Posted: Thu May 15, 2025 22:18 Post subject: anyone ever tested or owned a realtek onboard RTL8168/8111 ?
I have upgraded my isp speed to 1Gbps but I am only getting about 400 down.
I ran the modem straight to the computer and got the same result.
Could the onboard nic not be up to the task?
I noticed over the years that things rated 1Gbps turned out to not be able to do the advertised speeds as time and ISP speeds increased.
I have a sabertooth 990fx rev 1 with a onboard RTL8168/8111 PCI-E Gigabit. Its baked into the motherboard.
I was wondering if anyone even benched one like this before and had the same result. Unfortunately I dont have any other device to test I plan on buying a TP-Link 2.5GB PCIe Network Card (TX201).
I had this same motherboard several years ago and I never had this issue. I would guess it's the Windows driver, assuming you are running Windows, since you didn't specify. Mine only ever had Linux installed and performed exactly has it should have.
Side story, my Sabertooth motherboard got toasted by raccoons. I had left a window opened in my garage and they got in and literally pissed on it (I had the top off for maintenance). It was very corrosive and literally lifted the circuit traces from the MB and a few PCI cards that were installed, by the time I discovered it. _________________ - Linksys EA8500: I-Gateway, WAP/VAP 5ghz only. Features: VLANs, Samba, WG, Entware - r60xxx
- Linksys EA8500: 802.11s Secondary w/VLAN Trunk over 5ghz - r60xxx
- Linksys MX4300: 802.11s Primary w/VLAN Trunk over 5ghz. 2.4ghz WAP/VAP only - r60xxx
- Linksys MX4300: (WAP/VAP (7)) Multiple VLANs over single trunk port. Entware/Samba r60xxx
- Linksys MR7350: WDS Station for extended Ethernet r60xxx
- Linksys MR7500, MX8500: None in production. Just testing. r60xxx
- OSes: Fedora 40, 10 RPis (2,3,4,5), 23 ESP8266s: Straight from Amiga to Linux in '95, never having owned a Windows PC.
- Forum member #248
I had this same motherboard several years ago and I never had this issue. I would guess it's the Windows driver, assuming you are running Windows, since you didn't specify. Mine only ever had Linux installed and performed exactly has it should have.
Side story, my Sabertooth motherboard got toasted by raccoons. I had left a window opened in my garage and they got in and literally pissed on it (I had the top off for maintenance). It was very corrosive and literally lifted the circuit traces from the MB and a few PCI cards that were installed, by the time I discovered it.
thanks for the reply. man that sucks. animal urine will kill boards and even pistons and cylinders its super corrosive.
you had the first version with the green heatsinks?
I have a pretty recent realtek driver from 2022
7.154.1014.2022
you had the first version with the green heatsinks?
I have a pretty recent realtek driver from 2022
7.154.1014.2022
I honestly don't remember the color of the heatsinks, plus my eyes are color deficient and green is one of those colors.
You could always boot to a Live Linux Distribution and check it with Linux drivers. I would recommend Fedora. _________________ - Linksys EA8500: I-Gateway, WAP/VAP 5ghz only. Features: VLANs, Samba, WG, Entware - r60xxx
- Linksys EA8500: 802.11s Secondary w/VLAN Trunk over 5ghz - r60xxx
- Linksys MX4300: 802.11s Primary w/VLAN Trunk over 5ghz. 2.4ghz WAP/VAP only - r60xxx
- Linksys MX4300: (WAP/VAP (7)) Multiple VLANs over single trunk port. Entware/Samba r60xxx
- Linksys MR7350: WDS Station for extended Ethernet r60xxx
- Linksys MR7500, MX8500: None in production. Just testing. r60xxx
- OSes: Fedora 40, 10 RPis (2,3,4,5), 23 ESP8266s: Straight from Amiga to Linux in '95, never having owned a Windows PC.
- Forum member #248
In the absence of someone having same Asus Sabertooth 990FX motherboard (released 2011), I would first try a different Ethernet cable.
If that does not move the needle, I'd suggest get a PCI-e Ethernet Adapter card and connect through this card. It's around US$10.
Again if it does not change the speed for your connection, the bottle neck is likely from your ISP modem/router to the street.
(Assuming you already turned off the modem/router for a minute, then turned it on again. After the change to 1Gb connection). Good luck. _________________ Netgear XR700 Gateway, Clock 2000MHz, DNSMasq
IPv4, MAC-tied Lease & DHCP
SPI Firewall, QoS (HFSC/SFC priorities set on various MAC, Netmask & Interface)
OpenVPN Client
Port Forwarding of Net-incoming traffic to specific devices on network
WLAN0/5GHz- DD-WRT, AC/N Mixed, Wide 40MHz, Beacon/DTIM interval 300/2, ACK Timing 3160, WPA2/WPA3 w/AES
WLAN1/2.4GHz- DD-WRT, N/G Mixed, Full 20MHz, Beacon/DTIM interval 400/2, ACK Timing 3150, WPA2 w/AES
10Gb SFP+ connected (via Optical Cable for minimal heat) to MikroTik RB5009UG+S+IN running WireGuard Server.
Network separation
* Private network (vlan1, wlan0, wlan1)
* Guest (wlan0.1)
* IoT (wlan1.1)
Certain Ethernet ports on a separate VLANS & placed on bridge for stability
thanks for the replies, I tried straight to the computer from the coda56 and no change. that was a new cat6 cable. I'm trying to determine if the ISP is not giving me the adverstised speeds I was promised, 1Gbps.
I also see my ping is all over the place
D.F.Cruizer wrote:
In the absence of someone having same Asus Sabertooth 990FX motherboard (released 2011), I would first try a different Ethernet cable.
many many boards had the realtek 8111E or similar variant.
I'm wondering if its like some routers rated 1Gb speeds that turned out the lan to wan was more like 300-400 range.like the DIR655 was gigabit but in reality couldn't come close to gigabit speeds
