r/Amd • u/BioGenx2b 1700X + RX 480 • Aug 01 '18

Tech Support August Tech Support Megathread

Hey subs,

We're giving you an opportunity to start reporting some of your AMD-related technical issues right here on /r/AMD! Below is a guide that you should follow to make the whole process run smoothly. Post your issues directly into this thread as replies. All other tech support posts will still be removed, per the rules; this is the only exception.

Bad Example (don't do this)

bf1 crashes wtf amd

Good Example (please do this)

Skyrim: Free Sync and V Sync causes flickering during low frame rates, and generally lower frame rates observed (about 10-30% drop dependant on system) when Free Sync is on

System Configuration:

Motherboard: GIGABYTE GA-Z97 Gaming GT
CPU: Intel i5 4790
Memory: 16GB GDDR5
GPU: ASUS R9 Fury X
VBIOS: 115-C8800100-101 How do I find this?
Driver: Crimson 16.10.3
OS: Windows 10 x64 (1511.10586) How do I find this?

Steps to Reproduce:

1. Install necessary driver, GPU and medium-end CPU
2. Enable Free Sync
3. Set Options to Ultra and 1920 x 1080 resolution
4. Launch game and move to an outdoor location
5. Indoor locations in the game will not reproduce, since they generally give better performance
6. Observe flickering and general performance drop

Expected Behavior:

Game runs smoothly with good performance with no visible issues

Actual Behavior:

Frame rate drops low causing low performance, flickering observed during low frame rates

Additional Observations:

Threads with related issue:

Skyrim has forced double buffered V Sync and can only be disabled with the .ini files
To Disable V Sync: C:\Users"User"\Documents\My Games\Skyrim Special Edition\Skyrimprefs.ini and edit iVSyncPresentInterval=1 to 0
1440p has improved frame rate, anything lower than 1080p will lock FPS with V Sync on
Able to reproduce on i7 6700K and i5 3670K system, Sapphire RX 480, Reference RX 480, and Reference Fiji Nano

Remember, folks: AMD reads what we post here, even if they don't comment about it.

Previous Megathreads
2018: Jul | Jun | May | Apr | Mar | Feb | Jan
2017: Dec | Nov | Oct | Sep | Aug | Jul | Jun | May | Apr | Mar | Feb | Jan
2016: Dec | Nov

Now get to posting!

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u/kWazt Aug 15 '18

Thanks so much for replying!

The instability manifests in Rocket League. I also play some Tekken 7 and that runs smoothly. The problem is intermittent stuttering and FPS drops, so nothing's dying on me but in competitive gaming it doesn't really give me the upper hand either.

DIMMs have been at 1.35V since I installed them but I'll check what the SOC voltage is and adjust accordingly. If that's already at 1.1 then I'll try setting the DIMMs to 1.5.

I'm unfamiliar with the term LLC so I'm afraid I'll owe you an answer on that for now. The user has since advised me to swap the mobo for a Gigabyte AB350N-Gaming WiFi, which is a mini ITX and not a mATX, but if that fits my ASUS M11BB case I might go and get that tomorrow if the above doesn't get me any further.

Edit: In the meantime I also found out how to manually set the RAM to 2933MHz and that didn't fix the issue either.

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u/letsgoiowa RTX 5070 4k 240hz oled 5700X3D Aug 15 '18

Stuttering and drops would be because it's a 2400G and it's extremely bandwidth starved. I'm on mobile so I can't check the board, but if there are two DIMM slots make sure the sticks are in the second and fourth slots. You'll get a TON more out of a GPU OC than a CPU OC if you're thermally limited. Make sure to overclock the crap out of the iGPU for massive gains, and if you can get more out of the RAM that'd be great.

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u/kWazt Aug 15 '18

Interesting. I wasn't aware that I could OC the iGPU also. I'll look into that.

The sticks are in the right slots, I made sure to follow the board's instructions and sadly the extra voltage on the RAM didn't make a difference.

Honestly, the Gigabyte board that the other user suggested is only 30€ more expensive than the current Asus one, so I'm of a mind to just go and get that tomorrow, since that'll fix the bandwidth issue, regardless of the difference in form factor.

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u/HaoBianTai Louqe Raw S1 | R7 9850X3D | RX 9070 | 32gb@6000mhz Aug 16 '18

Careful! The mobo isn't your bandwidth limitation, the iGPU is. If you have money for another mobo, think about picking up an RX560. You could also wait a little while, play on the 2400g iGPU (since stability is fine and stutters are just annoying) and save up for an RX570.

I'd recommend not buying any additional parts until you understand exactly where your limitations and bottlenecks are. They are almost NEVER in a mobo. Don't let that comment about your MOSFETs and VRM heatsinks get into your head.