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 Posted: Wed, 25th Nov 2020 12:46 Post subject: |
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AMD adds Adaptive undervolting PBO option for Ryzen 5000 processors
AMD presents a dynamic undervolt option for the Ryzen 5000 processors. Precision Boost Overdrive 2 is based on existing PBO and can bring performance gains in single and light multithreaded workloads. AMD AGESA 1.1.8.0 with Curve Optimizer available in December
The central change is an upgraded Precision Boost Overdrive 2 that brings is a Curve Optimizer (voltage/frequency curve) to Ryzen 5000 processors.
The PBO adaptive algorithm will choose certain values based on the chip. The new Curve Optimization feature automatically adjusts the voltage up or down depending on whether the processor has much or little to do. Instead of predefined fixed values, you now indicate how many steps from 3 to 5 mV are taken, up to about 30 steps. This provides a dynamic range between which the software chooses the optimal value, based on data from on-chip sensors. It was not possible to undervolt with a Ryzen 5000 processor, unlike with older AMD processors. In succession with intelligent boost algorithms, which are given more leeway at lower consumption and lower temperatures, this sometimes permits higher performance than increasing the voltage. However, the result varies from processor to processor, just like with overclocking. Precision Boost Overdrive 2 requires a Ryzen 5000 processor, 400 or 500 series motherboard and a bios based on agesa 1.1.8.0 or later. Ryzen Master will not support the new possibilities until the new year 2021.
sause: https://www.guru3d.com/news-story/amd-adds-dynamic-undervolting-option-for-ryzen-5000-processors.html
nice!
| Lutzifer wrote: | | and yes, mine is only average |
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| Posted: Wed, 25th Nov 2020 18:54 Post subject: |
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Is this a microcode update?
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couleur
[Moderator] Janitor
Posts: 14330
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| Posted: Wed, 25th Nov 2020 19:17 Post subject: |
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| VGAdeadcafe wrote: | | Is this a microcode update? |
No, this is Patrick!
 Spoiler: | But yes, it seems to be a microcode update. |
"Enlightenment is man's emergence from his self-imposed nonage. Nonage is the inability to use one's own understanding without another's guidance. This nonage is self-imposed if its cause lies not in lack of understanding but in indecision and lack of courage to use one's own mind without another's guidance. Dare to know! (Sapere aude.) "Have the courage to use your own understanding," is therefore the motto of the enlightenment."
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| Posted: Fri, 27th Nov 2020 17:01 Post subject: |
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 vs 
me vs another 5950x bought from the same shop/day
both on air and 4 sticks
both without OC
wtf 
| Lutzifer wrote: | | and yes, mine is only average |
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LeoNatan
☢ NFOHump Despot ☢
Posts: 73196
Location: Ramat Gan, Israel 🇮🇱
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| Posted: Fri, 27th Nov 2020 18:00 Post subject: |
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| StrEagle wrote: | | wtf |
What seems to be giving you a pause? 
My results:
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tonizito
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Location: Portugal, the shithole of Europe.
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| Posted: Sat, 28th Nov 2020 19:03 Post subject: |
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There is a very good chance it'll work fine. Those ram compatibility lists are never definitive.
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tonizito
VIP Member
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Location: Portugal, the shithole of Europe.
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| Posted: Sat, 28th Nov 2020 19:29 Post subject: |
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| Silent_Lurker wrote: | Now I understand why I got them for 100€ less than anywhere else  |
...exactly
| boundle (thoughts on cracking AITD) wrote: | | i guess thouth if without a legit key the installation was rolling back we are all fucking then |
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| Posted: Tue, 1st Dec 2020 12:42 Post subject: |
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| LeoNatan wrote: | | StrEagle wrote: | | wtf |
What seems to be giving you a pause?
... |
There is up to 10% difference in his benefit in cache speeds
and RAM speed is slightly higher, with slower ram
| Lutzifer wrote: | | and yes, mine is only average |
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| Posted: Tue, 1st Dec 2020 13:34 Post subject: |
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Im currently running my memory at 3733 (SAFE) settings from dram calculator and IF is set to 1866mhz, getting 57260mb/s read and 59.9ns latency (using trial so cant see all, but seems to be good enough now).
