Enermax Liberty 620W, Can't hold 2 x X1800XT ?

[krampak]

I've just mounted my CrossFire system with a pair of X1800XT (one of them Master) and my system is freezing when loading windows...

Will it be a PSU issue ? Or should I find another anwer ?

It's suposed to be CrossFire certified: http://mirror.ati.com/technology/crossfire/buildyourown2.html

[davidhammock200]

I've just mounted my CrossFire system with a pair of X1800XT (one of them Master) and my system is freezing when loading windows...

Will it be a PSU issue ? Or should I find another anwer ?

It's suposed to be CrossFire certified: http://mirror.ati.com/technology/crossfire/buildyourown2.htmlAs the GPU's don't pull much amperage during boot, I suspect a driver problem.

[dBTelos]

I doubt the problem is PSU related.

1) Not much load is put on the PSU during boot
2) You said freeze, not reboot or shutdown

[krampak]

Uhmm... you may be right.

If you take a look at the full history

http://www.xtremesystems.org/forums/showthread.php?t=120699

Now I see that before reinstalling windows I could boot with both cards but I couldn't activate crossfire. That was with catalyst 6.9. They told me to try with older catalyst and I tried to install the 6.4 but it didn't let me do it, so i reinstalled windows.

Now with 6.4 I can't boot with both cards... so probably it's a driver problem. The trouble is that with 6.9 crossfire seems to not work correctly (you can see that on de XS post).

Any ideas ?

[burebista]

Liberty 620 is a monster. This year at our IT show our unique Enermax reseller made a test with a Liberty 620 powering 2 systems:

CPU: 2x A64 3200+
MB: 2x DFI LP UT NF4 SLI-D
MEM: 2x Crucial Ballistix Tracer 1GB PC4000 kit
DVD: 2x DVD-RW LG
HDD: 2x Seagate Barracuda 7200.8
GPU: 2x XFX 7900GT SLI
____2x XFX 6600GT SLI
Cooling CPU1: Asetek Waterchill xternal
______CPU2: Zalman reserator 1 Plus

Of course all was flawless. :D

http://img274.imageshack.us/img274/7144/liberty620hi8.th.jpg (http://img274.imageshack.us/my.php?image=liberty620hi8.jpg) http://img115.imageshack.us/img115/9575/liberty6202os5.th.jpg (http://img115.imageshack.us/my.php?image=liberty6202os5.jpg) http://img262.imageshack.us/img262/3599/liberty6203sm9.th.jpg (http://img262.imageshack.us/my.php?image=liberty6203sm9.jpg)

So I have a feeling that your problem is not PSU related.

[davidhammock200]

Last year the Liberty 620W was impressive with a max combined +12V@36A.

This year it is an also ran,
with Corsair 520W having up to +12V@40A & the 620W having up to +12V@50A!

Antec HE's & Trio's & Seasonic M-12E+'s & M-12's,
all have higher +12V amperage in relation to overall wattage.

[krampak]

I even know I can combine de rails.. needs to be opened ? :p

PD: Downloading catalyst 6.6 ....

[krampak]

Finally.... 6.6 gave me a 640x480 screen resolution with no more options but 6.5 are running fine at last... !!!!

http://img234.imageshack.us/img234/4035/1mm7.jpg

Thanks to all.

[dBTelos]

I don't know what I'd do if I was running @ 640x480 on my 19" LCD :p

[Bbq]

DFI Street would flip at that picture.

[davidhammock200]

DFI Street would flip at that picture.Travis might have a heart attack! :lol:

[dBTelos]

After all, DFI motherboards require 450W...a piece. Obviously.

[davidhammock200]

After all, DFI motherboards require 450W...a piece. Obviously.480W minimum! :lol:

[Bbq]

For just the motherboard:lol: :lol: :lol:

Add on a stick of ram? +100w. cpu? +250w. want a video card? Better buy that 3 kilowatt psu. :lol:

[davidhammock200]

For just the motherboard:lol: :lol: :lol:

Add on a stick of ram? +100w. cpu? +250w. want a video card? Better buy that 3 kilowatt psu. :lol:No the "joke" is for any system based on a current LanParty mobo. :D

[krampak]

Edit: sorry guys, didn't see the correct post with this resolution... x|

Tried Catalyst 6.8 now... got the magnific result of 6.6...

See yourself xD

http://img120.imageshack.us/img120/3852/argggg2li0.jpg


6.5 didn't gave me any improve in 3dmark with CrossFire configuration...

ahsu/&(/&)(/()·/$=)"·/)=$("·=)(=·)$( someone ones a pair of X1800XT? They run soooo fine ^___^

Edit: Finallyyyyyy the cat 6.5 where working ok but I forgot to activate Catalyst A.I...

