Jump to content
Search In
  • More options...
Find results that contain...
Find results in...
aslanshow

Rx550/560 only use x8?

Recommended Posts

Posted · Original PosterOP

So browsing the Newegg I saw an MSI rx550 aero and it said it was PCIe x16 uses x8. This peaked my interest as I have a PowerEdge 2900 with a PCIe x8 slot that could use a discrete graphics card. My original plan had been to cut the end of the slot and have the GC hang out the back. But a plastic shroud turned that from simple fix to a PIA.

I didn't want to remove functionality from a card by physically removing those channels but if they aren't electrically connected in the first place, no harm.

So the question is are all rx550s using x8?

Are there better or cheaper cards that are electronically limited to x8 PCIe?

I'm not looking to game on it. Just more Gui than it's designed for. Linux compatibility a plus.

Link to post
Share on other sites

how about a PCIe extension, then leaving the GPU somewhere else

A RX 550 will barely saturate a 4x lane, let alone 16.


Beta!  X570 VRM + Features list (PM me if you want to help) 

 

Will prob be making an X570 "tier" list when that is completed.

Some Custom Loop Questions, please help answer them.

 

PC (Main)

 

CPU: i5-8400 CPU Cooler: Cryorig M9 Plus   Motherboard: Gigabyte B360M DS3H | RAM: Crucial Ballistix Sport 2x8 DDR4-2400

 Boot/OS SSD: Inland 480GB SSD | Video Card: RX 570 4GB Strix OC | Case: Fractal Design Meshify C White TG (11/10) PSU: EVGA SuperNOVA G3 750

Monitor: Sceptre 24" 1080p 75hz Webcam: Logitech C920s

 

NAS:

Synology DS418J w/ 4x WD Red Pro 6TB RAID 10 (used 7.3/12TB)

 

Phone/Tablet:

iPhone XR 64GB iPad Mini 4 128GB

 

Laptops:

Dell XPS 15 9570 i7-8750H + 1050 ti + 20GB ram (16+4) + 1TB EX920 SSD

 

My old computers:

Athlon XP + 2GB DDR1 (!) + R9600 Pro 256MB Core 2 Quad Q8400 @ 3.4ghz + GTX 275 | i5-3570k @ 4.4ghz + GTX 

Link to post
Share on other sites
Posted · Original PosterOP
11 minutes ago, Firewrath9 said:

how about a PCIe extension, then leaving the GPU somewhere else

A RX 550 will barely saturate a 4x lane, let alone 16.

I looked at those but that turns mounting it into a task. Though if I use a sff card and hard adapter I'd only need to mod the bracket.

But then sff and money/shipping time for adapter, easy enough to zip off unnecessary channels with rotory tool.

How do I determine channel saturation from specs?

If the board is PCIe 2 does it require more channels for equal bandwidth compared to PCIe 3?

I'm assuming a HD 5770, gtx650 or r7 360 would all be sub x8.

 

Link to post
Share on other sites
14 minutes ago, aslanshow said:

I looked at those but that turns mounting it into a task. Though if I use a sff card and hard adapter I'd only need to mod the bracket.

But then sff and money/shipping time for adapter, easy enough to zip off unnecessary channels with rotory tool.

How do I determine channel saturation from specs?

If the board is PCIe 2 does it require more channels for equal bandwidth compared to PCIe 3?

I'm assuming a HD 5770, gtx650 or r7 360 would all be sub x8.

 

PCIe 2.0 is 1/2 of 3. 1080 ti requires 8 max, smaller cards would be fine sub 4 PCIe 3.


Beta!  X570 VRM + Features list (PM me if you want to help) 

 

Will prob be making an X570 "tier" list when that is completed.

Some Custom Loop Questions, please help answer them.

