GPU-Z PerfCap Reason behavior...

Flying Fish · May 18, 2019

Hi...

I've just upgraded my GPU to an MSI 1660 Ti Gaming X from an MSI 960 Gaming 2GB...

On the old 960 PerfCap Reason was typically Vrel (or sometimes Pwr)...but under load there was always a PerfCap Reason...

On the 1660 Ti the behaviour is...odd...in that PerfCap Reason constantly stays at Idle even though the card is under full load and overclock boosting to 2130 GPU and 1625 memory. I've never seen that before and I don't know if it's normal or possible!

If I drop power limit down to...90 or 80% then PerfCap reason changes to Pwr and the GPU clock obviously drops...

Is this normal behaviour or is it acting a bit odd?

Obviously it's reporting a PerfCap reason if I drop the power but even leaving Power limit at 100% and increasing GPU clock +160mhz to 2130 boosted and +500 on the memory so it's running at 1625, it's still PerfCap Reason Idle which...just doesn't make sense...Power Consumption % is pinned at 98% at W is 130.

Thanks for any help.

W1zzard · May 18, 2019

Hmm good question. Did a quick check, on the RTX 2080 in my work PC it properly switches away from "Idle".

Let me dig out a GTX 1660 Ti

Flying Fish · May 18, 2019

Super, thanks

I do like this MSI 1660 Ti Gaming X card but....
The first one I had was only running at PCIe x8. Took that back, got a replacement and then have this PerfCap shenanigans...

If it isn't right I don't know if I should try again...

newtekie1 · May 18, 2019

Flying Fish said:
If it isn't right I don't know if I should try again...

If the performance is where it should be, what does it matter if GPU-Z isn't reading PerfCap correctly?

W1zzard · May 21, 2019

Flying Fish said:
Is this normal behaviour or is it acting a bit odd?

Sorry for the delay. Confirmed, this is the normal behavior, a bit strange indeed.

Flying Fish · May 21, 2019

Thanks very much for checking

At least I know my card is behaving normally now...

I've done some head scratching and testing since I posted and I saw in MSI Afterburner...

Temp limit, Power limit and Voltage limit are all 0 and No load limit is 1. If I drop power limit down to...90 or 80%, No load limit drops to 0 and Power limit goes to 1....this basically matches what I see in GPU-Z...so rather than an issue with GPU-Z it seems to be an issue with the card reporting.

It seems it may be something with MSI cards as I've done some googling around and found screenshots of several MSI ards with strange perfcap readings looking at the load on the card, including a 2080

http://www.technews.lt/portal/wp-content/uploads/2020/03/msi-1660-ti-temp-freq.jpg

http://www.vmodtech.com/main/wp-content/uploads/2019/02/21/msi-geforce-gtx-1160ti-gaming-x-review/fm.jpg

https://www.overclock3d.net/gfx/articles/2018/09/18221345205l.jpg

But a couple of screenshots from other brand cards look...fairly normal

https://legitreviews.com/wp-content/uploads/2019/03/evga-1660ti-gpuz-load.jpg

https://legitreviews.com/wp-content/uploads/2019/02/asus-1660-load.jpg

http://www.vmodtech.com/main/wp-content/uploads/2019/02/19/asus-geforce-gtx-1660-ti-rog-strix-gaming-review/furde.jpg

https://greentechreviews.ru/wp-content/uploads/2019/03/4-6.jpg

Although the only perfcap reason i've seen anywhere on a 1660 Ti is Pwr...

W1zzard · May 21, 2019

Flying Fish said:
It seems it may be something with MSI cards

Board partners have no control over perfcap, NVIDIA has locked that tight.

Flying Fish said:
Although the only perfcap reason i've seen anywhere on a 1660 Ti is Pwr...

Stop the fan with your fingers and put some load on the card, should see "Thrm" at some point

Did a quick test with ASUS GTX 1660 Ti STRIX, same behavior, always "idle" and "pwr"

W1zzard said:
Stop the fan with your fingers and put some load on the card, should see "Thrm" at some point

I tested this for you, works as expected

Flying Fish · May 21, 2019

Hmm ok then, thanks for that...

Still, it's pretty strange that it doesn't get a PerfCap Reason when running furmark or GPU-Z render test...I've done +800 on memory and +150 on core and i still haven't managed to get it to hit Pwr perfcap reason...

It leaves me scratching my head a bit since at stock it starts at 1995mhz and then drops to 1985 then 1965...without displaying a perfcap reason which makes little sense to me, if there's something causing it to throttle back, even slightly, you'd think there would be a reason...

