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Weird GTX460 OC problem.

Dervious

Dervious

Dervious

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A tale of woe.........

Bought a Gigabyte GTX460OC 1GB from overclockers about a month ago.

Removed my old HD4850 from the motherboard (Gigabyte Ma790x ud3p) and installed the Gtx460. Installed Nvidia drivers and went about testing the new card. Every time I put the gfx card under load, the screen would freeze within seconds/minutes. Did a clean install of windows on a spare drive, tested again, same problem. Overclockers told me to return it, but I decided to take it to a friend`s house for a final test. It ran fine. Tried it at another friend`s house, again it ran perfectly.

What followed was a lot of component swapping, CPU, RAM etc. Still the problem persisted. I had pretty well pinned it down to the motherboard, so I ordered a cheap Gigabyte motherboard board as a final test, and to use while the UD3p was being fixed. Sure enough, the replacement MB worked perfectly with my new gfx card. So I waited a couple of weeks for Gigabyte to test the returned MB. It arrived back here a couple of days ago "no fault found", they were even kind enough to email me several photos to show my board being tested. I reinstalled the motherboard, and the problem returned. I did another clean install of Win 7, and borrowed a PSU from a friend (just to make sure). I still got lockups after a minute or two of benchmarking. I have never seen GPU temperatures much above 60 degrees (and the system will sometimes freeze before the GPU reaches 40 degrees).

So it seems that the GTX460 that I bought doesn`t work with the motherboard I bought about 12 months ago. The motherboard will work with any other graphics card (even another GTX460), and my GTX460 will work in all the other motherboards I`ve tried it with.

Both my motherboard and gfx card are on their way to be tested together. If Gigabyte tell me there is no problem, I`ll eat my monitor (raw). (Maybe ;))
 
I heard a quite a lot of Gigabyte GTX460OC 1GB are becoming faulty after a week or so.

Prob isnt your motherboard.
 
OK, here`s what was tried.......

GTX460 arrived with an earlier Bios, I flashed it to "F3" (latest bios).

I tried 3 different motherboard bioses.

I tested in Win XP 32bit, Win 7 64 bit and Win 7 32 bit.

I was mainly testing with Nvidia 260.99 drivers, but as advised by Gigabyte I tried their latest driver (260.53 or similar).

I run a Coolermaster SilentPro M700 PSU, but I also tried a Corsair CX500.

I tested with my Intel 80gb SSD, but also tested with clean installs on an old 80gb IDE HDD.

I use OCZ Platinum DDR2 2Gb x 2, but I also tested with some Kingston RAM (1gb x 2).

I tested with the following CPUs LE1640, X2 5000 and a 550BE, all at stock settings.

I tested the GTX460 in the secondary PCIe slot (x8) on the UD3P, Windows struggled to boot, system was badly stuttering.

After doing all of those tests, I used a cheap Gigabyte motherboard M68M-S2P along with all the components I was previously using, and the graphics are fine. Conclusion ? Motherboard fault. Not according to Gigabyte`s tests. :confused:
 
Phatzy said:
I heard a quite a lot of Gigabyte GTX460OC 1GB are becoming faulty after a week or so.

Prob isnt your motherboard.
Click to expand...

Maybe, but the GTX460 worked perfectly in another MB for a couple of weeks and still refuses to work in my other MB.

Like I said, weird.
 
i had this problem years ago with a 9700 and an intel granite bay chipset board where it just would'nt work together ....my m8 had the same mb and it would'nt work in his but it would work on any other chipset .....my friends ti 4800 worked a treat on mine
 
This isn`t a chipset compatability issue. Gigabyte have tested a GTX460 in my motherboard, and it works OK. My GTX460 won`t work in my motherboard. So, it appears that my GTX460 is faulty. The thing is, if I send it back to overclockers, it will almost certainly test OK in another motherboard.

And Gigabyte reckon my motherboard is OK.

I`ve tested my GTX460 in three other motherbaords, and it`s OK.

Put the two together, and it`s not OK !
 
Could it be PSU-related?

That would explain why your mobo tests fine, and why the card works fine in other systems.

Presumably the PSU is a common theme to your tests that you may have overlooked - any way to tests another?
 