 

PC (Main)

 

CPU: i5-8400 CPU Cooler: Cryorig M9 Plus   Motherboard: Gigabyte B360M DS3H | RAM: Crucial Ballistix Sport 2x8 DDR4-2400

 Boot/OS SSD: Inland 480GB SSD | Video Card: RX 570 4GB Strix OC | Case: Fractal Design Meshify C White TG (11/10) PSU: EVGA SuperNOVA G3 750

Monitor: Sceptre 24" 1080p 75hz Webcam: Logitech C920s

 

NAS:

Synology DS418J w/ 4x WD Red Pro 6TB RAID 10 (used 7.3/12TB)

 

Phone/Tablet:

iPhone XR 64GB iPad Mini 4 128GB

 

Laptops:

Dell XPS 15 9570 i7-8750H + 1050 ti + 20GB ram (16+4) + 1TB EX920 SSD

 

My old computers:

Athlon XP + 2GB DDR1 (!) + R9600 Pro 256MB Core 2 Quad Q8400 @ 3.4ghz + GTX 275 | i5-3570k @ 4.4ghz + GTX 

Link to post
Share on other sites

The interesting thing is that in many SLI/CFX motherboards, the second slot is already PHYSICALLY an x8 slot:

 

005.jpg

 

Running a GPU in a physical x8 slot should not be a problem. :)


PC SPECS: CPU: Intel Core i7 3770k @4.4GHz - Mobo: Asrock Extreme 4 (Z77) - GPU: MSI GeForce GTX 680 Twin Frozr 2GB - RAM: Crucial Ballistix 2x4GB (8GB) 1600MHz CL8 + 1x8GB - Storage: SSD: Sandisk Extreme II 120GB. HDD: Seagate Barracuda 1TB - PSU: be quiet! Pure Power L8 630W semi modular  - Case: Corsair Obsidian 450D  - OS: Windows 7

Link to post
Share on other sites
2 hours ago, aslanshow said:

So browsing the Newegg I saw an MSI rx550 aero and it said it was PCIe x16 uses x8. This peaked my interest as I have a PowerEdge 2900 with a PCIe x8 slot that could use a discrete graphics card. My original plan had been to cut the end of the slot and have the GC hang out the back. But a plastic shroud turned that from simple fix to a PIA.

I didn't want to remove functionality from a card by physically removing those channels but if they aren't electrically connected in the first place, no harm.

So the question is are all rx550s using x8?

Are there better or cheaper cards that are electronically limited to x8 PCIe?

I'm not looking to game on it. Just more Gui than it's designed for. Linux compatibility a plus.

Physically altering graphics cards is not recommended. It's a RIP for your warranty (and your card if you mess up). Yes, there are eBay sellers who will hack up a GT 210 to make it PCIe x1, and that's a terrible idea and something I'd never buy when there are PCIe x1 Quadros and NVS cards out there just as powerful.

 

An easier alternative (although also not a great idea) would be to Dremel out the back of your x8 slot, assuming it's not already open to allow larger cards to fit. That way you've got an opening big enough for an x16 card, but only using 8 lanes.


Sabre - i7-8086K - MSI GTX 1070 Gaming X - AsRock Z370 Fatal1ty Gaming K6 - 32GB Crucial Ballistix Sport DDR4-2400 - 250GB Western Digital Black M.2 NVMe PCIe 3.0x4 - 1TB Inland Professional SSD - 960GB SanDisk Ultra II - 4TB Seagate Barracuda - Corsair RM650i - Fractal Design Meshify C White TG - Noctua NH-C14S

 

Senketsu - Ryzen 5 1600 - MSI GTX 1050 Ti LP - Gigabyte B450 AORUS M - 16GB Corsair DDR4-3466 RGB - 256GB ADATA XPG SX6000 Pro - Silverstone SF450 - ABS R206-ITX (worst case ever) - Arctic Alpine AM4

 

Banzai - i7-6700T - Dell OEM GT 730 2GB DDR3 - Gigabyte GA-B150N Phoenix - 16GB HyperX Fury DDR4-2400 - 240GB Crucial M500 - Seasonic 300W Server PSU - HP Slimline s3200n chassis - Rosewill RCX-775-LP

 

Harvey Dent - Pentium G3258 - MSI GTX 750 Ti LP - ASUS H81M-C - 16GB Patriot Viper DDR3-1600 - 480GB SanDisk Ultra II SSD (Windows 10) - Vaseky 64GB mSATA SSD (Windows XP) - Corsair SF600 - Athenatech A100BB - Arctic Alpine 11 Plus

Link to post
Share on other sites
Posted · Original PosterOP
7 minutes ago, TomvanWijnen said:

The interesting thing is that in many SLI/CFX motherboards, the second slot is already PHYSICALLY an x8 slot:

 

005.jpg

 

Running a GPU in a physical x8 slot should not be a problem. :)

I'd describe that as physically x16 but electronically x8. I had seen that cfx and sli only use x8 on the second card so that makes sense. My slot is only x8 long so I have to cut the card down. Just don't want to remove functionality from potential future use. Looks like I should be fine cutting down any cheap second hand card.

