AMD Radeon HD 2900 XT overclocking results

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05-05-2007, 10:29 AM
deathman20

Quote:

Originally Posted by Dynasty

Here is link to an unknown card in 3D mark > 03/05/06....
Geez, I wonder what this card could be.

http://www.nordichardware.com/forum/...=8428&forum=45

Wow, ok totally sold. Now just need to think on extra cooling for it and a new case suited better for water cooling probably.
05-05-2007, 03:05 PM
nicepun

Now why did they run 3DMark06 with res @ 1280x1024??
05-05-2007, 03:07 PM
deathman20

Quote:

Originally Posted by nicepun

Now why did they run 3DMark06 with res @ 1280x1024??

Um because thats default.
05-05-2007, 03:10 PM
nicepun

Quote:

Originally Posted by deathman20

Um because thats default.

Oooops...:slap: :slapass:
05-05-2007, 03:48 PM
SoF

uh can't wait for the benches to be unleashed :D this will be fun for sure (and is about time ;) )
05-05-2007, 05:18 PM
Eastcoasthandle

Quote:

Originally Posted by Kinc

Yeah. For every overclocker this card will be a wet dream :D For me its always nice to know that there is much headroom by just removing more heat.

Those who like to build with watercooling will find the perf. gain from building with a high end watercooling system very pleasing.

Can a person use their existing GPU WB? Lets say a Maze4??
05-05-2007, 05:26 PM
GLENBOY

Quote:

Originally Posted by Eastcoasthandle

Can a person use their existing GPU WB? Lets say a Maze4??

hi there the mounting holes accordingly are the same as on the x1900 cards so it should be fine its only the full cover waterblocks which cover the ram etc which may be a problem with these new cards as the pcb is different but the maze 4 which just covers the core should be fine
05-05-2007, 05:36 PM
Daveb2012

Quote:

Originally Posted by Dynasty

Here is link to an unknown card in 3D mark > 03/05/06....
Geez, I wonder what this card could be.

http://www.nordichardware.com/forum/...=8428&forum=45

Kinc Also has an 8800 Ultra, how do we know its not that?
05-05-2007, 06:04 PM
dragonhunter

Quote:

Originally Posted by Daveb2012

Kinc Also has an 8800 Ultra, how do we know its not that?

Then he would said it's an Ultra, maybe DNA stop him from saying what the card is? I wonder too
05-05-2007, 08:43 PM
perkam

Quote:

Originally Posted by dragonhunter

Then he would said it's an Ultra, maybe DNA stop him from saying what the card is? I wonder too

Yes those DNA Agreements (Don't Notice Agreements) are pesky arent they...

XD

Perkam
05-05-2007, 11:01 PM
largon

How does Hynix 1.0ns GDDR3 overclock?
Funny that retail XTs (9.5") have 1.0ns Hynix chips but OEMs (8.5") get 0.9ns Samsung.
05-06-2007, 12:41 AM
Sampsa

Quote:

Originally Posted by Eastcoasthandle

Can a person use their existing GPU WB? Lets say a Maze4??

shim around the GPU is little bit higher than GPU so you might have to remove it when using your own cooling solution..

Quote:

Originally Posted by largon

but OEMs (8.5") get 0.9ns Samsung.

There won't be such a card released atleast yet so no need to speculate which memory it uses
05-06-2007, 12:59 AM
Parcher

Subscribed :toast:
05-06-2007, 01:31 AM
VictorWang

someone can tell me 3Dmark05 score of 8800gtx sli ?
with a 4.6G x6800 , ram @ 1100 4445-2T loosen timings.
no tweaked OS/driver, no LOD.
everything by deafult.
05-06-2007, 01:54 AM
K404

Hey Victor...maybe around 24-24.5K ishhh?
05-06-2007, 02:26 AM
zbogorgon

its more, 25.5
05-06-2007, 02:59 AM
VictorWang

:D maybe ATI will win in 01/05 ag. @.@
05-06-2007, 03:13 AM
zbogorgon

those are more or less CPU limited benchmarks, it all depends on system sufering performance due to SLI/CF
05-06-2007, 03:24 AM
K404

Quote:

Originally Posted by zbogorgon

its more, 25.5

GARGH I forgot about the new drivers...the scores I checked to estimate a score were using the old ones
05-06-2007, 07:47 AM
largon

1 Attachment(s)

Quote:

Originally Posted by Sampsa

Quote:

Originally Posted by largon

OEMs (8.5") get 0.9ns Samsung.