Anyways, thanks for your help

Glad I know my card is fine!

W1zzard · May 21, 2019

Flying Fish said:
it starts at 1995mhz and then drops to 1985 then 1965.

temperature

Mantech · Jan 31, 2020

Hi, having the same issues with my Asus strix 2070 super A8G. During load perfcap reason is IDLE, while no load perfcap reason is PWR. Everything seems to be running fine. Any chance W1zzard can confirm this?

W1zzard · Jan 31, 2020

That is strange, and clocks are correct in idle and load?

londiste · Jan 31, 2020

Doesn't Idle mean that no limits are being hit?

Mantech · Jan 31, 2020

W1zzard said:
That is strange, and clocks are correct in idle and load?

Clock is 300 mhz, mem 101.1, temp 25 while idle
Clock is 1980-2010 mhz, mem 7001, 56-59c during load

londiste said:
Doesn't Idle mean that no limits are being hit?

That's what I would think. Seems like the same issues as OP

W1zzard · Jan 31, 2020

Looks normal indeed. No idea

Mantech · Jan 31, 2020

Still within exchange period. Should I just grab another card because of this? Or just leave it be?

londiste · Jan 31, 2020

Now that I am at my own computer, I tend to have Afterburner monitoring graphs on second screen. Names in Afterburner are a bit better - No load, Voltage, Power and Temp limits. No load/Idle is True when none of the other limits have been triggered, once some other limit triggers, No load/idle is False.

When GPU load is not maxed, it is common enough that No load/idle is still set. Basically at this point there is still some reserve performance available.

Mantech · Jan 31, 2020

ASUS Republic of Gamers [ROG] | The Choice of Champions Overclocking, PC Gaming, PC Modding, Support, Guides, Advice

This is the Official ASUS Republic of Gamers (ROG) discussion forum. To find out more about ASUS ROG, please go to http://rog.asus.com/.

rog.asus.com

ASUS Republic of Gamers [ROG] | The Choice of Champions Overclocking, PC Gaming, PC Modding, Support, Guides, Advice

This is the Official ASUS Republic of Gamers (ROG) discussion forum. To find out more about ASUS ROG, please go to http://rog.asus.com/.

rog.asus.com

Thanks, here are some pics for reference.

Naki · Jan 31, 2020

Your pics do not work. Use a common image hosting site, not another forum we have no access to.
(or use the Attach files button)

EDIT: Examples of common, good free hosting websites are:

Imgur

Imgur: The magic of the Internet

imgur.com

Flickr

The safest and most inclusive global community of photography enthusiasts. The best place for inspiration, connection, and sharing!

www.flickr.com

Postimages — free image hosting / image upload

Provides free image upload and hosting integration for forums. Free picture hosting and photo sharing for websites and blogs.

postimage.org

Photo Storage

Store your photos and videos online with secure storage from Photobucket. Available on iOS, Android and desktop. Securely backup your memories and sign up today!

photobucket.com

Tinypic was great too, but seems it died in Sept 2019. RIP Tinypic!

Mantech · Feb 1, 2020

Sorry, still learning! Lmk if these pictures are showing. Thanks.

Naki · Feb 1, 2020

Yep!

All fine now, thanks. You are welcome.
Let's see what londiste and @W1zzard say now.

EDIT: By the way, welcome to the TPU Forums!

Hope you like it here.

W1zzard · Feb 1, 2020

I have no further ideas, try opening a ticket at Nvidia customer support, maybe something interesting comes out of it. They do reply fairly quickly

Mantech · Feb 1, 2020

Thanks for the help everyone!

londiste · Feb 2, 2020

Oh, I was not looking at the clocks, concentrating on the Idle while load part. 300MHz core and 100/400MHz VRAM clocks should be deep idle, usually with monitor(s) on standby. I am seeing power limit getting triggered in that state as well. This should not be a concern, probably a side effect of how exactly Nvidia managed idle clocks.

Hydro5 · Feb 4, 2020

My 2070 SUPER does this when I have OCed even just a little bit past these values...

+120 MHZ Core Clock
+200 MHZ Memory Clock

Almost constant perfcap reason of "Power"
My GPU BIOS is locked at %100 Power Limit, cannot adjust that setting at all.

Mantech · Feb 4, 2020

Thanks guys, everything is running great and really enjoying this card. Coming from a GTX 960!

