Just got the FOP38 in the mail

[Cable]

hmm, 44 degrees c... is that correct? with my other alpha pep66 which wasn't even meant for a socket a cpu i was getting 50 degrees c. please tell me that with this fop 38 im supposed to be getting this temp. thanks!

 

[Mikewarrior2]

Once again, you can't rely on socket A cpu temp readings. THey use a thermistor underneath the socket, which in no way measures or gets a good idea of what cpu core temp is(which is what you want to measure).

Other than that, did you cut the feet off the PEP66? They should be roughly the same temp, with the PEP66 beign slighly better.


Mike

 

[Cable]

yes, i cut the feet off. you're joking right? the pep should be slightly better? the fop was made for a socket a, the pep was made for a socket 370 chip. i think if it was better you would see a lot of people using their pep66 for their duron/athlon's. i haven't heard of one person besides me still using a pep66 to cool their duron/athlon. i have heard of numerous people cooling their chips with a fop 38 and reaching a ghz easily. thanks for your comments.

 

[Mikewarrior2]

the pep is a better heatsink... NO kidding, it should work just as well for duron's as it does for p3s.

I think one reason you don't see a lot of people using it, is the cost, and general lack of availability recently. And the fact that htey have to cut the feet off when they can just get another heatsink and it'll work fine.


Mike

 

[Cable]

it doesn't work just as well as a fop. the pep was keeping my chip at 50+. it never went below 50. the highest ive seen it go was like 56. thats how i know for a fact that the pep isn't good for a socket a cpu. and yes, i was using thermal paste. a light layer at that too.

 

[Technonut]

Just for the hell of it, throw the Delta 38CFM on the Alpha and try it out. You may be surprised. Set the fan to suck through the Alpha, not blow against it. My Alpha 6035 with a Delta cools better than an FOP38 that I have. (Confirmed by a Digital Doc3, not the mobo sensor) The same was true on both Durons and T-Birds that I tested. I would be interested to see if your results with the PEP66 & Delta are similar to mine with the 6035 compared to the FOP38.

 

[DaddyG]

Ryan,

The problem with your PEP is probably related to clip pressure. Socket 462 requires 12-20lbs pressure to handle the heat. Socket 370 specs much lower. While your thermistor readings are not accurate, they lie consistently.

 

[basara318]

this is off topic but.. ryan did u get my mail about the usb zip? i still havent got it yet!!!!

 

[Fish54]

Guys, let's remember that the PEP is a very different cooler than the 6035! I don't doubt that the FOP can outperform the PEP, even if just slightly. As fopr the CPU temps, I get around the same with my FOP, and it's well within spec for these chips. BTW, Mike, I really think that you are a bit too critical of the thermistor onder the core. I agree that it will be slightly off, but don't forget that that space under the chip isn't exactly ventilated, and the thermistor is very close to the core. I have a thermistor sitting right on my core and I read temps within 2 degrees of the thermistor...and if you are using MBM4, you can always adjust the temps by 2 degrees or whatever. Just my 2 cents.

 

[Mikewarrior2]

Have you done any experimenting on this? I did it with a p3 on a cusl2 versus a soyo 7VCA(which uses a thermistor). Do you want to know what the difference was? 12 to 15C. That is a huge difference. iT isn't something as simple as 2C. A under socket Thermistor isn't even close to core temp.

If people constantly go aroudn believing the under thermistor temp as their actual core temp, they coudl run into problems later. If you want to believe that temp as the absolute core tmep, then be my guest. don't mind me if your cpu is actually running a lot hotter than that thermistor says it is.

Might I also add that thermistor based solutions don't correctly display changes in cpu temp. It does not take 5 minutes to go from full load temp to idle temp or back. It takes no more than 15 seconds.

Mike

 

[Cable]

yeah i noticed that there is a lot of pressure going onto the cpu. do i need to put thermal grease on the hsf again? there was already something when i peeled off the adhesive strip under the heatsink. please let me know if i should put more heatsink grease.

 

[frastini]

if your fop is not fop32-1 then it has a little lip at the end of it
which pretty much prevents it from making good contact with your cpu..

i've had this problem, and the fop nearly destroyed my duron (crakced a fat chunk of the silicon off the cpu)

file that lip down if you have it.. easiest way to tell is the fop32-1 i beleive is silver.. the fop32 i have is black