Possible GPU-Z Skylake PCIe speed detection bug?

R-T-B · Sep 12, 2015

System is in specs.

So, it seems convinced I am running at PCIe 1.1 even when I run the render test. Is this really the case or is it a GPU-Z bug?

See screenshot:

Mussels · Sep 12, 2015

good chance its actually correct

R-T-B · Sep 12, 2015

Mussels said:
good chance its actually correct

Why in the world would it lock at x16 1.1? That's like a 3.0 x4 link...

it stays this way while gaming too. Kinda disconcerting.

Aquinus · Sep 12, 2015

R-T-B said:
Why in the world would it lock at x16 1.1? That's like a 3.0 x4 link...

it stays this way while gaming too. Kinda disconcerting.

Windows power saving options? BIOS forcing GEN1?

Does performance feel any worse?

R-T-B · Sep 12, 2015

Aquinus said:
Windows power saving options? BIOS forcing GEN1?

Yeah, I make a habit of turning all those off. I have a feeling this might be a early z170 bios bug, but I need to confirm it's not a GPU-Z bug first.

I have even set the nvidia driver to force gen3 in the registry, all to no avail

As for performance, synthetic benchmark scores have dropped but I just figured that was from the loss of my previous Haswell-E's 2 cores in a largely synthetic physics test. I'll have to try some real games real soon.

Mussels · Sep 12, 2015

try another card/another slot? try cleaning card/slot for dust?

R-T-B · Sep 12, 2015

Mussels said:
try another card/another slot? try cleaning card/slot for dust?

Don't have another PCIe 3.0 card on hand. But I know this one did PCIe 3.0 on my X99 mobo less than a week ago (yes, I go through mobos way too fast).

It COULD be the slot. I did try cleaning it for dust and such. No change. I guess I could move it to one of the slots driven by the PCH and see what it does.

Mussels · Sep 12, 2015

R-T-B said:
Don't have another PCIe 3.0 card on hand. But I know this one did PCIe 3.0 on my X99 mobo less than a week ago (yes, I go through mobos way too fast).

It COULD be the slot. I did try cleaning it for dust and such. No change. I guess I could move it to one of the slots driven by the PCH and see what it does.

try a 2.0 card and see if it locks to 1.1 as well.

R-T-B · Sep 12, 2015

Mussels said:
try a 2.0 card and see if it locks to 1.1 as well.

Only card I will have easy access to is a GTX 780 tomorrow (via cannibalizing my brothers PC)...

Unfortunately, I'm pretty sure that's a 3.0 card in hindsight...

I'm thinking about filing a ticket with Gigabyte and seeing what they say.

Aquinus · Sep 12, 2015

Is there another tool you can use to verify that what GPU-Z is saying is in fact correct?

AIDA will display PCI-E info under Display > GPU. Mine shows 1.1 than 3.0 when running and back to 1.1 at idle just like GPU-Z.

Even if you don't own AIDA, the trial should be sufficient.

R-T-B · Sep 12, 2015

Thanks for the advice. AIDA64 trial shows the same.

Looks like yet another fun Gigabyte bios bug for me...

Aquinus · Sep 12, 2015

R-T-B said:
Thanks for the advice. AIDA64 trial shows the same.

Looks like yet another fun Gigabyte bios bug for me...

Last but not least, you installed the latest Intel chipset drivers, right? That's the last thing I can think of that might do it.

Early adopter woes.

cadaveca · Sep 12, 2015

Ah sheesh. I just had GTX980 and G1 GAMING board built for testing, but pulled it apart last night. KEep us updated; if need be when I get back home from doing my weekly chores I'll toss the rig back together and see if I can replicate it.

Also, look for most recent BIOSes here:

http://forums.tweaktown.com/gigabyte/28441-gigabyte-latest-beta-bios.html

(link compliments of @sneekypeet)

R-T-B · Sep 14, 2015

The latest beta bios there is same as the gigabyte sites latest stable.

