X1800\X1900 PWM sink mod

RangerXLT8 · April 29th, 2006

Over at OCForums a member machined a custom heatsink to replace the stock ATI one layed across the cards PWM controllers, and also covering the black boxess next to it(inductors?). So I did some experimenting on my own and found that the black boxes(I believe they are inductors, correct me if i'm wrong) laying parallel to the red heatsink became awfull hot(95c) when overvolting and benchmarking. We all know heat is no good when it comes to computer hardware. Viper John aka 'radeon mod god' sinks this area as well on his cutoms cooled cards. So here is what I did.

the sinks are MicroCool Chipsinks.
The first 2 pictures are a pair of X1800XT Crossfire Cards

And here is my current X1900XTX

To finish things off, I mount a medium RPM fan wire tied to the Cardkeeper in a manner that it pushes air right over the pwm area. PWM temps dropped 30C!!!

**simple_inhibition** · April 29th, 2006

that has got to be THE coolest thing ever! does he make nvidia versions?

Tyreal · April 29th, 2006

That card sure looks slick now. Are there any noticeable differences? Maybe you got a few more mhz?

**Capper** · April 29th, 2006

A couple upcoming article are going to look at stuff like this...First we have a 7900GTX article that will actually compare the 7900GTX to the X1900XTX....bioth great cards, both pretty expensive, and honestly....both have pretty poor cooling solutions....which brings me to the next article, Arctic Cooling's new Accelero X2 Cooler, which looks very interesting.

**simple_inhibition** · April 29th, 2006

yeah, ive been thinking about getting one of those for my 7800gt. i cant wait to read that review

**drew and not u** · April 29th, 2006

good stuff ranger. Makes me want to do some custom work to my card!

RangerXLT8 · April 29th, 2006

@ Simple: X1900 and 7800 both have 2.10" bolt patterns, A BH-610 modded w\ the 2.1" pattern should bolt right on. I can get you in contact with the gentleman who made mine. What he does is, buys all the parts and then adds 10.00 for labor. No guarantee he will do it again. Mine came to 35.00 shipped.

@ tyreal: I no longer have to deal with the hair-dryer sound of the stock cooler. The 610 has the capacity to dissapate more heat then the stock cooler. Depending what 60mm fan you use, temps vary. With the stock top-motor fan on mine, temps are about 5c cooler then the ATI cooler @ 100% fan speed.

I think anyone overclocking or overvolting could benefit from the PWM mod. The heat from the pwm area is enough to make the entire PCB hot to the tough.

Tyreal · April 29th, 2006

I can't deal with videocard stock coolers either. They are so piss poor. They don't cool very well, mounting methods aren't very good, they are LOUD... theres more but i'll stop ranting. Manufacturers should put more time into making their cooling units better instead of making bigger bundles or nicer boxes...

RangerXLT8 · April 29th, 2006

Quote:

Originally Posted by Tyreal

I can't deal with videocard stock coolers either. They are so piss poor. They don't cool very well, mounting methods aren't very good, they are LOUD... theres more but i'll stop ranting. Manufacturers should put more time into making their cooling units better instead of making bigger bundles or nicer boxes...

Believe it or not the stock ATI X18/1900 cooler @ 100% cools very well, it's just sooo damn loud...... We're talking hair dryer loud.

Tyreal · April 29th, 2006

Holy smokes. Thats the main problem. Pretty much all stock videocard coolers are like that.

