Alphacool 1/2" NVXP-3 ATI Waterblock?

ElMoIsEviL · 02-01-2006, 11:14 AM

Is this block any good?

I'm about to order two of them and was wondering if they would be a good performing block?

Any thoughts?

Eddy_EK · 02-01-2006, 11:33 AM

Please don't use that flowkiller...

ElMoIsEviL · 02-01-2006, 12:38 PM

It's it's combined with two MCP655's on the same loop as a Black Ice Xtreme II and Black Ice Xtreme as well as a Swiftech MCW5002-T and Criticool Waterplant... do you think the flow rate would still be significantly low?

ElMoIsEviL · 02-01-2006, 03:02 PM

Well I've bought two.

They will cool down my X1900XTX Crossfire rig once I get the X1900XT Crossfire Master card.

Etacovda · 02-01-2006, 05:58 PM

if two of those dont at least halve your flowrate, id be surpised.

edit - with two mcp655's it probably wont be halved

but ouch..

Long Haired Git · 02-01-2006, 06:48 PM

Do us a favour, hook it up with a short run of tubing to a single MCP655 and do the timed-bucket-fill flow rate test and let us know the results.
Then retest with two of these blocks and one MCP655.
Then retest with both blocks and both MCP655s.

Three points will give me an approximation of the PQ chart.

ElMoIsEviL · 02-01-2006, 08:39 PM

I'll do that as soon as they arrive.

They're coming from Germany and I'm in Canada.. a tad bit of a journey.

BillA · 02-01-2006, 09:46 PM

put in a separate loop, but pointless to WC ram
NO demonstration of efficacy that I have ever seen (e-penis stuff aside)

ricecrispi · 02-01-2006, 10:09 PM

mod it!

Time to cut into some plastic.

ProHandyman · 02-01-2006, 11:30 PM

Quote:

Originally Posted by ricecrispi

mod it! Time to cut into some plastic.

The "I can't leave it stock" in me would agree... looks like the passages are 6-8mm... less then half of the 1/2" inlet...possibly with a good milling machine and some patience...

Though I do believe Ed's block has a much higher flow rate, with a somewhat similar design?

And yes, I know watter cooling the RAM is more "Bling" then function.

ricecrispi · 02-02-2006, 03:48 AM

Selling the pair might be another option and picking up a better block if you dont want to mod it.

If you want to mod it would be to hard as the cover is very thick

BillA · 02-02-2006, 07:38 AM

increasing the passage size is about futile as velocity will drop,
need more copper in contact with the coolant;
accept it for the bling

ElMoIsEviL · 02-02-2006, 08:15 AM

I might have them setup on there own 2 pumps.

I have heard from many sites that the performance difference between 1/2" and 3/8" and smaller is minimal so long as there is restriction above the VPU/GPU and enough power to keep a decent flowrate.

Would this be true?

gmat · 02-02-2006, 08:30 AM

Actually with this block the tubing size wont matter much. It looks like it's very restrictive, and will kill your flow anyway. Most of the copper surface is totally useless...

ElMoIsEviL · 02-02-2006, 08:45 AM

REviews show it keeping a GeForce 6800 Ultra at 57C under load when overclocked to 475/1260

This is on a loop using a Hydor L30 and the loop is also cooling the CPU. See with the stock cooler the overclocked settings made the GPU hit 85C... that's insane.. this block brought it down to 57C... pretty decent if you ask me. But before we get into talking about how it will perform.. I'll wait till I get it. I've ordered two more MCP655's so 3 of them total just in case. The case I'm using is Gigantic so space is not a problem (heck the Black Ice Xtreme II fits on the back of the case).

Cyprio · 02-04-2006, 07:53 AM

I know watercooling RAM is not really needed but is that the same for gfx ram? Why do all GFX air coolers cool the ram if its unecessary?

Just wondering what people think as i have a GPU block and was looking into getting a full block like one of these that cools the GFX RAM as well.

ElMoIsEviL · 02-04-2006, 10:35 AM

Quote:

I know watercooling RAM is not really needed but is that the same for gfx ram? Why do all GFX air coolers cool the ram if its unecessary?

Just wondering what people think as i have a GPU block and was looking into getting a full block like one of these that cools the GFX RAM as well.
02-02-2006 08:45 AM

It does make a difference as does cooling high performance system ram with a heatspreader. When you've overclocking and running a product out of spec on either the clockrate or the voltages you generate more heat. Heat reduces the efficiency of electricity to move in a circuit. So by cooling it, you're able to somtimes stabilize the the RAM so that it can operate at a higher frequency.

