PO3-640G-After switching to NH-D12L,CPU temps dropped to 60°C,but now my GPU is running hotter 80°C.

falsenine

Hey everyone,

I could use some advice on reducing my GPU temps after installing a new CPU cooler. Before the upgrade, my CPU was hitting 100°C while gaming, and my GPU stayed around 60°C. After switching to the NH-D12L, my CPU temps dropped to 60°C, but now my GPU is running hotter, around 80°C.

Obviously, the -40°C improvement for my CPU is great, but that +20°C for the GPU is making my house melt. My PC setup is a bit tight (I’ve attached pics for reference), so I’m dealing with some airflow issues. I’m looking for advice on the best way to bring those GPU temps down.

Here’s what I’m considering:

1. Return the NH-D12L for a smaller cooler: This would give me space for an extra fan, but I’d lose the NH-D12L’s performance, which is top-tier for coolers under 150mm. I don’t want to sacrifice too much CPU cooling if I can avoid it.
2. Switch out stock case fans for Noctuas: I’m leaning towards this since my stock CPU cooler was awful, and I’m guessing the current case fans aren’t much better.
3. Get a third-party GPU air cooler: This might help, but I’ve only got about ¾ of an inch of clearance, so fitting one might be a challenge.

If anyone has been in a similar situation or has some advice, I’d really appreciate your input. Thanks in advance for your help!

[Edited the topic title to include the topic issue.]
[Edited the topic title to include model number]

falsenine

PO3-640G-UR11 is my exact model

GotBanned

Morning!

Two things may have caused this. Either the air flow in the case is that different now, which I kinda doubt. More likely now that your CPU isn't temp throttled anymore, the GPU has more to work with and thus works harder ⇒ higher GPU temps.

Here's what I'd do. Well, actually did on my PO3-620.

• Get better and quieter case fans.
• Undervolt and O/C your GPU. Use MSI Afterburner to do this. Youtube has many tutorials.
• If HDD isn't a must and you use it only as a storage, remove that HDD shelf and get either a 2,5" SATA SSD as a storage drive (sticky tape it to any surface you want), or an external USB enclosure for your HDD.
• Got Dremel? While replacing the case fans, cut restrictive metal mesh to increace air flow.

Before ordering any new fans or butchering your case, try undervolting. Depending on the GPU model you have, you should be able to get it run cooler, quieter and faster.

Oh, and here's what I did. It's just for a reference. Ignore the gaping hole on the top. Adding a fan there made a little difference after making the case breath easier. If you remove the metal in the back, getting a finger guard (leaning on the PSU) is a must!