There won't be such a card released atleast yet so no need to speculate which memory it uses

See attachment.
05-06-2007, 09:20 AM
blind_ripper

say any one can tell me if there suffering from coldbug ? :p:
05-06-2007, 12:29 PM
Free Gordon

so, Daily tech R600, probably was a fireGL? :D
05-06-2007, 01:58 PM
Free Gordon

they tested with old driver?
05-06-2007, 05:38 PM
Miwo

I know everyone is excited over the top end products, but has anyone gotten a hold of any solid info/benches on the RV630? I am curious to know how the lower end parts fare with overclocking? I am hoping its not another overheating Digital VRM fiasco, aka x1950pro. Being a 65nm part, it should be easy to cool with a decent air setup I would imagine.
05-07-2007, 06:56 AM
kemist

Quote:

Originally Posted by Brent_Justice [H

Video Card Managing Editor]
All I'm gonna say is, 3dmark scores mean jack in relation to real gaming performance that I am experiencing.

Just wondering if anyone with this card can say whether this statement is true or not, for better or worse?
05-07-2007, 06:59 AM
BenchZowner

Quote:

Originally Posted by kemist

Just wondering if anyone with this card can say whether this statement is true or not, for better or worse?

3D Mark03/05/06 numbers cannot reflect real gaming performance in ALL CASES.

But...these comments from who ? HardOCP ? huh, sounds like fun ( ooh, and reminds us of the old funny days with hOCP vs FutureMark :D ) [ and some more... now let me stop :D ]
05-07-2007, 07:05 AM
kemist

Quote:

Originally Posted by BenchZowner

3D Mark03/05/06 numbers cannot reflect real gaming performance in ALL CASES.

But...these comments from who ? HardOCP ? huh, sounds like fun ( ooh, and reminds us of the old funny days with hOCP vs FutureMark :D ) [ and some more... now let me stop :D ]

Haha yea i know, but the [H] is considered fairly reputable, (though im not buying into anything until i see benches from everyone) just wondering if these dont perform as well as they might seem they would in real life gaming, especially at high res, high AA/AF.
05-08-2007, 04:52 PM
onethreehill

2900XT 3DMark06 number
http://forums.vr-zone.com/showpost.p...1&postcount=14
05-08-2007, 09:00 PM
theteamaqua

Quote:

Originally Posted by onethreehill

2900XT 3DMark06 number
http://forums.vr-zone.com/showpost.p...1&postcount=14

finally some numbers
05-09-2007, 12:18 AM
tuanming

Is 3DMark06 score result use a single or dual HD2900XT?
05-09-2007, 12:22 AM
Bootup05

So the roumors of this card being a flop aren't true?

I take it thats a single card setup?

Anyone know what drivers they were using, because 2000 above an OCed 88GTX is good in my eyes:)
05-09-2007, 01:27 AM
MichelinGuy

I think the best advantage that the HD2900XT has is the fact that ATI has connections with Microsoft so it can make better Dx10 drivers than Nvidia. These numbers are pretty sweet indeed but if you buy this card, you probably buy it for it's Dx10 function. So i want to see some hard Dx10 numbers before i'm convinced :para:
05-09-2007, 02:12 AM
albertwesker

Quote:

Originally Posted by Bootup05

So the roumors of this card being a flop aren't true?

I take it thats a single card setup?