(ST)Pohaku said:
Could it be PSU-related?

That would explain why your mobo tests fine, and why the card works fine in other systems.

Presumably the PSU is a common theme to your tests that you may have overlooked - any way to tests another?
Click to expand...

It could be, that`s why I`ve tested the setup with a Corsair CX500 and my Coolermaster M700. I also tested the GTX460 in a friend`s PC powered by my M700, it worked fine.

Anybody that can come up with a suggestion that I haven`t tried, and seems reasonable, I`ll buy them a pint (or two). See post #4 for a list of the things I remember trying.
 
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Ezyryder said:
just send both back if you bought from OCUK!!!
Click to expand...

The motherboard came from elsewhere. They were less than helpful when I explained the issue. Not only that, the motherboard was exactly 12 months old on the day I recieved the gfx card from ocuk, it was a day over 1 year old when I realised there was an issue.

I`ve been thinking that it`s a good job I`ve many years experience "faffing" about with PCs, and had a career in TV repairs for nearly 20 years. If this was my first or second PC build, and I didn`t know anyone with donor parts to test with, I`d be in a real spot of bother.
 
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I know it's weird, but for weird situations you need weird solutions ;-)
Did you try to underclock both CPU and GPU to safe values ? CPU = CoolNQuiet lowest step with voltage drop, GPU = -20% of everything (core/shaders/mem). I don't recommend you to work at those parameters, but for testing purpuses it's good to know if there are freezes, too - I've got some suspiction.
What's the rest of your components (I mean CPU, memory type, PSU model) ? What's the chipset temps when freeze occurs ?

P.S.
You are not alone ;-)
http://forums.nvidia.com/index.php?showtopic=181737
 
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biuro74 said:
What's the rest of your components (I mean CPU, memory type, PSU model) ? What's the chipset temps when freeze occurs ?
Click to expand...

See post #4 for an idea of what I`m using, or have tried. Everything tested at default clock speeds/voltages.

To be more specific.....

CPU x2 5000+, upgraded to a 550BE (fault present on both). I even tried an LE-1640.

PSU Coolermaster SilentPro M700 (slightly over spec ;))

OCZ Platinum RAM 4gb (2 x 2GB) DDR2 800.

And I`ll repeat again, when I put all of these components with a different MB, the GTX460 works perfectly. Build the system with my MA790X-UD3P (which had previously worked perfectly with a HD4850), and the PC locks up after a few minutes of graphics benchmarking. Yes, I`ve tried several fresh Windows installs.

The GTX460 could freeze @ 37 degrees, 50 degrees or at it`s maximum load temp of around 60 degrees. Temperature didn`t seem to be the issue.

BTW. 550BE max temp under load is about 50 degrees.
 
Is something happening to the Mboard only when it is in your case, like a short or something. Just wondering if Gigabyte were testing on a bench out of the case and therefore not the same conditions.:)

Also, did the 4850 use one or two Pci-e six pin connectors and could one of the connectors be faulty.
 
Last edited:
rolypolyman said:
Is something happening to the Mboard only when it is in your case, like a short or something. Just wondering if Gigabyte were testing on a bench out of the case and therefore not the same conditions.:)

Also, did the 4850 use one or two Pci-e six pin connectors and could one of the connectors be faulty.
Click to expand...


I have extensively tested the motherboard outside of the case after they returned it. The same fault was still present.

I`ll try and stay calm about the PSU question (I have repeated this a few times now).........

The GTX460 works perfectly with the same PSU with a different motherboard. I have also tested the system with a different PSU. Read post #4 for most of what I have tried. Post #10 also explains the PSU situation.
 
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CowboyTony said:
I have the exact same motherboard and a Gigabyte GeForce GTX 460 Super Overclock 1GB DDR5(GV-N460SO-1GI) and I too have the same symptoms as you. We're not alone and there are reports all over the net of 400 series cards not working properly with certain motherboards. The best thread on this is at http://forums.nvidia.com/index.php?s...ic=187401&st=0
Click to expand...

That`s what I was waiting for.

Thank you.

(Not conclusive proof of where my problem lies, but it gives me a clue. Gigabyte never even hinted that this might be the case. I`ll await to see what they suggest).
 
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