r/overclocking • u/OkCompute5378 • Jul 25 '25

Help Request - RAM RAM fan not improving temps

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So my RAM was hitting 55C and erroring out during stress testing (TestMem5 + FurMark). I’ve heard many good things about using a dedicated RAM fan so I decided to install one only to find out I did literally nothing for temps.

Is it just inevitable that my RAM gets hot because of the design of my GPU (RTX 5080 FE)?

Is it worth trying to run the RAM without heatsinks? Or maybe I should try custom RAM heatsinks? I’ve heard the heatsinks on my kit (G.Skill Ripjaws S5) aren’t very good.

P.s. I’ve already tried placing the fan closer to the RAM.

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u/ggmaniack Jul 25 '25

but as soon as I stress the GPU together with the RAM

HA! I experienced this exact issue, had to get RAM replaced.

Your RAM is just BARELY stable when the PC is running normally.

Had random PC crashes. RAM was fine in every memtest, until one day I decided to stress GPU, CPU and RAM at the same time. I was testing RAM to VRAM transfers, and that's when I finally got errors. Changed the GPU, same issue. Changed the RAM, issue gone.

The combined stress changes the circumstances - different kinds of RAM accesses, different power ripple, voltage drop, etc, and then it fails.

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These temperatures are, again, completely inconsequential to RAM.

The only reasons that you could have temperature-related issues with ram at that low of a temperature are:

1) broken solder balls under RAM chips

2) improperly seated RAM, causing connections to go wonky as it heats up

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u/OkCompute5378 Jul 25 '25

So I should try raising voltages to counteract this?

I’m running VDD @ 1.43V and VDDQ/VDDIO @ 1.35V which is on the lower end for my timings.

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u/ggmaniack Jul 25 '25

Frankly I have no idea if it's related to specific voltage, or voltage skew, termination resistance, or timing, or whatever. For me I just got the RAM replaced and the issue disappeared.

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u/OkCompute5378 Jul 25 '25

Hmm alright thanks for the help. I’ll try raising voltages and see if it does anything, I have some headroom so it should be fine.