Question My PC won't boot unless I reseat the RAM ?

May 11, 2021
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Hi! Yesterday, I woke up, went to use my computer but unfortunately it didn't boot, it got stuck on the Windows loading screen. Initially I thought it was related to the OS, so I used a recovery drive to try to fix it. When that didn't boot either, I realized it was my RAM, so I removed both sticks and only put one back in, to test it. Seeing that it worked fine, I inserted my second stick and everything went great, I used my PC normally for the whole day.

Today, however, I booted it up again and the same issue happened, but this time I tested each stick and slot individually, they all worked, so I inserted both sticks and it's working now. I'm afraid, however that it might happen again, which is why I'm asking for help, as having to move my sticks around everyday minutes before class is a huge issue. I have updated my BIOS after the issue today, so that might help but I'm not sure.

Something to keep in mind is that while both sticks are the same model, their PCB differ in color (two Crucial CT8G4DFS824A sticks, one being green and the other being black).
NB: I have used been using both together since 2019 and I've never had any issues, so I doubt it's an incompatibility problem:


Memory SPD

\-------------------------------------------------------------------------

​

DIMM # 1

SMBus address 0x50

Memory type DDR4

Module format UDIMM

Module Manufacturer(ID) Crucial Technology (7F7F7F7F7F9B00000000000000)

SDRAM Manufacturer (ID) Micron Technology (2C000000000000000000000000)

Size 8192 MBytes

Max bandwidth DDR4-2401 (1200 MHz)

Part number CT8G4DFS824A.M8FH3

Serial number E0924FF6

Manufacturing date Week 44/Year 17

Nominal Voltage 1.20 Volts

EPP no

XMP no

AMP no

JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency

JEDEC #1 10.0-10-10-24-34 @ 727 MHz

JEDEC #2 11.0-11-11-26-37 @ 800 MHz

JEDEC #3 12.0-12-12-28-40 @ 872 MHz

JEDEC #4 13.0-14-14-31-44 @ 945 MHz

JEDEC #5 14.0-14-14-33-47 @ 1018 MHz

JEDEC #6 15.0-15-15-35-50 @ 1090 MHz

JEDEC #7 16.0-16-16-38-54 @ 1163 MHz

JEDEC #8 17.0-17-17-39-55 @ 1200 MHz

JEDEC #9 18.0-17-17-39-55 @ 1200 MHz

JEDEC #10 19.0-17-17-39-55 @ 1200 MHz

JEDEC #11 20.0-17-17-39-55 @ 1200 MHz

JEDEC #12 21.0-17-17-39-55 @ 1200 MHz

​

DIMM # 2

SMBus address 0x52

Memory type DDR4

Module format UDIMM

Module Manufacturer(ID) Crucial Technology (7F7F7F7F7F9B00000000000000)

SDRAM Manufacturer (ID) Micron Technology (2C000000000000000000000000)

Size 8192 MBytes

Max bandwidth DDR4-2401 (1200 MHz)

Part number CT8G4DFS824A.C8FE

Serial number E2E2B6F9

Manufacturing date Week 30/Year 19

Nominal Voltage 1.20 Volts

EPP no

XMP no

AMP no

JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency

JEDEC #1 10.0-10-10-24-34 @ 727 MHz

JEDEC #2 11.0-11-11-26-37 @ 800 MHz

JEDEC #3 12.0-12-12-28-40 @ 872 MHz

JEDEC #4 13.0-14-14-31-44 @ 945 MHz

JEDEC #5 14.0-14-14-33-47 @ 1018 MHz

JEDEC #6 15.0-15-15-35-50 @ 1090 MHz

JEDEC #7 16.0-16-16-38-54 @ 1163 MHz

JEDEC #8 17.0-17-17-39-55 @ 1200 MHz

JEDEC #9 18.0-17-17-39-55 @ 1200 MHz

JEDEC #10 19.0-17-17-39-55 @ 1200 MHz

JEDEC #11 20.0-17-17-39-55 @ 1200 MHz

JEDEC #12 21.0-17-17-39-55 @ 1200 MHz


For those wondering, this is my parts list:

PCPartPicker Part List

Type|Item|Price
:----|:----|:----
CPU | Intel Core i3-8100 3.6 GHz Quad-Core Processor | $396.98 @ Amazon
Motherboard | ASRock H310M-DGS Micro ATX LGA1151 Motherboard |-
Memory | Crucial 8 GB (1 x 8 GB) DDR4-2400 CL17 Memory | $43.99 @ B&H
Memory | Crucial 8 GB (1 x 8 GB) DDR4-2400 CL17 Memory | $43.99 @ B&H
Storage | Seagate BarraCuda Compute 250 GB 2.5" Solid State Drive |-
Storage | Samsung Spinpoint F1 DT 750 GB 3.5" 7200RPM Internal Hard Drive |-
Storage | Seagate BarraCuda 1 TB 3.5" 7200RPM Internal Hard Drive | $45.95 @ Walmart
Video Card | GALAX GeForce GTX 1060 6GB 6 GB OC Video Card |-
Case | Corsair SPEC-05 ATX Mid Tower Case | $64.99 @ Corsair
Power Supply | Corsair CX (2017) 450 W 80+ Bronze Certified ATX Power Supply | $54.99 @ Corsair
Operating System | Microsoft Windows 10 Pro OEM 64-bit | $139.88 @ Other World Computing
| Prices include shipping, taxes, rebates, and discounts |
| Total | $790.77
| Generated by PCPartPicker 2021-05-11 10:03 EDT-0400 |
 
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