• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

GPU-Z shows HD 7970 @ x8 1.1 only ?

bmwmaster

New Member
Joined
Jul 5, 2010
Messages
51 (0.01/day)
Hi,

my problem is that GPU-Z shows only PCI-E 3.0 x16 @ x8 1.1 lanes (with HD 7970).

It is an Gigabyte Ga-x58a-UD7 board and should run @ x16 2.0.
There aren't any other cards installed near the pci-e slot.
Its a single Card no CF.

I had this issue already with my old 6970 cards.
But they ran in CF so i thought this were the reason for only x8.

When i removed one of them, i wondered that the other card still runed with only x8 lanes.
Switched to 7970 and still only 8 lanes..........................?

I think something must be wrong......................but dont't know what it could be.

Has anyone an idea ?
 
Joined
Aug 29, 2005
Messages
7,062 (1.04/day)
Location
Asked my ISP.... 0.0
System Name Lynni PS \ Lenowo TwinkPad T480
Processor AMD Ryzen 7 7700 Raphael \ i7-8550U Kaby Lake-R
Motherboard ASRock B650M PG Riptide Bios v. 2.02 AMD AGESA 1.1.0.0 \ Lenowo 20L60036MX Bios 1.47
Cooling Noctua NH-D15 Chromax.Black (Only middle fan) \ Lenowo WN-2
Memory G.Skill Flare X5 2x16GB DDR5 6000MHZ CL36-36-36-96 AMD EXPO \ Willk Elektronik 2x16GB 2666MHZ CL17
Video Card(s) Asus GeForce RTX™ 4070 Dual OC GPU: 2325-2355 MEM: 1462| Nvidia GeForce MX™ 150 2GB GDDR5 Micron
Storage Gigabyte M30 1TB|Sabrent Rocket 2TB| HDD: 10TB|1TB \ SKHynix 256GB 2242 3x2
Display(s) LG UltraGear 27GP850-B 1440p@165Hz | LG 48CX OLED 4K HDR | AUO 14" 1440p IPS
Case Fractal Design Meshify 2 Tempered Glass White/Black | Lenowo T480 chassis
Audio Device(s) Steelseries Arctis Pro Wireless
Power Supply Be Quiet! Pure Power 12 M 750W Goldie | 65W
Mouse Logitech G305 Lightspeedy Wireless | Lenowo TouchPad & Logitech G305
Keyboard Akko 3108 DS Horizon V2 Cream Yellow | T480 UK Lumi
Software Win11 Pro 23H2 UK
Benchmark Scores 3DMARK: https://www.3dmark.com/3dm/89434432? GPU-Z: https://www.techpowerup.com/gpuz/details/v3zbr
check information through Catalyst Control Center? if not try that, could be GPU-Z that not detecting properly, or take out ur card clean ur pci-e slot and try to "totally" remove all the graphic drivers and install the newest one u can get.
 

eidairaman1

The Exiled Airman
Joined
Jul 2, 2007
Messages
40,435 (6.61/day)
Location
Republic of Texas (True Patriot)
System Name PCGOD
Processor AMD FX 8350@ 5.0GHz
Motherboard Asus TUF 990FX Sabertooth R2 2901 Bios
Cooling Scythe Ashura, 2×BitFenix 230mm Spectre Pro LED (Blue,Green), 2x BitFenix 140mm Spectre Pro LED
Memory 16 GB Gskill Ripjaws X 2133 (2400 OC, 10-10-12-20-20, 1T, 1.65V)
Video Card(s) AMD Radeon 290 Sapphire Vapor-X
Storage Samsung 840 Pro 256GB, WD Velociraptor 1TB
Display(s) NEC Multisync LCD 1700V (Display Port Adapter)
Case AeroCool Xpredator Evil Blue Edition
Audio Device(s) Creative Labs Sound Blaster ZxR
Power Supply Seasonic 1250 XM2 Series (XP3)
Mouse Roccat Kone XTD
Keyboard Roccat Ryos MK Pro
Software Windows 7 Pro 64
you ever think to remove and update your motherboard chipset and video card drivers?
 
Joined
Oct 26, 2011
Messages
3,145 (0.69/day)
Processor 8700k Intel
Motherboard z370 MSI Godlike Gaming
Cooling Triple Aquacomputer AMS Copper 840 with D5
Memory TridentZ RGB G.Skill C16 3600MHz
Video Card(s) GTX 1080 Ti
Storage Crucial MX SSDs
Display(s) Dell U3011 2560x1600 + Dell 2408WFP 1200x1920 (Portrait)
Case Core P5 Thermaltake
Audio Device(s) Essence STX
Power Supply AX 1500i
Mouse Logitech
Keyboard Corsair
Software Win10
You should be able to select PCIe lanes allocation within your motherboard's BIOS, under chipset.
Ever tried restoring BIOS to default?
 
