Zalman CNPS6500B-CU P4 Socket 478

Ronaldo7

Hi,

Anyone have this and if so what do you think of it?

I have a chieftec full tower case and im wondering if it will fit in it? What do you think?

unkel

Get the Zalman 7000Cu m8

RicardoSmith

Originally posted by Ronaldo7
Hi,

Anyone have this and if so what do you think of it?

I have a chieftec full tower case and im wondering if it will fit in it? What do you think?

I had one and it was very good. But its an older model. The new range is the 7000's. The only thing that the 6500 do better is that you can use any fan on it. But from what I've seen the 7000 cools better.

Ronaldo7

Excellent. Thanks for the advice...


7000 it is.

Cheers...

OfflerCrocGod

For the best cooling get a thearmalright - can't be beaten. That web site is in french when it first pops up just click on the british flag.

Ronaldo7

i want something quiet and what will also cool. How does that thermalright compare to the zalman 7000?

RicardoSmith

Actually the thermalright ones perform much the same as the Zalman 7000.

http://www.silentpcreview.com/modules.php?op=modload&name=Sections&file=index&req=viewarticle&artid=132&page=1

OfflerCrocGod

Firstly you are stuck with the fan that comes with the Zalman you cant change it. Secondly that review was flawed:

I reiterate my earlier comment: The 7000ALCU sample probably has a slightly more efficient fan than the one on the 7000CU sample. No other explanation really makes sense. Sure, they could have the same cooling performance if the heat source does not cause thermal overload on either, but to have the hybrid outperform the all-copper? The difference must be in the fan; in the materials, the copper one has the clear theoretical superiority.

The HS that should have been at the bottom of the pack was at the top!!!:rolleyes:; another flaw with the review was placing an 80mm fan on the thearmalrights no one would do that you would put a 92m fan on it. This here is an exelent (German) review using 80 and 92 fans the diff is 5C between the two so knock off 5C for all the thearmalrights in the above review. The benifit of the TR is the fact that the fan is all up to you you can get a nice whisper quiet 92mm fan or the Tornado:eek:. The Zalman fans are not really that quiet unless you turn them off .

RicardoSmith

The review you link to doesn't even have a 7000 in it! (So whats the point of that?)

The quietest fans are 80mm not 92mm fans so that why they are being used. Even your linked article says that. The SPCR review is about silence not absolute cooling power. You seem to be ignoring that. As for the quote about the ALC outperforming the CU one. For some reason in all the reviews I read the copper one only has a little advantage over the AL one. So if the fan was slightly better on one that the other (and theres always a little variety in these things) then that easily accounts for the AL one doing better in this review.

Zalmans aren't the quietest fans, no, but the fan on the 7000 is known to be quieter than the standard Zalman fans. Probably because theres no frame around the fan and also the circular HS on the 7000 reduces the turbulence you get pushing air from a fan through a HS. The 7000 has a big surface area which is why it cools so well using the fan that it does. Its a 70mm I think.

I agree that having a HS that you can put a standard fan gives you more flexibility than one with an integrated fan, but in reality fans very rarely fail so it really a minimal advantage over the 7000. A specialist fan, like a papst or similar and the Thermaltake are a lot more expensive then the 7000. So the 7000 gives you much better value for money. Then theres the fact that the 7000 can be used on AMD Socket A/Intel 478 and AMD 64 sockets. So you can move it to another rig in the future.

Personally I've given up on getting a completely silent PC. If I can get it very quiet then I'd be happy. Getting it silent costs a fortune, and every new component has a 50/50 chance of being quiet. Overall I think the 7000 is a great quiet HSF combo for the money. Only thing to look out for, as with all large HS is does it fit your motherboard?

Ronaldo7

with all large HS is does it fit your motherboard?

I have a MSI 648 Max...do you think it will?

RicardoSmith

Originally posted by Ronaldo7
I have a MSI 648 Max...do you think it will?

The Zalman website has a list of motherboards that it has problems with it. You'd have to check there.

OfflerCrocGod

I was pointing put that the 92mm fan could cool about 5C better then the 80mm fan.....and the review you linked to used an 80mm fan instead of a 92mm, I was just showing the superior cooling of a 92mm fan- get the quitest 92mm for the best performance.

RicardoSmith

Why not a 120mm fan then. That would perform even better?

OfflerCrocGod

Maybe......it would have to be one of the Magnetic ones because the dead zone on a 120mm would be HUGE and also the HS are not designed to actually take 120mm fans so you would afto jury-rig something up for it to accept such a fan........should not be a prob though.

RicardoSmith

The 80mm are still the quietest and cool enough even for most requirements even overclocking with a decent HS.

Ronaldo7

YAY my msi 648 is compatible with the zalman 7000. Nice one...:)

RicardoSmith

Originally posted by Ronaldo7
YAY my msi 648 is compatible with the zalman 7000. Nice one...:)

Whats the difference in price between it and a thermatake + fan?

OfflerCrocGod

Maybe an 80mm Tornado fan would be good enough for OCing but not just any old 80mm fan!; you wanna make sure you get a really high CFM fan......and they are of course NOISY. There is really no way around it Silent PCs are a nice idea but are VERY expensive:(.

OfflerCrocGod

Originally posted by RicardoSmith
Whats the difference in price between it and a thermatake + fan?

The price of the fan; the two HS retail at practically the same price. By the Ronaldo7 once installed dont move your PC to much cause the Zalman is very heavy and is not as securely tied in as the thermalrights.

