Yo i just bought a

[Kursah]

That psu shows max of 18amps on a single rail, I'm not sure if it can draw power from the other rails, just a hunch on your problem.

Only problem with that is that PSU's advertised as having multiple rails still share amperage and act as a singular rail in most instances. A good rule of thumb is to add up all 12v rails' amperage to find out the 12v rail amperage support of that particular PSU.

That's how I've come to understand 12v rail systems on current PSU's. There are a couple of threads about that on this forum as-well-as many other tech-related forums. But maybe his particular PSU has an issue or one of the supports is in fact failing, or maybe it does have actual seperate rails. I don't know for sure...

When you have your PSU's hooked up, use a program like Everest, Speedfan or whatnot to watch your 12v to see how much it fluxuates, I don't know if there'd be an issue there. But I do know if it jumps around a lot (drops down below 11volts and back up over 12volts), there could be a severe issue.

As-far-as that low-voltage concern, with that PSU is it modular? Do you have a different cable to try if so? Do you have a different plug to try if so? And if at all possible the next time you get the message, try to copy the error code or get a screenshot. I'll do some searching on why your 8800GT would be causing such an issue. I hope we can get you sorted out and gaming how you want to be!

I'm sure between all of us here on TPU, someone will have a solution, or something. This problem seems unique for sure though!

Also, do you have an option in your BIOS for PCI-e related settings? I.e. PCI-e bus speed, voltage and what-not?

 

[Cold Storm]

Here is where new things get all of us... the old stuff is great with the old, but the new stuff requires us to buy new in order to work right. Sorry to see that your learning this the hard way...

 

[bigmacks433]

425W PCI Express-compliant system power supply with a combined 12V current rating of 28A or more


^ specs for 8800 GT

my psu is 650 watt with a combined rating of 36 amps on 12v rail because it's a dualrail .


that's what even spec's mean a combined rating of 12v rails =ing 28.

my psu should be good.

there's things it could be.

maybe my harddrive? 7200 rpm ata 133 drive could it be failing/slow performance/loads dont seem as fast but drive seems to be working fine with f.e.a.r.

my cpu isnt fast enough? something wrong with my motherboard? maybe it is my psu? or the card damn man so much ******** lol


COMPUTERS .... lol fun

 

[bigmacks433]

Ok,

let's see here f.e.a.r performs on par with benchmarks across the net and works great.

but my unreal tournament 3 performance sucks complete ass 30 -40 fps 1600x1200 no aa max? come on wtf 250$ waste imho.

someone recommend a psu.

because im gonna buy a dualcore anyway, but i dont think there's anything wrong with a motherboard or ram* but maybe it's a combination? slow cpu low power and failing hdd? the hdd is kinda new though.

 

[mrsemi]

do they even make a psu with over 28 amps on a 12v rail?

http://www.newegg.com/Product/Product.aspx?Item=N82E16817703005

 

[Cold Storm]

http://www.newegg.com/Product/Product.aspx?Item=N82E16817703005

my god man! And I thought mine was good! thats a hell of a good price to go for man. I suggest that you go with that and just build a whole new rig. Your hdd's shouldn't be a issue. Unless your running Vista... then its a thing...

 

[Kursah]

http://www.newegg.com/Product/Produ...=2010320058+50001459&name=Corsair+Memory,+Inc.

I use the HX520, it's great, modular, performs well, runs silent, the voltages are solid. It's made by Seasonic, but has better capacitors and a 5 year warranty to boot. Plus their prices are very competetive for a good quality PSU.

I have no regrets about going the 520 route, as I have no need for 600+ watts as I never plan on using SLI/CF(x). I'd rather have one card...that's just my preference though. I can say in the last 6 months I've owned my Corsair, it's been excellent and I've never been so content with a PSU ever. I've used many, from cheaper models of Raidmaxes to some more expensive Antecs.

 

[bigmacks433]

there's something definitly wrong with my rig running 1024x768 max no aa my fps is 30-40 fps on unreal tournament 3 on the deathmatch map arsenal with only 5 bots WTF that's complete shit, gotta be underpowered psu? i really wouldnt call sc 2.8 ghz a64 slow.

it seems my 7800 gtx pulled 60 fps at 1024x768.


psu is probley it, that would kick ass if when i buy new psu the fps improves a great deal and wont need dualcore, even though im going to buy one because dc a64 s939 getting rare.

