Hardware – RAM & MB

Boot failures, memory errors, BIOS issues, POST codes.

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RAM Not Detected? Try These Fixes in Order

Your PC won't boot or shows less RAM than installed? Start with a simple reseat—then check slots, cl...

Beginner 30 views May 27, 2026

Mismatched RAM sticks crashing your PC? Here's the fix.

Random crashes when using mixed RAM sticks? It's likely mismatched speeds, timings, or dual-channel ...

Intermediate 20 views May 27, 2026
0d (ASUS Q-Code)

Motherboard POST code 0d on ASUS Z790: the fix that works

Code 0d on ASUS Z790 boards usually means a stuck memory training loop. The real fix is clearing CMO...

Intermediate 12 views May 26, 2026

RAM not detected after motherboard swap — what went wrong

Swapped motherboards and now RAM isn't recognized. The fix is usually reseating the sticks or cleari...

Intermediate 17 views May 26, 2026

RAM not running at rated speed – XMP/DOCP fix

RAM stuck at 2133MHz? That's the JEDEC default. XMP/DOCP in BIOS is the fix. Here's how to set it ri...

Intermediate 29 views May 26, 2026
Q-Code 55 / DRAM LED

DRAM Light Stays On? Here's What Actually Fixes It

The DRAM light on your motherboard means memory isn't detected or working. Most fixes are simpler th...

Intermediate 17 views May 26, 2026

RAM Module Not Detected on New Build – Fix

New build won't POST or PC beeps at boot? RAM module not detected. Usually a dirty pin or slack latc...

Beginner 16 views May 26, 2026

RAM Installed But Not Detected – BIOS Fix That Works

Your PC boots but shows less RAM than installed? The fix is reseating sticks and checking BIOS setti...

Beginner 19 views May 26, 2026

PC Beeps on Boot but No Display? Here's the Fix

RAM or motherboard issue causes beeps and black screen. Check reseating RAM, clearing CMOS, or testi...

Beginner 13 views May 26, 2026
AMI BIOS 3 long beeps

PC Beeps 3 Times Then Stops – No Display Fix

Three long beeps from your PC? That's AMI BIOS telling you your RAM isn't working. I'll walk you thr...

Beginner 54 views May 26, 2026
Q-Code 53

Stuck at Q-Code 53 on ASUS Z690/Z790: Memory Initialization Failed

ASUS boards with DDR5 often hang on Q-Code 53. This means the CPU's memory controller can't talk to ...

Intermediate 11 views May 26, 2026

Motherboard RAM Slot Not Working? Here's the Real Fix

A dead RAM slot is usually a bent CPU pin or bad memory channel. Don't replace the board until you c...

Intermediate 11 views May 26, 2026

PC won't boot after installing new RAM — common fixes

Your PC won't POST after a RAM upgrade. Here's what's actually happening and how to fix it without R...

Intermediate 15 views May 26, 2026

PC Won’t Boot After RAM Upgrade – Fix Fast

RAM upgrade causing boot failure? Usually it’s a seating issue or BIOS incompatibility. We’ll walk t...

Beginner 13 views May 26, 2026
55

RAM Error Code 55 on ASUS Motherboards – Fix It

Error code 55 on ASUS boards means RAM isn't detected. I've seen this after a BIOS update, a bad ove...

Intermediate 65 views May 26, 2026

PC won't boot after RAM upgrade? Try these 3 fixes

New RAM sticks installed, but your PC won't start? This guide walks you through three fixes: reseat ...

Beginner 14 views May 25, 2026

RAM Not Running at Rated Speed – Fix the Real Cause

Your 3200 MHz RAM is stuck at 2133 MHz because XMP is off or the CPU memory controller can't handle ...

Intermediate 18 views May 25, 2026

Unexpected memory timings after enabling XMP on ASUS Z790 boards

XMP profile sets aggressive timings that your kit can't actually run. The board silently falls back ...

Intermediate 15 views May 25, 2026

RAM Upgrade Triggers Boot Loop After Installing New Sticks

Installing new RAM can cause a boot loop if the motherboard can't handle the kit's specs. The fix is...

Intermediate 16 views May 25, 2026

RAM Not Seated Properly Fix – Boot Beeps & No Display

Your PC beeps and shows nothing on screen? Most likely RAM is loose. Here’s how to reseat it in 5 mi...

Beginner 16 views May 25, 2026

RAM Not Seated Properly: What to Check First

Your PC won't boot, beeps, or shows weird errors? Most likely RAM isn't fully seated. Here's how to ...

Beginner 15 views May 25, 2026

Motherboard DRAM LED stuck on after RAM swap

Your motherboard's DRAM LED stays lit even though RAM is seated properly. This usually means the boa...

Intermediate 15 views May 25, 2026

RAM Not Detected? Check Your CPU Cooler Mount Pressure First

A tight CPU cooler can bend the motherboard just enough to kill RAM slots. Loosening and retorquing ...

Intermediate 13 views May 25, 2026
POST beep codes (1 long, 2 short or 3 long)

RAM Not Detected: Quick Fix for Common Boot Errors

RAM not detected? I've seen this dozens of times. First reseat the sticks, then try single-slot boot...

Beginner 19 views May 25, 2026