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[Official] AMD R9 280X / 280 & 270X / 270 Owners Club - Page 140

post #1391 of 9745
you can get the correct program online too , just go to the site of your manufacturer. but if you use msi afterburner for an asus or sapphire card for exemple i m not surprised it doesn't work
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post #1392 of 9745
Thanks man. Looks like I need to use the Sapphire Trixx Software. Will report back with findings.
post #1393 of 9745
Stock is 1020/1500/1162v

Pushed to 1150/1500/1200 + 20% Power - was able to get it into game (BF4) but crashed moments later. You think push voltage more?
post #1394 of 9745
It was bound to be brought up...

A high ASIC quality means you can overclock with less voltage - low ASIC cards require more.

HOWEVER, high ASIC cards use more CURRENT - low ASIC cards require less.

Therefore high ASIC cards are hotter than low ASIC cards at the same voltage, however they are both the same temps at the same clock speed.

The ONLY time a low ASIC card will be a problem is if your temps are good, but you can't increase the voltage anymore to achieve better overclocks (happened to me). High ASIC cards don't have that problem. Temp is often the limit of performance for high ASIC cards, while voltage is often the limit for very low ASIC cards. In addition, because low ASIC cards demand more from their VRM, they are more likely to fail sooner.

Having just returned a card with a 57% ASIC, I can assure you guys that ASIC quality (at least on the ends of the range) can make a HUGE difference.

In total, I have probably spent a full 12 hours looking ASIC information up. I returned my card early last week so I had some time to really look into it.

This is the single best post I could find on the subject:
http://forum.beyond3d.com/showpost.php?p=1344188&postcount=44
Quote:
This is normal for a given silicon process (say 0.13u) to have such variation that some transistors in certain chip die have shorter channel length (less than 0.13u) or some have longer channel length. Those that have shorter channel length *HIGH ASIC* have faster intrinsic speed and can run as fast when smaller Vcore is applied (pros). On the other hand (cons), due to the lower threshold voltage which draws higher leakage current and generates more heat at the same higher Vcore, these chips can run as fast at a low Vcore as the higher Vcore rate chips, but they will max out at a lower Vcore compared to the higher Vcore rated siblings.

In case you were wondering, I haven't found any trend in ASIC distribution between card manufacturers. You are just as likely to receive a given ASIC quality regardless of how much you spent.

Finally, this is why I went with the 280X DirectCU II. My card comes on Wednesday, but if I get stuck with a low ASIC chip (even though I would probably return it) the card will have more phases (it has a total of 12) to provide higher voltage without vdroop... hopefully.
Edited by TempAccount007 - 11/10/13 at 3:14am
post #1395 of 9745
Quote:
Originally Posted by 856Media View Post

Stock is 1020/1500/1162v

Pushed to 1150/1500/1200 + 20% Power - was able to get it into game (BF4) but crashed moments later. You think push voltage more?

If you're still on stock voltage than heck yeah...increase that baby.
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post #1396 of 9745
Quote:
Originally Posted by ImJJames View Post

If you're still on stock voltage than heck yeah...increase that baby.

Any thoughts on what a safe ceiling might be?
post #1397 of 9745
Quote:
Originally Posted by 856Media View Post

Any thoughts on what a safe ceiling might be?

depends on your temps. use HwInfo64 to monitor both Gpu's CORE and VRMs(just as important). on air, i suggest staying away from 1.3v for the core. max i would venture with proper temp is 1.27v. for the memory 1.6v should be plenty.

are you still using the Phenom? if you are, then i suggest to keep the gpu at stock and oc'ed the phenom to the moon.
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post #1398 of 9745
I didn't even know anything about ASIC quality before I saw it mentionned in here. For people wondering GPU-z can read your card's ASIC quality. You just have to left click in the top left corner of GPU-Z and chose "Read ASIC Quality". A window then pop ups with your card's ASIC quality and its meaning.

Mine is 63.7%. Which means it would've done better underwater smile.gif
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post #1399 of 9745
What are your guys thoughts on the Sapphire Vapor-X R9-270X? I would go for the Toxic, but that's too big for my case. Anyone here own a 270X Vapour-X. (too many X's in this post biggrin.gif). Should I go for MSI or Gigabyte instead?

It's my first time going AMD, so I'm a little nervous. I'll be buying a card in December, after Mantle has launched too see if it's worth it for the performance increase. Also, hopefully by then they have Never Settle packages for the R9 series cards.

I'm running at 900p, so a 270X should last a while right?

Is it just me, or is there a distinct lack of reviews for the 270X when compared to other cards?
Edited by TheImpZA - 11/10/13 at 7:00am
post #1400 of 9745
When i clock my sapphire dual x r9 280x with Sapphire Trixx i have 1 problem.
After sleep PC voltage in sapphire trixx going on stock 1.200... and every time i need to move to 1.3v this is my voltage for 1220 core and 7200 memory.
How to change this option after sleep my voltage be stable???

THANKS !!!
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