How to flip PCB's of 9800GX2

[tiborrr]

Not quite sure if it has been done before so anyway. I ran out of M3 nuts (which i have to buy tommorrow in local hardware store) so for the photos the two PCBs are attached together by only three M3 screws. Distance between elements of both PCBs is good enough so they don't short circuit each other.

Only problem is too long bridge #1 and too short bridge #2 which gave me some issues.







Your comments are always welcome It's gonna be fun in the next weeks OC'ing this beast (2x SS evap anyone? )

[[XC] gomeler]

I've thought about this in the past, great to see someone implement it. Should make insulating and mounting incredibly easy albeit awkward

[tiborrr]

Insulation should be a piece of cake, gom. Every PCB should act as a backplate so only one layer of armaflex in between both PCB layers on the whole lenght of the card.

Tnx

[Eldonko]

Very good, should be easier this way.

[g0dM@n]

Let me guess... you also hopped on that awesome BFG 9800GX2 deal at compusa/tigerdirect. Mine should be coming in 2 days. I'm going to keep a close eye on your progress here, my friend... b/c I need to do this. I just can't go without water cooling with the amount of cooling power I have available and trying to keep the costs down. I'm HOPING that I can implement two Swiftech MCW60s on here, but not sure...

[Ghost742]

would the sockets out to the screen match up with the i/o plate? or would it require more space?
i assume you aren't going to bench it in a case, instead on a torture rack?

[tiborrr]

@g0dM4n:
No, i'm from Europe, i bought this card in Germany, but it was the cheapest deal in Europe ~ 230€. I already have one Swiftech MCW60, gotta get another one for daily use. For now i'll cool the other side with Zalman VF900. Two swiftech's would be possible, just without the original backplates (using only screws).

@Ghost742:
If i twist the original PCI bracket plate, when it would fit, but you really have to twist it into mirrored position. Only HDMI port will be blocked. And yes, i'm gonna give it a go in - what you call it - 'torture rack'

[tiborrr]

First Swiftech MCW-60 already mounted. Had to ditch the original backplate and attach the waterblock to the GPU with original M2.5 screws provided by the original cooler. Have to buy another one ASAP (via PetrasTechShop.com , they're really too expensive here in Europe).

[Nosfer@tu]

Hmmmm.

Maybe I can do this to use my pots on it

[tiborrr]

@Nosferatu:
Sure you can! Just take care of nasty CB

Here's the final version, the front side is equipped with AC Accelero S1 by the time i get another Swiftech MCW-60 v2 wateblock. Both PWM's are cooled with sawed-off-in-half X1900 series PWM cooler:

[vengance_01]

Very sweet indeed. Great job.

[ShArKo]

OMG................If I had a 9800GX2......I will never do that........to scary for me ejejje

[Solarfall]

wow thats an awesome idea... 10 points for creativity
i think that thing might work surprisingly well since that card runs RALLY hot with the stock cooler

[Nosfer@tu]

That must have taken HOURS for you m8

SUPERB JOB MAN

[cowie]

first off,that is really wild how you did that
theres alot of heat going to the backs of the cards also no?
and no air flow...i mean just taking a geuss its gunna run hotter or the same.

two none the less

[tiborrr]

Thank you all, really appreciate it

No, the backside of PCB shouldn't heat up noticably at all. Here's the card with finished watercooling (i found my first ever waterblock (old about 8 years or so?)) until i get another MCW-60 v2.0. It's held down with G80 Swiftech adapter with slighty bent bolts.

Also PWM cooling is not held down with zip ties, it's much more practical and provides much greater retention force.

[K404]

LOVE IT!! Nicely done and kudos for the idea. Mine was to have the PCBs at right angles, one sat flat, parallel to the mobo.


Temps should be interesting

[tiborrr]

Thanks Kenny. I just installed Vgpu voltmods and now we're ready for the first power up

[tiborrr]

First run:


After Vgpu mod @ 1.325V it's stable (2x whole '01 loop, straight run, no optimizations, just VGA OC & LOD4.9) at 864/2268/1203, for benching a tad more.


Test system:
C2D E8600@4600MHz, 1.42V -> Scythe Infinity
ASUS P5Q3-Dlx
2x512MB Crucial 8500F DDR3-1066@something-something
700W BeQuiet Straightpower PSU
watercooling: Iwaki MD-20R + Cu heatercore + 2x120mm Delta HHE + Swiftech MCW-60R v2.0 + h20blok (oldskool )

Soon some real tests with Commando & CPU under cascade, this P5Q3-Dlx just isn't the best platform for 2001SE, hell even AM3 sucks on it...

[loonym]

Nicely done! Looking forward to some nice scores

[jugeen]

Good job neighbor!

[tiborrr]

Thank you fellas!
Here's the first try-out video for you:



I just don't know why the YT video stutters that much, my other vids don't...

[Oliver]

Sweet work man, awesome work around

[TheKarmakazi]

very nice modding! creative and effective!

[billdavis]

that is cool dude