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Author Topic: 5830 PROBLEMS  (Read 2292 times)
P4man
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September 21, 2011, 12:33:28 PM
 #21

my sapphire xtreme 5830 does not have a VRM trmp sensor (that I know of anyway, and GPUZ does not report anything that looks like a VRM temp).

In GPU-z its called VCC Phase I think. But not all cards support it. If yours doesnt, that would have me worried:

I use an aftermarket cooler on my 5850. I use the standard base plate to keep the ram and VRMs cool. With the stock cooler, even at 100%, I had much higher GPU temps and comparable (but still slightly higher) VRM temps than what I have now.

At stock voltage and stock speed my VRMs go to ~75C, while my GPU itself is no hotter than 45C. Overclocked to 900 MHz (from 725) and still at stock voltage,  VRMs are closer to 90C, GPU temp is still only 50C.  90C seems too high for me, even if they are supposedly rated for 120C,  so I undervolt and clock my card at 850.

THose of you overclocking and particularly overvolting  should really worry about those VRMs I think. Its not difficult to keep the GPU cool, but  I wouldnt be surprised if you were hitting way above 100C on the VRMs. I read somewhere on this forum you can buy IR thermometer for a $10, Id consider doing just that if your card doesnt support VRM monitoring.

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vapourminer
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what is this "brake pedal" you speak of?


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September 21, 2011, 11:19:37 PM
 #22

my sapphire xtreme 5830 does not have a VRM trmp sensor (that I know of anyway, and GPUZ does not report anything that looks like a VRM temp).

In GPU-z its called VCC Phase I think. But not all cards support it. If yours doesnt, that would have me worried:

nothing like that with the sapphire xtreme 5830. GPUZ reports a gpu temp off by itself, and gpu temps1, 2, and 3 a bit lower in the list. all track to within 3* C, so I doubt any of them are a VRM temp.

the VRMs have a pretty beefy separate heatsink, and its an open case with an external 120 volt ~200 CFM 120mm aimed at it.  so dig till ya drop baby! seems lots of this particular model 5830 are running in the 1000+ range and so far so good.

I do consider that particular card disposable though. no resale value to speak of and no use besides mining to me. guess we will see.
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