deadpoor

I haven't been on this forum for years as I parted ways due to numerous issues with LTT (all stemming from the focus on growth rather than the consumer) but I was deeply saddened that things have only gotten worse.  I'm not here to throw stones, only beg that LMG please take the criticism constructively, rather than just disregard it as some kind of attack.  LTT was how I first got involved in tech, back when you were a small channel, so even though I don't watch most of your videos anymore, it still holds meaning to me.  I have no desire for you to fail.  Just slow down and focus on ethical practices, rather than capital. Yes, companies that focus on the consumer most usually don't grow as fast or make as much money, but you need to decide what's more important to you.
 
You're being treated like a corporation and not an individual because that's what you are. You can't view everything as a personal attack on your character.

well, the more knowledgeable future steve said the same thing two year after, better late than never...I guess.

Fyi, just found this on nvidia subreddit:
https://www.igorslab.de/en/what-real-what-can-be-investigative-within-the-crashes-and-instabilities-of-the-force-rtx-3080-andrtx-3090/

This is a relative new problem, I found some info and half is chinese.
A 2018 discuss and jayz 2cents 
MSI engineer Toppc Lin talk about temp different with different number of connector.  
 

 
Seasonic installation guide. https://knowledge.seasonic.com/article/8-installation-remark-for-high-power-consumption-graphics-cards

 
 
A guide of connector on Chinese PSU review site FCPOWERUP. https://www.fcpowerup.com/cpu-8pin-4pin-connector/

origin article at https://www.fcpowerup.com/end-gpu-spike-peakpower/
I'm confused, where did you see 2060 with 1000w, in 3.6 it says 421w. In origin post 7-6 it stats capacitors will be too much or too expensive to handle this, and will causing other problems.
 
FCPowrup is a professional PSU review site in china, it post on Weibo and got thounds retweet, I post author‘s tweet for convenience. origin post is too long just like a essay, he stats he start this project at 2018 after seasonic focus+550 failure, you could see the 2080 and vega in 3-6 for relative timing.
 
https://www.fcpowerup.com/how-do-i-test-power-supplies/ In another article author describes his PSU review methods in detail, l'm not professional but hell they look like expensive. he even criticize igorslab's method not accurate enough.
 
2*Chroma 8000 Test System
Tektronix MDO3014  Oscilloscope
Tektronix TDS3014 Oscilloscope
SW826 Non-contact Laser Velocimeter
FILR One Pro
 
I’m also curious too, I find that hard to belive Gamersnexus doesn't realize about this and think it's waste money on PSU, I'd like to see third party like LTT jump in and verify those result.
 
 

This week FCP published a shocking article detailing how much peak power consumption of gpu's is and the problems that can arise that most people currently don't realize. The article is very detailed and compelling,It’s mind blow for me and Chines PC enthusiast, so I've included a short excerpt for discussion.
 
3-2. Graphics Card Load Characteristics
Since games nowadays run at dozens or even hundreds of frames, to analyze the load characteristics of the graphics card you need to measure the load of the graphics card in milliseconds or even microseconds for each frame.
Example: 2070 super running BF5, locked at 60 frames, each frame rendering cycle 16.7ms. in a rendering cycle, the graphics card has two states, rendering and resting, the peak power consumption is about 430W, 2-3 times the EDP, the power consumption is reduced to 80w when resting, and the maximum average power consumption is 200w. 

3-4. CPU and graphics card peak power phase
LinX+Furmark benchmark with 1036W instant peak power consumption.
 
3-5, “Rumored” official Nvidia graphics card peak power specifications
Maximum total power consumption is 77A/924W/1ms
 
3-6, a bunch of graphics cards peak power consumption measurement
(test platform at origin article)
 
 
 
3-7. Analysis of peak power consumption of the graphics card
When the peak power/TDP ratio(last column in list) is too large, the Piezoelectricity effect occurs due to frequent switching of transistors to control the total power consumption.
 
