• We’re currently investigating an issue related to the forum theme and styling that is impacting page layout and visual formatting. The problem has been identified, and we are actively working on a resolution. There is no impact to user data or functionality, this is strictly a front-end display issue. We’ll post an update once the fix has been deployed. Thanks for your patience while we get this sorted.

Water Cooling MSI 7800GTX Problems and anyone else have this problem!

P

papaHesch

Member
Anyone,

Been looking for an answer to this problem for awhile and can not figure it out. I have a MSI 7800GTX and it is water cooled. I would like to take the fan off with this solution but the card gives me considerable trouble when then fan is not connected. Thus taking out one of the main benefits of silent operation on water cooling. Has anyone had this problem when trying to water cool their 7800GT or GTX cards that the fan has to be plugged in? How did you solve the problem? I am thinking that I am going to have to rig up a resistor to the fan plug that makes the card believe that the fan is running. This would be easy if I knew how many ohms the 7800GTX fans run at. I believe this solution would work if I got a new connector and just connected the two wires to a resistor that matches the fans ohms. Thus the bios would think the fan is running. Anyone have any other ideas, similar problems, or comments on my idea. Any help would be greatly appreciated before I fry my card.

Thanks,
PapaH
 
Originally posted by: biostud
my work fine with the fan unplugged.
Click to expand...

So did mine. I'd either do like you're thinking and rewire the fan connector or maybe flash the bios to a brand that doesn't require a fan to run (I know BFG doesn't).
 
did you try updating bios on it or see what people dont have a problem with it unplugged and what bios version they are using.
 
It is defiantly a MSI board issue. I have looked long a far with no answer for this problem and I can not figure out how much resistance the fan is on this boards. Basically I need an electrical Engineer to give me the goods. MVTech has tons of BIOS files but I have never flashed a different companies bios to a video card and was wondering if this is a relatively safe operation. I assume you can reflash it back if it does not work but still makes me nervous. Anyone have any experience in ee or flashing vga cards with different bios files?

Thanks,
PapaH
 
Originally posted by: papaHesch
Anyone,

Been looking for an answer to this problem for awhile and can not figure it out. I have a MSI 7800GTX and it is water cooled. I would like to take the fan off with this solution but the card gives me considerable trouble when then fan is not connected. Thus taking out one of the main benefits of silent operation on water cooling. Has anyone had this problem when trying to water cool their 7800GT or GTX cards that the fan has to be plugged in? How did you solve the problem? I am thinking that I am going to have to rig up a resistor to the fan plug that makes the card believe that the fan is running. This would be easy if I knew how many ohms the 7800GTX fans run at. I believe this solution would work if I got a new connector and just connected the two wires to a resistor that matches the fans ohms. Thus the bios would think the fan is running. Anyone have any other ideas, similar problems, or comments on my idea. Any help would be greatly appreciated before I fry my card.

Thanks,
PapaH
Click to expand...

What do you mean by considerable trouble?
I had some throttling issues with my MSI that appeared randomly, but I figured it wasn't a fan problem. Something was making the card to throttle for sometime.


BTW for those that have an MSI card how far did you reach o/cing your card with W/C?
 
jim,

It will not allow me to OC and will throttle down the GPU. Also, gives me occasional errors. Basically, making it a 5800 without the fan and no OC. I can easily reach 500 MHZ for the GPU and 650 MHz or 1300 MHZ for the memory. I could push it farther but after a couple hours of gamming I start to see some slight corruption over that number. I like to be safe. I am using a relatively weak VGA water cooler (cooler master) that does not water cool the memory only copper heat sink. Jim, any idea what the resistance of the fan on the MSI card is?
Thanks,
Papah
 
To anyone that wants to water cool your MSI 7800 cards here is the solution to the fan problem. Basically use nibitor (BIOS reading and editing software from MVKtech.net) and edit the 3D to what ever OC you want (500 - 1300). Then go to the temperature tab and turn the fan speed to 0% for 3D, 2D, and Throttle. You will then need to use NVflash to reflash the card or cards. The card will then not throttle down randomly and you will have a watercooled OCed 7800 for a reasonable price. I paid $485@2 for all the parts from newegg.com - waterblock, and card. Works great.

Good Luck,
papah
 
You must log in or register to reply here.

TRENDING THREADS

Back
Top