techiners: ASUS ROG Strix G531GT RAM Upgrade: 24GB (8GB + 16GB) Tested - Performance, Compatibility & Benchmarks (2026)

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Upgrading the ASUS ROG Strix G531GT to 24GB RAM - 8GB + 16GB Combo Tested [2026 Guide]

If you’re still gaming on the with 8GB RAM in 2026, you’ve probably hit the wall. Stutters in Warzone, Chrome eating all your memory, and "Out of RAM" warnings in Premiere.

I was in the same spot. So I upgraded my G531GT to 24GB using a 1x8GB + 1x16GB DDR4 2666MHz combo instead of buying a new laptop. Total cost: ₹5500.

Here’s everything you need to know: specs, channels, performance, installation, and whether this mismatched setup is actually worth it.

⚡ Quick Parts Checklist for this Upgrade

To achieve the tested 24GB configuration, you will need one 16GB DDR4 2666MHz SODIMM stick:

Check 16GB DDR4 2666MHz on Amazon → Precision Laptop Toolkit / Pry Tool →

1. The Starting Point: Stock RAM in the G531GT

The ASUS ROG Strix G531GT launched in 2019 with a budget-gaming focus. Most configs came with:

1x8GB DDR4 2666MHz SODIMM pre-installed
1 empty SODIMM slot for upgrades

My stock stick:

Brand: SK hynix
Size: 8GB
Type: DDR4 SODIMM 260-pin
Speed: PC4-2666 = 2666 MT/s, CL19
Voltage: 1.2V
Rank: 1Rx8 Single Rank
Model: HMA81GS6JJR8N-VK

8GB was fine in 2019. In 2026? Not even close. Modern games alone use 10-14GB. Add Discord, Spotify, and 20 Chrome tabs and you’re swapping to your SSD constantly. That’s where the stutters come from.

2. Laptop Compatibility: What the G531GT Actually Supports

Before you buy RAM, know your limits. ASUS lists these specs officially:

RAM Type: DDR4 2666MHz SODIMM, 1.2V only
Slots: 2x SODIMM slots, user-accessible
Max Capacity: 32GB = 2x16GB
Channel Support: Dual-Channel + Intel Flex Memory Mode
CPU: 9th Gen Intel Core i5-9300H / i7-9750H. Both have dual-channel memory controllers

3. Key Rules for G531GT RAM:

Speed Cap: The motherboard is locked to 2666MHz. A 3200MHz kit will boot, but run at 2666MHz. Don’t pay extra.
Voltage: Must be 1.2V. 1.35V "XMP" gaming RAM won’t give you any benefit and may cause issues.
Form Factor: Must be SODIMM. Desktop DIMMs are too long and won’t fit.

4. The Upgrade: Why I Chose 8GB + 16GB = 24GB

I had two options:

Option A: 2x8GB kit = 16GB Dual-Channel for ~₹4000
Option B: 1x16GB stick + keep old 8GB = 24GB Flex for ~₹5500

I went with Option B and bought a single SK hynix 16GB 2666MHz 1.2V SODIMM from Lamington Road, Mumbai for ₹5500 INR.

Final Config:

Slot 1: SK hynix 8GB 2666MHz 1.2V CL19 1Rx8
Slot 2: SK hynix 16GB 2666MHz 1.2V CL19 1Rx8
Total: 24GB DDR4 2666MHz

Price Breakdown:

₹5500 for 16GB = ₹2750 per 8GB

That’s exactly market rate in India right now. A 2x16GB kit would be ₹10,000-₹12,000, so this was the sweet spot for price to capacity.

BUDGET OPTION

16GB Kit (8GB x 2)

Pure Dual-Channel for competitive eSports gaming.

Check 16GB Kit Price

★ RECOMMENDED SETUP

1x 16GB Stick (24GB Flex)

Best value: adds 16GB to your stock 8GB stick.

Check 16GB Stick Price

MAX WORKSTATION

32GB Kit (16GB x 2)

Full capacity for Premiere Pro & 3D rendering.

Check 32GB Kit Price

Why same brand? It’s not required, but matching SK hynix means identical timings and sub-timings. Less chance of instability.

5. How Does 8GB + 16GB Work? Intel Flex Memory Explained

This is the #1 question: "Will mismatched RAM kill dual-channel?"

Short answer: No.

Intel CPUs since 2008 support Flex Memory Mode. Here’s how it works on the G531GT:

Memory Range	Channel Mode	Bandwidth Allocation
0GB – 16GB	Dual-Channel	8GB (Stick 1) + 8GB (Stick 2)
16GB – 24GB	Single-Channel	Remaining 8GB from 16GB Stick

What this means in real life:

66% of your RAM runs at full dual-channel speed. Windows and games will always fill the "fast" 16GB first. The last 8GB is only used when you’re doing heavy multitasking. Compared to 16GB pure dual-channel, you lose ∼0-3% FPS in games. But compared to 8GB single-channel, you gain 15-25% FPS + zero stutters. So yes, 24GB Flex > 16GB Dual for anyone who does more than just gaming.