Anyone know what drivers they were using, because 2000 above an OCed 88GTX is good in my eyes:)

an OC 8800 GTX does also 16k with a quad core ~ 4GHz
05-09-2007, 03:21 AM
Kinc

I just confirmed no coldbug down to atleast -90C evap (post without problems).
05-09-2007, 03:22 AM
zbogorgon

Quote:

Originally Posted by Kinc

I just confirmed no coldbug down to atleast -90C evap (posts without problems).

wonderfull
05-09-2007, 03:27 AM
GLENBOY

Quote:

Originally Posted by Kinc

I just confirmed no coldbug down to atleast -90C evap (posts without problems).

hi kinc is the shim around the gpu higher that that on the x1900 cards i have watercooled gpu only blocks which are the polarflo ones and they have fitted 7900gtx and the pair of x1900s perfectly i had, the shim on the pics on the hd2900 does not look any higher that that on the x1900 can you confirm

thanks

Glen
05-09-2007, 03:37 AM
Kinc

Quote:

Originally Posted by GLENBOY

hi kinc is the shim around the gpu higher that that on the x1900 cards i have watercooled gpu only blocks which are the polarflo ones and they have fitted 7900gtx and the pair of x1900s perfectly i had, the shim on the pics on the hd2900 does not look any higher that that on the x1900 can you confirm

thanks

Glen

Yes it is slightly higher then the core. Im using a 1mm copper coldplate wich I fit over the die.
05-09-2007, 03:44 AM
GLENBOY

Quote:

Originally Posted by Kinc

Yes it is slightly higher then the core. Im using a 1mm copper coldplate wich I fit over the die.

thanks kinc appreciated
05-09-2007, 05:00 AM
Lane-k

Quote:

Originally Posted by Kinc

I just confirmed no coldbug down to atleast -90C evap (post without problems).

Wow, nice news :D
05-09-2007, 06:15 AM
blind_ripper

Quote:

Originally Posted by Kinc

I just confirmed no coldbug down to atleast -90C evap (post without problems).

this is what im waiting for , hope its not again like X1950 and X1900 serie that its random :slapass:
05-09-2007, 07:41 AM
pumbertot

i find the scores a bit disappointing(but good at the same time), was hoping ATI could have pushed the envelope just a bit further. this is competing with GTX, but not really exceeding it perhaps maybe by a little bit. still its good news with the price of these(after gouging), should force Nvidia to lower theres. now maybe I can start to dream of next gen cards being released at a lower price than last time around..........yeah im sure its just a dream.

edit: Oh and nice clocks there Denny and thanks for sharing. you always get your hands on some good stuff. ;)
05-09-2007, 08:16 AM
zert

Subscribed :D

Sampsa or Kinc, you dont happen to have an Radeon HD2600XT lying around to play with?
05-09-2007, 08:33 AM
Sampsa

Quote:

Originally Posted by zert

Subscribed :D

Sampsa or Kinc, you dont happen to have an Radeon HD2600XT lying around to play with?

Not in a while..
05-09-2007, 08:43 AM
Bounc3y

Quote:

Originally Posted by Kinc

Yes it is slightly higher then the core. Im using a 1mm copper coldplate wich I fit over the die.

sorry to bother u kinc.. so either u remove the shim or u put something in between the die to raise it? i'm currently using a MCW60 and i'm planning to upgrade my x1900xt with this.. just hope it fits =/

edit : and subscribed :D
05-09-2007, 10:32 AM
Sir Random

Subscribed.

Roll on Monday! After all the anti-climaxes, let's hope there's something to get excited about :)
05-09-2007, 11:12 AM
Bartflaster

Hmm maybe not Sir random :(

Guys with the 2900XT, can you disclose if the gaming figures posted here are similar to your experiences ?
http://it-review.net/index.php?optio...=1314&Itemid=1
05-09-2007, 11:22 AM
jas420221

Quote:

Originally Posted by Bartflaster

Hmm maybe not Sir random :(

Guys with the 2900XT, can you disclose if the gaming figures posted here are similar to your experiences ?
http://it-review.net/index.php?optio...=1314&Itemid=1

Holy christ..

