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Two versions of 3GHz+ Prescott heatsink?

Z

Zucarita9000

Golden Member
So my friend bought a new PC last week, with an Asus P4P800 SE mobo and a 3GHz Prescott. When I went over his house to check it out, I was amazed at seeing that the idle temp. was between 55 and 65ºC, WTF?!?

I thought that something was wrong, so I run Prime95 and the temp went to almost 74ºC in under 5 minutes. Playing some WMV HD content also put the CPU over 70.

I immediatelly started checking the insides of the case, and saw that the heatsink that was installed was not like the one I got when I bought my 3G Prescott. Mine is oval-shaped, with a large fan with a Nidec motor. His HSF is rectangular, with fewer fins and a fan with a Sanyo Denki motor. I belive this is the one that comes with Northwoods or sub-3G Prescotts.

Whe he called the computer store that built the rig, they told him that 3G Prescotts come with two different HSF versions. I'm not sure if it's bullsh*t or if they're telling the truth.

The case has 4 80mm fans, and the ambient temp. inside the case is around 25-30º, quite normal.

BTW, I noticed that the fan speed was constant at ~2100RPM, even at full load at 74ºC. I was further concerned by this, as I've seen my 2.8G Northwood fan spinning at around 4000RPM at full load.

I believe my friend got screwed over, so I'll be at his house tomorrow checking everything and installing my spare HSF (I've never used it, as I got a Zalman).

 
Well a few things here...First thing would be to remove the HeatSink fan assembly and make sure you are getting good contact between the heatsink and processor.

Another thing is alot of Asus boards allow you to adjust the heatsink fan speed...Nice feature to tame screaming TT and Delta's...But probably something you would not want to use with a stock heatsink fan combination.

I would go to Artic Silvers site and carefully read the application instructions, remount the heatsink fan with some Artic Silver 5 remove it to make sure it is making good contact and then put it back on...Check the BIOS and make sure the fan is running at 100%.

Also I find that some motherboard manufacturers temperature readings to be completley bogus...Abit comes to mind...I am not really sure about the Asus board in question but I would do some research and find out if that paticular board has temperature reading issues...Sometimes new BIOS revisions will correct temp readings.
 
That's exactly what I'll be doing tomorrow. Reinstall the HSF with some AS5 and see what happens.

Asus Q-Fan is disabled, so the fan should go all the way up at full load, but it doesn't.

I believe Asus has some pretty accurate temp. readings, but I could be wrong. I've read about the Abit and MSI problem, but never heard anything regarding Asus.
 
So this morning I went over his house to re-install the HSF. The tech that built the rig is a silly, silly man. The idiot left two stickers on top of the CPU, wich was preventing the heat transfer to the heatsink. Pic here.

So, I took some isoprophyl alcohol and cleaned it up.

I also replace the heatsink with the one I got when I bought my 3G Prescott and applied some Artic Silver 5. The HSF is very different than the one he got, as you can see in this pic here.. Mine is on the left, his is on the right. As you can see, mine has more and thinner fins, and a bigger copper core.

The temps. went down 20ºC inmediatelly, and after an hour of Prime95, it never passed 60º, so everything is good now.
 
LOL!!!!

How the hell do some of these people get jobs doing computer stuff is beyond me.. Sheesh, stickers on a CPU die... Now I've seen everything. 😀
 
It probably has something to do with those stickers, whatever they were and wherever they came from. Sounds like that company is running some kind of rip-off business.


Is the company named ComputerMan? That's what the stickers say, don't they?

Just curious.
 
Originally posted by: emilyek
It probably has something to do with those stickers, whatever they were and wherever they came from. Sounds like that company is running some kind of rip-off business.


Is the company named ComputerMan? That's what the stickers say, don't they?

Just curious.
Click to expand...

Actually, the computer store is CompuMar, one the largest here in Argentina. They told me that the sticker is used to track the item for warranty purposses, and that it should have been removed by the tech prior to the system build. However, it seems that the idiot forgot to remove it, wich caused the heat issues.

Something similar happened to me when I bought my CPU. The guy didn't put a sticker, but he wanted to write something on top pf the CPU with a marker. I asked him if it was really necesary, and convinced him to use the serial number instead.

As for the heatsinks, I'll have to check my cousin's rig. He also has a 3G Prescott, and if he has the same heatsink that my friend, it should be ok (unless of course, they screwed my cousin too!). They bought the stuff from different retailers.
 
I have a 3.0 Prescott and it has the round HS like yours. I don't think you would have any problem with the one he received, but I would replace it with a Zalman 7000 AlCu or Cu, as I did on mine. Keeps it 38/39c at idle and 48/49c at load.
 
Originally posted by: wisdomtooth
Sheesh, stickers on a CPU die... Now I've seen everything. 😀
Click to expand...

LOL, I've seen this before. Used to be pretty common with 486 CPUs and I've seen some even on socket 7.

For the OP, I have seen different retail box HSF packed with otherwise identical CPUs from both Intel and AMD. The big temp difference was probably from cleaning up the CPU and removing those stickers.
 
So my friend bought a new PC last week, with an Asus P4P800 SE mobo and a 3GHz Prescott. When I went over his house to check it out, I was amazed at seeing that the idle temp. was between 55 and 65ºC, WTF?!?
Click to expand...

I have a P4P800SE myself also with a 3.0GHz Prescott... I have the stock Intel cooler that came with my retail P4 Prescott (I think it's round or oval).

My CPU idles at 47c. I have one 80mm intake, two 60mm exhaust, the PSU exhaust fans and a slot fan. I don't consider my case "quiet" by I don't consider it distracting or loud either.

When I saw the pic of the stickers on the CPU, I thought that was pretty amazing!
 
Don't they buy boxed processors from Intel? Mine didn't have a sticker on it.

It raises the question of where they got the processor, if it didn't come in an Intel box; if they are supposed to get them that way, anyway. =p
 
Originally posted by: emilyek
Don't they buy boxed processors from Intel? Mine didn't have a sticker on it.

It raises the question of where they got the processor, if it didn't come in an Intel box; if they are supposed to get them that way, anyway. =p
Click to expand...

Yes, it is indeed a boxed retail CPU. He has the box and the certificate of authenticity. The sticker was placed by the idiot that put the rig together, but have no idea why.
 
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