G51vx CPU Upgrade Temps - Before and After (pics)

Just thought I'd post some of the details of upgrading the P7350 in my G51VX-RX05.

When I first upgraded to the T9600 a couple weeks back I noticed a 10C+ increase in my CPU and THRM temps as well as an increase in my GPU temps. I was expecting a bit of an increase in temps since the T9600 is obviously going to use more power, therefore running hotter, but I wasn't expecting this much. I thought it was maybe the AS5 I applied but after changing back to the P7350 and running tests, I can confirm that the change in temperatures are solely because of T9600 as my temps went back to what they were before doing the upgrade.

Note that I only changed the CPU and applied AS5 on the CPU. The northbridge had a thermal pad which I left on there and I didn't touch the GPU since it uses a separate heatpipe. So the only variable here is the CPU.

Tests in both cases were done with AS5 on the CPU, the CPU undervolted and a Notepal X2 notebook cooler. Ambient temp of 27C. TJ Max was set to 90C for the P7350 and 105C for the T9600 in HWMonitor.

Left 4 Dead 2 - 5-10 mins of gameplay on same level







The above is completely unrelated but just wanted to see what kind of temperatures I'd get if I removed the bottom panel from the G51 and placed it onto the cooler. You can see that it's a nice drop. ~8C for the CPU and 5C for the GPU.

-Crysis - 15-30 mins of gameplay on same stage-




Hope this helps for those that are planning to upgrade their CPUs but are not sure what temperature changes to expect. I don't really care so much about the CPU and THRM temps since they're still good. The GPU temps were hot enough as they were so this doesn't help. Remember, I didn't even touch the GPU. The CPU and GPU practically share the same heatsink assembly with the fan...just that they have differen't heatpipes. So obviously the GPU is being affected by the extra heat. I doubt putting AS5 on the GPU would do anything since it didn't do anything to my CPU temps but I might get some ICD7 later.

I've also ordered some copper block heatsinks so I can do the mod. Hopefully that will help and I'll update once I've done that.

For those that upgraded your CPU, did you get similar results in particular regarding the GPU?

 

I'm curious to hear what results others have also. What line of processors can this Asus be upgraded with? I think the processor with it is a bit of a bottle neck to the other components but the heat rise you are getting concerns me. I wish I had waited for one of the i5/i7 models but that's here nor there.

 

My CPU is undervolted, so under full load it's 11.5x @ 1.118v. With a full session of Left 4 Dead 2 (at least ninety minutes) I don't think my CPU never goes above 56C and the GPU never above 86C. Then again when I was running that I noticed my HWMonitor TJMax was set to 100.00. I'm switching to 105C and running a CPU stress in OCCT to see what I get.

EDIT: Done

EDIT2: Did some L4D2. Chipset was up to 68C, CPU was 62/62 (I guess I did need to change the TJMax after all), and GPU hit 86C. 69.5F ambient and on top of Xpad.

 

Hmm Forge, I wouldn't mind getting my hands on your 86C GPU temp...and you're running a T9900 too. From memory you have MX-2 on your GPU which helped and you've also done the drilling and the copper block mod. Plus your ambient is a lot cooler. You reckon all that is the cause for the difference to mine?

My CPU under full load is 10.5x @ 1.0625V.

The Penryn P and T series work.

http://en.wikipedia.org/wiki/Intel_Core_2#Penryn_.2F_Wolfdale_.2845.C2.A0nm.29

The CPU is a bit of a bottleneck. The system boots quicker now and there is an improvement in performance for most of the games I've tried but nothing drastic. L4D2 sees an improvement for sure but not a huge difference. It's hard to tell when the fps was already high in the first place. Not that it reflects actual performance in game but in the HL2 stress test, I got 186fps average on the P7350 and now get 232fps average with the T9600. I don't have GTA IV but I'm pretty sure that would see the most improvement.

And yeah the GPU temps are pretty ridiculous. I just got 98C in Crysis . Time to resort to some modding.

 

I got a G50vt-A2 with a 9800 GS and I have not OC it. I play L4D2 and Wow quite a bit and the highest I have seen my 9800 GTS hit is 82C. Did no trealize how much more heat the 260 gives out. For some reason, I thought they where just about the same GPU. My CPU is the 9400 C2D.

 

Ambient will definitely cause significant differences.

As for the GPU itself, it's currently pasted with Arctic Silver Matrix sandwiching a copper shim on the core. Before I tried that I used MX-3.Didn't see much of a difference between the two, honestly. I would think that if I was meticulous about it the MX-3 would come out on top by a little bit, but the ASM is much easier to apply.

RAM is padded with <strike>band-aids</strike> Bergquist 1mm-thick pads. Copper heatsinks are slapped all over.

Bottom panel has been modified (by another member) with the fake grill removed. I also drilled out the panel so it looks like you can play battleship on it.

As for my GPU temperature itself, the threshold before it kicks on to second-highest power is 86C, and then max speed at 94C. With fresh air for the fan via the removed grill, it's more than enough to stop the heat at 86C. The only time I've hit 94C is in the OCCT PSU test, which is basically running Intel Burn Test and Furmark at the same time.

Speaking of furmark, Element kindly showed me 1.8. Looks cool. At least it doesn't look like a toy for furry fetishists.

EDIT: Holy crap. With all effects checked off except for any AA, and running in 1366x768, it got me to 90C in twelve minutes. That's scary stuff.