They cant post ANYTHING UNTIL 5/14!!!!!! :nono: :fact:

Quote:

Originally Posted by ahmad

Obviously question #1 is which drivers were used. Second thing is, they show both AM2 and Conroe hardware in the system specs, and a few motherboards. This is a huge flaw because if they ran the ATI tests on the AMD platform, we all know its gonna be worse than if it was run on the Intel setup.

And 3rd and most important thing is: show me stock 3dmark numbers. They don't mean much to me, but I use them as a reference when looking at results.

This review tells me nothing besides the fact that the author wasted his time and ours...

EDIT: I am referring to this: http://it-review.net/index.php?optio...=1314&Itemid=1
05-09-2007, 11:30 AM
Bartflaster

Yes, I can't see the driver used, those results were on AMD system seems they are doing different platforms on different days and today is the X64-6000 I believe.
If they didn't sign an NDA I guess they dont have to wait ??
Stock bench numbers aren't a problem, this forum will show you those :)
05-09-2007, 08:08 PM
Victorshen

Initial samples of R600 do have Inter-Layer Dielectric (ILD) implemented. (http://www.semiconductorglossary.com...erm=dielectric)

in short, it is a tech that enables transistors to work under xtreme conditions, the con of this technique is that it will increase power consumption a lot~!

however, it is also said that the mass production version by TSMC does not feature this technique. so just wondering how is the overclocking headroom for retail R2900XT as compared to these samples sent to media, lol.
05-09-2007, 08:23 PM
dinos22

very interesting victor

it will be good to see LN2 on these heheh :D
05-10-2007, 04:56 AM
LowRun

Quote:

Originally Posted by Victorshen

Initial samples of R600 do have Inter-Layer Dielectric (ILD) implemented. (http://www.semiconductorglossary.com...erm=dielectric)

in short, it is a tech that enables transistors to work under xtreme conditions, the con of this technique is that it will increase power consumption a lot~!

however, it is also said that the mass production version by TSMC does not feature this technique. so just wondering how is the overclocking headroom for retail R2900XT as compared to these samples sent to media, lol.

We definitely need to wait for retail samples reviews from XS members to get the whole picture, who's gonna bite the bullet first, i will let the dust settle before i jump on the bandwagon. And thanks for the info Victorshen.
05-10-2007, 04:58 AM
onethreehill

Quick test on new ATI new GC
http://forums.hardwarezone.com/showthread.php?t=1607936
05-10-2007, 05:34 AM
Parcher

3DMark and' insufficient by now it needs to see under the games to parity,' of bases as they involve the two cards.... he/she asks her and' how come you/they don't make to ever see a test under the same game, since do these seem truthful?? You excuse the possible erred translation...

P.(Italy):slap:
05-10-2007, 05:42 AM
King_Of_Pilots

Quote:

Originally Posted by Parcher

3DMark and' insufficient by now it needs to see under the games to parity,' of bases as they involve the two cards.... he/she asks her and' how come you/they don't make to ever see a test under the same game, since do these seem truthful?? You excuse the possible erred translation...

P.(Italy):slap:

Se mi dici quello che volevi dire te lo traduco!:D anche perche' non ho capito neanche io quello che dicevi!:)

I told him i'd be pleased to help him translating what he wanna say! :)
05-10-2007, 05:50 AM
MakenValborg

Quote:

Originally Posted by Parcher

3DMark and' insufficient by now it needs to see under the games to parity,' of bases as they involve the two cards.... he/she asks her and' how come you/they don't make to ever see a test under the same game, since do these seem truthful?? You excuse the possible erred translation...