This is especially true with High performance video card RAM which is hot to begin with (Especially DDR-2 and GDR3).

ricecrispi · 02-04-2006, 07:51 PM

Cut a new one from inlet straight to center channel and do the same for the outlets.

wasserkool · 02-05-2006, 04:12 PM

I have this block on my X1900XT and my idle temp is 37C and load is 45C. Its pretty good IMO.

ElMoIsEviL · 02-05-2006, 04:21 PM

Quote:

I have this block on my X1900XT and my idle temp is 37C and load is 45C. Its pretty good IMO.

Nice... those are Extremely good temps for an X1900XT... should be around what I will get with my X1900XTX.. cept I'll have two of them (Crossfire).

Quick question... what does your watercooling loop consist of?

wasserkool · 02-05-2006, 04:26 PM

This thread has my watercooling components:
http://forums.procooling.com/vbb/showthread.php?t=12762

I think my huge rad is helping alot

ElMoIsEviL · 02-05-2006, 04:32 PM

Quote:

I think my huge rad is helping alot

What Radiator are you using?

N/M... it's huge.... woah..

wasserkool · 02-05-2006, 04:37 PM

http://img39.imageshack.us/my.php?image=dsc044556wv.jpg

Mora 2 Pro ( 360mm X 360mm)

ElMoIsEviL · 02-05-2006, 04:39 PM

That's pretty big...lol

ricecrispi · 02-05-2006, 09:29 PM

just sell the blocks. Shallow the $20-40 you going to lose and get some mcw-60

02-01-2006, 11:14 AM	#1
ElMoIsEviL Cooling Neophyte Join Date: Jan 2006 Location: Ottawa, Ontario Posts: 71	Alphacool 1/2" NVXP-3 ATI Waterblock? Is this block any good? I'm about to order two of them and was wondering if they would be a good performing block? Any thoughts?

02-01-2006, 11:33 AM	#2
Eddy_EK Cooling Neophyte Join Date: Mar 2005 Location: Slovenia Posts: 94	Re: Alphacool 1/2" NVXP-3 ATI Waterblock? Please don't use that flowkiller... __________________ EK Water Blocks

02-01-2006, 12:38 PM	#3
ElMoIsEviL Cooling Neophyte Join Date: Jan 2006 Location: Ottawa, Ontario Posts: 71	Re: Alphacool 1/2" NVXP-3 ATI Waterblock? It's it's combined with two MCP655's on the same loop as a Black Ice Xtreme II and Black Ice Xtreme as well as a Swiftech MCW5002-T and Criticool Waterplant... do you think the flow rate would still be significantly low?

02-01-2006, 03:02 PM	#4
ElMoIsEviL Cooling Neophyte Join Date: Jan 2006 Location: Ottawa, Ontario Posts: 71	Re: Alphacool 1/2" NVXP-3 ATI Waterblock? Well I've bought two. They will cool down my X1900XTX Crossfire rig once I get the X1900XT Crossfire Master card. __________________ Asus P5N32-E SLI \| Intel Core 2 Extreme QX6700 @ 4.23GHz (Swiftech MCW5002-775T 226W Pelt) \| 4x1GB OCZ Special Ops DC PC2-6400 DDR2 XTC \| 2xBFG TECH GeForce 8800 GTX OC 768MB Water Cooled \| Sound Blaster X-Fi FaT@l1Ty FPS Sound Card \| 2x74GB WD Raptor 10,000 RPM RAID0 \| 2x320GB Seagate 7200.10 7,200 RPM RAID0 \| SuperCooled: Enterprise Custom Cooling

02-01-2006, 05:58 PM	#5
Etacovda Cooling Savant Join Date: Feb 2004 Location: Dunedin NZ Posts: 735	Re: Alphacool 1/2" NVXP-3 ATI Waterblock? if two of those dont at least halve your flowrate, id be surpised. edit - with two mcp655's it probably wont be halved but ouch.. __________________ Hypocritical Signature I tried to delete: Procooling: where scientific principles are ignored because big corporations are immune to mistakes and oversights.