Link to post
Share on other sites
5 minutes ago, aslanshow said:

I'd describe that as physically x16 but electronically x8. I had seen that cfx and sli only use x8 on the second card so that makes sense. My slot is only x8 long so I have to cut the card down. Just don't want to remove functionality from potential future use. Looks like I should be fine cutting down any cheap second hand card.

Yeah physically x16 eletronically x8, also correct. :P I personally wouldn't cut into the card, though... I'd try to maybe alter the end of the port (some are already open at the end) so it can stick out - I'm not sure if it would be very happy if you'd cut down the card.


PC SPECS: CPU: Intel Core i7 3770k @4.4GHz - Mobo: Asrock Extreme 4 (Z77) - GPU: MSI GeForce GTX 680 Twin Frozr 2GB - RAM: Crucial Ballistix 2x4GB (8GB) 1600MHz CL8 + 1x8GB - Storage: SSD: Sandisk Extreme II 120GB. HDD: Seagate Barracuda 1TB - PSU: be quiet! Pure Power L8 630W semi modular  - Case: Corsair Obsidian 450D  - OS: Windows 7

Link to post
Share on other sites
Posted · Original PosterOP
16 minutes ago, aisle9 said:

Physically altering graphics cards is not recommended. It's a RIP for your warranty (and your card if you mess up). Yes, there are eBay sellers who will hack up a GT 210 to make it PCIe x1, and that's a terrible idea and something I'd never buy when there are PCIe x1 Quadros and NVS cards out there just as powerful.

 

An easier alternative (although also not a great idea) would be to Dremel out the back of your x8 slot, assuming it's not already open to allow larger cards to fit. That way you've got an opening big enough for an x16 card, but only using 8 lanes.

Yeah, modding the slot was my first plan of attack but there's a pesky plastic shroud which needs to be removed to modify. Removing the shroud involves removing a bunch of other pieces ... So not worried about warranty what precautions might I take? I imagine cutting the traces with a knife before picking up the Dremel might be wise. Measure thrice.

Link to post
Share on other sites
4 minutes ago, aslanshow said:

Yeah, modding the slot was my first plan of attack but there's a pesky plastic shroud which needs to be removed to modify. Removing the shroud involves removing a bunch of other pieces ... So not worried about warranty what precautions might I take? I imagine cutting the traces with a knife before picking up the Dremel might be wise. Measure thrice.

I think a picture of the slot might illuminate the situation.

 

edit: not derp, that was someone else's board. derp


Sabre - i7-8086K - MSI GTX 1070 Gaming X - AsRock Z370 Fatal1ty Gaming K6 - 32GB Crucial Ballistix Sport DDR4-2400 - 250GB Western Digital Black M.2 NVMe PCIe 3.0x4 - 1TB Inland Professional SSD - 960GB SanDisk Ultra II - 4TB Seagate Barracuda - Corsair RM650i - Fractal Design Meshify C White TG - Noctua NH-C14S

 

Senketsu - Ryzen 5 1600 - MSI GTX 1050 Ti LP - Gigabyte B450 AORUS M - 16GB Corsair DDR4-3466 RGB - 256GB ADATA XPG SX6000 Pro - Silverstone SF450 - ABS R206-ITX (worst case ever) - Arctic Alpine AM4

 

Banzai - i7-6700T - Dell OEM GT 730 2GB DDR3 - Gigabyte GA-B150N Phoenix - 16GB HyperX Fury DDR4-2400 - 240GB Crucial M500 - Seasonic 300W Server PSU - HP Slimline s3200n chassis - Rosewill RCX-775-LP

 

Harvey Dent - Pentium G3258 - MSI GTX 750 Ti LP - ASUS H81M-C - 16GB Patriot Viper DDR3-1600 - 480GB SanDisk Ultra II SSD (Windows 10) - Vaseky 64GB mSATA SSD (Windows XP) - Corsair SF600 - Athenatech A100BB - Arctic Alpine 11 Plus

Link to post
Share on other sites
Posted · Original PosterOP
6 minutes ago, aisle9 said:

I think a picture of the slot might illuminate the situation.