P.(Italy):slap:

:eek: :)

Quote:

Originally Posted by King_Of_Pilots

Se mi dici quello che volevi dire te lo traduco!:D anche perche' non ho capito neanche io quello che dicevi!:)

I told him i'd be pleased to help him translating what he wanna say! :)

se non ci fossimo noi italiani :D

sarebbe propio una noia mortale :banana:
05-10-2007, 05:52 AM
King_Of_Pilots

Quote:

Originally Posted by MakenValborg

:eek: :)

se non ci fossimo noi italiani :D

sarebbe propio una noia mortale :banana:

Io dico che siamo coloro che danno allegria al mondO!:woot: :banana: :banana: :banana: :banana: :banana: :banana: :banana: :banana: :woot:
05-10-2007, 05:57 AM
Parcher

Quote:

Originally Posted by King_Of_Pilots

Se mi dici quello che volevi dire te lo traduco!:D anche perche' non ho capito neanche io quello che dicevi!:)

I told him i'd be pleased to help him translating what he wanna say! :)

il 3DMark e' insufficiente dopo la storia dell' AA che perderebbe gia a 3x il 15% delle prestazioni, bisognerebbe vedere sotto lo stesso gioco a parità' di piattaforma e di impostazioni, come si comportano le due schede....
La domanda e' :come mai chi ha la scheda non fa mai vedere questo confronto almeno su un gioco ???

saluti
P.:toast:
05-10-2007, 06:36 AM
eXceeded

^^ ARGH :O, I don't speak Italian!!!
05-10-2007, 06:43 AM
King_Of_Pilots

Quote:

Originally Posted by Parcher

il 3DMark e' insufficiente dopo la storia dell' AA che perderebbe gia a 3x il 15% delle prestazioni, bisognerebbe vedere sotto lo stesso gioco a parità' di piattaforma e di impostazioni, come si comportano le due schede....
La domanda e' :come mai chi ha la scheda non fa mai vedere questo confronto almeno su un gioco ???

saluti
P.:toast:

3d mark is not enough because of the fact that the AA will make a loss of 15% overall performance, it is needed also to bench the same game with same platform and settings, to analyze how the two cards bench...
The question is: why who has this ''uknown'' card never shows this kind of camparizon between GPUs in one or more games?

That's how'd i translate it! Fear not non-italian-speaking users!:D
05-10-2007, 06:47 AM
MakenValborg

Quote:

Originally Posted by eXceededgoku

^^ ARGH :O, I don't speak Italian!!!

mhhh... it's hard to explain.. because I haven't get it at all...
aniway he was asking why they use only 3dmark for the test.

A game test between 8800 gts and 2900 XT ( whit anti-alias and filters) will be more realistic.

I hope you understand :stick:
05-10-2007, 07:03 PM
onethreehill

Quote:

Originally Posted by onethreehill

Quick test on new ATI new GC
http://forums.hardwarezone.com/showthread.php?t=1607936

Quote:

ok dokey. upon request by many.......

compare the 8800GTS 640Mb from Leadtek as comparison.......

http://forums.hardwarezone.com/showp...9&postcount=33
05-12-2007, 07:07 AM
Radeon

it's on the shelves here in malaysia
about lets see about usd 500
05-12-2007, 08:54 AM
Noobie

Quote:

Originally Posted by King_Of_Pilots

3d mark is not enough because of the fact that the AA will make a loss of 15% overall performance, it is needed also to bench the same game with same platform and settings, to analyze how the two cards bench...
The question is: why who has this ''uknown'' card never shows this kind of camparizon between GPUs in one or more games?

That's how'd i translate it! Fear not non-italian-speaking users!:D

We need to see all AA/AF options benched with different games and screenshots to compare quality! Give us all the data available and we'll make our own article! We just need the data!
05-13-2007, 09:53 PM
ChaosMinionX

Anything new?:toast:
05-14-2007, 12:15 AM
Sampsa

X6800 @ 2,93 GHz, Asus P5W-DH Deluxe and Radeon HD 2900 XT with default cooler:

http://www.io-media.fi/sampsa/hd2900xt/oc_01.jpg

http://www.io-media.fi/sampsa/hd2900xt/oc.png

http://www.io-media.fi/sampsa/hd2900...rk06_11676.png

3DMark06 stable 855/1030 MHz.

