ok thanks.
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ok thanks.
Ok ... now I have reached as far as I dare push .. stock cooler still:
http://homepage.ntlworld.com/bartfla...mages/ooo2.jpg
damn. That is 100% stable and artifact free?
Nice OC :toast:Quote:
Originally Posted by Bartflaster
I can't believe u got those clocks only with that little volt. I had to bumb mine up more. :clap:
Cheers, yes artifact free as far as I could see, stable enough to do 2 runs at 05, but I didnt want to tempt fate so its back to stock ATM
the memory is pretty near max I think .. even 2v couldn't give me 565, and the core locked @ 675 2.25v, didnt want to push harder v on the stock cooler.
Basically it looks like I could run this 600/1400 24/7 with headroom, which I will be pleased about if thats the case, just need the new ATi tool so I can do a couple of hours artifact testing, and set clocks to boot if all is well ... or even a bios mod and flash once 24/7 stability speeds are decided ;)
Just after I decided to stop, the Zalman Cooler arrived:
Before:
http://homepage.ntlworld.com/bartfla...ages/x18b4.jpg
A quick look at the core info:
http://homepage.ntlworld.com/bartfla...mages/core.jpg
The stock HSF has 2mm thick thermal pads on the ram, that can't help matters.
thankfully the Zalman ramsinks have a very thin pad.
And the Zalman fitted:
http://homepage.ntlworld.com/bartfla...s/x18after.jpg
And finally, In situ:
http://homepage.ntlworld.com/bartfla...es/x18situ.jpg
Idle temp has gone down 7-8 deg, and load temp (running RTHDRBL) down 13 deg, even clocking it to 575/550 temps didnt exceed 60 .. they hit 70 @ stock with the same test. :D
And obviously nice and quiet now :)
sweet. :D
now OC that bad boy...again!
@Bartflaster
This just confirms it! All XL's thus far are exactly the same. Even core number are the same. These XLs are really awesome. Once u oc them they even better than a 7800GTX :p:
Nice cooler, but im waiting for the artic cooler :D
My temps don't go over 70 even when OCing to the sam speeds as yours. BUT, i am running the cooler 2 max revs and it makes alot of noise :slapass:
Congrats on the card.
did any modding have to be done to that zalman cooler to make it fit? Any cutting of fins etc or was it a no problem transplant? Can you hear the fan when on full?
Does the fan on the zalman attach to the power connector on the card itself or run from a header on the mobo? Excuse my ignorance just planning ahead here myself. Thanks.
Yep stock cooler fan kicked to full speed @ 70 and dropped the temp to around 68 running RTHDRBL, Zalman was running around 57.Quote:
Originally Posted by mR Yellow
TBH I dont think the AC are going to be as good as the Zalman ... It cools the whole area pretty well.
Bolts straight on :)Quote:
Originally Posted by cantankerous
From a molex with the supplied adaptor ... you get 4 plugs 2 for 5v 2 for 12v, I stuck it on 12v and put a fanmate in line, though I dont need it I discovered as its on full and I cant hear it over the CPU Zalman cooler @ 2300 rpm.Quote:
Originally Posted by cantankerous
That appears to be the same date I have 0536aay. I can get the memory to 621 with core at 654. I think we got the ones with weaker mem controllers, But still nice overclocks. I also installed a zalman and it helps with the temps, but thats all.Quote:
Originally Posted by Bartflaster
so i guess lower temps dont yield a greater oc?
I have not tried raising the core yet. I have been concentrating on the memory, but I will give up on that(for now) and see just how high I can get the core. Any Ideas on the max I should raise the vcore? 1.5? 1.6? 2.2 :stick:Quote:
Originally Posted by cantankerous
I think XT's are 1.3v .. so anything over on air maybe risky.
I have had 750 on mem and benched with no visible artifacts, but it hasn't got a lot more room ... I haven't tried since the zalman has been on though.
I got to 650 core with 1.2v ... 675 locked up on bench, but I hadn't pushed 1.3v yet.
As the temp readout in CCC breaks as soon as you use the overclock tool I don't want to try over 1.2v until I can monitor the temp.
TBH my reason for the Zalman was for quietness .. the fact it lowers temps a good amount is a bonus too :)
I have found if you close the overclock tool, the temps will read correctly again, and the overclock stays.Quote:
Originally Posted by Bartflaster
Cool. Good to know.Quote:
Originally Posted by Nunyabiz
Yup .. good call :)
Still looks like no go @ 700 1.3v for me.
675@1.3 v was turning in 72 deg on rtdrbl thingie.
that wasn't stable on 1.225, so I think we are at ceiling for this card on air.
I think I might have a little more to come from the ram now it is cooled better though.
*EDIT*
Nope 775 is right about the limit for the mem .. just beginning to get artifacts visible at that speed.
Core tops out around 675 @ 1.3v ... I tend to like round numbers so I go up/down in 25 mhz jumps :p:
Happy with that TBH .. means a 625 @ 1.2v and 700 @ 1.95v should be a stable setting with some headroom.
From what I am gathering the gpus are quite hearty and can gain a nice oc from stock and most are the same. Not all cores are ever going to be identical however within a slight margin of difference in voltage either +/- you are able to get the same speed as your neighbour. The memory on the other hand seems to be a big difference between cards. Some getting as much as 700+ while others barely reach late 500 to early 600. Strange as well as it was suppose to be the cores that were flawed, not the memory. The ram on the card is good for 700mhz I think if you get less it is because of a weakened memory controller on the card and not the ram itself. Either way there is nothing you can do about that. Perhaps it was the memory controller that had issues in ATI's little manufacturing flaw.
if watercooled you could probably boost it at least 10% more without risking anything...Quote:
Originally Posted by Bartflaster
Some notes:
Left fan unplugged for 20 mintues, message on screen the card was overheating and did not crash and no visible anomolies. I was not in 3D at all durring this time.
Both of my cards could reach insane speeds on ram.
Flashing XT bios did not help overclock at all, XL best with XL bios.
Mosfets get very hot, be sure to pay attention when overclocking.
Insanly durable cards, not completely impervious to moisture but I no harm caused by excessive condensation during operation. I had to shut down to scrambles but card was ok after dry out.
Quote:
Originally Posted by FUGGER
Are yours retail or review samples? I cannot even hit the rated speed for the ram. :(
Mine are retail box off the shelf at Fry's
See told ya guys. :p:
Quote:
Originally Posted by mR Yellow
I'm just really surprised. If these cores are typically doing 625 at less than 1.3v what was the problem and why the new metal layer? Why the delay on the XT considering pretty much all of us are doing that with our XLs with normal air cooling.Quote:
Originally Posted by Grayskull
Yeah, since they can all run so great, why not sell them clocked higher? Maybe have the XL win some more benchmarks vs. the GT(X). Also, is hte 1800MHz on the mem for the XL that Fugger's been getting normal??? Or is he getting very lucky with the one's he's picking off the shelves?