Upgrading to 3080ti

olihoo

Active member
Hi, pc bought 4 years ago from pc specialist and looking to upgrade my system to a 3080ti from the 2080ti (got a cheap deal) and I am bit confused how the cabling to the psu works. As far as I can see there is one 8 pin connector from the psu which splits into 2 8 pin connectors on the other to the gpu. On the psu itself I can see 2 8 pin slot available under peripherals/sata section, although one slot free is on the top row second in from the left and the other is the second row third in from the left. My question is what do I need to do to correctly set up the 3080ti with cables where the may go on the psu.

Thank you kindly.

Case
CORSAIR OBSIDIAN SERIES™ 500D SE CASE
Processor (CPU)
Intel® Core™ i9 Eight Core Processor i9-9900K (3.6GHz) 16MB Cache
Motherboard
GIGABYTE Z390 AORUS Master: ATX, LG1151, USB 3.1, SATA 6GBs Wi-Fi AC - ARGB Ready
Memory (RAM)
32GB Corsair VENGEANCE RGB DDR4 3000MHz (2 x 16GB)
Graphics Card
11GB ASUS ROG STRIX GEFORCE RTX 2080 Ti - HDMI, DP
1st M.2 SSD Drive
1TB SAMSUNG 970 EVO PLUS M.2, PCIe NVMe (up to 3500MB/R, 3300MB/W)
1st Storage Drive
2TB SEAGATE BARRACUDA SATA-III 3.5" HDD, 6GB/s, 7200RPM, 256MB CACHE
Power Supply
CORSAIR 850W RMx SERIES™ MODULAR 80 PLUS® GOLD, ULTRA QUIET
Power Cable
1 x 1.5 Metre UK Power Cable (Kettle Lead)
Processor Cooling
Corsair H115i PRO Cooler w/ PCS Ultra Quiet Fans
Thermal Paste
COOLER MASTER MASTERGEL MAKER THERMAL COMPOUND
LED Lighting
2 x 50cm RGB LED Strip
Sound Card
ONBOARD 6 CHANNEL (5.1) HIGH DEF AUDIO (AS STANDARD)
USB/Thunderbolt Options
2 PORT (1 x TYPE A, 1 x TYPE C) USB 3.1 PCI-E CARD + STANDARD USB PORTS
Operating System
Windows 10 Home 64 Bit - inc. Single Licence [KUK-00001]
Operating System Language
United Kingdom - English Language
Windows Recovery Media
Windows 10/11 Multi-Language Recovery Image - Unlimited Downloads from Online Account
Office Software
FREE 30 Day Trial of Microsoft 365® (Operating System Required)
Anti-Virus
BullGuard™ Internet Security - Free 90 Day License inc. Gamer Mode
Browser
Microsoft® Edge
Warranty
3 Year Silver Warranty (1 Year Collect & Return, 1 Year Parts, 3 Year Labour)
Delivery
STANDARD INSURED DELIVERY TO UK MAINLAND (MON-FRI)
Build Time
Standard Build - Approximately 8 to 10 working days
Welcome Book
PCSpecialist Welcome Book - United Kingdom & Republic of Ireland
Price: £0.00 including VAT and Delivery
 

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SpyderTracks

We love you Ukraine
Untitled.jpg


You need the 6+2 pins, it's best practice to use 2 individual ones, don't use a splitter as that can overload the cable.

There is an extra one on the top row too. But you only need 2.

But it looks like your current GPU is using 2 x 6+2's as it is, so you can use the same ones.
 

olihoo

Active member
Thanks for the diagram. The 3080ti has 3x8 pin connections on the front of the gpu. Would I just route another 8 pin connector somewhere?
 

SpyderTracks

We love you Ukraine
Thanks for the diagram. The 3080ti has 3x8 pin connections on the front of the gpu. Would I just route another 8 pin connector somewhere?
Yep, to one of the 6+2's, you should have spare PSU cables in your welcome box.

Don't use cables you may have left over from another PSU, they're often not compatible and use different pinouts and can lead to shorts.

If you did need to buy a cable, you have to make sure it's the right type for the generation of your PSU


A 6+2 is an 8pin cable but the last 2 pins can be separated to allow for 6pin GPU connectors

1692913913004.png
 

olihoo

Active member
just a follow up question, the three cables that come with the pc look like it’s 8 pin into the psu and comes into 2 connections 6+2 pin connector on the gpu, as far i as I can tell that’s how the 2080ti is plugged in at the moment from that one cable. Would it be fine to just use another of the same cable I have that came with the pc then effectively one of the 6+2 pin connector is just dangling to the side of the gpu as only one is needed, hope that’s makes sense
 

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SpyderTracks

We love you Ukraine
just a follow up question, the three cables that come with the pc look like it’s 8 pin into the psu and comes into 2 connections 6+2 pin connector on the gpu, as far i as I can tell that’s how the 2080ti is plugged in at the moment from that one cable. Would it be fine to just use another of the same cable I have that came with the pc then effectively one of the 6+2 pin connector is just dangling to the side of the gpu as only one is needed, hope that’s makes sense
It's best not to use a splitter so have 3 individual cables from 3 psu ports.
 
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