X1800XT - questions about 2D/3D modes and OC

[the Chase]

Originally posted by: Golgatha

Originally posted by: 5150Joker

Originally posted by: VERTIGGO
How much should I expect out of an XT? My pc crashed and the last clock I saw was 637/725.

You must be doing something wrong. You should get at least 700 mhz core out of the card with 1.4v.

My memory has absolutely no problem getting 800Mhz, but the core seems to artifact lower than 690 core on my card even at 1.4V. I haven't disabled the background services though, but I think the Beta ATI Tools stops those services before attempting to OC your card.

:thumbsup:
Yep- try the beta 14 version of ATI Tools.
I also suggest removing CCC completely(and .net if you want) and download and install ATI tray tools to set your AA/AF,etc.
Google each and should be able to find them.

 

[Golgatha]

Originally posted by: the Chase

Originally posted by: Golgatha

Originally posted by: 5150Joker

Originally posted by: VERTIGGO
How much should I expect out of an XT? My pc crashed and the last clock I saw was 637/725.

You must be doing something wrong. You should get at least 700 mhz core out of the card with 1.4v.

My memory has absolutely no problem getting 800Mhz, but the core seems to artifact lower than 690 core on my card even at 1.4V. I haven't disabled the background services though, but I think the Beta ATI Tools stops those services before attempting to OC your card.

:thumbsup:
Yep- try the beta 14 version of ATI Tools.
I also suggest removing CCC completely(and .net if you want) and download and install ATI tray tools to set your AA/AF,etc.
Google each and should be able to find them.

I should restate. I'm using the Beta 14 and can't get my core up much past 640 without it artifacting. Is 1.4v too high or does my core just not have what it takes to make 700Mhz? CCC is reporting the OC values correctly and the temps get up to what I'm used to seeing while playing games when just running the artifact checking tool in ATItool.

 

[mauri]

ATI Tool just doesn't seem to work. even sub stock settings keep crashing the windows. I disabled both of the ATI services, but still ATI Tools show me 600/700 clocks, and if I even try to move them (+1) it crashes.

ATI CCC seems to overclock my card to 670/800, but that seems as high as it will go. It would be nice to try the OC with bit more voltages than stock 1.275V (~1.3V).

 

[the Chase]

Hmmm.. I still think you should try uninstalling CCC(you can always download it from ATI and re-install it) and uninstall Tray Tools if you have it and only have ATI Tool beta 14 running when you try to OC the card. This might not solve these problems but I think it may. After you find your max/close to max OC with that then reinstall Tray Tools for your settings and skip CCC. It was awhile ago- but I thought I read that there may be a incompatability problem with ATI Tool 14 and CCC.

Edit- and no 1.4V is not too high- you will probably need that to hit 700-720 range(this also depends on your cooling-crank the fan speed up to 60-70% to keep temps down if you are playing with the voltage).

 

[mauri]

I was also thinking of that CCC might be causing incompatabilities with ATI Tools. I will try that tomorrow. I'm planning to uninstall both CCC and ATI Tools (but not the ATI drivers), then disable the ATI Services and install the ATI Tools again. Hope that it will work. I need to tweak the voltages if I want to get around 700Mhz. Or just satisfy with the 670 that I'm currently running.

1.4V seems fine, it is ~110% of the original, and the X1900 seems to be doing ok with the same cooling. I haven't installed Tray Tools, trying to keep it simple. altough I liked how I could monitor the temperatures with tray tools in icon tray.

 

[Munky]

Did you remember to manually set the voltage to 1.4 before overclocking. Also, I noticed that if I try to OC while the furry cube in Ati Tool is displayed, it freezes. But if it's hidden, then it works fine.

 

[mauri]

Yes, I changed it manually, but I haven't tryed with 1.4V yet. I tryed to start with bit more modest voltage change at first. And thanks for the tip Munky, I had that furry cube displaying while overclocking, And it froze (or random colored/striped screen). I have to try without it.

 

[Golgatha]

Originally posted by: mauri
Yes, I changed it manually, but I haven't tryed with 1.4V yet. I tryed to start with bit more modest voltage change at first. And thanks for the tip Munky, I had that furry cube displaying while overclocking, And it froze (or random colored/striped screen). I have to try without it.

Hmm, I'll have to try that too. Uninstalling CCC and disabling ATI's services didn't seem to help anything. Perhaps all this effort isn't worth an extra 5FPS when the games I have play fine at 1600x1200 with 4xAA and 8xAF though .

 

[Munky]

1.4v is the default voltage the card uses when in 3D mode and the ati services are enabled. Since you disabled the services, you have to manually raise it to 1.4, otherwise you're using lower voltage that what the card is supposed to be running, and it wont overclock as well, if at all.

*edit: actually, that's what the x1900xt uses. You have an x1800xt, so it may be slightly lower, but I doubt it.

