Pentium 4 670 @ 3.8GHz (Prescott)

[Charlemagne_3]

OK, so I'm throwing the cpu in the title into a computer. Its its LGA775, and is the best the mobo can handle. However, I am a little worried about overheating, just because of the high clock speed and the fact that its a prescott. However, the stock heatsink in the computer is rather nice, and performed well on a 3.2GHz Pentium 4. This was an 84W cpu. Some models of the same computer even shipped with a Pentium 4 540, which was 3.60GHz and the thermal design was 115W. The 670 I want to put in is also 115W. So does anyone think that there could be heat problems? This computer would not run frequently, might do some gaming, but could be given breaks as well to alleviate stress. Mainly just used as an extra computer for LAN parties for people without one.

I don't really think the the cpu would fry in seconds or anything like that, but I do know that prescotts are notorious for bad heat dissipation.

The heatsink in the pc is fanless but has copper components. Here's some pictures:

http://ecx.images-amazon.com/images/I/317rFwhsp8L.jpg
http://www.txcesssurplus.com/catalog/DELL-G8113-Front.jpg
http://www.computerpartsnmore.com/store/prodimages/CPNM-Fan-W4254.jpg

You can see that there is a nice copper area sitting right on the chip that connects to the copper pipes within the aluminum. So its a pretty decent heatsink.

Does anyone think my fears have any merit?

 

[mdd1963]

I would use *at least* the proper factory sink designed for that processor with a good, well-circulated case, and high quality thermal paste; 3.8 G Prescotts were notorious for clock throttling even under normal gaming loads. I could not even fathom a true, fanless sink for the highest clocked Prescott...unless you had 120 mm fan blowing nearby on it...

 

[Charlemagne_3]

I would use *at least* the proper factory sink designed for that processor with a good, well-circulated case, and high quality thermal paste; 3.8 G Prescotts were notorious for clock throttling even under normal gaming loads. I could not even fathom a true, fanless sink for the highest clocked Prescott...unless you had 120 mm fan blowing nearby on it...

By proper factory heatsink, you mean the intel version, not the one that came with the system right? I was also worried about the fanless nature.

 

[IntelEnthusiast]

http://click.intel.com/FCLGA4_A_LGA775_Fan_and_Heatsink-P1173.aspx here is the replacement HSF (heatsink/fan) for that processor. This is the least HSF option that I would use on that processor.

Christian Wood
Intel Enthusiast team

 

[mdd1963]

It is hard to discern from your post which sort of sink you are contemplating using; I only gathered that it was from:

a lesser clocked CPU, and...
was fanless....
not designed for cpu to be used?

 

[Charlemagne_3]

It is hard to discern from your post which sort of sink you are contemplating using; I only gathered that it was from:

a lesser clocked CPU, and...
was fanless....
not designed for cpu to be used?

Basically. The sink I am using is in the pictures. It was on a 3.2GHz prescott, 89W TDP, (thats what is in the pc now).
The same exact heatsink is also used on versions of the pc that ship with a 115W TDP 3.6GHz cpu.

That's about it.

So I am trying to estimate whether or not the fact that it was used on a 115W 3.6GHz cpu means that it will work on a 3.8GHz 115W cpu.
Or if perhaps the company was stupid and the heatsink didn't work well on on the 3.6GHz cpu.

What I know for fact is that it works well on a 3.2GHz 89W cpu.

http://click.intel.com/FCLGA4_A_LGA775_Fan_and_Heatsink-P1173.aspx here is the replacement HSF (heatsink/fan) for that processor. This is the least HSF option that I would use on that processor.

Christian Wood
Intel Enthusiast team

Thanks for the link, I will definitely buy one of those if I deem it necessary and worth the money for the upgrade.

Also, is this that fan?

http://www.ebay.com/itm/NEW-Pentium-4-Copper-FAN-630-640-650-651-660-661-670-/320620367259?pt=LH_DefaultDomain_0&hash=item4aa6768d9b#ht_1309wt_1031