ASUS P6T SE model with X5675 memory problems Issues may involve RAM stability or performance concerns.
ASUS P6T SE model with X5675 memory problems Issues may involve RAM stability or performance concerns.
Hello, I set up the xenon X5675 today and am experiencing some RAM problems. If anyone has advice, I’d really value it. I swapped my i7-920 for the xeon x5675, and the system starts fine but in BIOS and Windows only shows 8GB of RAM available. In Task Manager, usable RAM is listed as 8GB, while committed RAM appears at 16GB—whatever that means. My setup looks like: MB: P6T SE RAM: 4x 4GB CPU: xenon x5675 CPU-Z reports RAM correctly. The manual says I should use a 4DIMM configuration, and I noticed only the B1 and C1 RAM slots are lighting up.
I found a fix just a few minutes after writing this. I took out the RAM from slots B1 and C1, but the system wouldn’t boot with the remaining sticks on A2 and A1. The issue was resolved by putting all four sticks in B2, B1, C2, and C1. I’m aware this isn’t following the manual, but I think the xenon processor has a different layout or pin configuration that doesn’t use A2 and A1 properly.
Yes, CPU-Z displays your system configuration, including whether it uses dual-channel or triple-channel memory support.
CPU-Z displayed triple channel and 16GB RAM, but Windows and the BIOS disagreed. I resolved the issue using the method I described in my earlier post.
You referred to utilizing slots B1/B2 and C1/C2 while keeping the entire channel vacant, indicating a switch from Triple Channel to Dual Channel.
Your board features three channels, each with six slots, two slots per channel (like older models such as x58). Boards with four slots are typically dual-channel, holding two slots per channel. Consumer boards like x470-z390 usually have eight slots, offering a quad-channel setup with two slots per channel. Workstation models such as x299-x399 often use eight slots and provide triple-channel performance. The number of RAM sticks isn't crucial up to a certain point—for example, three sticks in a four-slot board don't equate to triple-channel operation.
I see, now that I realize the dual channel setup makes sense, I understand your point. It seems unlikely I could switch back to triple channel with this specific processor and motherboard.
I will summarize this for future reference. I used an i7-920 on an ASUS P6T SE motherboard with triple-channel RAM installed in slots A2, A1, B1 and C1. After installing the XEON X5675, the RAM in slots A2 and A1 disappeared from Windows and BIOS, but CPU-Z detected them correctly. I checked by removing the RAMs in slots B1 and C1; the PC stopped working entirely. This led me to figure out that slots A2 and A1 weren’t recognized by the system. Eventually, I repositioned all my RAM sticks to slots B2, B1, C2 and C1. Now everything works properly. If anyone has advice on this issue, please share.