 

[chinkgai]

Originally posted by: munky
1.4v is the default voltage the card uses when in 3D mode and the ati services are enabled. Since you disabled the services, you have to manually raise it to 1.4, otherwise you're using lower voltage that what the card is supposed to be running, and it wont overclock as well, if at all.

*edit: actually, that's what the x1900xt uses. You have an x1800xt, so it may be slightly lower, but I doubt it.

stock voltage is actually 1.425v in 3dmode

i've measured it with a digital multimeter

actual voltage measured with digimultimeter was around 1.40ish...dont remember exactly what...but very close to an even 1.4v so that means its 1.425 via the setting you see in say, atitool for example

every voltge u set it at via atitool, actual voltage given to the card is about .025 less (1.425 = 1.4 actual, 1.5 = 1.475 actual, etc)

and yes i've measured more than one xtx and xt as well


edit: oh im talkin about x1900 series as well...i forgot what my old x1800xt was...i think 1.3v or 1.4v even for 3dmode and 1.2v for 2d mode

 

[XspEeD]

hi guys,

i have question about ati x1800lx 256mb, i have been pushing this card to 685/747 ~ 1.3v/2.4v/1.889v with accelero x2 cooler
do you think i can get higher clock ?
i try to raise vcore but i still can't reach 700
same thing happen with the memory, i try to give more voltages but it seem imposible to touch 750.
i'm using ati tool and omega driver 6.3

do you guys think i can get higher clock if i flash my x1800xl 256mb with x1800xt 256 mb's bios ??


my spec:

athlon 64 3500+ @2744Mhz , 343*8 1.7v
dfi lanprty ultra d
ati x1800xl 685/747 1.3v/2.4v /w accelero x2
corsair vs 230 Mhz 2.5-4-4-7
tagan 480W u22

 

[mauri]

Unfortunately the other DVI output was broken in my X1800XT, so I had to take it back to the store to get it replaced. The store didn't have any of them stock, so I payed the difference and got a Sapphire X1900XT.

Playing around with it I noticed, that it was much quieter than my previous X1800XT, yet the idle temperatures were higher: 58 C. This is the case also while gaming; the fans might ramp up for a moment (few seconds and then back down), but it is MUCH quieter than the X1800XT, which made constant loud howling sound every time in 3D-mode. My current X1900XT is almost as quiet in 3D-mode as it is in 2D-mode. I'm not sure yet does this cause overheating in some cases. Is this something I should be concerned about?

I'm able to clock it at 675/775 in CCC center, but at max Overdrive (690/800) I'm starting to get artifacts. I think that is due to overheating, since the Fan doesn't go to higher RPMs even then (or not as high as I would thought it would considering the boise the X1800XT used to make). I tried to mess around with fan speeds in ATI Tools (without success, since I still need to uninstall CCC), and it seems that applying default fan settings raises the RPMs little, but I still don't know the which would be good fan speed and voltage settings (in ATI Tool) for X1900XT?

I think that the ATI Tools is a good tool to set the fan speed, atleast CCC doesn't seem to have one, but how do I save the settings, so that they are loaded each time I boot up?

I'm not interested with ultra overclocking (raising voltages) with this card (though I'm not sure if playing with Overdrive already voids my warranty?), but I'm tempted to try to get this running with maximum overdrive (and see if this is heat related issue). I might need to get a better cooler, it might solve some issues (atleast the noise, but aftermarket cooler also voids the warranty), and I have to test it with higher RPMs first. I'm still tempted to buy the AC Accelero X2.

 

[mauri]

Well I got the ATI Tools working, I disabled the ATI services and uninstalled CCC. With stock voltages and cooler set to max (fan at 100% all the time) I could run few loops of 3DMark06 at 700/800. But If I lower the fan RPM to more humane levels (automated) my card starts to artifact after 1.5 - 2 minutes of stressing. So I figure, that this is heat related issue, but I also think that it is starting to close the maximum OC of the card.

675/775 works perfectly, mem at XTX speeds and core bit overclocked from XTX. I'm fine with that. This card can handle all the games I play anyway.

By the way, Is the XT memory timings tighter than the timings at XTX-cards? I also remember reading that lowering memory voltages helps some people to get more overclock from the memory. Is that true and what are the preferred voltages then?

 

[the Chase]

Not sure about 1900 series voltages but found out from another forum (macci) that the stock 3D voltage for the X1800XT's is 1.35V for above posters with X1800's.

 

[mauri]

Does anyone know that do XT models (Sapphire etc.) still use 1.1ns memories like XTXs, or have they start using the 1.2ns moduls? Could this be the reason that the memory doesn't overclock past the levels i'm getting at the moment and is there any other way to check this than take the HSF off and look at the numbers on the memory moduls?