Razzee
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It was the firewall (Kaspersky's). Thank you kindly.
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PC1 (Windows 11): PC2 (Windows 10: PC1 can access PC2, PC2 cannot access PC1 at all (via Network or Crossover). It simply says that "O Windows não pode localizar \\192.168.0.17. Verifique a ortografia e tente novamente". "Windows cannot locate (IP or PC name)" Check the ortography and try again." If I type the name of the PC (Zweitestock), it cannot be found either. I have set all permissions (folder) to "Everyone". Also:
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Certainly. One ends with 17, the other 18. I made sure that no other device in the network uses the same IP.
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The domestic standard today is still 1 Gbps, so my switches and router are 1 Gbps-compliant. I found these three 2.5 Gbps Ethernet cards at Shopee, but to make use of them I had to connect my computers directly. I said "Crossover", but it's not like I did anything out of ordinary. I just used a normal cable and set a fixed IP for each Ethernet adapter. Both folders have their own shortcut (Crossover and Network): The issue is that I can connect PC1 to PC2, but PC2 is unable to access PC1. I don't know why. It says the folder is invalid. PC1 is using Windows 11, PC2 has Windows 10.
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Changing a bit the subject, I managed to connect two computers via Crossover cable. PC1: Realtek RTL8125B PC2: Intel I-225V Transfer speed via Network (1 Gbps): 105 MB/s * 8 = 840 Mbps Transferring via Crossover cable (2.5 Gbps): 159 MB/s * 8 = 1272 Mbps While I think it is working, since it broke the barrier of Gigabit, I wish it could go further than that...
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I'll look into that. But why would they make Gigabit Ethernet controllers using PCI slots? I imagine that many customers would complain a lot about the speeds, mostly people who keep a server running. Perhaps a motherboard with a single PCI slot, such as the Gigabyte GA-B75M-D3P, does not limit the speeds.
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As I said several times, it has nothing to do with that. These are the speeds with a PCI-E 2.5 Gbps Ethernet adapter: However, I need to use both PCI-E slots for another component, which is not an Ethernet card.
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The problem is... both. The download speeds on the system as well as transfer speeds, both are being limited for some reason. I'm constantly transfering MP4 videos (gameplay) between PCs, so I leave only one uploading to YouTube at night. The download speeds (SpeedTest) you already know. This is the max speed between PCs: From a Lexar NM620 1 TB (i7-3770) to a Hikvision C100 480 GB (i5-3570), through the PCI Gigabit Ethernet adapter. 64 MB/s is roughly 512 Mbps, exactly half of 1024 Mbps. It should be transferring at 128 MB/s. The speeds are the same, regardless if both PCI slots are populated or not.
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This is not even relevant, since I'm running SpeedTest. In any case, the operating system is installed on a SATA SSD (Hikvision C100 480 GB). Since the speeds have not improved at all, I will use both PCI slots again.
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I have each one of those cards now installed in a different motherboard: 1. Gigabyte GA-B75M-D3H (Rev. 1.0); 2. Gigabyte GA-Z68XP-UD3 (Rev. 1.3). Although the Ethernet cards are the only component occupying the PCI slot, the speeds did not improve! Are the speeds limited per slot even if I don't use both at the same time? Sucks... https://i.imgur.com/R3nsuJf.png
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Hi. I have until tomorrow to pay for the network cards. I applied a coupon, which "nullified" the taxes. Are these cards good, or should I skip them and get a 10 Gbps (it's PCI-E x8 though) instead? The value includes taxes, free shipping. I intend to keep two to myself and sell the other one. Unfortunately, if you look for "model X issues", there is not a single model you cannot find a thread about. I intend to make my PCs "future-proof". Also, I have an issue with the onboard NIC (RTL8111E). Basically, while I'm transferring files between PCs, it's impossible to use the network, even if the transfer speeds are lower than the controller capacities. I'm not sure if an offboard controller would help
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Being more realistic, which one of the following is better? [1] [2]
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At least I learned something today: how to interprect this page of the manual. I highly doubt that motherboards meant to be used in servers have this limitation, but who knows. Is it safe to assume that the PCI-E x1 slots do not share the bandwidth? At least, they are depicted individually instead of bundled together.
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Now that I think about it, this makes a lot of sense. But why no motherboard manufacturers specify this publicly? For example, there's always a reminder that the PCI-E x8 slot shares bandwidth with the PCI-E x16 slot. Gigabyte GA-Z68XP-UD3 (Rev. 1.3) - "Specifications" Below "PCI slots", there is nothing. Now, this is not the same motherboard I mentioned before, but I had to use it as an example instead of the B75. If you visit the GA-B75M-D3H's page, there's also nothing below "PCI slots". Is it not important? It could piss off the wrong customer... Of course, that's all a thing of the past, since no motherboard nowadays feature PCI slots. In any case, I noticed that both Marvell's SATA ports share the bandwidth, despite the page saying nothing. You can read my thread here. If all PCI slots share the same bandwidth, in the sense that using both halves the maximum I/O, would it not be specified on the page? I tested by moving a movie file, so it is a big file instead of several small files, and the speed seems bottlenecked as well: 70,8 MB/s is a number very close to half of 133 MB/s. So that's it, unfortunately. Despite the motherboard having several expansion slots, it's just a marketing gimmick since they share the same bandwidth.