April 29th, 2006	#1
RangerXLT8 Worker Ant Join Date: Apr 2006 Location: New Jersey Posts: 942	X1800\X1900 PWM sink mod Over at OCForums a member machined a custom heatsink to replace the stock ATI one layed across the cards PWM controllers, and also covering the black boxess next to it(inductors?). So I did some experimenting on my own and found that the black boxes(I believe they are inductors, correct me if i'm wrong) laying parallel to the red heatsink became awfull hot(95c) when overvolting and benchmarking. We all know heat is no good when it comes to computer hardware. Viper John aka 'radeon mod god' sinks this area as well on his cutoms cooled cards. So here is what I did. the sinks are MicroCool Chipsinks. The first 2 pictures are a pair of X1800XT Crossfire Cards And here is my current X1900XTX To finish things off, I mount a medium RPM fan wire tied to the Cardkeeper in a manner that it pushes air right over the pwm area. PWM temps dropped 30C!!! Quad Core Xeon 3210@3.22ghz GA-EP35C-DS3R 460FSB x 7 -- 60mm Delta fan on NB 2x1gb OCZ3-1333@1380MHZ Sapphire 4870 512mb GDDR5 2x Raptor 150 ADFD RAID 0--WD320YS RE 16mb Storage Samsung Super WriteMaster 20x DVDRW X-Fi eXtremeGamer w\Logitech Z-2300 Silverstone OP650 54A 12v Rail @50C DamgerDen Torture Rack--MC-TDX--Black Ice GTX240--MCP355 Rev 2--Swiftech MicroRes-- Tygon 3603 3/8"ID Logitech G5 - Logitech LX-710 wireless KB Vista Ultimate 64

April 29th, 2006	#2
simple_inhibition socket 939 junkie Join Date: Mar 2006 Location: In front of my pc in Ft Bragg XD Posts: 1,434 Blog Entries: 1	that has got to be THE coolest thing ever! does he make nvidia versions? Q6600 @ 3.6ghz (400x9 @ 1.408v) Gigabyte X38-DQ6 2x2GB G-Skill DDR2 1000 @ DDR2 1066 5-5-5-15 2T 2.1v Visiontek HD4870 Seagate 7200.11 500GB 32MB Cache HDD Razer Barracuda AC1 Silverstone DA750 Samsung Dual Layer DVD Burner Lian Li G70WB Thermochill PA120.3\|Swiftech Storm Rev.2\|Swiftech MCP 655

April 29th, 2006	#3
Tyreal Join Date: Jan 2006 Location: British Columbia, Canada Posts: 2,557	That card sure looks slick now. Are there any noticeable differences? Maybe you got a few more mhz? I Like Watercooling. D-Tek Fuzion, MCP655, MCR220

April 29th, 2006	#4
Capper I'm Evil Join Date: Dec 2005 Location: Las Vegas, NV Posts: 5,603 Blog Entries: 6	A couple upcoming article are going to look at stuff like this...First we have a 7900GTX article that will actually compare the 7900GTX to the X1900XTX....bioth great cards, both pretty expensive, and honestly....both have pretty poor cooling solutions....which brings me to the next article, Arctic Cooling's new Accelero X2 Cooler, which looks very interesting. INTEL QX9650 ASUS P5E3 Premium 4GB DDR3-1600 Sapphire HD 3870X2 Danger Den Tower-26 (Custom W/C) 5 x Seagate 250GB HDD in RAID5 BFG ES 800W PSU

April 29th, 2006	#5
simple_inhibition socket 939 junkie Join Date: Mar 2006 Location: In front of my pc in Ft Bragg XD Posts: 1,434 Blog Entries: 1	yeah, ive been thinking about getting one of those for my 7800gt. i cant wait to read that review Q6600 @ 3.6ghz (400x9 @ 1.408v) Gigabyte X38-DQ6 2x2GB G-Skill DDR2 1000 @ DDR2 1066 5-5-5-15 2T 2.1v Visiontek HD4870 Seagate 7200.11 500GB 32MB Cache HDD Razer Barracuda AC1 Silverstone DA750 Samsung Dual Layer DVD Burner Lian Li G70WB Thermochill PA120.3\|Swiftech Storm Rev.2\|Swiftech MCP 655

April 29th, 2006	#6
drew and not u The Pizza Killer Join Date: Feb 2006 Location: where do you friggin live?? Posts: 1,713	good stuff ranger. Makes me want to do some custom work to my card! P5K-E / E8400 @ 4.0 / Scythe Ninja Copper / 2GB Hyper-X DDR2-800 / 7800GT / Antec 1200 / Corsair HX-520 P5W DH Deluxe / E7200 @ 3.8 / 2GB Ballistix DDR2-800 / 7600GT (passive) / P180B / Seasonic SS-550HT / Zalman Reserator V2 Optiplex 755 / E2180 / 4GB DDR2 / 160GB HD / ATI HD 2400 Dual-ISP Network aim: drewandnotu \| Skype: drew-and-not-u

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