Processor	Ryzen 7 5700X
Memory	48 GB
Video Card(s)	RTX 4080
Storage	2x HDD RAID 1, 3x M.2 NVMe
Display(s)	30" 2560x1600 + 19" 1280x1024
Software	Windows 10 64-bit

Processor	Intel Core i7 10850K@5.2GHz
Motherboard	AsRock Z470 Taichi
Cooling	Corsair H115i Pro w/ Noctua NF-A14 Fans
Memory	32GB DDR4-3600
Video Card(s)	RTX 2070 Super
Storage	500GB SX8200 Pro + 8TB with 1TB SSD Cache
Display(s)	Acer Nitro VG280K 4K 28"
Case	Fractal Design Define S
Audio Device(s)	Onboard is good enough for me
Power Supply	eVGA SuperNOVA 1000w G3
Software	Windows 10 Pro x64

Processor	Ryzen 7 5700X
Memory	48 GB
Video Card(s)	RTX 4080
Storage	2x HDD RAID 1, 3x M.2 NVMe
Display(s)	30" 2560x1600 + 19" 1280x1024
Software	Windows 10 64-bit

Processor	Ryzen 7 5700X
Memory	48 GB
Video Card(s)	RTX 4080
Storage	2x HDD RAID 1, 3x M.2 NVMe
Display(s)	30" 2560x1600 + 19" 1280x1024
Software	Windows 10 64-bit

Processor	Ryzen 7 5700X
Memory	48 GB
Video Card(s)	RTX 4080
Storage	2x HDD RAID 1, 3x M.2 NVMe
Display(s)	30" 2560x1600 + 19" 1280x1024
Software	Windows 10 64-bit

Processor	R5 5600X
Motherboard	ASUS ROG STRIX B550-I GAMING
Cooling	Alpenföhn Black Ridge
Memory	2*16GB DDR4-2666 VLP @3800
Video Card(s)	EVGA Geforce RTX 3080 XC3
Storage	1TB Samsung 970 Pro, 2TB Intel 660p
Display(s)	ASUS PG279Q, Eizo EV2736W
Case	Dan Cases A4-SFX
Power Supply	Corsair SF600
Mouse	Corsair Ironclaw Wireless RGB
Keyboard	Corsair K60
VR HMD	HTC Vive

System Name	Main PC/OldPC/3rd PC
Processor	Intel Core i7-3770K Ivy Bridge/Core i5-3470 Ivy Bridge/Core i3-4330 Haswell
Motherboard	ASUS P8Z77-V/ASRock Z68 Pro3 Gen1/ASUS H81M2
Cooling	Cooler Master Hyper 212 EVO/Intel Box cooler/Intel Box cooler
Memory	32GB Corsair Vengeance/32GB ADATA/16GB ADATA
Video Card(s)	SAPPHIRE R9 290 Tri-X OC 4GB/MSI RX 480 8GB/SAPPHIRE R9 390 8GB
Storage	2x1TB ADATA SSDs in RAID0+3 HDDs/2xCrucial 1TB SSDs in RAID0+3 HDDs/Samsung 1TB SSD+8TB+4TB HDDs
Display(s)	Philips 274E5QHAB@HDMI + Philips 273EQH@DVI (both 27")
Case	Fractal Design Define R4 Titanium
Audio Device(s)	Kenwood Mini HiFi system/Microlab speakers/Philips HDMI (main)+LG TV monitor HDMI + Apple headphones
Power Supply	Cooler Master Silent ProM 600 W (modular)
Mouse	Microsoft Ergonomic Sculpt Desktop 2.0 (combo)@Razer Goliath mousepad (Medium speed)
Keyboard	Microsoft Ergonomic Sculpt Desktop 2.0 (combo)
Software	Win10 64-bit (Main PC v.1809 RTM Enterprise/2nd PC v.1903 Insider Preview Pro/3rd PC - same as 2nd)

System Name	Dell Alienware Aurora R8
Processor	Intel Core i7 9700k [OC 4.8GHZ{Liquid Cooled}]
Motherboard	Alienware Model: 02XRCM (U3E1)
Cooling	CPU Liquid Cooled / Dual Fan Case
Memory	Kingston HyperX FURY DDR4 2933 MHz [Two 8GB sticks]
Video Card(s)	Nvidia GeForce RTX 2070 SUPER [8GB GDDR6]
Storage	NVMe TOSHIBA [1TB] \ SSD SAMSUNG 860 EVO [1TB]
Display(s)	LG NanoCell 55in 4K TV [2019 - 55SM8600PUA]
Case	Aurora R8
Audio Device(s)	FRISBY Bluetooth
Power Supply	Alienware 850 Watt
Mouse	Logitech G903
Keyboard	Logitech G910
Software	Windows 10 Home 64-Bit

GPU-Z PerfCap Reason behavior...

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