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Laptop GPU flashing

Joined
May 4, 2009
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System Name penguin
Processor i3-4160
Motherboard Asus H81 Mini-ITX
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Memory 2x4GB Kingston 1600MHz
Video Card(s) Saphire Radeon 7850 2GB
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Software W7/Lubuntu
#1
[Fixed partially]Laptop GPU flashing

So today I decided to open up the laptop for cleaning and changing the thermal goo. And after a bit of tinkering, I got to the insides. Then I proceeded as usual but what I thought was some really dried up goo on the GPU turned out to be some very brittle and old thermal tape. Well I swapped it with MX-2 and decided I'll just put more of it.

However now the CPU runs 15c cooler and the GPU is running about 15c warmer hitting close to 100c under heavy stress. Because I'm too lazy to unscrew the bazillion screws again necessary for opening it up I was thinking of flashing the bios instead.

So here's my question. Does anyone have any experience with flashing Toshiba laptops with Ati cards?

I got a 64kb bios file when I extracted with GPU-z. That seems adequate for a m3650. And when I open it up with RBE I can distinctly recognize 2 voltage states: 0.9v and 1.1v.
What I want to do is undervolt and underclock the load settings to the power saving settings and have it running at 300/400@0.9 all the time.

Does anyone have any safety tips or anything else I should be aware of?

Edit:added the modified stock bios. If somebody has the time to check it out it will be greatly appreciated.

Edit2: For some reason Ati WinFlash is not detecting the mobility chip in the laptop. :(
 

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Joined
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System Name Filtration tower
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#2
how thick was the thermal tape on gpu? it might be that the thicker thermal tape is better then a heavy layer of good paste
 
Joined
May 4, 2009
Messages
1,940 (0.62/day)
Likes
409
Location
Singapore
System Name penguin
Processor i3-4160
Motherboard Asus H81 Mini-ITX
Cooling Stock
Memory 2x4GB Kingston 1600MHz
Video Card(s) Saphire Radeon 7850 2GB
Storage Plextor M5S 120GB+1TB Seagate
Display(s) 23' Dell
Case CM Elite 130
Audio Device(s) stock
Power Supply Corsair CX430m
Software W7/Lubuntu
#3
It was about 1.5mm

Edit:
Fixed sort of. After fiddling with the flashing tools for half an hour more and failing to force them recognize the mobile chip, I opened up the laptop a second time and put an even larger goop of mx-2 and now temps seem to be back under control. Let's hope it remains that way.

Dang I definitely prefer desktops - much more robust :D
 
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