02-01-2006, 06:48 PM	#6
Long Haired Git Cooling Savant Join Date: Jan 2003 Location: Sydney, Oz Posts: 336	Re: Alphacool 1/2" NVXP-3 ATI Waterblock? Do us a favour, hook it up with a short run of tubing to a single MCP655 and do the timed-bucket-fill flow rate test and let us know the results. Then retest with two of these blocks and one MCP655. Then retest with both blocks and both MCP655s. Three points will give me an approximation of the PQ chart. __________________ Long Haired Git "Securing an environment of Windows platforms from abuse - external or internal - is akin to trying to install sprinklers in a fireworks factory where smoking on the job is permitted." (Prof. Gene Spafford) My Rig, in all its glory, can be seen best here AMD XP1600 @ 1530 Mhz \| Soyo Dragon + \| 256 Mb PC2700 DDRAM \| 2 x 40 Gb 7200rpm in Raid-0 \| Maze 2, eheim 1250, dual heater cores! \| Full specifications (PCDB)

02-01-2006, 08:39 PM	#7
ElMoIsEviL Cooling Neophyte Join Date: Jan 2006 Location: Ottawa, Ontario Posts: 71	Re: Alphacool 1/2" NVXP-3 ATI Waterblock? I'll do that as soon as they arrive. They're coming from Germany and I'm in Canada.. a tad bit of a journey. __________________ Asus P5N32-E SLI \| Intel Core 2 Extreme QX6700 @ 4.23GHz (Swiftech MCW5002-775T 226W Pelt) \| 4x1GB OCZ Special Ops DC PC2-6400 DDR2 XTC \| 2xBFG TECH GeForce 8800 GTX OC 768MB Water Cooled \| Sound Blaster X-Fi FaT@l1Ty FPS Sound Card \| 2x74GB WD Raptor 10,000 RPM RAID0 \| 2x320GB Seagate 7200.10 7,200 RPM RAID0 \| SuperCooled: Enterprise Custom Cooling

02-01-2006, 09:46 PM	#8
BillA CoolingWorks Tech Guy Formerly "Unregistered" Join Date: Dec 2000 Location: Posts: 2,371.493,106 Posts: 4,440	Re: Alphacool 1/2" NVXP-3 ATI Waterblock? put in a separate loop, but pointless to WC ram NO demonstration of efficacy that I have ever seen (e-penis stuff aside)

02-01-2006, 10:09 PM	#9
ricecrispi Cooling Savant Join Date: Jul 2005 Location: california Posts: 429	Re: Alphacool 1/2" NVXP-3 ATI Waterblock? mod it! Time to cut into some plastic.

02-02-2006, 03:48 AM	#11
ricecrispi Cooling Savant Join Date: Jul 2005 Location: california Posts: 429	Re: Alphacool 1/2" NVXP-3 ATI Waterblock? Selling the pair might be another option and picking up a better block if you dont want to mod it. If you want to mod it would be to hard as the cover is very thick

02-02-2006, 07:38 AM	#12
BillA CoolingWorks Tech Guy Formerly "Unregistered" Join Date: Dec 2000 Location: Posts: 2,371.493,106 Posts: 4,440	Re: Alphacool 1/2" NVXP-3 ATI Waterblock? increasing the passage size is about futile as velocity will drop, need more copper in contact with the coolant; accept it for the bling

02-02-2006, 08:15 AM	#13
ElMoIsEviL Cooling Neophyte Join Date: Jan 2006 Location: Ottawa, Ontario Posts: 71	Re: Alphacool 1/2" NVXP-3 ATI Waterblock? I might have them setup on there own 2 pumps. I have heard from many sites that the performance difference between 1/2" and 3/8" and smaller is minimal so long as there is restriction above the VPU/GPU and enough power to keep a decent flowrate. Would this be true? __________________ Asus P5N32-E SLI \| Intel Core 2 Extreme QX6700 @ 4.23GHz (Swiftech MCW5002-775T 226W Pelt) \| 4x1GB OCZ Special Ops DC PC2-6400 DDR2 XTC \| 2xBFG TECH GeForce 8800 GTX OC 768MB Water Cooled \| Sound Blaster X-Fi FaT@l1Ty FPS Sound Card \| 2x74GB WD Raptor 10,000 RPM RAID0 \| 2x320GB Seagate 7200.10 7,200 RPM RAID0 \| SuperCooled: Enterprise Custom Cooling

02-02-2006, 08:30 AM	#14
gmat Thermophile Join Date: Mar 2001 Location: France Posts: 1,221	Re: Alphacool 1/2" NVXP-3 ATI Waterblock? Actually with this block the tubing size wont matter much. It looks like it's very restrictive, and will kill your flow anyway. Most of the copper surface is totally useless...

