Hey all! I recently got a second hand dGPU E6440 (i7 4600M) from a guy on FB marketplace, the machine looks and works all ok (after some troubleshooting), however it suffered from extreme throttling (as low as 0.4MHz)
After long troubleshooting I've managed to solve the issue with ThrottleStop, I think this happens as the charger he gave me is a generic one.
However, the machine was suffering from Thermal, Current Limit and Power Limit Throttling as reported on XTU
To solve Thermal I bought some Noctua NT-H1, which works for shaming periods of time, I've changed Paste easily 4 times on a month:
First time I opened it the Paste it had was horrible at the least, I cleaned it all and applied a small blob to both chips, got temps down from 80C on Idle to high 40s, low 50s, while gaming it held a solid 97C (with its sweet dose of 97C PROCHOT), which ultimately always caused my CPU to go 0.4MHz if I gave it the time to do so, after new paste it reached 85-87C at full 3.5GHz TB)
Couple weeks after, I opened it up as 97C and Thermal Throttling came back, but before that I noticed CPU wasn't working on Turbo anymore while gaming, however when opened it up I noticed that the paste slid al out of the Dies, so I thought I used too little and re-cleaned and re-applied, a slight higher amount on both chips, and monitored temperature more closely.
Turned out the same, four days later I was pretty sure the same as before happened again, I opened it and all the paste had slid out of both chips and temperatures were going high again.
This time I applied a good bunch of paste (that's a no-no for me, always, but what else could I've tried? I'm pretty sure there's enough pressure on all screws [EXCEPT for screws 5 & 6 on the GPU part of the Heatsink, they seem to stand out while all others seem to go deeper, however, they will not go deeper despite how much force I put into, it feels like they're seated])
This time It lasted a couple weeks again, doing some VRAM underclocking kept *96C* everything from Thermal Throttling, however when I opened the computer to check, the paste did slid out of the Dies already, this time I only applied a regular amount into it and haven't done anything else since, but I'm pretty sure this persists.
Pictures of what it looked like when I opened it the fourth time and screws that I feel like not reaching bottom:
Room temperature has been around 25C max and mins of around 5C
Could this be the Noctua's paste consistency?
Might be the screw I'm mentioning?
Can someone provide me with a Screenshot of "Primary Plane Power Limits on TPL section on Throttlestop? As far as the program creator told me, there's one point while gaming that my Turbo needs to be shut down as my GPU isn't getting enough CURRENT, he said that the locked value (55 on mine) was what it was causing it, and if it wasn't editable I was pretty much stuck with that, in that regard I'm planning on upgrade to a 4800MQ, but I'm concerned that I will not get it's maximum E6440 potential as I'm stuck on PPL CL 55, Throttlestop author told me the ideal value should be 100. I've tried to extract my BIOS and modify Power Limits as described posts up, however I get "Error 201: [FPTw.exe] cannot be run on the current platform. Please contact your vendor." with no solution yet, I wonder if the FPTW OP uploaded was different than the one I found on the web, I looked for the same version tho)
Also, could anyone provide Gaming benchmarks using a Dual and Quad? Will it benefit framerates to get a Quad? I know on instances where CPU is at 100 and GPU lower than that it will certainly help, but how about non-bottlenecking games? I use this machine for content creation too, so I'd get benefits from a Quad anyhow.