Next I'll switch to QX6700 and DFI's RD600 motherbard and DI is coming on Thursday.
05-14-2007, 02:06 AM
blossa

It will be interesting to see max result on air cooling. Also, if understand it correctly the GPU gets rather hot? I wonder how DI can handle that...

Thanks for sharing! :toast:
05-14-2007, 02:09 AM
Sampsa

Quote:

Originally Posted by blossa

It will be interesting to see max result on air cooling. Also, if understand it correctly the GPU gets rather hot? I wonder how DI can handle that...

Thanks for sharing! :toast:

After DI there will be LN2 :)
05-14-2007, 02:16 AM
maxxxpct

first run LN2 no mods

dfi p965 s dark- ocz fleex 1200 -jetway hd 2900xt -x6800

http://download.pctuner.net/upload/r...4546_28790.jpg
05-14-2007, 02:24 AM
aMp

Dammit, I just wanna see what's possible for 24/7 on decent water, including power figures.
05-14-2007, 03:04 AM
blossa

Quote:

Originally Posted by Sampsa

After DI there will be LN2 :)

That sounds fun! :D Let's hope that goes better than it did in the hockey for finland and sweden...
05-14-2007, 03:16 AM
jas420221

Soooo now that the NDA is lifted, where is all the information?
05-14-2007, 04:56 AM
Afterburner

Quote:

Originally Posted by aMp

Dammit, I just wanna see what's possible for 24/7 on decent water, including power figures.

Agreed...... :D
05-19-2007, 04:10 AM
Sampsa

Here we go, unfortunately this Thursday was public holiday here in Finland so I'll get dry ice next week:

http://plaza.fi/s/f/editor/images/0519_r600_dia1.png

According to AMD's document R600's recommended maximum operating temperature is 105 Celsius and 125 C is the absolute maximum. Beyond this ASIC will be damaged.

http://plaza.fi/s/f/editor/images/X-...9142802406.jpg

R600 XT GPU TDP is 160 watts and each memory chip two watts = total board TDP 225 watts

http://plaza.fi/s/f/editor/images/0519_r600_oc1.jpg

Shim is little bit higher than GPU itself so a friend of mine made 1 mm copper cold plate for better contact. Unfortunately shim is glued very tight around the R600 and very hard to remove with razor blade. G80's heat spreader is very nice feature when installing container.

http://plaza.fi/s/f/editor/images/0519_r600_oc2.jpg

Here is my aluminum solid container installed on Radeon HD 2900 XT. I modified heatsink from Radeon X1800 XT to PWM components.

http://plaza.fi/s/f/editor/images/0519_r600_oc3.jpg

Graphics card installed to test setup: QX6700, DFI RD600, pair of Corsair XMS6400-C3 and Enermax Galaxy 850 W.

Tests next week :toast:
05-19-2007, 05:15 AM
LowRun

Seems like you're gonna have fun, looking forward for your results.
05-19-2007, 07:28 AM
Xion X2

Sampsa--This may be a rather mundane question...

When using that copper coldplate, do you apply thermal material inbetween both contact areas of your block(s) or just inbetween the GPU/coldplate?