 

edit: not derp, that was someone else's board. derp

Yeah, here it is. I probably should just pull the shroud out and mod the slot. I'm just trying to understand my options.

The PCIe x8 is the first black slot above the white pcix slot. There's 3 more physically x8 but wired x4 PCIe slots above that.

155899470072981520865192820000.jpg

Link to post
Share on other sites
2 minutes ago, aslanshow said:

Yeah, here it is. I probably should just pull the shroud out and mod the slot. I'm just trying to understand my options.

The PCIe x8 is the first black slot above the white pcix slot. There's 3 more physically x8 but wired x4 PCIe slots above that.

 

If the shroud can be removed, I'd pull it and Dremel the slot. There are a couple of other options. One, the red OEM $60 RX 460s on eBay have a blank back half of their x16 mount, so you could, if you're incredibly precise and careful, cut the card to a physical x8 in theory. Two, there are low-profile OEM cards out there (and some non-OEM cards) that are low-profile and cut to an X8 slot already. I have an OEM Dell GT 730 in use in an HTPC, and I've got a PNY GT 710 that I use as a test card. I've also seen an EVGA GT 720 with the same design. The downside, of course, is that those cards suck, but it is a zero-risk proposition.


Sabre - i7-8086K - MSI GTX 1070 Gaming X - AsRock Z370 Fatal1ty Gaming K6 - 32GB Crucial Ballistix Sport DDR4-2400 - 250GB Western Digital Black M.2 NVMe PCIe 3.0x4 - 1TB Inland Professional SSD - 960GB SanDisk Ultra II - 4TB Seagate Barracuda - Corsair RM650i - Fractal Design Meshify C White TG - Noctua NH-C14S

 

Senketsu - Ryzen 5 1600 - MSI GTX 1050 Ti LP - Gigabyte B450 AORUS M - 16GB Corsair DDR4-3466 RGB - 256GB ADATA XPG SX6000 Pro - Silverstone SF450 - ABS R206-ITX (worst case ever) - Arctic Alpine AM4

 

Banzai - i7-6700T - Dell OEM GT 730 2GB DDR3 - Gigabyte GA-B150N Phoenix - 16GB HyperX Fury DDR4-2400 - 240GB Crucial M500 - Seasonic 300W Server PSU - HP Slimline s3200n chassis - Rosewill RCX-775-LP

 

Harvey Dent - Pentium G3258 - MSI GTX 750 Ti LP - ASUS H81M-C - 16GB Patriot Viper DDR3-1600 - 480GB SanDisk Ultra II SSD (Windows 10) - Vaseky 64GB mSATA SSD (Windows XP) - Corsair SF600 - Athenatech A100BB - Arctic Alpine 11 Plus

Link to post
Share on other sites
Posted · Original PosterOP
12 minutes ago, aisle9 said:

If the shroud can be removed, I'd pull it and Dremel the slot. There are a couple of other options. One, the red OEM $60 RX 460s on eBay have a blank back half of their x16 mount, so you could, if you're incredibly precise and careful, cut the card to a physical x8 in theory. Two, there are low-profile OEM cards out there (and some non-OEM cards) that are low-profile and cut to an X8 slot already. I have an OEM Dell GT 730 in use in an HTPC, and I've got a PNY GT 710 that I use as a test card. I've also seen an EVGA GT 720 with the same design. The downside, of course, is that those cards suck, but it is a zero-risk proposition.

Nice thanks I'll look into the 460s. I got the shroud out so it's Dremel time. 

Still want to cut down a card though, lol.

