Stuttering problem after T7500 upgrade on 5920

Hey all,

I'd first like to say thanks for all the great info on this board. It helped turn my processer upgrade from a guessing game into a straightforward swap.

That said, I'm having a little trouble after slapping a shiny new T7500 into my 5920. I've been putting together computers since I was 11 (Pentium 60, woot), and I haven't fried a CPU yet, so I'd like to think I have the concept down.

I cleaned all the old thermal compound off the heatsink rig, wiped it down with alcohol and let it dry. Put a dab of Ceramique on the CPU die, then re-attached everything and was off to the races. Regular Windows apps like IE and AIM run fine. When I try to play CoD4 (which ran nicely before at 800x600) or run a benchmark with 3DMark06, it runs fine for a few seconds, but as soon as there is any load (more than a couple models on screen), it begins stuttering and lagging like it's running lousy netcode. This also happens on the 3DMark CPU test, so I'm guessing it's not a GPU issue.

I'm running the stock 2GB of RAM and BIOS 1.3708. CPU-Z, Windows System control panel and the BIOS page report everything properly.

Any input would be greatly appreciated!

 

Monitor your temp using some app.I think this due to heat.

 

maybe u applied too much thermal compound. mine is like that too before. look at ur gpu and cpu thermal compound,is it too much or too litle?
my TM8204 was like that before and i figure out that is because my thermal grease is not enough for the GPU and it's too much for the cpu.
hope this will help. ^^

 

Thanks for you replies, guys.

Speedfan was reporting load temps in the high 80s, and I tried a bunch of different amounts of AS5 and Ceramique (not at the same time), but I still had the problem. I decided to swap the T5250 back in and run 3DMark06. I got a score of 1445, down from my fresh XP install score of 3344, so there's obviously been a problem somewhere. Am I going to have to send it in for service?

 

what processor did you upgrade from?

mabe your windows, still thinks it has the old processor, and uses different software for it.?????

mabe you need to do a fresh Windows Install

regards

John.

 

it's nothing to do with Windows. You only need to tweak BIOS

 

i have the same problem too before, and i almost give up.
make sure u apply a really thin layer for the cpu.

 

Thanks for all your help, guys, but no joy. I get the same 3DMark score with both CPUs, and the heat stays the same no matter how much or how little paste is on the CPU, chipset and GPU. It's still under warranty, so I guess I'll back up my files and send it for service.

 

Try to lower your CPU voltage by using RMclock

 

So have you figured out if it`s your cpu or gpu that is under-performing.

because of a thermal issue?.

you say that you use 3DMark and have recived bad results since your upgrade and still with your old processor.

have you tried Wprime to bench mark your cpu only and compare to other T7500 or T5250 results to rule out a cpu problem first.

regards

John.

 

A few things:

1. Processors have little impact on 3DMark scores.
2. Since you messed with the processor, and then this problem occurred, Acer could very well void your warranty.

 

Weird. I don't think it's a compatibility issue. I installed an T7500 in my 5920-6313 and haven't had any problems with it. Intel Thermal Analysis Tool showing both cores at 47C. I even did a really shoddy job on my thermal paste. I was out of Arctic 5 so I used a cotton swab to steal some from the CPU's in my junk pile. The final blob was about the size of a grain of rice.

I would (at your own risk) take the back panel back off and turn the laptop on. Check that the cooling fan is spinning up fully. Double check its wire and make sure they didn't get pinched/nicked and that the connector is fully seated.

Next run the Intel Thermal Analysis Tool and wait for the CPU to get hot (70C+) and check to see if the heat sink block is getting hot and transferring heat off the CPU.

Good luck.