And for those of us who aren't machinists, where could we pick up a 1mm piece of copper like that? Lowe's or Home Depot, possibly? Does anyone know the exact specifications of the shim area?
05-19-2007, 02:02 PM
Fr3ak

Nice setup Sampsa! :D

Cant wait for DI benches :)

Subscribed.
05-19-2007, 02:05 PM
mascaras

heheh sampsa now we´r talking , DI :yepp: :D

waiting for results

regards
05-19-2007, 11:34 PM
ColonelCain

Argh... I really want to see some more water results. Ive only seen one in the water cooling section.
05-21-2007, 08:32 AM
cadaveca

Hey Sampsa...AMD GPUTool works for overclocking both cards at once...simple set speed for slave card first, gpu first, apply speed, then mem, apply speed, and then do the same for primary card.

second card no overclock:

15665:
http://service.futuremark.com/compare?3dm06=1994728

to clocking second card: 15895:
http://service.futuremark.com/compare?3dm06=2007645
05-21-2007, 08:42 AM
Kinc

You are runing different drivers. That should be why there is a difference in the perf.
05-21-2007, 08:47 AM
cadaveca

Um, no, i watched the scores rise until I reached the max of teh card to confirm. It started @ 15553, and went up a wee bit each time i raised clocks on the slave card(25mhz each time). Used driver from teh sappire isntall cd, updated to the driver from the site, and gave it a go.

Overdrive was unlocked and set to maximin speeds, AMDGPUTool overrided these settings, confirmed by running with tool closed, and then with tool open @ lower speeds, and the difference in score.

Tried it again this morning, ot confirm i jsut didn't drink too much last night :lol2:, and it still works.;)

Give it a go...works here..feel free to come over and see for yourself lol but I DID copy the wrong link nice catch Kinc.:rofl:

Here's the start bench:
http://service.futuremark.com/compare?3dm06=2003751
05-21-2007, 09:06 AM
Kinc

Did you maintan the same clocks on the master at all time becuase from what I have seen overclocking the master is all that "sticks".
05-21-2007, 09:32 AM
SoF

really looking forward for the DI results sampsa :toast:
05-21-2007, 04:22 PM
cadaveca

Quote:

Originally Posted by Kinc

Did you maintan the same clocks on the master at all time becuase from what I have seen overclocking the master is all that "sticks".

Yep. same speed, verified it each time before the run using CCC. was weird to see teh mex available in CCC change when doing this, but whateva.:D

N-E way, the 155xx was one stock, 156xx i one overclcoked, 158xx is two. I have links of same approximate scores using all the same driver, not too sure what is going on...:stick:

SM2.0 score high on one, not the other, same for SM3.0...it's not consistent, I'll say that much!
05-21-2007, 05:34 PM
Daveb2012

I'm looking through the list of certified PSU's:
http://ati.amd.com/products/certifie...ies.html#pstop

I'm wondering do you need at least one 2x4pin connector to over clock these?
My OCZ 700w is on the list but I don't have that native 8pin connector. do I need some thing from that list that has just 1 2x4 pin?? Is there any particular PSU recommended for over clocking these cards? With out over kill?

This is one PSU i was considering: http://www.newegg.com/Product/Produc...82E16817256017
Would this be enough power??
05-21-2007, 06:11 PM
dragonhunter

I am running HD2900XT in crossfire with Silverstone 750W no problem here
05-21-2007, 06:16 PM
Dynasty

Quote:

Originally Posted by dragonhunter

I am running HD2900XT in crossfire with Silverstone 750W no problem here

I have use the following psu's in crossfire with overclocks on my
cards up to 875/1000 no issues either.

2 x Ocz PowerStreams 600w
1 SilverStone OP 850W
1 SilverStone OP1000W

With quad core my OP1000 just runs solid with both cards and QX...
05-21-2007, 06:33 PM
mdebrito

Sampsa can you tell me the size of the Shim, 1mm 3/3cm ?

it would realy help to get it ready before the card arives here in brazil :)
05-22-2007, 12:03 AM
Daveb2012

Quote:

Originally Posted by dragonhunter

I am running HD2900XT in crossfire with Silverstone 750W no problem here

Crossfire.. Hmm I wonder if there is any thing less this $190 cpu that would do the job better..
05-22-2007, 06:13 AM
VictorWang

enermax ddx1000w uncompatiable with DFI board using digi pwm
05-22-2007, 07:12 AM
cadaveca

