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Tell us about the motherboard -
- What model board and manufacturer,
- does it have the latest bios,
- what memory it supports,
- what is the speed of the memory,
- is the 7640x supported,
- etc?
Also, here are the two processors compared.
https://ark.intel.com/content/www/us/en/ark/compare.html?productIds=189122,121500
Doc
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I replaced 3 motherboards for my child the first was asrock X299M Extreme4 second asrock X299 Extreme4 and the last one Gigabyte X299 UD4 Pro. I was thinking the problem is with asrock motherboards because these memory sticks was working fine in my main pc ROG RAMPAGE VI EXTREME OMEGA so i go for gigabyte and again the same problem. The last thing i done just instal my main cpu 9800x to that gigabyte mobo and all 4 rams start working fine. In 7640x cpu memory specifications says Max # of Memory Channels 2 Is it means just 2 sticks can be used?
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You did not answer my questions.
Doc
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What model board and manufacturer - GIGABYTE X299 UD4 Pro
does it have the latest bios - not sure but asrock had
what memory it supports - Support DDR4 up to 4400(O.C.)
what is the speed of the memory -3200MHz HyperX HX432C16PB3K4/16
is the 7640x supported - Yes
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Drop the speed of the memory to 2666. Make sure the board has the latest bios. I am not concerned with the asrock board.
Also, you may want to try different, lower speed, memory.
Doc
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I will update my bios tomorrow and will see how it goes. I will tell you if that helps. Thank you
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Thanks again today I done bios update and finally all works fine :)
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glad you have it working.
Doc
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Most i5 motherboards support 4 sticks of DDR4, but in a dual-Channel configuration. This means that the CPU reads from 2 memory sticks at a time. In a quad channel setup, the CPU will read from 4 sticks of memory at a time. Each stick provides 64 bits of data to the CPU. So, you can see that a quad-channel CPU will require more pins than a dual channel. This is why CookieMania66 pointed out that this is not a feature of most desktop CPUs. What is your application ? Most games are GPU bound, not CPU bound, so most of us spend money on our GPUs.
--
Lewis
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