Joined
Jun 24, 2010
Messages
278 (0.06/day)
System Name MSI GT72S 6QE
Processor Core i7 6820HK
Motherboard Intel Sunrise Point CM236
Cooling 2 fans
Memory 2x 8 GB SO-DIMM DDR4-RAM (2133 MHz)
Video Card(s) NVIDIA GeForce GTX 980M - 8192 MB
Storage 1 ssd 3 hard drives
Display(s) 17.3 inch 16:9, 1920x1080 pixel, LG Philips LP173WF4-SPF1 (LGD0469), IPS, Full HD
Case ??!!!
Audio Device(s) Realtek ALC899
Power Supply most beautiful brick you have ever seen
PCI-E 3.0 x8 = PCI-E 2.0 x16
 

W1zzard

Administrator
Staff member
Joined
May 14, 2004
Messages
26,956 (3.71/day)
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
have you tried putting some load on the card? it goes to a lower pcie to save power in idle
 

INSTG8R

Vanguard Beta Tester
Joined
Nov 26, 2004
Messages
7,955 (1.13/day)
Location
Canuck in Norway
System Name Hellbox 5.1(same case new guts)
Processor Ryzen 7 5800X3D
Motherboard MSI X570S MAG Torpedo Max
Cooling TT Kandalf L.C.S.(Water/Air)EK Velocity CPU Block/Noctua EK Quantum DDC Pump/Res
Memory 2x16GB Gskill Trident Neo Z 3600 CL16
Video Card(s) Powercolor Hellhound 7900XTX
Storage 970 Evo Plus 500GB 2xSamsung 850 Evo 500GB RAID 0 1TB WD Blue Corsair MP600 Core 2TB
Display(s) Alienware QD-OLED 34” 3440x1440 144hz 10Bit VESA HDR 400
Case TT Kandalf L.C.S.
Audio Device(s) Soundblaster ZX/Logitech Z906 5.1
Power Supply Seasonic TX~’850 Platinum
Mouse G502 Hero
Keyboard G19s
VR HMD Oculus Quest 2
Software Win 10 Pro x64
have you tried putting some load on the card? it goes to a lower pcie to save power in idle

Yep Wizzard is on to it. You can change this under Power Management. Turn off PCI Express Link State Power Management if you are bothered by it.
 

bmwmaster

New Member
Joined
Jul 5, 2010
Messages
51 (0.01/day)
have you tried putting some load on the card? it goes to a lower pcie to save power in idle

yes, i did that already.

Next steps i try.....

Load Bios defaults..................because i didn't after the last bios update.
I thought this isn't nessesary.

Try new chipset drivers.....
 

W1zzard

Administrator
Staff member
Joined
May 14, 2004
Messages
26,956 (3.71/day)
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

W1zzard

Administrator
Staff member
Joined
May 14, 2004
Messages
26,956 (3.71/day)
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
and you have just a single hd 7970 installed ? no other graphics cards?
 

bmwmaster

New Member
Joined
Jul 5, 2010
Messages
51 (0.01/day)
yes, only one card.

There is another auzentech soundcard three slots above the gfx.

Now i loaded bios defaults and cleaned the slots with air...............

Chipset drivers should be new..............

I think now i try to uninstall all ati drivers clean.................
 
Joined
Oct 26, 2011
Messages
3,145 (0.69/day)
Processor 8700k Intel
Motherboard z370 MSI Godlike Gaming
Cooling Triple Aquacomputer AMS Copper 840 with D5
Memory TridentZ RGB G.Skill C16 3600MHz
Video Card(s) GTX 1080 Ti
Storage Crucial MX SSDs
Display(s) Dell U3011 2560x1600 + Dell 2408WFP 1200x1920 (Portrait)
Case Core P5 Thermaltake
Audio Device(s) Essence STX
Power Supply AX 1500i
Mouse Logitech
Keyboard Corsair
Software Win10
Is the GPU installed on the first blue PCIe slot?



If this is the motherboard in question, the first and the third blue slots are 16x electrical, the others are 8x electrical
 

bmwmaster

New Member
Joined
Jul 5, 2010
Messages
51 (0.01/day)
yes its in the first blue slot (next to cpu).

I now made an clean install of the Catalyst 7900 Series driver.
It still runs with only x8 lanes. :eek:


I think i have to downgrade the bios......now latest beta bios (FD11) is running.
 
Joined
Jul 19, 2006
Messages
43,585 (6.74/day)
Processor AMD Ryzen 7 7800X3D
Motherboard ASUS TUF x670e
Cooling EK AIO 360. Phantek T30 fans.
Memory 32GB G.Skill 6000Mhz
Video Card(s) Asus RTX 4090
Storage WD m.2
Display(s) LG C2 Evo OLED 42"
Case Lian Li PC 011 Dynamic Evo
Audio Device(s) Topping E70 DAC, SMSL SP200 Headphone Amp.
Power Supply FSP Hydro Ti PRO 1000W
Mouse Razer Basilisk V3 Pro
Keyboard Tester84
Software Windows 11
Try removing the sound card and test again.
 