02-02-2006, 08:45 AM	#15
ElMoIsEviL Cooling Neophyte Join Date: Jan 2006 Location: Ottawa, Ontario Posts: 71	Re: Alphacool 1/2" NVXP-3 ATI Waterblock? REviews show it keeping a GeForce 6800 Ultra at 57C under load when overclocked to 475/1260 This is on a loop using a Hydor L30 and the loop is also cooling the CPU. See with the stock cooler the overclocked settings made the GPU hit 85C... that's insane.. this block brought it down to 57C... pretty decent if you ask me. But before we get into talking about how it will perform.. I'll wait till I get it. I've ordered two more MCP655's so 3 of them total just in case. The case I'm using is Gigantic so space is not a problem (heck the Black Ice Xtreme II fits on the back of the case). __________________ Asus P5N32-E SLI \| Intel Core 2 Extreme QX6700 @ 4.23GHz (Swiftech MCW5002-775T 226W Pelt) \| 4x1GB OCZ Special Ops DC PC2-6400 DDR2 XTC \| 2xBFG TECH GeForce 8800 GTX OC 768MB Water Cooled \| Sound Blaster X-Fi FaT@l1Ty FPS Sound Card \| 2x74GB WD Raptor 10,000 RPM RAID0 \| 2x320GB Seagate 7200.10 7,200 RPM RAID0 \| SuperCooled: Enterprise Custom Cooling

02-04-2006, 07:53 AM	#16
Cyprio Cooling Neophyte Join Date: Jun 2005 Location: London, UK Posts: 47	Re: Alphacool 1/2" NVXP-3 ATI Waterblock? I know watercooling RAM is not really needed but is that the same for gfx ram? Why do all GFX air coolers cool the ram if its unecessary? Just wondering what people think as i have a GPU block and was looking into getting a full block like one of these that cools the GFX RAM as well. __________________ ::BR:: - A Gaming Community www.brclan.co.uk

02-04-2006, 07:51 PM	#18
ricecrispi Cooling Savant Join Date: Jul 2005 Location: california Posts: 429	Re: Alphacool 1/2" NVXP-3 ATI Waterblock? Cut a new one from inlet straight to center channel and do the same for the outlets.

02-05-2006, 04:12 PM	#19
wasserkool Cooling Neophyte Join Date: Jul 2005 Location: Canada Posts: 21	Re: Alphacool 1/2" NVXP-3 ATI Waterblock? I have this block on my X1900XT and my idle temp is 37C and load is 45C. Its pretty good IMO.

02-05-2006, 04:26 PM	#21
wasserkool Cooling Neophyte Join Date: Jul 2005 Location: Canada Posts: 21	Re: Alphacool 1/2" NVXP-3 ATI Waterblock? This thread has my watercooling components: http://forums.procooling.com/vbb/showthread.php?t=12762 I think my huge rad is helping alot

02-05-2006, 04:37 PM	#23
wasserkool Cooling Neophyte Join Date: Jul 2005 Location: Canada Posts: 21	Re: Alphacool 1/2" NVXP-3 ATI Waterblock? http://img39.imageshack.us/my.php?image=dsc044556wv.jpg Mora 2 Pro ( 360mm X 360mm)

02-05-2006, 04:39 PM	#24
ElMoIsEviL Cooling Neophyte Join Date: Jan 2006 Location: Ottawa, Ontario Posts: 71	Re: Alphacool 1/2" NVXP-3 ATI Waterblock? That's pretty big...lol __________________ Asus P5N32-E SLI \| Intel Core 2 Extreme QX6700 @ 4.23GHz (Swiftech MCW5002-775T 226W Pelt) \| 4x1GB OCZ Special Ops DC PC2-6400 DDR2 XTC \| 2xBFG TECH GeForce 8800 GTX OC 768MB Water Cooled \| Sound Blaster X-Fi FaT@l1Ty FPS Sound Card \| 2x74GB WD Raptor 10,000 RPM RAID0 \| 2x320GB Seagate 7200.10 7,200 RPM RAID0 \| SuperCooled: Enterprise Custom Cooling

02-05-2006, 09:29 PM	#25
ricecrispi Cooling Savant Join Date: Jul 2005 Location: california Posts: 429	Re: Alphacool 1/2" NVXP-3 ATI Waterblock? just sell the blocks. Shallow the $20-40 you going to lose and get some mcw-60

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