The Official OC (OverClocking) Thread!

im: Three 8800 Ultras and an overclocked, watercooled Quad core CPU, with four hard disk drives require about 900W from the mains, which means they're drawing about 800W from the PSU at most. Are you ever going to have a setup this demanding? I doubt it. If you want a powerful futureproof PSU consider the Zalman ZM-850-HP. Whisper quiet, mega powerful units.

 

unfortunately the rebate expires today...
btw, any luck with the overclocking?
-im1992

is that zalman actually that quiet?
i cant stand extra noise!
the OCZ unit that GM recommended is also very loud (according to most reviews on newegg)
-im1992

 

Spammer,
Sorry no luck with the Striker/Q6600.. got some cheapy RAM coming.. I needed it anyway. I would look up some sort of review before you buy anything new in a psu... I'm no expert and I haven't had very many psu's in total. I wouldn't have a problem with Corsair or Zalman for that matter but like I said I haven't had that many psu's.

Gonna do a "shine" job on a heatsink and see if it helps with heat dispersion.

pic #1 <<< with all the nasty after removal.

pic #2 BEFORE the shining... lol

MORE to come later once it's "done".

....gm

 

Zalman's Ultra Heatpipe units are actually the quietest fan cooled PSUs money can buy. Quieter than Corsairs, quieter than Enermax Modu82s, quieter than the lot. The only shame is only the 850W and 1KW units are this quiet, the 600W unit is generally pretty mediocre.

 

agreed 100%

BTW what does any of this have to do with OC'ing? oh OC'ing the fans on our coolers.....lol

can we have our PC building thread back???

 

you gonna lap the heatsink?
you also gonna do the q6600?
i am thinking of doing my q6700 cause its really, really convex...yes, convex which is weird cause most ppl get a concave IHS...

@sam,
thats weird....that Zalman, renowned for their quiet components, has a noise PSU on the market
the 500 watt and the 600 watt PSU that i have from Ultra (even tho one of the 600watt PSUs failed) are EXTREMELY quiet....i CANNOT hear them at all!
-im1992

 

Indeed, but some people can't hear Zalman coolers at full speed... Silence is relative.

 

i dont think i have that bad ears....lol, not deaf!
-im1992

 

What speed does your 9500 run at then? Primarily due to their poor noise signature I find Zalman coolers irritating above around 1000rpm, they max about 2500.
If you think I'm just being picky, it's intentional. A lot of people who don't mind noise much place something relatively quiet as being 'silent' or say 'I can't hear it at all' - when someone comes along who really is looking for a silent product, they can be misled by these reviews.

 

my CNPS 9700 runs at 2773RPM
don't know about 9500 (not my comp...)
-im1992

 

Lol then why is it in your sig?
As for the 9700, that's an outrageous amount of noise, no wonder you can't hear your PSU, you wouldn't be able to hear a noisy PSU underneath that, let alone a quiet one!

 

sam,

we've been through this before. the 9500 and 9700 are not in the same ballpark as the 7000 and 7700, cooling wise or noise wise. I've used both a 9500 and a 7700 and there is no comparison in cooling and noise.

there are a lot of nice/high OC's with ppl using a 9700 and their temps aren't much higher than those with the same set up and OC using a TR U120E. you sure see a lot of 9700/9500 users for them not being very good.

 

im1992,

If he does, I'll personally certify GM! LOL!! It voids the warranty!

Russ

 

I have both a CNPS 9500 and CNPS 9700 and except for the LED's on the 9700 one can't tell them apart, because they are essentially the same unit. The sound rating for the 9500 is really quite decent (18.0 ±10% - 27.5 ±10% dBA).

 

I take silentpcreview quite seriously as a silencing manufacturer, and they bench the two coolers at around 35dB and 40dB respectively. With the SFF21F at only 31dB full speed, that's noisy. Think logically about it, there's no way a 110mm fan at 2700rpm will be quiet!

How powerful the coolers are has nothing to do with it, the CNPS9500 and CNPS9700 are noisy at full speed, no way around it. For what it's worth the Freezer 7 Pro is just as noisy at full speed, for the same reason, fast fans aren't quiet. All three of the coolers still work very well when undervolted, and are much more tolerable. Full speed though, it's a different story.
Oh, and for the record, no the 9500 isn't quieter than the 7000. It's a much better cooler, but it's just as noisy.

 

my mom's, cant mess with it tho....
i think that the CNPS 9700 is very quiet compared to other heatsinks on the market today (well, if you use the speed controller)
i dont / cant use the speed controller because with the Quad it would be useless to use the lower speeds...

Tomshardware used the CNPS 9500 and CNPS 9700 for years as their reference for a reason.

btw, which cooler do you have?

best regards,
-im1992

@Sophocles
the CNPS 9500 and the CNPS 9700 aren't the same cooler!

CNPS 9500 = 90mm fan
Spec
Type Fan&Heatsinks
Compatibility Sempron
Athlon 64
Athlon 64 X2
Athlon 64 FX-62
Bearing Type 2 Ball
RPM 1350-2600±10 % RPM
Noise Level 18.0-27.5±10% dBA
Color Transparent
LED Green
Heatsink Material Copper

CNPS 9700 = 110mm fan
Spec
Type Fan&Heatsinks
Fan Size 110mm
Compatibility Intel LGA 775 , AMD Socket 754 / 939 / 940 / AM2
Bearing Type 2 Ball
RPM 1250-2800 RPM
Noise Level 19.5-35 dBA
Power Connector 3 Pin
Color Transparent
LED Blue
Heatsink Material Copper

best regards,
-im1992

 

Sam has a Thermalright Ultra 120A Cooler w/ Nexus Realsilent 120mm fan .

 

Your mum's PC has an 8800GTX?



The CNPS7700 actually only ended up at 38dB full speed, so it's quieter than the 9700...

Using my ears as a rough guide, I would put the CNPS7000 at 38dB too. SPCR didn't bench this cooler for noise accurately as it's so old, but since it uses a 92mm fan like the 9500 at 2700rpm (marginally higher) in a similar environment, I figure an extra dB sounds about right.



im, I use a Thermalright Ultra-120A with a Nexus 120mm fan, which on the SPCR scale comes in at 22dB. Using a low speed fan like this, its cooling performance is similar to the CNPS9700 at full speed, but obviously without the racket...

 

Not mine. Sam you're reading an online review by people who have a single prototype and nothing more. I read the same review some time ago. Here is a quote.

You will note the positive things said about the 9500 and then a complain regarding the noise of the 9700, although they give good marks for cooling. I purchased the 9700 for folding and nothing more but the 9500 still sits on my Opteron 175 system which was my main rig back when brobear started the first AMD vs Intel thread. I also have and Arctic cooling freezer 7 on another rig and it is noisier than both zalmans.

Part of what keeps a case quiet is how well it's setup to dampen sounds. As a trained although non practicing recording studio engineer I've come up with a few simple steps that does wonders. Never secure two vibrating sound objects together without using a dampening material because they both become amplifiers. High frequency vibrations will travel mostly in a strait line but are highly reflective and will reverberate along those strait lines unless they encounter impedance. Low frequeny vibrations are omnidirectional and will travel in any direction with reverberation but are not that usual in a PC case.

 

that is a nice cooler all things considering, also quieter than the CNPS 9700....but not by much
http://www.xbitlabs.com/articles/coolers/display/thermalright-ultra120ex_6.html#sect0

best regards,
-im1992