And yep, latest chipset drivers and all.

kn00tcn · Sep 14, 2015

is there a... likely CUDA or OCL test that is known to push the limits of the bus to prove that data is being transmitted slower than it should?

cadaveca · Sep 14, 2015

I have the ASUS Z170-DELUXE running and it shows PCIe 3.0, so this is likely either a BIOS or OS power setting issue. I guess if your performance numbers aren't similar to the ones posted in my board reviews or recent DDR4 review, then something might be up, but it might also take full-screen 3D to get it to switch, perhaps.

R-T-B · Sep 14, 2015

cadaveca said:
I have the ASUS Z170-DELUXE running and it shows PCIe 3.0, so this is likely either a BIOS or OS power setting issue. I guess if your performance numbers aren't similar to the ones posted in my board reviews or recent DDR4 review, then something might be up, but it might also take full-screen 3D to get it to switch, perhaps.

The fullscreen 3d tests i have done refuse the switch as well.

I'll check my numbers against your reviews, thanks.

R-T-B · Sep 14, 2015

Update:

Nevermind, dumbass error in my modded bios on my part. I had set the voltage too high in fixed voltage mode, forcing the card into some kind of extreme "throttle everything" state.

My fault, nothing to see here. Move along please.

Mussels · Sep 14, 2015

R-T-B said:
Update:

Nevermind, dumbass error in my modded bios on my part. I had set the voltage too high in fixed voltage mode, forcing the card into some kind of extreme "throttle everything" state.

My fault, nothing to see here. Move along please.

R-T-B · Sep 14, 2015

Mussels said:

Hey! I didn't brick my card and come crying about it! Count yourself lucky! At least I know what I'm doing well enough to fix it.

Seriously, thanks guys. I'm batshit insane and you should know this by now. If it isn't broken I'm not trying hard enough.

EDIT: Just realized I did doublepost though... oops. Be nice to me, mod gods.

Mussels · Sep 14, 2015

double posts, self brickage, general nonsense.

You're fine, i'm lazy.

System Name	Pioneer
Processor	Ryzen 9 9950X
Motherboard	MSI MAG X670E Tomahawk Wifi
Cooling	Noctua NH-D15 + A whole lotta Sunon, Phanteks and Corsair Maglev blower fans...
Memory	128GB (4x 32GB) G.Skill Flare X5 @ DDR5-4200(Running 1:1:1 w/FCLK)
Video Card(s)	XFX RX 7900 XTX Speedster Merc 310
Storage	Intel 5800X Optane 800GB boot, +2x Crucial P5 Plus 2TB PCIe 4.0 NVMe SSDs, 1x 2TB Seagate Exos 3.5"
Display(s)	55" LG 55" B9 OLED 4K Display
Case	Thermaltake Core X31
Audio Device(s)	TOSLINK->Schiit Modi MB->Asgard 2 DAC Amp->AKG Pro K712 Headphones or HDMI->B9 OLED
Power Supply	FSP Hydro Ti Pro 850W
Mouse	Logitech G305 Lightspeed Wireless
Keyboard	WASD Code v3 with Cherry Green keyswitches + PBT DS keycaps
Software	Gentoo Linux x64, other office machines run Windows 11 Enterprise

System Name	Rainbow Sparkles (Power efficient, <350W gaming load)
Processor	Ryzen R7 5800x3D (Undervolted, 4.45GHz all core)
Motherboard	Asus x570-F (BIOS Modded)
Cooling	Alphacool Apex UV - Alphacool Eisblock XPX Aurora + EK Quantum ARGB 3090 w/ active backplate
Memory	2x32GB DDR4 3600 Corsair Vengeance RGB @3866 C18-22-22-22-42 TRFC704 (1.4V Hynix MJR - SoC 1.15V)
Video Card(s)	Galax RTX 3090 SG 24GB: Underclocked to 1700Mhz 0.750v (375W down to 250W))
Storage	2TB WD SN850 NVME + 1TB Sasmsung 970 Pro NVME + 1TB Intel 6000P NVME USB 3.2
Display(s)	Phillips 32 32M1N5800A (4k144), LG 32" (4K60) \| Gigabyte G32QC (2k165) \| Phillips 328m6fjrmb (2K144)
Case	Fractal Design R6
Audio Device(s)	Logitech G560 \| Corsair Void pro RGB \|Blue Yeti mic
Power Supply	Fractal Ion+ 2 860W (Platinum) (This thing is God-tier. Silent and TINY)
Mouse	Logitech G Pro wireless + Steelseries Prisma XL
Keyboard	Razer Huntsman TE ( Sexy white keycaps)
VR HMD	Oculus Rift S + Quest 2
Software	Windows 11 pro x64 (Yes, it's genuinely a good OS) OpenRGB - ditch the branded bloatware!
Benchmark Scores	Nyooom.

