6920g thermal pad or thermal paste for the northbridge

i have a question for everyone who has removed the heatspreader from an acer 6920g. Did the northbridge made contact with the heatspreader by a thermal pad or by a thermal paste ? mine had something that looked like a thermal pad but when i tried to remove it , it tore into small pieces ( i know a thermal pad is not like that ). i used a thermal paste when i put everything back together. Should i open it up again and use a thermal pad for the northbridge ?. In everst in the sensor menu it shows 42 degrees celsius for the motherboard sensor ( i assume that is the northbridge).

 

I honestly don't recall - I think Acer uses pads for the northbridge.

 

Thermal pad here, changed with quite huge amount of MX-2 paste Actually the thermal pads after prolonged use do tear into small pieces. My lappy was 6 months old when I started to upgrade it, and most of the thermal pads did tore into small pieces, so I had to replace them with new ones (the ones on the GPU memory modules) and some with thermal paste (GPU core, North bridge). After putting a thermal paste in there, how are your temperatures - better or worst?

 

almost no differences in temperature so far, maybe 1 or 2 degrees celsius since i used as5 and it a has a curing time..

i started this thread because i don't want to burn the northbridge by using thermal paste instead of thermal pads

should i remove it again and use a thermal pad for the northbridge ? i am not sure how good the contact is between the heatsink and it.

 

I don't know and I don't dare to apply thermal paste on my AS 6920G because some users gain temperature instead of decreasing it after applying the paste.
I would just stay with my vacuum and my super DOWNVOLT.
I think I shall buy a cooler... Maybe during PC Fair ~

 

I have never tried AS5, but as far as I know it's highly recommended to apply it as thin as possible, so I don't think that it's good enough for the NB. MX-2 on the other side has pretty easy application, just put some amount over whatever you want to, slap the heatsink and that's it Take a look at the official site, no half-an-hour-spreading, no credit/debit/ID cards, nothing like that.

 

i did apply a small amount, but the thing is that i don't know if the heatsink is touching the northbridge. i saw that the thermal pad was pretty thick compared to the thin layer of as5 i applied.

right now in everest the motherboard sensor ( i believe that is the northbridge temp sensor) varies between 38 and 40 in an ambient temp of 27.

 

Small amount? It doesn't sound good, but the temps seems to be OK. Try with HWMonitor and tell as what it shows.

 

temp are pretty normal in hwmonitor.

what is TZ00, TZVR ,TZVL, TZ01 ?

 

I would love to know that as well.

 

All I know is that they're thermistors on ACPI Thermal Zones (TZ). TZVL and TZVR should be the casing temperatures (around the CPU) and my guesses are 00 and 01 are for the system motherboard (might be Northbridge and Southbridge or something?)

For idle, with room temp at low 20s, my TZ00 and TZ01 are usually mid-high 30s, TZVL and TZVR are mid-high 40s, CPU temps are mid 20s, GPU temp is mid-high 40s, and HDD is around 40.

At load, my TZ00 and TZ01 reach almost 50, TZVL and TZVR mid 60s, CPU low-mid 50s, GPU mid-high 60s, and HDD mid 50s.

These numbers are for my undervolted T5550 and overclocked 9500M GS, specs in my sig.

 

after comparing Hwmonitor with everest i believe TZ00 is the northbridge (37 celsius). maybe TZ01 is the southbridge ( 37 celsius) , TZVR and TZVL i don't know what they are, but they are both 47. GPU is 48, HDD is 40 and the cores are 23 and 26, all on an undervolted t5550.

i don't think the core temperature is correct since their temperature is lower that the room temperature whici is about 25 celsius now.

do you think i should bend the northbridge and GPU heat spreader a little bit more to make a firmer contact ?

 

Use RealTemp to get the real core temperatures. Mine was 15 degrees C below the actual temps. You affirmed my guesses for the TZ00 and TZ01 Your temps seem ok, I wouldn't change the heat spreader.

 

WOW! Your 9500MGS overclocked very well.
Currently, I don't dare to overclock(30-40%) as you do. Sounds scary. LOL!
I would overclock further when I get my cooler. XD!

 

With CPU at 36 and GPU at 53 (cold room), TZ00 is 38, TZ01 is 36, TZVR is 50, and TZVL is 51.

 

It mostly depends on your notebook temps and a bit of luck (since some GPUs have less OCing ability). Just run something like ATITool to make sure no artifacting, it's not really that difficult - but you have to be patient

I assume that's idle? If that's load, then your room must be pretty cold!

 

i won't change it but i'm thinking of lapping it. the base of it is really bad and i want to make it nice and shiny . really now it's very rough and has some very small holes .

later edit : is it normal for the southbridge to be hotter than the northbridge by around 5 degrees celsius ? and where is the southbridge located ? maybe under the keyboard ?


i think i'm a little carried away right now. i put together a computer for a friend a few day ago and since the i've been tweaking mine and 2 days ago i opened up my laptop.

 

That is idle temperature for sure.
If it is loaded temperature, you can assume he live inside a icy room. LOL.
I used GPUtool which is same as ATITool before, I lazy to wait so long so I give up and try my own method. I only dare to overclock this much, see in my signature.

 

Yup, it was indeed idle.

 

Is that "cold room" you always stay?
I can't get a cold room. T.T
I tested my laptop temperature on an air-cond room.
Well, it is damn good!
IDLE, 50C GPU(no downclock/powermizer disabled), 30C CPU(full speed) and 36C HDD. I did not check TZ00, TZ01, TZVR , and TZVL.
LOAD, 65C GPU, 48C CPU and 43C HDD.

 

Nope - I was on campus doing some studies.