z170 oc formula GPU in any pcie slot?
Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=4126
Printed Date: 22 Jul 2025 at 5:41am
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Topic: z170 oc formula GPU in any pcie slot?
Posted By: Spacebar
Subject: z170 oc formula GPU in any pcie slot?
Date Posted: 30 Dec 2016 at 10:18am
| " rel="nofollow - On the z170 oc formula, with a single GPU card, can any pcie slot be used or does it have to be the slot closest to the CPU? |
Replies:
Posted By: wardog
Date Posted: 30 Dec 2016 at 10:34am
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So far with my OCF I've had my GTX 1070 in the top TWO slots w/o issue. Mind you, YMMV, yet that is my experience here. |
Posted By: parsec
Date Posted: 30 Dec 2016 at 11:11am
The difference between PCIe 3.0 x16 and PCIe 3.0 x8 is said to be about 1% difference in performance. Only the x16 slot closest to the CPU socket is x16 electrically. EDIT: The PCIE2 slot is only x4 electrically according to the specs. The PCIE4 slot is x8 electrically, the PCIE2 and PCIE6 slots are x4 electrically. ------------- http://valid.x86.fr/48rujh" rel="nofollow"> 
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Spacebar wrote:Posted By: Spacebar
Date Posted: 30 Dec 2016 at 12:17pm
| Thanks for the info guys. I'm trying to watercool a Corsair 600q case and there is just not enough room for the pump between the GPU and bottom radiator. |
Posted By: wardog
Date Posted: 30 Dec 2016 at 12:45pm
" rel="nofollow -
Well, don't put your GPU in the second slot like I had. It was only there temporarily thus I didn't notice the x4 slot. Interesting, Inverted ATX. Top heavy for my HDD needs though. http://www.corsair.com/en-us/carbide-series-quiet-600q-inverse-atx-full-tower-case "".... not enough room for the pump between the GPU and bottom radiator."" Huh? There looks to be plenty if your rad is mounted at the bottom. |