System Name	Pioneer
Processor	Ryzen 9 9950X
Motherboard	MSI MAG X670E Tomahawk Wifi
Cooling	Noctua NH-D15 + A whole lotta Sunon, Phanteks and Corsair Maglev blower fans...
Memory	128GB (4x 32GB) G.Skill Flare X5 @ DDR5-4200(Running 1:1:1 w/FCLK)
Video Card(s)	XFX RX 7900 XTX Speedster Merc 310
Storage	Intel 5800X Optane 800GB boot, +2x Crucial P5 Plus 2TB PCIe 4.0 NVMe SSDs, 1x 2TB Seagate Exos 3.5"
Display(s)	55" LG 55" B9 OLED 4K Display
Case	Thermaltake Core X31
Audio Device(s)	TOSLINK->Schiit Modi MB->Asgard 2 DAC Amp->AKG Pro K712 Headphones or HDMI->B9 OLED
Power Supply	FSP Hydro Ti Pro 850W
Mouse	Logitech G305 Lightspeed Wireless
Keyboard	WASD Code v3 with Cherry Green keyswitches + PBT DS keycaps
Software	Gentoo Linux x64, other office machines run Windows 11 Enterprise

System Name	Apollo
Processor	Intel Core i9 9880H
Motherboard	Some proprietary Apple thing.
Memory	64GB DDR4-2667
Video Card(s)	AMD Radeon Pro 5600M, 8GB HBM2
Storage	1TB Apple NVMe, 2TB external SSD, 4TB external HDD for backup.
Display(s)	32" Dell UHD, 27" LG UHD, 28" LG 5k
Case	MacBook Pro (16", 2019)
Audio Device(s)	AirPods Pro, Sennheiser HD 380s w/ FIIO Alpen 2, or Logitech 2.1 Speakers
Power Supply	Display or Thunderbolt 4 Hub
Mouse	Logitech G502
Keyboard	Logitech G915, GL Clicky
Software	MacOS 15.3.1

System Name	Pioneer
Processor	Ryzen 9 9950X
Motherboard	MSI MAG X670E Tomahawk Wifi
Cooling	Noctua NH-D15 + A whole lotta Sunon, Phanteks and Corsair Maglev blower fans...
Memory	128GB (4x 32GB) G.Skill Flare X5 @ DDR5-4200(Running 1:1:1 w/FCLK)
Video Card(s)	XFX RX 7900 XTX Speedster Merc 310
Storage	Intel 5800X Optane 800GB boot, +2x Crucial P5 Plus 2TB PCIe 4.0 NVMe SSDs, 1x 2TB Seagate Exos 3.5"
Display(s)	55" LG 55" B9 OLED 4K Display
Case	Thermaltake Core X31
Audio Device(s)	TOSLINK->Schiit Modi MB->Asgard 2 DAC Amp->AKG Pro K712 Headphones or HDMI->B9 OLED
Power Supply	FSP Hydro Ti Pro 850W
Mouse	Logitech G305 Lightspeed Wireless
Keyboard	WASD Code v3 with Cherry Green keyswitches + PBT DS keycaps
Software	Gentoo Linux x64, other office machines run Windows 11 Enterprise

Possible GPU-Z Skylake PCIe speed detection bug?

R-T-B

Mussels

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Aquinus

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Mussels

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Mussels

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Aquinus

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Aquinus

Resident Wat-man

cadaveca

My name is Dave

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kn00tcn

cadaveca

My name is Dave

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Mussels

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Mussels

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