[dBTelos]

What would happen if DFI got into video cards or something :eek: 1KW minimum, even on the extremely low end cards (7300 and the like). Running it on a DFI mobo, tack another 400W on :D

[Bbq]

DFI NF590 + 2x1gb + DFI 8800GTX sli + DFI Soundcard + FX 62 = You better have a nuclear power plant ready.

[krampak]

I'm having inestability problems since I have the CrossFire build...

Before It was 100% stable at 3.6Ghz 1.45V, ORTHOS and gaming.

Now at 3.5Ghz, after 2 hours of ORTHOS I got a blue screen (machine check exception), why not an error (STOP) in orthos ?

At 3D it is much more inestable, It usually hangs (usually hangs, not BSOD) at 3.5Ghz using the same voltage that I used with 3.6Ghz stable before crossfire.

At 3.3Ghz 1.35v I passed 4 hours of ORTHOS, I left it doing seti@home and last 2 days when I wake up PC was frozen :(

Leaving just 1 card problems go away... This PSU is suposed to be ok for that config. Maybe it's not a PSU issue ? I'm using cat 6.9

Can I merge 12V rails into 1 big rail ? (2x22 @ 1x36A ?) How ?


PD: Sorry for my english, this post sound stupid :D

[davidhammock200]

It may very well be your PSU, DFI-Street has had to dis-continue recommending Liberty's
for highend SLI/CF because of this very problem.

Do you have access to a better PSU with more +12V amperage?

[jonnyGURU]

Could also be a bad motherboard. :(

And although it could still be a PSU problem, I don't think you need a "better" PSU with "more 12V amperage" to narrow this down as a PSU problem, as Dave suggests.

I've run Crossfire X1800XT's with mere 600W PSU's with two 12V rails before with no issue. Doesn't mean the Liberty isn't capable. Could be just bad. From my understanding, Dave pulled the Liberty from "DFI's official list" because of isolated incidents of failure or incompatibility. Not from not being able to put out enough power.

[davidhammock200]

Could also be a bad motherboard. :(

And although it could still be a PSU problem, I don't think you need a "better" PSU with "more 12V amperage" to narrow this down as a PSU problem, as Dave suggests.

I've run Crossfire X1800XT's with mere 600W PSU's with two 12V rails before with no issue. Doesn't mean the Liberty isn't capable. Could be just bad. From my understanding, Dave pulled the Liberty from "DFI's official list" because of isolated incidents of failure or incompatibility. Not from not being able to put out enough power.Actually Travis pulled them, because of a number of DFI customers having problems very similar to this.

It seems the Liberty's can't maintain a high load. :(

[jonnyGURU]

Ok, sorry. Travis pulled them. ;)

But the point is, it's supposed to be able to sustain a high load and I've had no issues loading up the Liberty to it's max specs, which are often higher than most other dual 12V rail units because Enermax didn't adhere to the 240VA rule. If there are a few that simply can not sustain that power, then there's a quality control issue. But even a dual 12V rail PSU capable of only 35A combined should be able to power a pair of 1800's.

[davidhammock200]

Ok, sorry. Travis pulled them. ;)

But the point is, it's supposed to be able to sustain a high load and I've had no issues loading up the Liberty to it's max specs, which are often higher than most other dual 12V rail units because Enermax didn't adhere to the 240VA rule. If there are a few that simply can not sustain that power, then there's a quality control issue. But even a dual 12V rail PSU capable of only 35A combined should be able to power a pair of 1800's.How long do you keep them at max load?

Also this is a problem that seems to only occur after several months of operation.

[jonnyGURU]

I realize a poorly made PSU can degrade after time and that none of my testing can reflect the long term durability of any product. But that's not my point. I'm not arguing the fact that the PSU could potentially be failing or not.

My point is you're suggesting he gets a "beter PSU with more +12V amperage" to troubleshoot the PSU and I'm saying that he doesn't necessarily need a PSU with more +12V amperage. Better? Ok. If Liberty's are failing left and right, then better might be a good word to use. ;) But he doesn't necessarily need MORE juice.

If he threw a brand new $70 unit in there and his problems go away he's pretty much nailed the problem. :) X1800's don't need that much power, but if the PSU is failing, then it's not going to work.

[krampak]

I would have sold this Enermax Liberty instead of my old SeaSonic S12-600 if I have known that before... :(

I'll recive some PSU's in about 2 weeks so I'll wait until then I try with another PSU..

[krampak]

It wasn't the Enermax... I've just plugged a silverstone ST85ZF and is still unstable at values that with a single card is 100% stable.
So it may be a motherboard issue.. refered to CrossFire method.