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| Posted: Mon, 7th Dec 2020 16:01 Post subject: |
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Sounds like you have dead pump or user error in installation, i cannot get those temps with my NH-D15 that has single fan on 5900X.
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| Posted: Mon, 7th Dec 2020 17:41 Post subject: |
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Last edited by Yondaime on Mon, 2nd Dec 2024 15:30; edited 1 time in total
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| Posted: Mon, 7th Dec 2020 17:56 Post subject: |
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Both are IPS, IPS is a kind of screen technology for LCD monitors.
Looking at the URL you provided for the tirst laptop, it doesn't seem to have an RX Vega 5, or at least doesn't specify it (just says AMD Radeon for graphics).
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| Posted: Mon, 7th Dec 2020 18:12 Post subject: |
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Last edited by Yondaime on Mon, 2nd Dec 2024 15:30; edited 1 time in total
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Grale
Banned
Posts: 3321
Location: Invert
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| Posted: Tue, 8th Dec 2020 22:38 Post subject: |
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Is it normal for a 3600X to fluctuate when idle. Meaning while browsing and just general use.
Coming from intel this is my first amd chip. I can hear the CPU fan ramping up and down pretty much constantly.
Running a Liquid Freezer II 240. Also since changing from intel the same cooler has developed a whining noise every 10 seconds, perhaps in line with the increase in fan speed.
Temps range from 35 - 50 while idle.
The constant changing fan noise is driving me nuts!
MSI X570 Tomahawk |Corsair Vengeance LPX 32gb 3600mhz | Ryzen 5800X3D | EKWB Watercooling | Seasonic Focus GX 850 Gold PSU | 4090 Founders | Predator X34P UW curved monitor | Window Pro 10 x64
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_SiN_
Megatron
Posts: 12108
Location: Cybertron
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| Posted: Wed, 9th Dec 2020 10:25 Post subject: |
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Yes it's normal/working as intended. You need to set a custom fan curve in BIOS/whatever software you use. I had the same thing with my 3900X and same with the 5950X. But a custom fan curve fixes that, Way quieter in pretty much every scenario, and no more fans ramping up and down all the time.
Watercooled 5950X | AORUS Master X570 | Asus RTX 3090 TUF Gaming OC | 64Gb RAM | 1Tb 970 Evo Plus + 2Tb 660p | etc etc
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tonizito
VIP Member
Posts: 51400
Location: Portugal, the shithole of Europe.
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| Posted: Wed, 9th Dec 2020 10:51 Post subject: |
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| Yondaime wrote: | Hi guys, a relative wants a new laptop for light gaming...
So naturally I went searching, and naturally I fucking hate searching good value with laptops.
But any who, I found this one:
Acer Aspire 5 A515-44 (NX.HW4ED.006)
https://www.acer.com/ac/sv/SE/content/model/NX.HW4ED.006
For only 6 490,00 SEK (which translates to €637,72). Her limit is 7 000 SEK (€687,55).
Which to me sounds a bit too good to be true considering it has:
15.6" (LCD) screen
Ryzen 3 4300U
1 tb SSD
8 gb ram (downside but pretty par for the course of this budget)
In the specs it doesn't say the GPU is RX Vega 5, only "Graphics Controller Model: Radeon™"...
But all the other laptops with Ryzen 3 4300U has RX Vega 5.
So my question to you folks who know how to navigate the hellscape that is Laptops (and is familiar with Ryzen), can I assume that this one has RX Vega 5?
And am I right that it's good value?
Comparatively I found this one which has the same CPU (and the same integrated RX Vega 5 GPU if I'm not misunderstand the above laptop) but is worse in all the other ways?:
Acer Swift 3 SF314-42 (NX.HSEED.0020)
6 995 SEK ( €687,18 )
But has only a 14" screen (but IPS) and 256 gb SSD
Is there something I'm missing here? The first one (Acer Aspire 5 A515-44 (NX.HW4ED.006)) seems like an obvious objectively better one?
Or is the price difference about LCD vs IPS?
