Hello all,
I purchased the AVC Sunflower a few days ago and I just recieved it. Looked good so I installed it. Well lets put it this way, it sounded like a tractor!

I used a program called SpeedFan tell me exactly what the RPM was and it was over 5400RPM's. Not only that, the temperature was much higher then stock intel fan that only rotates at 3200RPM.

Here is a picture of the cpu heatsink:


I did exactly what they said on the site. The only thing what I do not get is why the fan was blowing out air instead of blowing onto the heatsink,

Does anyone own this heatsink, am I doing anything wrong?

Yes I own this heatsink. It droped my temps around 10c from the stock heatsink. If the fan is not blowing onto the heatsink there is something wrong iwth it and i would return it. It is supposed to be blowing onto the heatsink. Did you use artic silver or the thermal compound that came with it/ You should look into artic silver 3.Another thing is you might have put too much thermal compound on the heat spreader. You only use about a rice grain size amount and then spread it out.Yes the rpm's are higher and that will make it louder but it reall works if used properly.Defently need to contact the company that you got it from and ask them about returning it for an exchange if it is not blowing onto the heatsink.

Yeah this blows air out of the heatsink not onto it!!
Thats the fricken problem!
Damn it never trust ebay.

Well as odd as it may seem, they may have put the fan on backwards during construction

You can try removing the fan and reversing it. The majoirty of sinks(excluding the Alpha PAL's) blow onto the heatsink and that reversal will defintly cause you some higher temps.

Thanks again biohazard

Yeah but I just figured something out.
The heatsink and the fan came oem. The holder for the fan above the heatsink that clamps to the board is a generic one. Meaning the seller just attached it in himself as the picture of the frame is different.

I have been reading up on this HS.

First off, it's a medium performer, not bad, but definitly not the best.

Second, I have seen no mention that it is designed to have the fan blow up, instead of down, I think it's on backwards, or wired backwards.

Most reviews said it was noticably louder then a Stock P4 Intel cooler. Sorry, it's just not quiet and it is difficult to replace the fan with another type.

Lastly, most of the reviews I read had this cooler running on a much older P4, like old 1.5gig Wilhametts. I can not say that this cooler would not be overwhelmed by much hotter 2.4 gig and faster Northwoods. Had you asked before buying it, I would not have recommended this HS. I would have sent you to the companies that we all know build the best gear.

Swiftech
Thermalright
Alpha

These guys make the best, all you have to do is decide which one is right for you.

Hey lcpiper could you reply to my pm's i really need some amd advice...TY
Gladiator, sounds like you got a fake avc sunflower in my opinion, buy it retail package from a reputable seller

lcpiper
Thank you for your help.
yes I switched the fan back to the correct side yet the preformance of it did not increase. In fact a 1.7ghz got close to 55C while idle yet my stock is at 38-40 C while idle.

I will be upgrading to a 2.0ghz, which is the best heatsink to go with out of the 3 that you suggested is sound if an issue.

Thanks

On my p4 2.4 northwood under full load gamming I don't ever go above 54c. I am folding and surfing the net right now and I am at 47c if I turn off folding then I go down to under 40c. I think you got ripped off with this fan as it is not the real one that is supposed to be with the heatsink. What did you use for thermal compound?If it were the real fan on it I would offer to buy it off of you but since you are getting crappy temps I think there is somethign wrong. You never anwserd about the thermal compound.

I used the thermal compound that was sold with my P4.
Not sure the brand, and I didnt use that much, just enough.

Bio, the fan is marked to be AVC and the heatsink looks real as well its just the frame that holds the two together is generic.

Bio I am selling it on ebay:
http://cgi.ebay.com/ws/eBayISAPI.dll...tem=3401887574

I just spoke to the seller, this was his reply:
Hi,
I see the difference in top flame of fan.
The one in your picture looks more efficient.
I did not know it.
I thought they are same.
These cooler are made for Compaq.
Big carton box has Compaq P/N.
I bought them at local freight auction.
I did not know they use different top flame.
I better use my own picture in the future listing.
I apologize for my mistake and thank you for pointing it out.

Sounds like the biggest issue might be that the frame was designed / modified for use on a Compaq that may have a proprietory Socket, or Mounting Bracket, which would mean that it doesn't fit correctly on a standard Mobo. Or maybe it's just made crappy.

I suggest that you ask the guys here that have good HS for their P4s. Just make sure they also tell you what spped CPU they are cooling.

It does no good for a guy to tell you that X HSF is great when cooling his P4 1.6Gig when you need to cool a 2.8Gig chip.

I currently have a 1.7ghz p4 478
I am purchasing a 2.0A with 512 l2

Whats the best I can go with where sound is an issue and no low preforming zalman.

I was looking into the MCX4000 from Swifttech:

http://www.swiftnets.com/products/mcx4000.asp

But they sure are expensive at 50 bucks without the fan

Frozen CPU Swiftech MCX4000

Frozen CPU Alpha PAL8942

VANTEC AeroFlow VP4-C7040. For Intel P4 478. Retail at Newegg.com for $33.00 with Y.S. Tech TMD fan.

Thank you very much lcpiper!

No problem, course if you give it a little more time, like till tonight, BA and some of the others will be on and may have some other suggestions as well.

Yes, What I think I will do is order a Swiftech MCX4000 with a Y.S. Tech TMD fan but only thing is, is the fan runs at 69 dba according to Overclockers.com:

http://www.overclockers.com/articles603/

What should I do?

any suggestions?

Has anyone seen the MCX4000T.
The retail of the heatsink is almost 100 dollars!

Here is a link:
http://www.swiftnets.com/products/MCX4000-T.asp

For 100 bucks it has to rock?