CPU Fan problem after installing Gigabyte GTX 650Ti on Gigabyte GA-H61MA-D3V

ovaspark

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Mar 30, 2013
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10,510
Apologies in advance for the long post but Im at my wits end.

I have a Gigabyte GA-H61MA-D3V ver 2.0 and have just installed a Gigabyte Geforce GTX 650 Ti and after installing fairly seamlessly I noticed that my CPU fan stopped working - it just clicks round a few degrees every 10 secs or so. My previous GPU is the onboard Intel HD 4000 which auto recognises when another GPU is inserted.

I tried a game briefly with the new card (before noticing the CPU fan) which works really well but then starts to slow up and have problems so quickly stopped that and shut down.

I removed the card, reconnected my monitor to the mobo onboard GPU and everything works fine again.

Ive tried overriding CPU fan speed control in BIOS which overrides it on the onboard GPU but no change on the GTX. Ive tried increasing the slope PWM factor but no change

If I put CPU fan failure alarm on in BIOS this is set off if I put the new GTX in and power up.

Ive disabled auto detect external GPU in BIOS to just use external GPU - same problem.

If I leave the GTX card in, unplug power to it and connect monitor back to motherboards internal GPU all works as normal.

Ive checked for BIOS update and had some hope as there was a new BIOS F5 with upgraded support for PCIEx16 Graphics cards - flashed over okay but alas no change with the CPU fan issue.

The card is seated correctly in the PCIx16 slot and has its own PCIe power supply (only one PSU socket on this card). My PSU is a CoreXstream 500W PSU so should be okay I would have thought. CPU fan only needs about 0.28A and the problem occurs even before the graphics card is under any load. I tried stripping down any power drain by removing the hard drive, dvd rewriter and case fan from the PSU but no change.

Ive tried another card Radeon HD3800 in the PCIe 16 slot and that works fine. Ive tried the GTX in another PC and starts up okay and doesnt affect the CPU fan (that PC has a 300W PSU)

Other bits not sure if relevant -
Windows 7 64 bit
Intel i7 3770 CPU
8BG RAM
Motherboard - Gigabyte GA-H61MA-D3V
Graphics Card GV-N65TOC-2GI Gigabyte GeForce GTX 650 Ti 2GB

Any ideas would really be appreciated I would have thought with both products being Gigabyte this should have been a no brainer ??

Do you think it would help if I cleared the CMOS on the motherboard, restarted PC and reset BIOS to defaults, disabled onboard card and then inserted the GTX card? In doing this would I need to reflash my BIOS to latest version again or is that still held somewhere on the m/board?
 
G

Guest

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..but the fan works fine when I insert another graphics card or use te internal GPU so Im not sure how that can be the case?
 

ovaspark

Honorable
Mar 30, 2013
3
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10,510


Hmm ..psu could possibly be the problem but I've tried to prove this and can't. I've tried removing other items drawing power, replacing the card with a more demanding card and putting the card in my old p4 machine with a basic 300w psu and all suggested the problem lies elsewhere. Is there some way I can prove its the psu? Thanks for any help by the way!
 

magicfurhat

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Jan 3, 2014
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10,510
Hello, did you ever get this solved? I am having a very similar problem with the Gigabyte Geforce GTX 650 Ti. My CPU fan behaves just like yours did when the graphics card is installed, and works fine when it is removed.



 

ovaspark

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Mar 30, 2013
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10,510
Hi

Yes it turns out it was the CPU fan that was conflicting with the graphics card - Gigabyte did some tests on my fan and a similar fan and managed to replicate the problem with my fan - I ended up just returning the card to Amazon for a refund rather than trying to source a compatible CPU fan which seemed a bit hit and miss.

Hope this helps!



 

magicfurhat

Honorable
Jan 3, 2014
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10,510
Yes that does help. Now that I know what the culprit is, I will probably do the same thing you did. Thanks a bunch!