while the maximum single core voltage increased to 1.480V. The recorded figures appear to fall very well in line with the seen and known behavior, frequency, power and thermal scaling wise.
The seen behavior suggests that the full silicon reliability can be maintained up to around 1.330V in all-core workloads (i.e. high current) and up to 1.425V in single core workloads (i.e. low current). Use of higher voltages is definitely possible (as FIT will allow up to 1.380V / 1.480V when scalar is increased by 10x), but it more than likely results in reduced silicon lifetime / reliability. By how much? Only the good folks at AMD who have access to the simulation data will know for sure.[/quote][url]https://forums.anandtech.com/threads/ryzen-strictly-technical.2500572/page-72#post-39391302[/url]

[quote]A suggestion: In some cases, the results can be improved even further, by increasing the "Precision Boost Overdrive Scalar" value from the default 1x setting. This option directly affects the silicon reliability and because of that, it should be only increased from the stock if the performance improvements justify it (which they frankly, seldom do). Personally, I would never increase it to higher than 4x. The current level can be checked with HWiNFO (Central Processors >> CPU PBO Scalar (Reliability Reduction)).[/quote][url]https://www.overclock.net/threads/asus-rog-x570-crosshair-viii-overclocking-discussion-thread.1728796/page-145#post-28627007[/url]

PBO的电压管理是自动的,瞬时上限在1.5V,但是单核/多核负载时的持续电压不会那么高,默认1.425v/1.33v,scalar拉到10x会提高到1.48v/1.38v
mother-avatar

mother

Reply to [pid=510010425,26433705,1]Reply[/pid] Post by [uid=18493530]ApocalypseReborn[/uid] (2021-04-22 14:11)
EDC和scalar最佳的需要设置多少
sextus.pompey-avatar

sextus.pompey

1.325v 4.7g定频,内存3600c就可以了。游戏和pbo没什么差别,温度还低一些。
Hazel1211-avatar

Hazel1211

[quote][pid=510064755,26433705,1]Reply[/pid] Post by [uid=62964565]S1用户[/uid] (2021-04-22 17:26):

EDC和scalar最佳的需要设置多少[/quote]先把bios更新到agesa 1.2.0.1或以上,避免L3减半bug
EDC只能自己试,因为每台机器的CPU、散热性能、其他参数设置不同,没有一定的说法
就是记录一下不同EDC数值下跑分的区别
EDC很低时跑分也会很低(比如5600X 60以下,5900X 120以下时,这比默认值低)
随着EDC从低到高调整,跑分会先提高,到一定程度后再提高EDC,跑分的提升会越来越小,直到没有提升,再到性能下降
一般把EDC设置到再往上加数值,跑分提升已经很小的点就可以了,算是性能和温度比较好的平衡点

scalar我反正直接auto(1X),没必要为了抠这点性能加电压
Kalok-avatar

Kalok

[quote][pid=510074784,26433705,1]Reply[/pid] Post by [uid=18493530]ApocalypseReborn[/uid] (2021-04-22 18:05):

先把bios更新到agesa 1.2.0.1或以上,避免L3减半bug
EDC只能自己试,因为每台机器的CPU、散热性能、其他参数设置不同,没有一定的说法
就是记录一下不同EDC数值下跑分的区别
EDC很低时跑分也会很低(比如5600X 60以下,5900X 120以下时,这比默认值低)
随着EDC从低到高调整,跑分会先提高,到一定程度后再提高EDC,跑分的提升会越来越小,直到没有提升,再到性能下降
一般把EDC设置到再往上加数值,跑分提升已经很小的点就可以了,算是性能和温度比较好的平衡点

s[/quote]我从10x调到1x了,发现单核性能没变,多核从5280降低到5260,这个选项对性能提升真的没啥影响。
大佬,再问一下,那个CPU load line calibration调到level 2 ,CPU current capability 调到120会有影响吗?
Hazel1211-avatar

Hazel1211

[quote][pid=510098114,26433705,1]Reply[/pid] Post by [uid=42289865]sjwyzs[/uid] (2021-04-22 19:40):

我从10x调到1x了,发现单核性能没变,多核从5280降低到5260,这个选项对性能提升真的没啥影响。
大佬,再问一下,那个CPU load line calibration调到level 2 ,CPU current capability 调到120会有影响吗?[/quote]current capability这个应该调不调都没影响,因为电流是被EDC限制的
LLC的话,这个我也不确定,前两天我还在发帖问,也没查到比较权威的LLC和PBO关系的资料
Kalok-avatar

Kalok

[quote][pid=510108123,26433705,1]Reply[/pid] Post by [uid=18493530]ApocalypseReborn[/uid] (2021-04-22 20:26):

current capability这个应该调不调都没影响,因为电流是被EDC限制的
LLC的话,这个我也不确定,前两天我还在发帖问,也没查到比较权威的LLC和PBO关系的资料[/quote]谢谢大佬解答ξ( ?>??)
hydrabros-avatar

hydrabros

把fmax关了,全核心neg18,scalar auto。单核CPUz跑分倒是恢复到660_670左右。pbo的三墙设置和每个核心摸neg等后面有时间再弄,感觉还有些提升空间。华硕的板子防掉压一般开几级
大傑包夫-avatar

大傑包夫

[quote][pid=510074784,26433705,1]Reply[/pid] Post by [uid=18493530]ApocalypseReborn[/uid] (2021-04-22 18:05):

先把bios更新到agesa 1.2.0.1或以上,避免L3减半bug
EDC只能自己试,因为每台机器的CPU、散热性能、其他参数设置不同,没有一定的说法
就是记录一下不同EDC数值下跑分的区别
EDC很低时跑分也会很低(比如5600X 60以下,5900X 120以下时,这比默认值低)
随着EDC从低到高调整,跑分会先提高,到一定程度后再提高EDC,跑分的提升会越来越小,直到没有提升,再到性能下降
一般把EDC设置到再往上加数值,跑分提升已经很小的点就可以了,算是性能和温度比较好的平衡点

s[/quote]为啥我重炮手更新到最新bios,5600X全默认下L3还是只有400多,试了两版bios了,都还是这样[s:ac:喷]
sextus.pompey-avatar

sextus.pompey

刷最新bios,1.325 4.7g锁频 安逸舒服无烦恼
𝐌𝐞𝐢𝐊𝐚𝐂𝐡𝐢𝐳🌟-avatar

𝐌𝐞𝐢𝐊𝐚𝐂𝐡𝐢𝐳🌟

[quote][pid=510457243,26433705,1]Reply[/pid] Post by [uid=7376246]soullwk[/uid] (2021-04-24 08:53):

为啥我重炮手更新到最新bios,5600X全默认下L3还是只有400多,试了两版bios了,都还是这样[s:ac:喷][/quote]改一下edc,改成disable 会变成500左右,改成280会恢复正常。现在的2003bios全默认就是450多,俺也一样[s:ac:哭笑]