F5F Stay Refreshed Hardware Desktop Issue not identified regarding RAM compatibility or a defective motherboard.

Issue not identified regarding RAM compatibility or a defective motherboard.

Issue not identified regarding RAM compatibility or a defective motherboard.

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xl97
Member
104
12-12-2020, 12:38 AM
#1
Hey there! I recently assembled my own PC and ran into some tricky issues with the RAM slots. When I try to put the RAM in DIMMA2 and DIMMB2, the system won't start properly, even though the BIOS says it should boot. The CPU LED lights up, but I can't access the BIOS and see anything except a black screen. The RAM works fine on its own in DIMMA2, but when I try to install them in DMMA1 and DMMA2, it still doesn’t boot. I’ve got the sticks in both slots now, though sometimes Windows shows different speeds—some say 1799MHz, others 3600MHz. The manual says overclocking to 3600MHz from BIOS, but I’m confused why it doesn’t work. Are those DIMMA1 and DIMMB2 slots damaged? What are the risks of using DIMMA1 and DIMMA2 together? My setup is Windows 10 Pro with an AMD Ryzen 5 5600X, 6-core RAM, and a TOMAHAWK motherboard. I ran TM5 both ways—no errors when using both sticks in DIMMA slots, but it failed with one stick each. This guide about TestMem errors helped a bit, though it’s a bit confusing to follow.
X
xl97
12-12-2020, 12:38 AM #1

Hey there! I recently assembled my own PC and ran into some tricky issues with the RAM slots. When I try to put the RAM in DIMMA2 and DIMMB2, the system won't start properly, even though the BIOS says it should boot. The CPU LED lights up, but I can't access the BIOS and see anything except a black screen. The RAM works fine on its own in DIMMA2, but when I try to install them in DMMA1 and DMMA2, it still doesn’t boot. I’ve got the sticks in both slots now, though sometimes Windows shows different speeds—some say 1799MHz, others 3600MHz. The manual says overclocking to 3600MHz from BIOS, but I’m confused why it doesn’t work. Are those DIMMA1 and DIMMB2 slots damaged? What are the risks of using DIMMA1 and DIMMA2 together? My setup is Windows 10 Pro with an AMD Ryzen 5 5600X, 6-core RAM, and a TOMAHAWK motherboard. I ran TM5 both ways—no errors when using both sticks in DIMMA slots, but it failed with one stick each. This guide about TestMem errors helped a bit, though it’s a bit confusing to follow.

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Dxnni
Junior Member
35
12-12-2020, 08:15 AM
#2
Hello, AMD currently doesn't provide support for 4000 ohm dimensions from G.Skill. See the support list for details. DDR stands for Double Data Rate, meaning data is transferred twice per clock cycle. Setting a clock speed of 3200 MHz for DDR RAM is wrong because it's actually clocked at 1600 MHz and delivers 3200 MT/s. Some manufacturers do this simply because it sounds easier, while most people are familiar with MHz but not with MT/s.
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Dxnni
12-12-2020, 08:15 AM #2

Hello, AMD currently doesn't provide support for 4000 ohm dimensions from G.Skill. See the support list for details. DDR stands for Double Data Rate, meaning data is transferred twice per clock cycle. Setting a clock speed of 3200 MHz for DDR RAM is wrong because it's actually clocked at 1600 MHz and delivers 3200 MT/s. Some manufacturers do this simply because it sounds easier, while most people are familiar with MHz but not with MT/s.

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YOLOGAMER109
Member
229
12-13-2020, 04:44 PM
#3
Yes, the RAM is from the same kit.
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YOLOGAMER109
12-13-2020, 04:44 PM #3

Yes, the RAM is from the same kit.

C
209
12-15-2020, 07:54 AM
#4
Both RAM cards match and belong to the same package.
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CaptainFurioux
12-15-2020, 07:54 AM #4

Both RAM cards match and belong to the same package.

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miner3378
Member
248
12-15-2020, 06:51 PM
#5
The current BIOS version is 7C84v1B, released at the end of last month.
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miner3378
12-15-2020, 06:51 PM #5

The current BIOS version is 7C84v1B, released at the end of last month.

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ORIGUAY
Member
64
12-16-2020, 06:18 AM
#6
I have the most recent bios.
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ORIGUAY
12-16-2020, 06:18 AM #6

I have the most recent bios.

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Roe56
Member
102
12-16-2020, 01:58 PM
#7
Have you attempted resetting the CMOS and testing the RAM without XMP settings or overclocking?
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Roe56
12-16-2020, 01:58 PM #7

Have you attempted resetting the CMOS and testing the RAM without XMP settings or overclocking?

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Lucky023
Junior Member
15
12-16-2020, 03:03 PM
#8
They didn’t respond until after you included extra details in your post.
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Lucky023
12-16-2020, 03:03 PM #8

They didn’t respond until after you included extra details in your post.

1
111carys111
Posting Freak
832
12-17-2020, 12:50 PM
#9
It advises using PassMark Memtest86 to check RAM modules one by one.
1
111carys111
12-17-2020, 12:50 PM #9

It advises using PassMark Memtest86 to check RAM modules one by one.