Or does Acer Aspire 5 A515-44 (NX.HW4ED.006) not have an RX Vega 5?
God I hate this, please help me.  |
Tell your relative his timing fucking sucks
It's just above your price range (or it was when I bought it, ~700€) but IMO a good option would be an HP Pavilion Gaming 15-ec1017np (AMD Ryzen 5 4600H/16GB/512GB SSD/GTX 1650Ti/15,6''). Sure, it's more than your relative will ever need, but in my experience:
1) This will last much, MUCH longer than some cheap 450-500€ shit
2) Stay away from most 450-500€ cheap shit, it's priced like that for a reason (it's shit)
| boundle (thoughts on cracking AITD) wrote: | | i guess thouth if without a legit key the installation was rolling back we are all fucking then |
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couleur
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Grale
Banned
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| Posted: Wed, 9th Dec 2020 14:23 Post subject: |
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| _SiN_ wrote: | | Yes it's normal/working as intended. You need to set a custom fan curve in BIOS/whatever software you use. I had the same thing with my 3900X and same with the 5950X. But a custom fan curve fixes that, Way quieter in pretty much every scenario, and no more fans ramping up and down all the time. |
Thanks Sin.
I’ve also downloaded chipset drivers and checked power plan and it’s now set to Ryzen Balanced. Slightly better performance but still a lot of fluctuation.
What type of fan curve did you set for the cpu? I’m thinking of setting my fans to maximum speed that is audibly ok and setting a flat curve up to say 50 degrees. That seems to be the highest on idle.
Do you think this would work and be ok
MSI X570 Tomahawk |Corsair Vengeance LPX 32gb 3600mhz | Ryzen 5800X3D | EKWB Watercooling | Seasonic Focus GX 850 Gold PSU | 4090 Founders | Predator X34P UW curved monitor | Window Pro 10 x64
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_SiN_
Megatron
Posts: 12108
Location: Cybertron
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| Posted: Wed, 9th Dec 2020 15:06 Post subject: |
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| Grale wrote: | | _SiN_ wrote: | | Yes it's normal/working as intended. You need to set a custom fan curve in BIOS/whatever software you use. I had the same thing with my 3900X and same with the 5950X. But a custom fan curve fixes that, Way quieter in pretty much every scenario, and no more fans ramping up and down all the time. |
Thanks Sin.
I’ve also downloaded chipset drivers and checked power plan and it’s now set to Ryzen Balanced. Slightly better performance but still a lot of fluctuation.
What type of fan curve did you set for the cpu? I’m thinking of setting my fans to maximum speed that is audibly ok and setting a flat curve up to say 50 degrees. That seems to be the highest on idle.
Do you think this would work and be ok |
I've set mine to be like 40% speed up to about 60C, then it ramps up from there, only to hit 100% when it's over 80C. The auto fan profile was way too aggressive, so it would ramp up too soon.
My best tip would be to set all fans to whatever percentage you are OK with hearing for most of the time, and make it so it sits at that percentage up to about 65C, then you can ramp it up the higher it gets, so you're hitting full speed (if that's even needed) somewhere over 80C. I can't remember, does Ryzen 3xxx throttle at 90 like 5xxx, or was it 95?
Anyway, that's what I think anyway. A Ryzen without a custom fan profile can be very annoying 
Watercooled 5950X | AORUS Master X570 | Asus RTX 3090 TUF Gaming OC | 64Gb RAM | 1Tb 970 Evo Plus + 2Tb 660p | etc etc
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| Posted: Wed, 9th Dec 2020 17:37 Post subject: |
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Last edited by Yondaime on Mon, 2nd Dec 2024 15:30; edited 1 time in total
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| Posted: Wed, 9th Dec 2020 19:27 Post subject: |
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this is.. interesting
 
| Lutzifer wrote: | | and yes, mine is only average |
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| Posted: Wed, 9th Dec 2020 20:33 Post subject: |
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| Posted: Wed, 9th Dec 2020 23:00 Post subject: |
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well considering that it shows that the IF and MEM Controller went to 3600 (lol) and there was no throttling at any time - I suspect it's a false reading
| Lutzifer wrote: | | and yes, mine is only average |
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