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post #1631 of 4152
Quote:
Originally Posted by BromoL View Post

Haven't there been reports that the driver reduces power limits for unsigned bioses? Found it here.

VRM temperatures should not be taken verbatim. There is only on sensor on the PCB in the vincinity of the VRM. "ddd000" obviously should result in different temperatures for the single phases that we cant meassure. It might actually reduce temperatures for the three phases with lower load. Equal load distribution should result in a minor efficiency gain and more equal temperature distribution. Locally it can go in both directions. For high overclocks on reference cards you have do decide whether you want to put the stress on the 12V contacts of the slot or the three VRM phases that are powered from the connector (the connector itself is fine). At +0% power limit i go with 000000 most of the time, because thats my default efficiency profile. When at +30% or more i would shift some load to the 6-pin.

Thanks for your feedback on WattTool. I observed the memory scaling issue only once. I changed memory voltage (not clocks) with WattTool while Luxmark was open (but paused). The GPU was in P6 (1236MHz, not max) and memory also clocked up. Thats probably because Luxmark has OpenCL queues open even when paused. After that i only got half the performance in Luxmark, but everything was fine after a reboot. I think i had HWiNFO open at that time.

Since I was one of the fools that did 1470 @ 1.32v on 16.7.1 I know the approximate burn point of my motherboard. There's chip with pci-express going through it that burned. Slot and 24pin was fine. 000000 is probably okay at a low oc for my motherboard. Since I'm getting fewer issues I'll at least wait until I re-do the pads and run at 000000 and stock voltage for now.

Interesting about the power limit being lower on unsigned bios. I thought that was just 16.9.1 and higher. I'm running test mode and the patched atikmdag.sys on the 16.8.2 driver. I'll go stock and embd and see. I'll wait until after I re-do the pads though. I was getting what could have been a thermal limit or failure after about a couple of hours or so of gaming. Video would sometimes quit outputting in GTAV. No lockup or video driver reset. Hitting the power button would sometimes allow a graceful shutdown. At the very least the hdd light would react to hitting the power button. Didn't have that problem in other games, but it's acting enough like a thermal problem that it prompted me to go down to stock voltage. If I immediately rebooted and went back to gaming it would happen more quickly the 2nd time which is the hallmark of a thermal limit.

The scaling issue you describe is similar and probably related but separate. I've had that one too. Cold boot takes care of it. The memory scaling issue won't go away once it starts without a DDU for me. Rather than performance being cut way way down, it's more subtle. You'd almost not notice. Valley fps goes down three or four fps and no longer scales with changes to the memory clock. OCs that weren't stable, suddenly seem stable and power usage for the card is reduced slightly. See looncraz's thread: http://www.overclock.net/t/1609366/amd-16-8-1-16-8-2-memory-clocks-not-working.
post #1632 of 4152
Thread Starter 
Quote:
Originally Posted by greytoad View Post


The scaling issue you describe is similar and probably related but separate. I've had that one too. Cold boot takes care of it. The memory scaling issue won't go away once it starts without a DDU for me. Rather than performance being cut way way down, it's more subtle. You'd almost not notice. Valley fps goes down three or four fps and no longer scales with changes to the memory clock. OCs that weren't stable, suddenly seem stable and power usage for the card is reduced slightly. See looncraz's thread: http://www.overclock.net/t/1609366/amd-16-8-1-16-8-2-memory-clocks-not-working.

The only time I have issues with clocks is if I change speeds with HWinfo open otherwise everything is fine. I've gotten into the habit of closing HWinfo first and if I forget I reboot and it's ok
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post #1633 of 4152
Quote:
Originally Posted by Echoa View Post

The only time I have issues with clocks is if I change speeds with HWinfo open otherwise everything is fine. I've gotten into the habit of closing HWinfo first and if I forget I reboot and it's ok

I've had the issue using just Wattman monitoring too. So I reboot and use wattmon. Issue hasn't happened since.

edit: also the issue that's fixed with a reboot seems separate but related. When the memory scaling issue occurs for me, there's no way out other than DDU. No amount of rebooting takes care of it. Both issues probably have the same cause: changing memory clocks or voltages while monitoring software is open. It's more intermittent when it happens with Wattman monitoring but it has happened for me at least twice with HWiNFO64 not open.

edit2: I know you've been testing memory bandwidth so you'd probably have noticed if you'd experienced it. It's really subtle and easy to miss. 2fps difference in valley is all we're talking about. DDU and reapply your oc with just a wattmon ini profile and if your valley score goes up slightly you had the issue and didn't know it. (i2c monitoring off.)
Edited by greytoad - 9/28/16 at 10:11am
post #1634 of 4152
If anyone is interested here is a few benchmarks.