 

[bigmacks433]

7800 gtx is in rma now* so i cant test it, but i remember my fps being better at 1024x768 being higher on the 7800 gtx than this 8800 gt. maybe video card is using all power since it's low powered and resulting crap fps? cant wait to get other card back to test*.

eitherway this sucks it's the holiday's and ummm really no psu's around here good ones.

 

[bigmacks433]

yo i called bfgtech support they said a a combined amperage of 28 amps dual amp18 12v should be fine, he tried to say if f.e.a.r runs fine then the rigs fine and it's ut3 related.

but i told him it said low power would pop up he didnt know what hells wrong lol i know more than he does, im just gonna buy a single 12v rail over 28 amps psu.

i wonder if it's really the cpu but i could of sworn with the 7800 gtx the framerate was higher at 1024x768.

 

[bigmacks433]

i remember the low power message would pop up even when using the 7800 gtx bfgtech dude said psu could be failing but it's running fine now, and f.e.a.r scores fine/runs great.

he said a dual 12v with each 18 amps is fine as long as combined is over 28 amps.

im gonna feel stupid if i buy a new psu and it runs the exact same.

But i definitly remember the 7800 gtx pulling higher fps at 1024x768 same psu this 8800 gt is using now 650 watt silverstone psu.

 

[Cold Storm]

Just look at it this way... your a step or two closer to a new rig. I know things can get down, and you really don't know whats going on. Also remember one thing. Old CPU's will pull WAY MORE than the new ones. I was getting 589 watts pulling when i was ocing my old rig. Now its not even 500 will less stuff..

 

[bigmacks433]

HEY I CAUGHT A PICTURE OF THE LOW POWER CRAP, this appeared after overclocking lol.

To protect your hardware from potential damage or causing a potential system lockup, the graphics processor has lowered its performance to a level that allows continued safe operations.


on the silverstone 650 watt psu. definitly psu? lol

http://img165.imageshack.us/img165/4854/62704055vq2.jpg

wtf the bfgtech techsupport dude said the psu is fine also.


time to buy new psu i guess its failing or just not enough power.

 

[bigmacks433]

i ran f.e.a.r benchmark after it said performance has been lowered and it scored 44 fps 1600x1200 x4 aa x16 af max vs 73 fps when that message doesnt appear, but ut3 still runs ass without message appearing or not so even when performance hasnt been lowered ut3 still runs ass. wtf is the deal.

im afraid even if i do buy a new psu the game will still run like ass.

 

[Mussels]

i say thats a clear indicator of a PSU problem.

Unless your mobo is missing a power connector (because you forgot to plug it in) or the connector to the video card is loose, that really says the PSU isnt good enough.

 

[bigmacks433]

i say thats a clear indicator of a PSU problem.

Unless your mobo is missing a power connector (because you forgot to plug it in) or the connector to the video card is loose, that really says the PSU isnt good enough.

im sure the psu is the problem but what i dont understand is sometimes it says it sometimes it dont and when it doesnt say it fear performs on par with even core 2 duo 6800x techpowerup benchmarks with a 8800 gt but ut3 still runs ass lol, i gues because game more graphically demanding? hopefully nothing wrong with mobo/ram/hdd/card and only psu.

yep gonna buy one powerpc and cooling 610 probley.

What exact cable would be supplying the most power?

i have 2 molex cables with 3 molex connectors each and 2 pcie 6 pin cables from psu.

ive tried molex to 6pin and performance sucks and 6 pin connector from psu sucks both ways.

 

[Mussels]

im sure the psu is the problem but what i dont understand is sometimes it says it sometimes it dont and when it doesnt say it fear performs on par with even core 2 duo 6800x techpowerup benchmarks with a 8800 gt but ut3 still runs ass lol, i gues because game more graphically demanding? hopefully nothing wrong with mobo/ram/hdd/card and only psu.

yep gonna buy one powerpc and cooling 610 probley.

What exact cable would be supplying the most power?

i have 2 molex cables with 3 molex connectors each and 2 pcie 6 pin cables from psu.

ive tried molex to 6pin and performance sucks and 6 pin connector from psu sucks both ways.

the realbitch is, we dont know what plugs are on what rails. I can suggest using the PCI-E cords (native ones) first.
Some games would be more demanding than others, and therefore fail faster. FEAR is also rather old... so whos to say the card isnt slowing down, but just behaving OK anyways?

can you confirm what power leads are connected to your mobo for me.

