steve2563

Hey everyone, looking for replacing the MediaTek MT7921 WiFi card in my Legion 5 2021 with AX200. Attached pictures of the MT7921 and the laptop interface. Question is: do i need the NGFF / NGW or the MHW version? Thanks, steve

It was my first thought, but as I wrote, the other stick is not producing errors. Thanks anyway. Update: It seems my kit needs GDM or 2T for anything above 3466.

Hello everyone, Update: Both sticks run fine, but with GDM on above 3466. It's strange, because it's B-die. ------- Original post below: Setup: 5600x Asus Strix B550-F WiFi 2x8GB Patriot Viper Steel 4400c19 Corsair RM750x Problem: When testing my memory sticks one-by-one, the "good" stick doesn't produce any errors, neither in A2 nor B2. The "bad" stick however, only good in A2 (but then it rocks 3600c16-16-16-36-GdmOff-1t). When placed in B2, it drops errors instantly in Tm5, Karhu, memtest86, regardless of timings, voltages, CAD, Rtt-values. Cleaned the gold plates gently with isopropyl alcohol, no luck. Windows 10 freshly installed, updated, drivers are the latest. BIOS is the newest, 2401 beta. Tried downgrading it to the latest stable, still no luck. Defaults loaded, Pbo turned off, only the primaries changed to loose, 3600-18-20-20-40. The sticks run error-free in my B450 Gaming Pro Carbon Ac with the same CPU. (one-by-one or dual-channel, no errors) Wrapping it up: one of my memory sticks produces errors in a specific DIMM slot only. If someone has any idea, why this happens, please, don't hold back. Thanks, Steve

Zen 2 is a totally different design. As of wikipedia: Zen: The memory, PCIe, SATA, and USB controllers are incorporated into the same chip(s) as the processor cores. This has advantages in bandwidth and power, at the expense of chip complexity and die area. Zen 2: Zen 2 moves to a multi-chip module design where the I/O components of the CPU are laid out on its own, separate die, which is also called a chiplet in this context. https://community.amd.com/t5/processors/low-memory-write-speed-zen2-3700x/td-p/51401 This is pretty much an expected result. The link between the Core die and IO die only writes at 16B/cycle, so you will see half the bandwidth that the 2000/1000 series hand. Also, because the IO and core dies are now separate, there is added latency when communicating with RAM, as the signal now has to pass from the core die to the IO die, and then to memory. All the single chiplet Ryzen 3000 series chips have this lower write speed. The double chiplet versions (3900X and 3950X) are not affected, as they have two chiplets which can pass data to the IO die simultaneously. In reality, this won't really affect performance much, as the 3000 series double the available L3 cache to compensate for the higher memory latency. The system will read/write from RAM far less often, so you have a net performance gain. Edit: @Maquak, make sure that you have the latest chipset drivers installed.

Ryzen 3800x is a single-CCD CPU. That's why you see the write bandwidth halved.

Can I ask you what is your mem frequency and Fclk? Check your SOC voltage in Bios, try setting it to 1.1 V. If it doesn't help, try 1.15 V. Playing with CCD and IOD voltages can also help. Mine is set to 1.05 V both. This helped me to get rid of cache hierarchy errors and getting stable memory settings with 5600x.

Thanks everyone

Hello everyone, Looking for some tips on cooling the VRM area of a 1080ti Turbo with Accelero Xtreme III. Attached a picture of the area and the heatsink, because I don't know if these can be "bridged" with the aluminium heatsinks, because some capacitors are in between them. The little heatsinks hang out too, touching the caps. Thanks, Steve

Hey everyone, Is the "IMC Smackdown" test is still the 6. test in memtest (Block move, 64 moves)? I mean - since this guide was written - the order of the test still the same, just like in 2017? Thanks in advance

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