5-4, OCP/OPP overload protection mechanism
OCP (Over Current Protection) is a design mandated by Intel, the purpose of which is to cut off the output of the power supply when the output current is too high to maintain system safety, and interfaces, cables and other components should not be melted or damaged. According to the design of different manufacturers, the current power supply's overall OPP may be between 115% and 160% of the rated power, different power supplies can withstand overload time is also different, there will not be a long overload, usually a few hundred microseconds or a few milliseconds.
Power overload shutdown case, peak power consumption 1124W, pulse width 500uS
 
Overload test for different models
 
model
FCPG rate
OPP test
overload behave
恩杰NZXT E850
A+
~140%
normal gaming
华硕ROG Strix 750W Gold
A
1044.53W (139.27%)
shutdown protection
超频三PCCooler 七防芯GI-P850
A
1152.12W (135.5%)@560μs
shutdown protection
威刚 ADATA XPG CORE REACTOR 650W
A+
905.5W (139.3%)@47ms
normal gaming,12V undershoot risk 9.87V
爱国者 Aigo ES650
B
923.3W (142%)@7ms
normal gaming,12V overshoot risk12.9V
酷冷至尊 CoolerMaster V650
C
793.3W (122%)@4ms
12V overshoot，shutdown protection
全汉 FSP Hydro GE 650
FAIL
747.4W (115%)@18ms
no protection,12V out of control 10.68~13.44V
恩杰 NZXT C650
B
916.2W (141%)@3.02
shutdown protection
海韵 Seasonic FOCUS GX-650
B
905.6W(139.3%)@3ms
shutdown protection
振华 SuperFlower Leadex Gold 650
A
994.2W (153%)@12ms
PSU Abnormal noise
富钧 Xigmatek Harrier HA650
D
988.4W (152.1%)@8ms
shutdown protection
海盗船RM650x 2018
A
 875W (134.7%)@3.14ms
shutdown protection
海韵Seasonic FOCUS SGX-650
A
 909.4W (139.9%)@4.78ms
shutdown protection
海盗船Corsair SF750
A+
1011.09W (134.8%)@1.26ms
normal gaming,12V overshoot risk12.6V
海韵 Seasonic FOCUS GX-850
A+
 1285.66W (151.25%)@~2.5ms
normal gaming
振华 SuperFlower Leadex III Gold 650 ARGB
A+
924.65W (142.2%)@17ms
normal gaming
酷冷至尊 CoolerMaster MWE Gold V2 650W
A
 913.15W (140.48%)@2.54ms
shutdown protection
海韵 Seasonic CONNECT 1.0
A
1,009.33W (134.6%)@~2.5ms
shutdown protection
酷冷至尊 CoolerMaster V850 SFX
A+
 1225.22W (144.14%)@8.5ms
normal gaming,12V overshoot risk12.7V
恩杰NZXT C850
A+
1275.62W (150.07%)@2ms
normal gaming
九州风神DeepCool DQ850M-V2L
A
1096.79W (129.79%)@2.63ms
normal gaming, OPP low
 
To sum up, if the power supply overload protection time is longer than the peak power consumption time, you can survive the peak power consumption, but the power supply itself will increase the heat of the components, affecting the life of components, followed by an increase in the risk of “blowing up the machine”, the protection trigger time is too long, encounter really want to protect the moment, the protection function will appear sluggish, often resulting in more serious consequences, the power supply output voltage regulation is also easy to run out of control.
 
8-3, the beginning of a power plant lying shot
At the end of 2018, Techpowerup pointed out that the seasonic power supply has a serious failure, FOCUS+ 550 and ASUS graphics card or vega56/64 with will appear black screen, shutdown. seasonic official reply, after testing vega 56 crossfire got 102A/10ms peak power consumption, due to the power supply design tends to protect, relatively easy to shutdown, after 2018, the power supply has modified the overload protection sensitivity.

This article was originally published by @fcpowerup at FCPOWERUP.COM. Due to the length, I only relayed a very small part of which I think is important for now, I have two questions 1. Is the peak power consumption of the graphics card really far more than TDP as stated in this article. 2. Is the peak power consumption really has such a great impact on the stability of the power supply and system. I hope LTT can verify it. If it's true as stated in this article, then the recent power supply buying guides released by gamersnexus are severely underestimating, so I hope won't be misleading to gamers. And the PCAT  looks like another green salt sprinkled by NVIDIA.
Sorry for poorly translated article, I’m not a native English speaker, but I will be more than happy to answer any questions you may have.