There should be a main lead (20 pin, rectangular) with an extra 4 pin (square) plug connected. (called 20+4 pin ATX)
There should also be 1, or possibly 2 4 pin cables (square plugs) that connect elsewhere

Some boards, also have a 4 pin molex (rectangular) near the PCI-E slot. If your board has one of these, plug a spare power into it.

 

[Cold Storm]

I have to say your psu man. If you want there is a calculater out there that can calculate what wattage you will be needing.... the power and cooling one is a great one to get... and from that you will be able to see what it is...
UNreal is really demanding on graphics! Thats why they bundle the whole Phyx engine with the game. Not alot of games will require more phyx then what is made org. but, they never met the team at Epic...
Good luck

 

[bigmacks433]

the realbitch is, we dont know what plugs are on what rails. I can suggest using the PCI-E cords (native ones) first.
Some games would be more demanding than others, and therefore fail faster. FEAR is also rather old... so whos to say the card isnt slowing down, but just behaving OK anyways?

can you confirm what power leads are connected to your mobo for me.

There should be a main lead (20 pin, rectangular) with an extra 4 pin (square) plug connected. (called 20+4 pin ATX)
There should also be 1, or possibly 2 4 pin cables (square plugs) that connect elsewhere

Some boards, also have a 4 pin molex (rectangular) near the PCI-E slot. If your board has one of these, plug a spare power into it.

I have my 4 pin ground hooked up, my 24 pin atx mobo power cable/ one molex with with 3 connectors connected to hdd/dvd/ molex power near pcie slot for extra power*

ive tried both the molex to 6pin pcie cable and the dedicated pcie6 pin line sucks ass performance wise both ways and i could of sworn i was getting higher performance with 7800 gtx 256 mb ut3 max 1024x768 no aa so i dont see how a faster card on same cpu would be performing worse.

 

[Mussels]

because the new card needs more power to run at full speed - they only have 2D and 3D clocks (slow and fast) and if the new one needs more power, its not going to manage its 3D clocks.

The new cards 2D clocks can be slower than the old ones 3D.

Not sure what you mean by 4 pin ground - elaborate please? (it should have two black, two yellow wires)

So you have the main 24 pin, molex near PCI-E (swap this cable please, try and get it to another rail) and if we're on the right track, the 'ground' you refer to is the other 4 pin - is there room for another 4 pin where that one connects? (its not on all boards, but 8 pin is fairly common these days)

 

[bigmacks433]

im just trying to get my ut3 working right, does anyone have a 8800 GT and ut3 performing crappy also? that game kicks ass imho in my honest opinion< i own the full game* .

Im definitly going to buy that powerpc and cooling 610w psu sucks since it's holidays i wont beable to get it untill awhile. but that thing kicks ass 49 amps on a single 12v rail .

my psu is dual 12v rail 18 amps a piece, i think the card might not like dualrail set up i heard of problems with dualrail/highend cards before.

 

[bigmacks433]

damn it please let psu be the only problem and fix it

does anyone have ut3 and a 8800 GT performing good? lol

 

[bigmacks433]

blehh

 

[bigmacks433]

It all started.

my asus sli board 650 silverstone psu /7800 gtx 256 mb was running great ut3 was having fun time and then i think i got the low power error like im getting now but one of my apps wasnt loading so i rebooted so i went to switch off the psu and the only thing i could i done was maybe brush up against moniter cable just so gently i didnt even do crap but i switched power back on and nope no video wouldnt post/fan just fun full blast and i couldnt get 7800 gtx to post full blast fan in this in this motherboard im using now.

plus pci gf4 that works in this mobo wouldnt work in asus mobo.

so rmaed mobo/7800 card, bought 8800 gt and used my other mobo basically for when im waiting for other crap and im getting crap performance in ut3.

so now im getting low power bug like before plus artifacts in ut3 and other games unlike before.

this freaking sucks

 

[W1zzard]

psu is probley it, that would kick ass if when i buy new psu the fps improves a great deal and wont need dualcore, ...

a better psu wont make your pc/graphics or anything else go faster