Well, tested again, 1300 worked. but 1350 fails after 3-5 seconds. hmm, odd... Tomorrow ill check what kind of mem it has, if it's the same perhaps just a bad example. ill try vmod anyway, see if it scales.
Highest 'non artifact' canyon i had was 1070 mhz, 1100 mhz finishes aswell, but at the end there are quite some dots on the screen.
and rising from 1.28 to 1.32 didnt matter anything, so i guess that's just the limit. ill try with max vcore and 100% fan tomorrow though, just to check.
Here is what kinds of vram the 5770s have.I dont knOW any card wearing ant other type that the T2C...
Mine has these and it does 1400 without v mods or anything...
Please report your batch!!!
Has anyone used ATI Overdrive to overclock their 5770's in crossfire successfully?
I'm using the 9.11 beta drivers in XP x64. One card overclocks fine using overdrive, however in crossfire they do not. GPU-Z 0.3.6 shows stock clocks regardless of settings, and there is no change in 3DM06 score overclocked vs stock.
5700 series do seem to have nice OCing Hynix ram. why put the 1250-1300mhz samsung ram on the 5800 series, and the 1350-1450mhz hynix ram on the 5700 series. Seems like it should be the other way around.
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Quote:
Originally Posted by AndreYang
Damn...Today is 11/06, but [his] bios date is 11/07........lol
Odd, incrementing it from 1300 with steps of 10 all of the sudden did get me past 1350, im at 1370 right now, but my canyon ended 0.3 / 0.4 fps lower then at 1360, ill test some more, but i guess 1360 is my limit then. so i suppose 1070/1360 is my sweetspot, not to bad
5700 series do seem to have nice OCing Hynix ram. why put the 1250-1300mhz samsung ram on the 5800 series, and the 1350-1450mhz hynix ram on the 5700 series. Seems like it should be the other way around.
Maybe the Samsung is more expensive, and ATI dont pick and choose based on which ram overclocks more. But bear in mind going over 1300 Mhz sharply reduces performance, I would think that to get the same performance as you do at 1300 Mhz, you need to OC them to around 1400, before you get a tiny gain at 1445. I prefer to just keep mine at 950 / 1250 for 24/7 use, higher only for benchmarking.
I found a game that my cards fail in at 1000 Mhz though - Dragon Age Origins Character Builder, so I had to reduce them back to 950 Mhz
They start out fine, then start to artifact and eventually the PC crashes. Hopefully once I manage to find some suitable aftermarket coolers, they will be better.
Quote:
Originally Posted by nvrmind
Has anyone used ATI Overdrive to overclock their 5770's in crossfire successfully?
Try using MSI Afterburner instead, it is far better then any other overclocking tool I have tried up to now
I'll take a look at my ram chips now and write down the number just to confirm what they are, brb.
Yep, they are T2C chips. I wish I could have had some ROCs instead lol.
Quote:
Originally Posted by thijs
Well, tested again, 1300 worked. but 1350 fails after 3-5 seconds. hmm, odd... Tomorrow ill check what kind of mem it has, if it's the same perhaps just a bad example. ill try vmod anyway, see if it scales.
Hope to put it under cold soon
Reminds of my X1900 xtx. I bought the xtx because it had better ram then the xt, but the one I got wouldnt overclock at all. Then my 4850's were equally as bad overclockers on the Ram, come to think of it, they were both Powercolor cards.
My Club 3Ds, Gigabyte and Sapphire cards have all had good clocking ram chips
Quote:
Originally Posted by thijs
Odd, incrementing it from 1300 with steps of 10 all of the sudden did get me past 1350, im at 1370 right now, but my canyon ended 0.3 / 0.4 fps lower then at 1360, ill test some more, but i guess 1360 is my limit then. so i suppose 1070/1360 is my sweetspot, not to bad
Yea, they will slow down at some point when increasing over 1300 Mhz, as you can see in my tests:
Having some issues with TF2 + Zombie Panic Source flickering with Crossfire enabled using 9.11 beta drivers with XP x64. I'll see faint horizontal lines scrolling up and down, as well as a constant flickering like I can see the screen refreshing. This happens at the title screen, as well as in game.
L4D works fine with crossfire enabled, no issues with the flickering.
Wondering if this is just an issue with the beta drivers?
Catalyst AI set to 'Standard'
Vsync Enabled
To keep somewhat on topic:
Flashed both my Sapphire cards with the Asus bios. Getting around 26,100 @ 935/1350 in 3DM06 with the rig in my sig. Haven't tried increasing vgpu yet. 935/1350 gave me 300 more points in 3DM06 over 935/1300.
Having some issues with TF2 + Zombie Panic Source flickering with Crossfire enabled using 9.11 beta drivers with XP x64. I'll see faint horizontal lines scrolling up and down, as well as a constant flickering like I can see the screen refreshing. This happens at the title screen, as well as in game.
L4D works fine with crossfire enabled, no issues with the flickering.
Wondering if this is just an issue with the beta drivers?
Catalyst AI set to 'Standard'
Vsync Enabled
To keep somewhat on topic:
Flashed both my Sapphire cards with the Asus bios. Getting around 26,100 @ 935/1350 in 3DM06 with the rig in my sig. Haven't tried increasing vgpu yet. 935/1350 gave me 300 more points in 3DM06 over 935/1300.
BTW really liking MSI Afterburner.
Ur using Dx11 HD5770 cards on XP dx9
Just check the refresh rate setting & set it @ 60
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|~Prolima Megahalems~|Lapped
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|~Sapphire HD5770 ~|gtx295 gone for better (bought 5770 as backup until nVIDIA arrives with there cards)
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anyone has any idea how you can remove the limitation ( or go even higher ) with memory speeds? im limited at 1440 now, and it still seems to scale, not alot, but worth it anyhow.
Or is 1440 just the limit?
anyone has any idea how you can remove the limitation ( or go even higher ) with memory speeds? im limited at 1440 now, and it still seems to scale, not alot, but worth it anyhow.
Or is 1440 just the limit?
I just picked one up for craps and giggles, but have you tried in the AMD GPU Tool?
Ah, that'll be my next victim then, thanks!
Figured out the max was 1445 btw, but that 5mhz wont help a lot :P
Next week ill be putting it under cold, hope to see the core scale and get some nice scores going.
Not sure if looking in a mem vmod is worth it, but first to check that amd tool!
Ah, that'll be my next victim then, thanks!
Figured out the max was 1445 btw, but that 5mhz wont help a lot :P
Next week ill be putting it under cold, hope to see the core scale and get some nice scores going.
Not sure if looking in a mem vmod is worth it, but first to check that amd tool!
Works well coupled with Afterburner. My card was locked out at 960 on both CCC and Afterburner but AMD GPU Tool made flashing the bios unnecessary.
Hey rev, thanks for the tip. Amd GPU tool did work indeed!
Pretty much found the limit on air without Vmods so far,
Max memory is 1468.75 mhz ( in amd gpu tool )
and max core is 1070, 1075 is possible aswell, but some light artifacts, dont like that.
Going to see if it's worth to vmod the memory, does hynix mem scale with extra voltage anyway?
Core vmod isnt worth it yet i think, im at 1.28Vcore or so, more doesnt help, atleast not yet, perhaps under cold it will, but there is still like 0.1V extra i can give it, so ill wait with that.
//edit that's 3dmark06 im talking about, havent tried anything els yet.
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