What should realistic temps be after cpu upgrade?

I just upgraded the cpu in a p7811fx to a t9900 and added 8gb ram (total).
At idle: tzs's at 53c, cores are at 43c, gpu cor at 36
After 15min of black opps:tzs at 84c, cores at 76c, gpu core at 61c
(Used cz diamond 7 thermal compound)
After serching the internet, I'm getting answers from "way too hot" to "that is normal".
What is truely normal temps for above specs?

 

since you are not undervolting temps are fine. I can say with the q9200 doing a copper shim on the NB the TSZx's lowered to the CPU temps. Did the copper shim with ICD too. The TSZ is a bit warm but well within spec's

 

no shims. just icd7. Factory install had a pc. of blue foam only on chipset and poorly applied compound on cpu.

 

the original pad on the NB is poor, this is why the temps are so high with the TSZx. Copper shim mod should lower that. Not that you have too, you seem fine but it is an option............

 

I'll have to get the copper shims. I don't wat to shorten the life of the machine by running it too hot.
Do the rest of the temps look ok to you?With the old 8400 processor the temps were only in the 60s after gaming.

 

else wise your temps are fine............

 

Can anyone tell me what thickness of a copper shim I would need for p7811fx. I just added a 1/2" X 1/2" x .025 and no change. When I removed the heatsink to put the shim in, I could tell there was a good sizes gap based on how the IDC7 teared up on the chipset.
I have no way to gage the gap. Does anyone know what thickness of copper is needed?

 

1mm is fine, actually with ICD I used 0.5mm as 0.5mm on the CPU and 1.0mm on the NB. What you will notice is without the shim when you tighten #5 screw over the NB the heatsink actually pulls toward the NB chip, like it is tightening up a gap. With the shim when tightening the NB side of the HS it did not move towrad the chip, there was no gap to take up with tightening the last screw.

Make sure you tighten the screws by the marked order. Then once all are in go over them one more time to be sure they are tight.

Edit; Also remember you need ICD on both sides of the shim too......................

 

Much appreciated TANWare.

 

Any more info on the shim?? Like where and what to buy.

 

This may help, it was when I did the cpu mod a year and half ago. (no shim)

3dmark test

 

was that with the original thermal pad and stock vCore too?

 

Yeah, I guess I should have elaborated, did in the original thread. I used ICD7 on CPU and NB, no thermal pad.

**edit: I'd have to search what the video clocks were at but I think they were pretty much at maximum recommended settings, something like 750/900/1700, not sure this is even right, laptop is at home and I haven't messed with in a while.

 

Ended up making my own out of som scrap copper I had. Measures a "c" hair more than 1mm.

Thanks though.

Actually assembling it now. I'll let you know how it turns out.

 

Done and fired up.

New Temps:
At idle: tzs's at 46c, cores are at 35c, gpu cor at 38
After 15min of black opps:tzs at 71c, cores at 63c, gpu at 52c
Still a 11c diff between tzs's and cores but overall a 7c cooler than no shims.
Not as cool as I was hoping for or what other have said their system was but better.

 

all systems will be different, just the nature of the beast. good to hear all went well and you got such good results.................

 

played cod black opps for about 2 hrs. Afterwards checked cpuid monitor. tzs's hit max 83c and CPU's hit max 77c. GPU only hit 61c which used to be the max of the tzs when i had the 8400 cup in it.

Any way to increase the fan speed of the cpu? (on my pc i use RivaTuner. last tried it wasnt compadible with p7811fx. )

Any sugestions on increasing fan speed?

 

Oh yah, that was with a cooling pad running and a fan blowing across the keyboard.

 

Unfortunately the CPU fan doesn't really increase. You should be able to hear it blowing pretty good though. It should be At least 1/2 to 2/3 of the GPU fan. If not be sure the fan spins freely. You can do this with compressed air in the exhaust vent; just get the fan to start whistling. If it won't start whistling then you may have a stuck/gummed fan.

TSZ will increase as the CPU temp rises and now that you have a faster CPU there is allot more I/O over the NB. Again this is just the nature of the beast. You TSZx is still a bit higher than normal but well within spec. ……………

 

Your imput has been awsome and much appreciated! I'm just not use to temps being so high on this machine. Worried about shortening the overall life of the unit. All seems to be well when I'm not gaming it's just those 80c + temps that scare me.

Thanks again, I'll be around, there is much useful info in these forums.

 

80c+ is fine, TSZx can get to 100c before issues occur.................

 

Any idea where I can get a replacement heatsink for the cpu on the p7811fx? I've been thinking of an idea for a mod and don't want to try it on the only one I have.

On ebay I only see gpu heatsinks.

 

How about this one............

 

Don't know how I missed that. What did you search for?

 

Seems to me it is a poor design from the start. It has very little mass over the chips and not enough cooling fins at the blocks. (not to mention heat rises so it seems to me thechips are upside down. (nothing can be done about that) Anyway I'm gonna use one as a "ginnie pig" just to ease my curiosity.

 

Gateway has 2 different HS. If yours looks different then it is the C2D version. Th one I linked too is the C2Q version and is actually calibrated for a higher TDP. So actually it will help keep the system cooler than the design you have.................

 

I posted a new thred with with the mod to the heatsink that I came up with:
http://forum.notebookreview.com/gateway-emachines/576956-38-c-drop-temp-after-heatsink-mod.html

It actually worked! Dropped my temps almost 40c!

 

Has link to picks of the mod.