R9-290 vs RX-480 in firestrike P. R9-290 was clocked at 1040/1500 and 1235/1500. The RX-480 is at stock settings, I did boost the gpu core to 1300 over the default 1266 but that was the only change.

The 290 is much faster than a RX-480 when overclocked. Granted I have just begun to play around with overclocking the RX-480. Waiting for the bitspower gpu block I ordered to arrive to do a full water vs water comparison.

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post #1635 of 4152
Quote:
Originally Posted by ebduncan View Post

If anyone is interested here is a few benchmarks.

R9-290 vs RX-480 in firestrike P. R9-290 was clocked at 1040/1500 and 1235/1500. The RX-480 is at stock settings, I did boost the gpu core to 1300 over the default 1266 but that was the only change.

The 290 is much faster than a RX-480 when overclocked. Granted I have just begun to play around with overclocking the RX-480. Waiting for the bitspower gpu block I ordered to arrive to do a full water vs water comparison.


You know, you can just give a link to the comparison smile.gif Like this:

Stock 280X vs very hard OC 280X vs stock 470 vs turbo clock 470:

http://www.3dmark.com/compare/fs/8126979/fs/8163876/fs/10016734/fs/10212312
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post #1636 of 4152
Quote:
Originally Posted by ronnin426850 View Post

You know, you can just give a link to the comparison smile.gif Like this:

Stock 280X vs very hard OC 280X vs stock 470 vs turbo clock 470:

http://www.3dmark.com/compare/fs/8126979/fs/8163876/fs/10016734/fs/10212312

I'm aware I can post a link. I didn't post a link because its easier to view in a forum thread with the picture being visible, vs just a link. Interesting comparison.
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post #1637 of 4152
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Quote:
Originally Posted by greytoad View Post


edit2: I know you've been testing memory bandwidth so you'd probably have noticed if you'd experienced it. It's really subtle and easy to miss. 2fps difference in valley is all we're talking about. DDU and reapply your oc with just a wattmon ini profile and if your valley score goes up slightly you had the issue and didn't know it. (i2c monitoring off.)

Ill have to check later tonight after work. Ill do a full DDU and see how things go. Im actually beating my old 290x (by a couple FPS) now after tweaking everything. I did encounter the fan issue today though when suddenly my nitro fan speed shot up for no reason for a second.
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post #1638 of 4152
Quote:
Originally Posted by Echoa View Post

Ill have to check later tonight after work. Ill do a full DDU and see how things go. Im actually beating my old 290x (by a couple FPS) now after tweaking everything. I did encounter the fan issue today though when suddenly my nitro fan speed shot up for no reason for a second.

I should note that I don't really know it's DDU that's solving it. I also uninstall with AMD's package before rebooting into safemode to run ddu. That's just the way I always do it. I haven't dug down to see if all I need to do is uninstall and reinstall.

If you're beating a 290x with your 470, you're probably not having the issue.

The extend overclock limits from afterburner persist after a DDU and after an uninstall of Afterburner. (On the stock BIOS I was able to go above 1150mv without an offset even on a stock driver after DDU and removing the check from from extend overclocking limits and uninstalling afterburner.) I'm wondering if the power limit being locked to 20% even if 50% is visible, is being done in a similar fashion. After this last format and reload I first tested 16.9.2 with my custom bios before doing a DDU and 16.8.2 with the patch. The power limit issue was still there. After I re-do my loop and my thermal pads, maybe I"ll do another format and use the stock Sapphire reference bios.
post #1639 of 4152
One thing I noticed after enabling in game monitoring, even though my GPU is at 100% Usage the clocks never hit the clocks I set in MSI Afterburner which is the stock boost clock of 1338/2000. GPU clocks seem to sit around 1200/2000 and temps are below 70*C. Trying to figure out why this is happening

Can anyone help me.
 
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post #1640 of 4152
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Quote:
Originally Posted by Durvelle27 View Post

One thing I noticed after enabling in game monitoring, even though my GPU is at 100% Usage the clocks never hit the clocks I set in MSI Afterburner which is the stock boost clock of 1338/2000. GPU clocks seem to sit around 1200/2000 and temps are below 70*C. Trying to figure out why this is happening

Can anyone help me.

Do you have power saving/efficiency on and ulps enabled?
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