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jordanpang0806

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Sep 22, 2017
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Hey guys. So I had my motherboard fried recently through a power outage so I had to buy a new EXACT one online. I sent the computer along with the motherboard to a computer fixing service to have it installed and tested. The tech guy told me that my processor was also damaged by the power outage,and told me to get a new one. So I got my computer back today and decided to do some troubleshooting myself with the boot guide featured here.At first,the computer starts but keeps rebooting at random times of the startup process. I managed to have it fixed by changing the ram slots from a 11__ arranging pattern to a 1_1_ arranging pattern (4 memory slots) and the PC finally boots into desktop without shutting down and seemed like the problem was fixed. The weird thing is,when the computer was working fine before having the mobo fried,the ram was arranged 11__ not 1_1_. Why did it work before?? Or did I recall wrongly? I made this thread because I was really confused and is curious to know why. Sorry for the long post and thanks for reading.
 
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Aeacus
Care to share your MoBo make and model so we can look up the RAM channels on your MoBo?

RAM channels on MoBo are usually placed in one of the two following ways:
Slot 1 - Channel A
Slot 2 - Channel A
Slot 3 - Channel B
Slot 4 - Channel B
or
Slot 1 - Channel A
Slot 2 - Channel B
Slot 3 - Channel A
Slot 4 - Channel B

If the Slot 1 & 2 are populated then at 1st configuration, the RAM runs in single-channel, despite you have 2x sticks of RAM. In 2nd configuration, RAM will run in dual-channel since you have one stick in Channel A and another stick in Channel B.

My MSI Z97 and MSI Z170A MoBos (Haswell and Skylake builds) have RAM channel layout in 2nd configuration.

Oh, do note that over time, RAM slots can die on MoBo and you can't use...
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Aeacus

Aeacus

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Mar 21, 2015
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Care to share your MoBo make and model so we can look up the RAM channels on your MoBo?

RAM channels on MoBo are usually placed in one of the two following ways:
Slot 1 - Channel A
Slot 2 - Channel A
Slot 3 - Channel B
Slot 4 - Channel B
or
Slot 1 - Channel A
Slot 2 - Channel B
Slot 3 - Channel A
Slot 4 - Channel B

If the Slot 1 & 2 are populated then at 1st configuration, the RAM runs in single-channel, despite you have 2x sticks of RAM. In 2nd configuration, RAM will run in dual-channel since you have one stick in Channel A and another stick in Channel B.

My MSI Z97 and MSI Z170A MoBos (Haswell and Skylake builds) have RAM channel layout in 2nd configuration.

Oh, do note that over time, RAM slots can die on MoBo and you can't use that specific RAM in that slot anymore or the entire slot becomes unusable. Though, MoBo usually works fine when some of it's RAM slots are dead.
 
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