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Destroy
08-28-08, 10:01 AM
Got my BFG card yesterday. Installed fine. No vid at boot.

During boot, LED on back of card is red normally and orange if I press the 8 pin vid card connector in a certain direction.

If I prop the 8pin vid card wires in certain direction (or hold it the whole time), I get a vid signal (green LED on back) and computer boots properly BUT soon as I try to run a heavy 3D game(Oblivion is what I used) the vid signal is lost when the main gameplay view appears. Oblivion menus and loading is fine. Also when video is lost, LED on card goes to back to orange from green.

I then have to hit reset switch, CtrlAltDel is of no help.

Even though my PSU is lightly under spec..... (see pics)
http://img373.imageshack.us/img373/6917/psspecslp8.th.jpg (http://img373.imageshack.us/my.php?image=psspecslp8.jpg)
http://img166.imageshack.us/img166/1706/psrequreiz6.th.jpg (http://img166.imageshack.us/my.php?image=psrequreiz6.jpg)

There is more that 42amps on my 12v rail (18x3). Plus my 8800GTX system never drew more than 345watts at full game. So I feel there should be plenty watts left to handle my 280.

Do I have a bad card connector or something? I can sit there and wiggle the 8pin connector at the vid card side an see the LED on the back of the card change from red to orange with the comuputer off. When its orange it boots proper, when red it doesnt.

I don't have any other PSU to test with so I really don't want to buy one if I don't need to.

nekrosoft13
08-28-08, 10:33 AM
you already answered your own question ;)

it is the PSU.

TWO issues
1) the 8-pin connector, one of the pins might be damaged and not plugged in all the way
2) multi rail PSU can often cause problems, doesn't matter what your total AMPs are. you have 18x3 not 42. you might be overloading one of the rail, and not using fully one.

when you have single rail PSU, you never have to worry about overloading one rail, or which cables to use

Destroy
08-28-08, 10:54 AM
Aren't all newer, better PSU purposely using separate 12v rails? I thought it was a plus feature.

So which one at the store (http://www.bestbuy.com/site/olspage.jsp?_dyncharset=ISO-8859-1&id=pcat17071&type=page&ks=960&st=POWER+SUPPLY&sc=Global&cp=1&sp=-currentprice+skuid&qp=crootcategoryid%23%23-1%23%23-1%7E%7Eq504f57455220535550504c59%7E%7Encabcat05000 00%23%231%23%23f&list=y&usc=All+Categories&nrp=16&iht=n) will be quietest?

marakaid
08-28-08, 11:12 AM
My Corsair VX550 works correctly with GTX280, so you don't need to buy one very expensive.

Destroy
08-28-08, 11:34 AM
My Corsair VX550 works correctly with GTX280, so you don't need to buy one very expensive.

Interesting. I really think there is more of an issue with the card itself. Suppose I'll have to at least buy a PSU to test with and figure out my situation.

nekrosoft13
08-28-08, 12:31 PM
Aren't all newer, better PSU purposely using separate 12v rails? I thought it was a plus feature.

So which one at the store (http://www.bestbuy.com/site/olspage.jsp?_dyncharset=ISO-8859-1&id=pcat17071&type=page&ks=960&st=POWER+SUPPLY&sc=Global&cp=1&sp=-currentprice+skuid&qp=crootcategoryid%23%23-1%23%23-1%7E%7Eq504f57455220535550504c59%7E%7Encabcat05000 00%23%231%23%23f&list=y&usc=All+Categories&nrp=16&iht=n) will be quietest?

multi rail is the cheaper least desirable method.

Most high quality high efficienty PSU use single rail. with single rail you never have to worry about overloading one of the rails, or trying to determine which cables to use to have sufficient amount of power to your equipment. it wasn't such a huge problem before, but as video cards and other components require more and more power this issue will happen more often.

nekrosoft13
08-28-08, 12:33 PM
one of the best PSU on the market

http://www.silverstonetek.com/products/p_contents.php?pno=op850&area=

Introduction
The OP series marches on with the design of OP850, the fine form established by the first SilverStone performance single +12V rail Zeus ST56ZF. Precision manufactured by industry leading robotics assembly line and designed by SilverStone’s world-class PSU engineering team, the OP850 is packed with serious power with supreme performance. With a single +12V rail continuous output up to 70A at 50C, this peerless power is harnessed in a compact enclosure and cooled by a high quality 120mm fan tuned to perfection. Combining these performance and ergonomic attributes into a power supply such as the OP850 is a dream come true not only for ardent enthusiasts but also for those who are simply looking for the best.
*Trend setting powerful single +12V rail

Special Feature
Class-leading continuous 70A single +12V combined output at 50℃
Dual PCI-E 8pin connectors
Quad PCI-E 6pin connectors
Six Serial ATA connectors
Precision manufactured by robotics
Support for ATX 12V 2.2 & EPS12V
Active PFC
Japanese primary capacitor

Destroy
08-29-08, 08:37 AM
Seems I had/have 3 issues.

1, Even though the card went in easily enough, my HD bay was slightly in the way causing it not to be seated fully.

2, My power supply is not good enough. Bought this (http://www.crunchgear.com/2006/08/11/fps-booster-x3-525-inch-drive-bay-power-supply/) and installed this (http://www.crunchgear.com/2006/08/11/fps-booster-x3-525-inch-drive-bay-power-supply/) and all boots proper now. Using my normal PSU alone does not allow the card to boot. :(

3, My card has issues. (http://www.nvnews.net/vbulletin/showpost.php?p=1760328&postcount=253)

nekrosoft13
08-29-08, 08:51 AM
i would like to say before you rule your card faulty, what is the case, fans, airflow like?

look here
http://www.nvnews.net/vbulletin/showpost.php?p=1698247&postcount=39

Destroy
08-29-08, 10:07 AM
Case open, plenty of air flow in my 67degree F room; got my A/C cranked. :D Air flow and room heat is not an issue. This card will shut down my system in less than 25 sec if I set res and AA higher in Furmark.

nekrosoft13
08-29-08, 10:16 AM
in that case, yes your card is defective. BFG probably had the highest number of bad cards.

hemmy
08-29-08, 01:37 PM
you already answered your own question ;)

it is the PSU.

