vdroop I hate you.

[lavaheadache]

Erm, this seems random.

Although I think he was kidding he stated in this thread that the card was all boxed up and on it's way back because of the vdroop he was seeing when the card was overclocked.

 

[Face2Face]

Whats your droop like at 1.175v?

Not sure, I didn't get a chance to test it last night. I will let you know..

 

[BallaTheFeared]

Thanks :thumbsup:

 

[wand3r3r]

I take it you don't have a multimeter or access to one? If you use two applications you get two different readings, I think a multimeter would solve the question of what the voltage is doing exactly. I suppose even if AB is inaccurate it may still portray the 'droop' correctly even if the actual amount is off(?)

 

[Face2Face]

Well I ran a couple of benchmarks and it appears I have some vdroop. Looking at HWInfo and GPU-Z I am seeing some conflicting numbers. Here take a look.

 

[BallaTheFeared]

GPUz shows 1.166~ for me at 1256mv while bit mining

If that's correct what you're showing, I get about 20mv more voltage than you for 81mv more applied.

Nice card btw!

 

[Face2Face]

GPUz shows 1.166~ for me at 1256mv while bit mining

If that's correct what you're showing, I get about 20mv more voltage than you for 81mv more applied.

Nice card btw!

Thanks! Keep in mind I don't have a stock HSF. Maybe most 7950's experience a little vdroop?

BTW can you game @ 1250 on the core? I see you ran 3DMark @ 1250. If so, how are your temps.

 

[MeldarthX]

as I said Balla - gpu-z is terrible at reporting properly - check with a couple other programs and then volt meter 🙂 only truely way to know 😀

As I said are you unstable?

 

[BallaTheFeared]

MSI with

VDDC_CHL8228_VIDReadback =0
MVDDC_CHL8228_VIDReadback =0

1.12~ for 1.2 set = 80mv vdroop - zug zug

Only way to fix it is to solder on the card 🙁

 

[chimaxi83]

Have you bothered checking voltage with a multimeter, like has been suggested?

 

[BallaTheFeared]

I'd have done it first thing if I had one, and I'd have checked wattage if I had a killawatt 🙁


The only real downside here is that I have less voltage to play with than the 1.3v allowed, certainly not complaining about a chip using 1.12v @ 1150MHz while mining if that's how it's coming off!

 

[blackened23]

It's worth checking with a digital multimeter. Why would you need a killawatt? Those things (DMM) cost like 8-10 bucks. I know afterburner absolutely does not give correct voltage readouts for my MSI lightning 680s - what is reported in afterburner is lower than actual voltage used. That could be because afterburner does some neat voltage offset software trickery with the lightnings, I don't know what the deal is. But in any case, software voltage isn't always accurate.

I haven't used 79xx in a long time but I don't recall vDroop at load ever happening. I could be wrong though, did they change that with the GE?

 

[BallaTheFeared]

I'll have to ask around, they're pretty expensive for what my use for it would be.

 

[chimaxi83]

You can get a decent multimeter for about $25. Kill a Watt usually goes on sale for $20 shipped at Newegg.

I don't know Blackened, Afterburner, GPU - Z, and my meter all match up with my 7970 Lightnings. I don't know what's up with Balla's card, but can't really be sure without a meter. Balla, get on it 😉

 

[BallaTheFeared]

Taking donations :thumbsup:

Toss me a few recommendations that won't get shot down for being "crap", I'll see what I can do >.<


http://www.frys.com/product/6515363?source=googleps

lulz