6. Form Factor, Timings, and Stability Testing

Let’s get technical for 1 minute.

Form Factor: 260-pin SODIMM, 69.6mm long. Don’t confuse with desktop 288-pin DIMM.
Speed/Timings: Both sticks are JEDEC 2666MHz CL19-19-19 @ 1.2V. No XMP needed.
Rank: Both are 1Rx8 single rank. Mixing 1Rx8 and 2Rx8 usually works, but can limit speed on some boards.
Stability Test: I ran MemTest86 for 2 passes + 3 hours of Cyberpunk 2077 + 50 Chrome tabs. Zero crashes, zero errors. As long as speed/voltage match, mismatched sizes are 100% stable on Intel.

7. Real-World Performance: Before vs After

Test system: G531GT, i5-9300H, GTX 1650 (4GB), SSD 256, Windows 11

Gaming:

Game	8GB Single	24GB Flex	Performance Gain
Warzone 2	52 FPS (heavy stutter)	68 FPS (smooth)	+30%, no stutter
Cyberpunk 2077	41 FPS (RAM 98%)	48 FPS (14GB used)	+17%, no pop-in
Valorant	144 FPS	144 FPS (GPU bound)	No change

Biggest win: 1% lows. The game no longer freezes when loading new areas because we’re not hitting the page-file.

Productivity

Chrome: 40 tabs + YouTube + Docs = 12GB. Was impossible before.
Premiere Pro 2025: 4K timeline scrubbing went from "laggy" to "usable". RAM preview is 3x faster.
Blender: Can now handle 20M polygon scenes without crashing.

Boot & Multitasking

Windows boot time dropped ∼4 seconds. Alt-tabbing between game and Discord is instant now.

8. Step-by-Step Installation Guide for G531GT

Tools needed: A Phillips #1 screwdriver and a plastic pry tool. Do not use metal knives or coins to pry open the G531GT chassis—they will break the plastic clips and risk damaging the underglow LED ribbon cables.

⚡ Portronics | Novo Multipurpose Screwdriver Kit

Get the kit to make your upgrade easier.

Check Portronics 128-in-1 Precision Kit on Amazon → Check Novo 115-in-1 Electronics Repair Set on Amazon →

Power Down: Shut down, unplug charger, remove all USB devices.
Access Panel: Flip laptop. Remove 11 screws. Use a plastic pry tool around the edges. Don’t yank.
Locate Slots: You’ll see the stock 8GB stick and 1 empty slot next to it.
Install 16GB: Open the side clips. Insert the new stick at 45° angle, gold pins in first. Press down until it clicks.
Reassemble: Put bottom cover and screws back. Don’t overtighten.
Verify: Boot > Ctrl + Shift + Esc > Performance > Memory.

It should read: 24.0 GB, Speed: 2666MHz, Slots used: 2 of 2, Form factor: SODIMM

Warranty Note: ASUS India officially allows RAM and SSD upgrades. Just don’t tear the small "Warranty Void if Removed" sticker near the hinge.

9. Common FAQs

Q: Will 24GB use more battery?
A: Negligible. Maybe 3-5% less battery. The performance gain is worth it.

Q: Can I add 2x16GB later?
A: Yes. The G531GT supports 32GB max. You can sell your 8GB + 16GB later.

Q: What if I mix 2666MHz + 3200MHz?
A: Both will run at 2666MHz. You wasted money on the 3200MHz stick.

Q: Is 24GB overkill for gaming?
A: For just gaming, 16GB is enough. For gaming + streaming + editing, 24GB is perfect.

10. Verdict: Should You Buy 8GB + 16GB in 2026?

Buy this 24GB combo if:

You multitask heavily: gaming + streaming + editing
You already own 1x8GB and found a cheap 16GB stick
You want the best price-to-capacity ratio under ₹6000

Buy 2x8GB or 2x16GB instead if:

You only care about max FPS in competitive games
You want to sell your old RAM immediately
Budget isn’t an issue

For the G531GT specifically, 24GB at ₹5500 is the best upgrade in 2026. It extends the life of this laptop by 2-3 years easily.

Final Thoughts

Don’t get scared of "mismatched" RAM. Intel Flex Memory has made it a non-issue for years. The G531GT with a 9300H + GTX 1650 + 24GB RAM is still a very capable 1080p machine in 2026.

If you’re on the fence, just do it. The stutter-free experience alone is worth ₹5500.

What’s your G531GT RAM config? Comment below with your setup and what games you play. Need me to add benchmark graphs, let me know in the comment section below, and I will add it.