FPS drops in DOTA 2 on one hard drive, not the other

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bjarnidk

Honorable
Sep 23, 2012
32
0
10,530
Hey, I just formatted my computer and put dota on my hdd instead of my ssd. Now I'm getting fps drops every time someone buys an item and it shows on the right side of the screen what they bought, or some animations happen (big spells like earthshaker ulti).

I tested my hdd for errors but I can't find any on any software (gsmartcontrol and such) nor the built-in disk checker. The game runs fine on the ssd?

Specs:
CPU: 4770K
GPU: 970 GTX
RAM: 16 GB 2,4 ghz
Motherboard: Z97P-D3
PSU: Corsair CX 750M, 750W
Monitor: AOC 24" LED G-Sync g2460Pg running at 144 hz
Storage: 111GB KINGSTON SV300S37A120G ATA Device (SSD) 28 °C
698GB Seagate ST750LM022 HN-M750MBB ATA Device (SATA)
 
Solution
James Mason
I used to see this problem asked about lot more a year ago.
It's interesting that you're using a laptop hard drive in a PC.
That low amount of Cache (8mb) is the biggest hampering factor. A 5400 with more cache probably wouldn't have an issue. That's why the SSD it works fine (because it's entirely cache) and the HDD doesn't.
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greens

greens

Splendid
Jan 27, 2012
3,773
7
26,965
HDD usually don’t cause gaming lag.
The data is taken off of the HDD at initialization and stored in RAM.
The HDD won’t actually be accessed during a typical gaming session outside of loading screens or large world games.
Run crystalmark to get an idea of your drive’s speed. Even the worst HDD are faster than most internet connections.

So we know that your HDD isn’t being used during your matches.
We can also assume your HDD is significantly faster than your internet connection.
So it most likely isn’t your HDD causing the lag.

Full system specs of your PC?
 
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James Mason

James Mason

Titan
Jan 2, 2014
13,553
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74,965
Uhh, specifically what model of HDD? is it slow like 5400rpms? that could be why.

7200RPM HDDs don't show performance issues in games, but slower ones do. And there's virtually no performance difference between a 7200 and SSD in games, besides level load times.

It sounds like it may be a DOTA specific problem though. Or you don't have enough RAM to keep those things in storage so it's always having to swap the data and the HDD is slowing that down.
 
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James Mason

James Mason

Titan
Jan 2, 2014
13,553
7
74,965
I used to see this problem asked about lot more a year ago.
It's interesting that you're using a laptop hard drive in a PC.
That low amount of Cache (8mb) is the biggest hampering factor. A 5400 with more cache probably wouldn't have an issue. That's why the SSD it works fine (because it's entirely cache) and the HDD doesn't.
 
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