RicardoSmith

Originally posted by OfflerCrocGod
The price of the fan; the two HS retail at practically the same price. By the Ronaldo7 once installed dont move your PC to much cause the Zalman is very heavy and is not as securely tied in as the thermalrights.

"tied in" - you shouldn't be using string on either...

OfflerCrocGod

:rolleyes: I didn't mean string it doesn't have a back plate like the thearmalright does; so it may not be very secure (it weighs more too).

Col_Loki

dont move your PC to much cause the Zalman is very heavy and is not as securely tied in as the thermalrights.

One thing to note is the ThermalRights have different versions....

There are versions that require 4 mounting holes around the CPU socket (think there the "U" version ie SLK900U).......these ones have the backing plate.
The other version the "A" version have regular clip mountings and dont require 4 mounting holes.

So if you get the regular A version then take heed in the advise given above for the Zalman, if not and its the 4 hole mounting then MAKE SURE your board actually has the 4 holes or it wont fit!!

because the dead zone on a 120mm would be HUGE

Yea theres no point in using a 120mm fan as temps arent as good, supprising difference!!

RicardoSmith

Thats why a 80mm fan is the sweet spot. 92mm fans just aren't as quiet.

Col_Loki

Yea thats what i thought aswell, the 92mm fan is far less efficient as it hangs over each side of the heatsink.

That was the finding of a guy who tested this out on his SLK900, will take me ages to find it again as it was months back i read it...........generally he was saying the 80mm fan performed better than the 92mm one.

Would like to see some tests myself as its something ive been wondering about.

Woden

is this cooling for a pentium or a athlon?

if its a pentium the high end thermal right product contains a heat pipe the model number is sp-94

if its an athlon the latest version with greatest motherboard compatibility is the 947u.

as col-loki mentioned it is the U version which mount around your motherboard and the A versions which clip on. these heat sinks pack quite a weight at about 0.5kg so i'd go for the bolted down U version if i had the option.

92mm fans aren't as quiet?

i was under the opinion that the larger the fan the quiter it was as the they can move slower and still push the same amount of air.

http://www.procooling.com/reviews/html/thermalright_947u_heatsink_rev.php

this review here shows a 80mm and 92mm tornado which have similar noise profiles, the 92mm wins due to greater airflow. so even if the fan is hanging over the side it still gives better cooling in this case. i use an enermax 92mm adjustable fan for my 947U available from www.hitide.ie

it pushes 64cfm at 34db at top speed, the 80mm fan does 39.8cfm at 38db

Col_Loki

Yea definetly the effect of the larger dead-spot with the 92mm fan seems to be almost non-existant with the SLK947.

Think the testing i was thinking about was using an SLK800 and the dead-spot seemed to have more effect....possibly the revision fixed this problem and spread the heat out from the core more efficiently.

For silence dont the 80mm fans still perform better?

Of the fans tested, I would recommend the 80mm NMB for quiet computing duty; the 92mm Stealth simply isn't up to the task of pushing air through the 947U.

Would definetly agree that the 92mm enermax fan is the best choice to accompany the SLK, great performance:Noise ratio and its adjustable.

Woden

i think its hard to compare 92mm and 80mm fans side by side alright, but typically for a given fan manufacturer there 92mm fans are quieter then there 80mm fans

for anyone interested in fan discussion for the thermalrights check out the forums on www.overclockers.co.uk search about and you will find peoples preferences.

in the case of the NMB it is louder then the stealth but the does seem to cool better perhaps due to the overhang and also due to the fact that the cfm difference between the two fans isn't enough to make up for this as is seen when changing from an 80mm to 92mm fan

OfflerCrocGod

Yep 92mm are better at higher RPM then 80mm it's because of that dead spot....does anyone know of a magnetically driven 92mm fan?. That sort of a fan would be ideal it would have a much smaller dead spot(smaller then an 80mm?) it could provide Full Spectrum Coverage:ninja:.

RicardoSmith

Originally posted by Dataisgod
i think its hard to compare 92mm and 80mm fans side by side alright, but typically for a given fan manufacturer there 92mm fans are quieter then there 80mm fans
.....

.

Don't agree with that 92mm fans are always quieter. The only reason you'd use a larger fan is because you want to move more air. Even that article says that unless you are using a more powerful 92mm fan (and thus louder) then you might as well have a 80mm fan which cools just as well as the quieter 92mm fans and is quieter as well. Bigger fans move more air thus create more turbulence thus create more noise.

Do you guys even read the links you post?

Some manufactures are moving to 120mm fans in cases and in PSU's. But unless you 7v or 5v them, they aren't as quiet. Many 120mm fans won't start unless they get a full 12v. So undervolting them isn't always possible. Overclockers forums generally rate the 7000 HSF pretty highly. Many are happily using them with their overclocked P4 and AMD rigs. Personally I'm a big fan of the Papst fans. I reckon they are the quietest you can get. Pricey though. I've had a couple fail too.

Woden

no they may not always be quieter but for a fixed cfm a 92mm fan should be quieter than an 80mm fan as it has to rotate at a lower rpm to achieve the same cfm.

a possible disadvantage though as mentioned is the airflow is over a larger area and may not be concentrated on the area you are interested in cooling.

i picked the 92mm fan as it was quieter then the 80mm fan and moved more air

RicardoSmith

Like I said 92mm move more air but 80mm are quieter. Depends which is your priority.