15589966051071879746201363236685.jpg

Link to post
Share on other sites
5 minutes ago, aslanshow said:

Nice thanks I'll look into the 460s. I got the shroud out so it's Dremel time. 

Still want to cut down a card though, lol.

 

If you're going to cut down a card, don't risk your mobo. And vice versa, of course.


Sabre - i7-8086K - MSI GTX 1070 Gaming X - AsRock Z370 Fatal1ty Gaming K6 - 32GB Crucial Ballistix Sport DDR4-2400 - 250GB Western Digital Black M.2 NVMe PCIe 3.0x4 - 1TB Inland Professional SSD - 960GB SanDisk Ultra II - 4TB Seagate Barracuda - Corsair RM650i - Fractal Design Meshify C White TG - Noctua NH-C14S

 

Senketsu - Ryzen 5 1600 - MSI GTX 1050 Ti LP - Gigabyte B450 AORUS M - 16GB Corsair DDR4-3466 RGB - 256GB ADATA XPG SX6000 Pro - Silverstone SF450 - ABS R206-ITX (worst case ever) - Arctic Alpine AM4

 

Banzai - i7-6700T - Dell OEM GT 730 2GB DDR3 - Gigabyte GA-B150N Phoenix - 16GB HyperX Fury DDR4-2400 - 240GB Crucial M500 - Seasonic 300W Server PSU - HP Slimline s3200n chassis - Rosewill RCX-775-LP

 

Harvey Dent - Pentium G3258 - MSI GTX 750 Ti LP - ASUS H81M-C - 16GB Patriot Viper DDR3-1600 - 480GB SanDisk Ultra II SSD (Windows 10) - Vaseky 64GB mSATA SSD (Windows XP) - Corsair SF600 - Athenatech A100BB - Arctic Alpine 11 Plus

Link to post
Share on other sites
Posted · Original PosterOP
5 hours ago, aslanshow said:

So browsing the Newegg I saw an MSI rx550 aero and it said it was PCIe x16 uses x8. This peaked my interest as I have a PowerEdge 2900 with a PCIe x8 slot that could use a discrete graphics card. My original plan had been to cut the end of the slot and have the GC hang out the back. But a plastic shroud turned that from simple fix to a PIA.

I didn't want to remove functionality from a card by physically removing those channels but if they aren't electrically connected in the first place, no harm.

So the question is are all rx550s using x8?

Are there better or cheaper cards that are electronically limited to x8 PCIe?

I'm not looking to game on it. Just more Gui than it's designed for. Linux compatibility a plus.

Well there it is. PCIe x8 slot opened up to accept x16 cards. That double card didn't fit, binding up on the motherboard side of the metal bracket. I don't think I'll use this one though, don't want to route the 6 pin PCIe pwr.

Well that was fun.

15590016075596303241234045325569.jpg

15590017162005236207350445348314.jpg

Link to post
Share on other sites
6 hours ago, aslanshow said:

This peaked my interest as I have a PowerEdge 2900 with a PCIe x8 slot that could use a discrete graphics card. My original plan had been to cut the end of the slot and have the GC hang out the back. But a plastic shroud turned that from simple fix to a PIA.I didn't want to remove functionality from a card by physically removing those channels but if they aren't electrically connected in the first place, no harm.

Simple Solution, though cost money and takes a month or so:

https://de.aliexpress.com/item/Gen3-0-PCIe-x8-to-PCIe-x16-Graphics-card-extension-cord-Cable-1ft-2ft-Elbow-Design/32830009575.html

 

And you don't damage anythng.

6 hours ago, aslanshow said:

So the question is are all rx550s using x8?

Yes, limitation of the Chip.

For 2 Reasons:

a) Power Consumption

b) Cost

6 hours ago, aslanshow said:

Are there better or cheaper cards that are electronically limited to x8 PCIe?

You don't need that.

You can put an x16 Card into an x1 Slot, though its not recommended as that really affects it,


So that might enable an RX570/8GiB....

6 hours ago, aslanshow said:

I'm not looking to game on it. Just more Gui than it's designed for. Linux compatibility a plus.

So for Linux, 250% go with AMD!

Avoid nVidia.


"Hell is full of good meanings, but Heaven is full of good works"

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


×