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Successful X1800XL 512mb flashed to XT!

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I am not 100% sure if you lose the warrenty for overclocking because of the fact that the bios allows for voltage adjustments and catalyst control center has an overclocking feature, which is licensed by ATI. Seems to me like ATI supports overclocking. Although i could be wrong about this so dont take my word for it. I have always been one to take risks and as long as i dont push voltage too high i think risk of killing the card is rather low.

However, flashing the bios does void the warrenty. That i know for a fact.
 
I plan to run the card at stock for a few weeks before i decide to overclock anyways. Its been in my experience that if a component does not fail in the first couple weeks then it will usually last through the warrenty period. Although, certain occurances do happen in which a warrenty would be nice to have.
 
They do support overclocking according to this. http://www.anandtech.com/video/showdoc.aspx?i=2619

Says they support up to 700mhz core and 800mhz memory speed for the x1800xt chipsets.

Edit: Upon further investigation it seems they only condone it for the other companies that sell ATI products. Such as MSI, Sapphire, Asus, Powercolor, ect.... Not to sure about the individual consumer.

Confirmed report of the 1.2ns memory and 6 MOSFETs Here.
 
I posted it in the other thread but here is an update:

Success on the X1800XL 512mb to X1800XT!!!
I recently unlocked 16pipes on a X800PRO to an X800XT and I remember seeing something about a modified flashrom used to clear the old bios of the entire configuration. I went to the article on techpowerup and noticed there was a hidden command "-newbios" if you are using atiflash.
I was using atiflash -f -p 0 newbios. This does not flash everything and the same for winflash.
To truly flash the card you need to use atiflash -newbios -f -p 0 newbios.bin. Instructions found here.
http://www.techpowerup.com/articles/overclocking/vidcard/34

After that I'm now able to install drivers using the ATI CC and the card is now a true X1800XT.
Time for some benching and I will report back in this same thready.
 
That is awesome. Can you post some temps along with the OC results? Thanx.

Also i read somewhere that you could get 2000mhz on the memory by lowering voltage to 1.8 . Not sure if this is a limited case or if it holds true for all. I remember hearing about a memory leak problem with the 1800xt's so less voltage may stop some of the memory leakage. Just a thought.
 
I'd say its a safe upgrade, due to the fact that DX10 wont be fully implimented for prolly another 2 years atleast. Possibly more if there are any more delays for Vista.
 
do you have to flash the bios to get the XT OCing...wonder what the real difference between XL and XT bios...

I know there a voltage differences but ATITool will allow to change these
 
Originally posted by: akshayt
7900GT>1800XL, how the hell do you compare them

I will rather spend those 50 odd bucks and get 7900GT
7800gt compares with X1800XL
why not take 256mb x1800xt
Click to expand...


Because he successfully flashed it to an X1800XT512 :roll:

Essentially he bought an X1800XT512 for 199.
 
Originally posted by: nealh
do you have to flash the bios to get the XT OCing...wonder what the real difference between XL and XT bios...

I know there a voltage differences but ATITool will allow to change these
Click to expand...

I think the main difference is the voltage throttling between 2d and 3d apps. I dont think the XL bios allows for this. Meaning if you overclock to 625/750mhz you will be running those speeds constantly. While the XT bios will run those speeds and clock back down when running a 2d application automatically. Also if you want to overclock past a certain range you need to flash it because ATI Tool doesnt go past a certain range i dont think. Not 100% sure about this as i dont have the card yet 🙁
 
the x1800xl is a x1800xt core but it uses slower RAM. the usual overclocks are about 650mhz core and 600-650mhz RAM which is 100mhz under the XT RAM speed. just thought u should know.
 
Originally posted by: morgash
the x1800xl is a x1800xt core but it uses slower RAM. the usual overclocks are about 650mhz core and 600-650mhz RAM which is 100mhz under the XT RAM speed. just thought u should know.
Click to expand...

This particular card has 1.2ns memory good up to 1600mhz. It is just an XT with an XL bios its been confirmed. There is a confirmation of a successful XT PE bios flash running 100% stable. That means this so called XL card is running at 700mhz core/800mhz memory.
 
I have a 7800gt overclocked at 550/1300. Do you guys think that I should pull the trigger on this one or wait a while and save up for the 1900xt?
 
Hard to say if its worth the upgrade really. If you are on a tight budget i would say yeah and sell your 7800gt to pay for it, but I am upgrading from onboard video so I certainly need the upgrade and dont want to wait 2 years for DX10. As far as an XT PE compared to x1900xt performance, I havent seen any benchmarks so its hard to say how much of a difference you will really see. If money is no object then by all means get the x1900xt, however this card is $200 cheaper.
 
