*HP EliteBook 8740w Owners Lounge - PART 2*

[zone66x]

Yeah the FX3800M heatsink was pretty close. I actually Dremeled it a bit yesterday since I noticed that one of the inductors was touching a corner of the heatsink. The second inductor on the right (bottom one) was also a bit too high by less than a milimeter so I shaved the heatsink there too. The contact with the K5000M's inductors, core and ram is now a lot better than the contact was with original FX 3800M.

I don't think the 5000M heatsink would make much of a difference compared to the FX 3800M heatsink actually. All the MOSFETs and inductors were using pretty thick silicon thermal pads that weren't exactly that tight to the heatsink so I'm guessing it's the same for the 5000M's heatsink. The main prob with the I have right now is that the center MOSFETs are only half covered since the previous MOSFET thermal pad is smaller. Also the MOSFETs around the inductor on the right have no thermal pad at all. Amazingly the MOSFETs on the top are almost completely covered by the previous top MOSFET's pads.

I'm really just wondering if these MOSFETs will damage themselves without any contact with the heatsink under heavy load?

Also what place would you suggest to get the 5000M's heatsink? Maybe I'll get one just for fun.

[zone66x]

There are no heatsinks for the vRAM on the underside on the high end Clevos either, so I wouldn't worry too much.

Oh that's good to know. If the BIOS mod will be able to overclock the K5000M then I'm guessing copper shims wouldn't hurt right? Not sure if there's space for them to fit though.

In your opinion would some of the MOSFETs not having any heatsink contact cause any probs?

[zone66x]

I made two images to help show the difference between the various video cards and the components on them. In the first image the cards are the Quadro 5000M, Quadro K5000M and Quadro FX 3800M respectively. The second images puts an overlay of the components that have contact with the heatsink over the K5000M.

Interestingly the FX 3800M heatsink has grooves that fit inductors almost perfectly. I did a bit of grinding on the heatsink to make it fit better bit it was very minor. Maybe the 5000M's heatsink would fit better but it all depends on how it was shaped.

[Dysprositos]

Yeah the FX3800M heatsink was pretty close. I actually Dremeled it a bit yesterday since I noticed that one of the inductors was touching a corner of the heatsink. The second inductor on the right (bottom one) was also a bit too high by less than a milimeter so I shaved the heatsink there too. The contact with the K5000M's inductors, core and ram is now a lot better than the contact was with original FX 3800M.

I don't think the 5000M heatsink would make much of a difference compared to the FX 3800M heatsink actually. All the MOSFETs and inductors were using pretty thick silicon thermal pads that weren't exactly that tight to the heatsink so I'm guessing it's the same for the 5000M's heatsink. The main prob with the I have right now is that the center MOSFETs are only half covered since the previous MOSFET thermal pad is smaller. Also the MOSFETs around the inductor on the right have no thermal pad at all. Amazingly the MOSFETs on the top are almost completely covered by the previous top MOSFET's pads.

I'm really just wondering if these MOSFETs will damage themselves without any contact with the heatsink under heavy load?

Also what place would you suggest to get the 5000M's heatsink? Maybe I'll get one just for fun.

HP Partsurfer.

[zone66x]

Cool thanks, just placed an order for the Quadro 5000M heatsink (613761-001). I tired out all the suppliers HP suggested for Canada and none of them had 613761-001 but HP Partsurfer did It was reasonably priced at $33.80 also.

[Siorah]

let me know how this works out for you zone66x, you've made a few people at work very very interested in this.

I will be having 21 elite books going out of warranty very shortly, (they contain 5000M GPU's) and this would be an amazing lease of life for them, as the engineers are still crying at the idea of 1080p screens.

Sio

edit,

i actually have a question.

Could you run gpu-z for me and idle the GPU and take a shot, then max the gpu, and take another shot?

I would like to see what the 'bus speed' changes to.

on idle it should say @16 x1.1 or x1.0 and at load should be @16 x2.0

cheers

[zone66x]

let me know how this works out for you zone66x, you've made a few people at work very very interested in this.

I will be having 21 elite books going out of warranty very shortly, (they contain 5000M GPU's) and this would be an amazing lease of life for them, as the engineers are still crying at the idea of 1080p screens.

Sio

edit,

i actually have a question.

Could you run gpu-z for me and idle the GPU and take a shot, then max the gpu, and take another shot?

I would like to see what the 'bus speed' changes to.

on idle it should say @16 x1.1 or x1.0 and at load should be @16 x2.0

cheers

Hey Sio,

I don't have the screen shot of gpu-z under load but I do have these available right now:

http://gpuz.techpowerup.com/12/08/05/583.png

http://img.techpowerup.org/120804/nv...804_015923.png
http://img.techpowerup.org/120804/nv...804_015947.png
http://img.techpowerup.org/120804/nv...804_015959.png

Generic VGA video card benchmark result - Intel Core i7-820QM Processor ,Hewlett-Packard 1520 score: 13924 3DMarks
Generic VGA video card benchmark result - Intel Core i7-820QM Processor ,Hewlett-Packard 1520 score: P5366 3DMarks

test 2 - Pastebin.com


The pastebin stuff is a log from gpu-z while running 3DMark11.

Also important to note is that these screenshots and logs were done to test my K5000M overclocked at the same speeds as the GTX 680M. So instead of the stock core @ 601MHz and memory @ 1500MHz it's currently set at core @ 719MHz and memory @ 1800MHz

Also important to note is that I'm still using the slightly modified FX 3800M heatsink if your also interested in temperatures.

I'll post the under load gpu-z screenshot when I get home from work later tonight.

[zone66x]

Here's the gpu-z screenshot under load showing pci-e @ 16 x2.0

http://gpuz.techpowerup.com/12/08/07/f5a.png

I also got the Quadro 5000M heatsink in the mail today but I think I'll wait to install it once I get my thermal pads and more thermal compound.

[zone66x]

Here's a image I made to show how well the Quadro 5000M's heatsink should fit onto the Quadro K5000M. I will definitely need to rearrange the thermal pads a bit. I bought some 4mm thick thermal pads that will hopefully be thick enough to make all the capacitors in between the top two inductors have contact with heatsink. I hope that will also work with the MOSFETs to the right of the bottom right inductor. It looks like the metal is cut deeper where the top tow inductor thermal pads are but the the 5000M's inductors are smaller than the K5000M's so I hope this won't cause any bulging issues.

Hmm actually now that I think of it maybe the best thing to do where there are gaps is to attach copper shims to the heatsink to fill the gap. Don't know if I feel like going through that much trouble though.

[javak810i]

Hi, I have a HP Elitebook 8740w custom config with NVIDIA GTX460m (1,5GB GDDR5) and think it doesn't perform how it should.
See, in GPU-Z it shows only PCI-E x16 1.1 and very low pixel fillrate.

And in 3D Mark 11 (Performance 720p) I got like only 1750 graphics point (without overclock).
So, should i get another (better) driver, or can I use any BIOS update for the card (from Dell for example)?