W1zzard

Administrator
Staff member
Joined
May 14, 2004
Messages
26,956 (3.71/day)
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
for the record, gpuz has not once been wrong with providing PCIe info.

mobo vendors and card manufacturers have reported "bugs" with it, it ended up being their own fault
 

bmwmaster

New Member
Joined
Jul 5, 2010
Messages
51 (0.01/day)
For me it now also seems to be a bug.

I have flashed bios now to newest version and nothing changed.
 

eidairaman1

The Exiled Airman
Joined
Jul 2, 2007
Messages
40,435 (6.61/day)
Location
Republic of Texas (True Patriot)
System Name PCGOD
Processor AMD FX 8350@ 5.0GHz
Motherboard Asus TUF 990FX Sabertooth R2 2901 Bios
Cooling Scythe Ashura, 2×BitFenix 230mm Spectre Pro LED (Blue,Green), 2x BitFenix 140mm Spectre Pro LED
Memory 16 GB Gskill Ripjaws X 2133 (2400 OC, 10-10-12-20-20, 1T, 1.65V)
Video Card(s) AMD Radeon 290 Sapphire Vapor-X
Storage Samsung 840 Pro 256GB, WD Velociraptor 1TB
Display(s) NEC Multisync LCD 1700V (Display Port Adapter)
Case AeroCool Xpredator Evil Blue Edition
Audio Device(s) Creative Labs Sound Blaster ZxR
Power Supply Seasonic 1250 XM2 Series (XP3)
Mouse Roccat Kone XTD
Keyboard Roccat Ryos MK Pro
Software Windows 7 Pro 64
Your specific board has bandwidth sharing between PCI E slots

PCIE 16x 1 slot Halves its bandwidth when PCIE 8x 1 slot is occupied and PCIE 16x 2 slot Halves its bandwidth when PCIE 8x 2 slot is occupied. So that means to prevent your 16x slots from losing half their bandwidth your 8x slots have to remain empty, no matter what card you have in the 8x slot.
 

bmwmaster

New Member
Joined
Jul 5, 2010
Messages
51 (0.01/day)
Your specific board has bandwidth sharing between PCI E slots

PCIE 16x 1 slot Halves its bandwidth when PCIE 8x 1 slot is occupied and PCIE 16x 2 slot Halves its bandwidth when PCIE 8x 2 slot is occupied. So that means to prevent your 16x slots from losing half their bandwidth your 8x slots have to remain empty, no matter what card you have in the 8x slot.

I have even tested without any other card installed.

Nope still x8
 

tomk

New Member
Joined
Feb 18, 2012
Messages
5 (0.00/day)
I have the same problem

I used to have four 5850s and they worked alright, but they only had 4 gigs of gddr5 as a whole, so I upgraded a bit and bought three 7970s, What is does is have it 2.0 x8 1.1 x8 and 1.1 x8 sometimes detects 896 MB of total dedicated gddr5 accross the 3 cards and sometimes detects like 3072 of dedicated, this is a little annoying, i have a rampage three extreme i7 950 4.4 ghz 18 gigs of 2200 mhz ram and 2 ssds, I hope somone has a solution l:
 
Joined
May 19, 2007
Messages
4,520 (0.73/day)
Location
Perth AU
Processor Intel Core i9 10980XE @ 4.7Ghz 1.2v
Motherboard ASUS Rampage VI Extreme Omega
Cooling EK-Velocity D-RGB, EK-CoolStream PE 360, XSPC TX240 Ultrathin, EK X-RES 140 Revo D5 RGB PWM
Memory G.Skill Trident Z RGB F4-3000C14D 64GB
Video Card(s) Asus ROG Strix GeForce RTX 4090 OC WC
Storage M.2 990 Pro 1TB / 10TB WD RED Helium / 3x 860 2TB Evos
Display(s) Samsung Odyssey G7 28"
Case Corsair Obsidian 500D SE Modded
Power Supply Cooler Master V Series 1300W
Software Windows 11
A friend has this board and also has a 7970 ill ask him to have a look and ill report back, but yer it should be running @ x16 .
 

tomk

New Member
Joined
Feb 18, 2012
Messages
5 (0.00/day)
I used to have four 5850s and they worked alright, but they only had 4 gigs of gddr5 as a whole, so I upgraded a bit and bought three 7970s,

What it does is have them running at PCI E 2.0 x8, 1.1 x8, and 1.1 x8 sometimes detects 896 MB of total dedicated gddr5 across the 3 cards, sometimes detects 3072 of dedicated, and 2048 of dedicated this is a little annoying, i have a rampage iii extreme as my mobo.

When i had them in there, at first it would refuse to play any game and bsod with the ati thingy as the reason, now it plays with one card...


I also am trying to do my eyefinity of 3240x1920... when my 5850s would do it fine on med high w/o aa


Id hate to have to return these.
...
 

user21

New Member
Joined
Jun 10, 2011
Messages
282 (0.06/day)
Location
Peshawar
hav you still tried without the soundcard plugged in?
 
Top