TWO issues
1) the 8-pin connector, one of the pins might be damaged and not plugged in all the way
2) multi rail PSU can often cause problems, doesn't matter what your total AMPs are. you have 18x3 not 42. you might be overloading one of the rail, and not using fully one.

when you have single rail PSU, you never have to worry about overloading one rail, or which cables to use

Actually he only has 40 amps, not 42 or 18x3

Eliminator
08-29-08, 03:15 PM
if it stutters and overheats over 100*C then it's one of the early ones that are damaged... get it replaced... if you're returning it to a local store ask if they got any recent shipments in from the manufacturer as the newer models dont have this problem... i had a BFG GTX 280 OC which would stutter and overheat to 105*C and it wasnt even overclocked although it's the OC model... so i returned it to the store but the only cards they had were the OC2 but they were at least new shipments from the manufacturer... ended up paying an extra $35 for it but it was worth it since this one does not go above 86-87*C or so and is properly overclocked

AdamK47
08-29-08, 04:29 PM
Actually he only has 40 amps, not 42 or 18x3

Exactly. 480W/12V = 40A.

Destroy
08-29-08, 04:38 PM
Already fixed my problem.

Ordered a 4870x2. :p I really want to play Clear Sky in full glory and the 280 isn't going to cut it it seems. Ordered a Corsair 750TX too btw.

Returning 280 for a refund. Had the 280 been flawless upon receipt, I probably would of kept it.

Eliminator
08-29-08, 04:48 PM
bad choice... it seems the 4870x2 and the software for it has tons of bugs and issues... dont forget the microstuttering

Xion X2
08-29-08, 05:15 PM
Already fixed my problem.

Ordered a 4870x2. :p I really want to play Clear Sky in full glory and the 280 isn't going to cut it it seems. Ordered a Corsair 750TX too btw.

Returning 280 for a refund. Had the 280 been flawless upon receipt, I probably would of kept it.

Smart choice. It's funny.. I was just thinking to myself the other day after reading your decision to go with a 280 "I hope he doesn't end up with a defective one... "

I know some of the reports of failing 280s on this forum are probably due to user error (not speaking of yourself, Destroy), but this is getting ridiculous. When is Nvidia going to wake up and start QC'ng their high-end? The failure rate on these seems to be much higher than it should be.

But then again, I guess it doesn't matter if your fanbase keeps coming back for more with 2nd, 3rd, and 4th RMAs. It's like some around here have a masochistic personality or think that's the way it's supposed to be.

For the record, I think the 260 is a fine card as there seem to be no issues with those. Haven't seen a single complaint out of it yet.

Xion X2
08-29-08, 05:17 PM
bad choice... it seems the 4870x2 and the software for it has tons of bugs and issues... dont forget the microstuttering

What "bugs" are you speaking of? I haven't seen any.

And microstuttering has become the most overhyped terminology in the history of graphics performance. Crossfire performs great and is just as smooth as a single card in every game I have tested thus far.

Eliminator
08-29-08, 05:45 PM
What "bugs" are you speaking of? I haven't seen any.

And microstuttering has become the most overhyped terminology in the history of graphics performance. Crossfire performs great and is just as smooth as a single card in every game I have tested thus far.
heres a bunch http://futuremark.yougamers.com/forum/showthread.php?t=88252

as for the microstuttering... ive had SLI before and I couldnt stand the microstuttering... i hardly think anything has improved

jcrox
08-29-08, 05:45 PM
4870x2 is starting to look like it will be my choice. Now that I have my money back from returning my toaster....errr.... GTX280 I think I may have to try one out... maybe even get a new mobo and try 2 out

Xion X2
08-29-08, 05:58 PM
heres a bunch http://futuremark.yougamers.com/forum/showthread.php?t=88252

Aside from the usual driver errors that always occur with new hardware, well, I see nothing in that thread. There are two who seem to be experiencing enough problems to return their cards, but the rest of the group are experiencing maybe one or two issues that are to be expected.

as for the microstuttering... ive had SLI before and I couldnt stand the microstuttering... i hardly think anything has improved

Since when? 8-series? This problem has been greatly reduced this gen due to the higher bandwidth between GPUs. The X2 has a 2.0 PCI-E bridge chip on the same PCB as the 2 GPUs.

Destroy
08-29-08, 06:14 PM
bad choice... it seems the 4870x2 and the software for it has tons of bugs and issues... dont forget the microstuttering

Maybe bad choice but I guess I felt that since I have to go through the hassle of waiting, shipping and returns, I might as well just get a different brand card.

I want to see and test for myself how bad or good this 4870x2 is. I'll let everyone know how it goes.

I can always go back again later to 280 but I'm hoping if I need to, a GTX290OCx2 will be out or something by then.

Heinz68
08-29-08, 06:59 PM
I wish you good luck and have no idea why somebody would say bad choice, especially after you said that you already placed the order.

Plus who is this guy with GTX 280 avatar and none experience with HD 4870 x2 telling you that you made a bad choice.
I guess this means everybody who bought HD 4870 x2 made a bad choice.

It's exactly the same if i would say, you made bad choice getting the GTX 280 and I sure don't think so. I think it was just bad luck, not many off the overheating 280s should be still around provided quality control improved.