Originally posted by: ItsAlive
Originally posted by: nealh
do you have to flash the bios to get the XT OCing...wonder what the real difference between XL and XT bios...

I know there a voltage differences but ATITool will allow to change these
Click to expand...

I think the main difference is the voltage throttling between 2d and 3d apps. I dont think the XL bios allows for this. Meaning if you overclock to 625/750mhz you will be running those speeds constantly. While the XT bios will run those speeds and clock back down when running a 2d application automatically. Also if you want to overclock past a certain range you need to flash it because ATI Tool doesnt go past a certain range i dont think. Not 100% sure about this as i dont have the card yet 🙁
Click to expand...

thanks..not sure 2D throttle matters....just small drop anyway..right

 
Originally posted by: nealh
Originally posted by: ItsAlive
Originally posted by: nealh
do you have to flash the bios to get the XT OCing...wonder what the real difference between XL and XT bios...

I know there a voltage differences but ATITool will allow to change these
Click to expand...

I think the main difference is the voltage throttling between 2d and 3d apps. I dont think the XL bios allows for this. Meaning if you overclock to 625/750mhz you will be running those speeds constantly. While the XT bios will run those speeds and clock back down when running a 2d application automatically. Also if you want to overclock past a certain range you need to flash it because ATI Tool doesnt go past a certain range i dont think. Not 100% sure about this as i dont have the card yet 🙁
Click to expand...

thanks..not sure 2D throttle matters....just small drop anyway..right
Click to expand...

I think its different depending on which bios you flash too and what clock speeds you wanna run. It was mainly implimented to reduce heat while not running a 3d app. If you were running the PE bios you would prolly see a good difference in heat produced as i believe the card would clock back down a good 100mhz core and 200mhz memory. I really dont think it would hurt anything to just bump up the voltage to stock XT and overclock tho.
 
Originally posted by: flashbacck
how are you arriving at your "2 yrs for DX10" prediction?
Click to expand...

It takes roughly 3 years for a game to be produced, atleast for anything good. Since Vista wont even be available till Jan. 2007. The games still being produced at this very moment are being created and tested with DX9. I dont see any games for DX10 hitting the market till roughly 2 years time from now. It is a very liberal estimation and that is considering no more delays for Vista. Lets say the games for DX10 already started being produced this year. It would still take a good 2 years to finish the game. Not to mention any bugs that will need to be worked out with it. Furthermore, if you were to buy a DX10 card now and wait till games are produced, there would be something faster out and your card may not be powerful enough to run them. This is my opinion and is to be taken at face value, nothing more.
 
Well I didn't get as much time as I wanted since I was also working on changing the headgasket on my car but I have one pending issue.
It appears I cannot get the memory clock at =>750MHZ. 725MHZ is good but not 750. The only reason I know this is with the bios I used it appears to have the 700/800 enabled in 3d. It started artifacting after a few minutes and I quickly exited. I later rulled it down to the memory.
I have not determined if this is a limitation of the bios (like try another XT bios), a hardware issue (not a steller card), or a physical mod to the card preventing this clock (IE I haven't tried 748, 749, 750).
So given the time restrictions I set it to 625/725. Needless to say I haven't given up.
However if I end up loosing 25 mhz on the memory (50 MHZ DDR) to save 100$, I would do it again in a heart beat🙂
 
Originally posted by: LordGestle
Well I didn't get as much time as I wanted since I was also working on changing the headgasket on my car but I have one pending issue.
It appears I cannot get the memory clock at =>750MHZ. 725MHZ is good but not 750. The only reason I know this is with the bios I used it appears to have the 700/800 enabled in 3d. It started artifacting after a few minutes and I quickly exited. I later rulled it down to the memory.
I have not determined if this is a limitation of the bios, a hardware issue (bum card), or the physical mod to the card preventing this clock (IE I haven't tried 748, 749, 750).
So given the time restrictions I set it to 625/725. Needless to say I haven't given up.
However if I end up loosing 25 mhz on the memory (50 MHZ DDR) to save 100$, I would do it again in a heart beat🙂
Click to expand...

Have you tried lowering voltage to the memory? You might wanna try that because of the memory leak issue. If i could remember the site i would post you a link from someone stating that the memory could hit 2000mhz with voltage to 1.8, but that was with water cooling as well.
 
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