Which one? using that same psu on RD600 right now w/ 2 x R600...just don't plug in the floppy connectors!
05-22-2007, 07:48 AM
Cooper

Quote:

Originally Posted by Daveb2012

I'm looking through the list of certified PSU's:
http://ati.amd.com/products/certifie...ies.html#pstop

I'm wondering do you need at least one 2x4pin connector to over clock these?
My OCZ 700w is on the list but I don't have that native 8pin connector. do I need some thing from that list that has just 1 2x4 pin?? Is there any particular PSU recommended for over clocking these cards? With out over kill?

This is one PSU i was considering: http://www.newegg.com/Product/Produc...82E16817256017
Would this be enough power??

You need 2x4pin pci-e power connector or adapter to use Ovedrive or to run two cards in CrossFire.

Quote:

Originally Posted by Dynasty

I have use the following psu's in crossfire with overclocks on my
cards up to 875/1000 no issues either.

2 x Ocz PowerStreams 600w
1 SilverStone OP 850W
1 SilverStone OP1000W

With quad core my OP1000 just runs solid with both cards and QX...

I remember this one had problems running two X1900XT in XF :confused:
05-22-2007, 08:03 AM
jabski

to run 2 x psu would you just use a relay ?
05-22-2007, 10:08 AM
DilTech

Quote:

Originally Posted by Cooper

You need 2x4pin pci-e power connector or adapter to use Ovedrive or to run two cards in CrossFire.

I remember this one had problems running two X1900XT in XF :confused:

He's running 2 powerstreams.
05-22-2007, 01:34 PM
Cooper

Quote:

Originally Posted by DilTech

He's running 2 powerstreams.

OK :D
05-22-2007, 02:28 PM
LowRun

Maybe we could see some unigine results, i have no idea if this bench is worth it as i just discovered it and never used it myself. It can test DX9 and OpenGL but not DX10 tho'. Visually this is nothing special i could see as they have a 51 Mb video, the app is 26 Mb and it's all there: http://unigine.com/download/
Download was fast too.
05-22-2007, 03:06 PM
dragonhunter

Quote:

Originally Posted by cadaveca

Which one? using that same psu on RD600 right now w/ 2 x R600...just don't plug in the floppy connectors!

Crossfire HD2900Xt + Conroe @ 4ghz + Floppy Drive + DVD RW Drive + 6 fans + lights + ChillControl + X-FI and 3x 74GB Raptors in Raid 0. Game all day with this Silverstone 750W :shrug:
05-22-2007, 03:15 PM
cadaveca

issue is that the floppy connectors are on rail 5, while other mobo power is rail 1/2. This creates a "short" in psu, adn the system will not start, and PSU will beep at you.

So, you either get some molex/floppy adapters, and use the 2nd 8-pin cable w/molex adapter, or you do not connect them @ all.(not connected here, works a treat: http://service.futuremark.com/compare?3dm06=2017986)

Silverstone works because of rail config. You might be pushing it with a second card, but i doubt it.

First 8-pin pci-e connector is rail 1/2 as is cpu, and second 8-pin pci-e is 1/2/3, so you end up with a high load on those rails. thankfully 24a on each is jsut about sufficient, but I have noticed lower clocks on my quad after adding teh second card.

My cpu is power hungry tho...1.25v all the way to 3.2ghz, but darn it all if vdroop ain't .09v!!!
05-23-2007, 12:40 AM
jabski

so do you think a PC P&C 750 silencer would handle 2x hd2900 + qx6700 ??
05-23-2007, 12:42 AM
gunit

Quote:

Originally Posted by jabski

so do you think a PC P&C 750 silencer would handle 2x hd2900 + qx6700 ??

yes, its also listed on AMD site of certified PSU. and hopefully you will get newer version with 2 6pin AND 2 8pin pci-e connectors. mine is on its way although NO one could confirm for me if it was the newer version.:rolleyes:

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