thecondor
02-23-04, 03:04 PM
There are plenty of reports about the heat producing properties of the Intel Prescott processor. Be that as it may, I wanted one to experiment with, especially SETI performance, and got one of the 2.8e’s from New Egg. When it arrived, I hurriedly slapped it in, booted up, started SETI and watched my temperature monitor soar to 82 deg. C. I quickly shutdown and gave the situation some thought. This has got to be manageable, and sure enough, it is….even on air.
The first thing I did was take off my SLK 900 U and replaced the tab clamps with the
screws and compressible springs. I then lapped both the heat sink and CPU surfaces to a good mirror finish, applied new Arctic Silver 5 and assembled everything back onto the Motherboard. This is a dual channel MSI 875 Neo2, which comes with heat sinks already on the power regulation MOSFET’s.
The second thing I did was to reconsider the 92 mm fan. I had always thought the center was too big and the overhang too much to be really effective, however it worked just fine on the 2.6c. What I did was really counterintuitive. I decided to use a YS Tech 70mm TMD type fan. The overhang is small and the flow is not masked by a large center motor.
Finally, I enlarged the side opening on my case to accept a 120mm Vantec Stealth. This fan puts out 53 cfm and is very quiet. I have no other case fans except what is on the Enermax dual fan power supply.
Here are my current results. From the original 61/82 deg idle/load, I now have a very manageable 40/57 deg. In addition, this is all on air and is just as quiet as it always has been. The temps may drop a little as the AS5 works in. The SETI performance is much as TC has described without the water-cooling hassle. I get 22 wu per day at 3290 mhz and 24 per day at 3500 mhz. The 3500 mhz is at 250 fsb and puts the Adata Vitesta PC4000 right on spec. The Vcore is 1.375, Vdimm 2.8. in both cases. I’m sure there is more to go, but this was just to show that the Prescott can be tamed when you rethink what you are doing and try some new things.
The first thing I did was take off my SLK 900 U and replaced the tab clamps with the
screws and compressible springs. I then lapped both the heat sink and CPU surfaces to a good mirror finish, applied new Arctic Silver 5 and assembled everything back onto the Motherboard. This is a dual channel MSI 875 Neo2, which comes with heat sinks already on the power regulation MOSFET’s.
The second thing I did was to reconsider the 92 mm fan. I had always thought the center was too big and the overhang too much to be really effective, however it worked just fine on the 2.6c. What I did was really counterintuitive. I decided to use a YS Tech 70mm TMD type fan. The overhang is small and the flow is not masked by a large center motor.
Finally, I enlarged the side opening on my case to accept a 120mm Vantec Stealth. This fan puts out 53 cfm and is very quiet. I have no other case fans except what is on the Enermax dual fan power supply.
Here are my current results. From the original 61/82 deg idle/load, I now have a very manageable 40/57 deg. In addition, this is all on air and is just as quiet as it always has been. The temps may drop a little as the AS5 works in. The SETI performance is much as TC has described without the water-cooling hassle. I get 22 wu per day at 3290 mhz and 24 per day at 3500 mhz. The 3500 mhz is at 250 fsb and puts the Adata Vitesta PC4000 right on spec. The Vcore is 1.375, Vdimm 2.8. in both cases. I’m sure there is more to go, but this was just to show that the Prescott can be tamed when you rethink what you are doing and try some new things.