In my previous review of the Lenovo Y530 gaming
laptop I noted that I had thermal throttling present while under combined CPU and GPU load
in its out of the box configuration, but just how much of an improvement can we expect from
a repaste? In this video I’ll take you through the repasting process and show you the before
and after temperatures to see if it’s worth doing. Just as a reminder my Y530 has the quad core
i5-8300H CPU and Nvidia GTX 1060 graphics, which doesn’t seem to be available in all
regions, in the US for instance I think you can only get the 1050 Ti. In order to see the difference I’ve tested
at three different times. The first test was at stock settings, with no changes apart from
Windows updates since when I originally reviewed the machine in January. After that video went
up bob of all trades suggested a BIOS update that may help with thermals, so I’ve also
gone from this version to the latest currently available, which sure enough in the change
log notes that it updates the fan table. Let’s start by establishing a baseline,
all testing was completed with an ambient room temperature of 21 degrees Celsius. These
are the differences just with the BIOS update first to see if it changed anything. Testing
was done with a combined CPU and GPU workload by running the Aida64 stress test and heaven
benchmark at the same time to fully load the system. In terms of temperatures I actually
had slightly warmer with the new BIOS with the -0.15v undervolt applied. There was constant
thermal throttling on the CPU at 94 degrees celsius at stock, however even with the undervolting
there was still intermittent thermal throttling when it would spike up, which I think is what
we’re seeing with the warmer average after the update. These are the clock speeds for the same tests
just shown, again there wasn’t really a difference here between the old or new bios,
so it was good to rule that out, now let’s get into the repasting. Getting inside the Y530 is quite straightforward,
just use a phillips head screwdriver to remove the 11 screws underneath. I then needed to
use a pry tool to remove the bottom and access the internals. In the Y530 you don’t actually need to remove
the fans, but I wasn’t sure going in so disconnected them first. All you need to do
is loosen 7 screws over the CPU and GPU dies and remove the heatpipes. I had this piece
of tape sticking the fan to the heatpipes which seemed difficult to remove so I took
the lazy approach of cutting it. Here’s what we’re looking at in terms
of stock paste underneath, most of it seems to be on the removed heatsinks. There are
a fair few thermal pads here too, I didn’t bother with replacing them like I did in the
Aero upgrade and just left them in place. You can clean off the old paste using isopropyl
alcohol, I’ve got an old kit of ArctiClean which is just a paste remover and is by no
means required, but that’s what I used. Once cleaned up it’s time to apply the paste,
I’m using Thermal Girzzly Kryonaut, and as always please do feel free to tell me how
I’ve applied both too much and not enough paste at the same time. I did make a bit of
a mess but it should get the job done. Once complete it’s basically a case of reversing
the process, put the heatpipes back in place and screw them in. I tried to do each screw
around half way first before the final tightening to try and help spread the paste a bit more
evenly. Stick the bottom panel back on and put the rest of the screws in and we’re
done, time to test it out. I’ve expanded the results graph to include
two new tests after the repasting, at stock settings and with the undervolt applied. At
stock there was no difference in terms of thermals, however we’ll see how performance
was affected in the next graph. With the undervolt applied though there is a 4 to 6 degree improvement,
so we’re at least no longer hitting thermal throttling which is an improvement I’m happy
with. These are the clock speeds after the repasting,
and we can see that even without the CPU undervolt there is an improvement to CPU clock speed
under this workload of more than 200MHz on average over all 4 cores. While it’s still
thermal throttling here as we just saw, the throttling is less than before and it is performing
a bit better. If we look at the result with the undervolt we’re getting the full 3.9GHz
all core turbo speed of the i5-8300H CPU, and while we could reach this before with
the undervolting now the thermal throttling has been eliminated. With a simple change of thermal paste I was
able to improve performance and lower temperatures in my Lenovo Y530 gaming laptop without any
trouble. It would be great if I could do this with more laptops, but unfortunately I can’t
with borrowed review units as it would affect the results for other reviewers. As I own
the Y530 I can do whatever I like with it. I’m sorry this video took so long to make,
the last few months have been insanely busy, I’m actually putting off my first 9th gen
laptop review to finally get this done so I hope you found the results useful. Let me
know what sort of improvements you’re getting from repasting, and if you’re new here get
subscribed for future tech videos like this one.