8800GTX Problem

[JohnD212]

I bought the XFX 8800GTX this past weekend and installed it in my Dell XPS 600 P4, 3.8 GHZ with 2 GB of RAM. It was installed to replace a pair of 7800 GTX (256 mb each) in SLI Mode. I am not getting any performance boost from this card at all and in fact, find games are running significantly worse. Someone suggested that I should check my power supply. I know my system has a 650 Watt power supply and it recommends 625 or higher BUT now I'm being told to check my 12V rail amperage. I have no idea what this is or really how to check what I have. Can someone point me in the direction of where i should look? Also, any suggestions on good power supplies ( I don't know one from the other) that would offer me more than 650Watts of power and the required 12V rating of 30A? I'm being forced to learn more about this computer then I ever thought I would. Thanks a million.:grin:

[Scott Sherman]

Well here is something to try.

http://www.drivercleaner.net/

Get the software, un-install NVIDIA graphics driver. Reboot machine and go into safe mode. Run Driver Cleaner and chose JUST NVIDIA. That will get only the graphics drivers and not mess with the motherboard.

Reboot machine and install the latest drivers from NVIDIA website for the 8800.

See if that fixes it, you may have left over trasses of the old Dell Drivers. If you do need a bigger power supply you can only get that from Dell. They do not use standard wiring and putting in a power supply besides Dell will destroy your computer.

Let us know how it works out.

[Pat123]

Hp dont use this do they?? the wiring thing?

[xfxsupport]

JohnD212, I would definitely take Scott's advice (like usual) and run the driver cleaner just to ensure the previous video drivers are completely removed. Be aware you should only remove the video drivers via driver cleaner (in this situation). I only say this as I have talked to too many people that not only removed their video drivers but all of the motherboard drivers and that gets ugly. You can find all the information regarding your power supply a sticker that should be on the side of the power supply. Also if you have a support ticket please let me know the number.

XFX Support

[JohnD212]

Well I've used Driver Cleaner Pro...I basically uninstall my old drivers, disconnect my computer from the cable modem..go into safe mode, run Driver Cleaner Pro, reboot, install new drivers and then reboot again. That seemed to work fine. Unfortunately with the XPS 600 from Dell you can't see the power supply as it's all sealed up in the base of the case. From what I've read I think the 650 Watt supply should be enough for this card but I'll call Dell to confirm (though that's a gamble as to how helpful that will be). I have an open ticket directly with XFX...it's ticket number 72104. I guess i'm frustrated cause I'm not looking for unbelievable performance..just think that at 1600x1200 I should be able to turn a few settings up...instead I get like 20fps and the screen has a slight flicker when playing a game like Titans Quest. Is there any free way to test the effectiveness of my card? I use Fraps for frame rate and have run the DXDiag test but I don't know much else to see why I'm seeing spotty performance with this card. Thanks for any help.

[XJnine]

Ignore my stupid question. I misread the original post and I should be flogged.

[JohnD212]

My previous cards (2 - 7800 GTX cards ) were running in SLI mode and yes, the control panel confirmed that. This card, the 8800GTX is only one card and thus no SLI mode.

[xfxsupport]

Try downloading and running 3dmark06 found at www.futuremark.com and this will give us a relatable score to go off of. Also have you contacted Dell for any bios or motherboard chipset drivers updates? If at all possible are you able to test this card in another system? Pleas let me know.

XFX Support

[JohnD212]

Thanks...I downloading 3dmark06 today and ran it. I got a score of 6504...SM2.0 Score = 2938, SM 3.0=3799 and Cpu Score = 1136. There were other results based on the scene that was used, for example Fire Fly Forest = 23.368 fps. I don't really know what any of the scores me or even if this is a good score. My cpu test it ran came back with CPU 1 = 0.357fps and CPU 2= 0.578fps. I already updated my Bios a few weeks ago. There doesn't appear to be a Motherboard update. I don't have another system to test this in unfortunately. I'm concerned that the power supply may not be sufficient. I have a 650 Watt PSU but Dell is unable to tell me what the Amerperage is for the 12V. I know it needs 625 Watts and 30A rating so I'm not sure I have that. Do you think it would be that and would a 8800GTS run better in my system? I just want good reliable performance on this system. Thanks

[werty316]

One reason to build your own computer and why prebuilds are not recommended if you ever want to upgrade them.

Holy crap that is a low 3dmark06 score for a 8800GTX but then again you have a huge CPU bottleneck.

Doesn't the PSU have a sticker on the side with its specs?

You could try a GTS but why blow so much money?

[Das Capitolin]

While 95% of all Dell tower systems built in the past three years have all used standard ATX PSU's, and no longer the proprietary type, there are a few which still incorporate a propietary design. Among those very few is the XPS series, such as your XPS 600.

This unit has a power supply which instead of a square box located inside the case, it uses a flat design which adds about an inch to the entire base of the tower unit. The case actually sits atop the PSU on the XPS 600, sort of like the foundation to a home. Unfortunatly, there will be no ungrading this unit, although it is good for the 650W max which it is rated for.

While this PSU would run an 8800 GTX with a C2D (lower power draw from C2D), your P4 is hungry for power and draws more watts then other CPU's. A more suitable upgrade for this system would have been the 8800 GTS, which draws about 100W less power.

EDIT: I forgot to add that your PSU only supports a single 12V PCI-E connector, so you must be using the adaptor. This should have been your first indicator.

[JohnD212]

I have to thank you. That is the best description of what I have in my system. I called Dell today and literally...they had no idea what type of PSU I have or was a 12v rail rating was. They were worthless for lack of a better word. I figured the 8800GTX was too much for my system and most likely I will just purchase the GTS and sell my GTX on EBay....its still pretty new and I see I shouldn't take more than a $100 punch at most. Expensive lesson to learn but in the future...I won't be buying anymore Dell's and will stick with systems that are more upgradeable in terms of PSU etc.. I actually have two plugs that plug into the 8800 GTX...my system had the 7800GTX in SLI so the two power cords plugged into those. Thanks again.

[Scott Sherman]

Humm, I am starting to wonder here. Did you have the 512MB 7800GTX's or the 256MB 7800GTX's? If they where 2 of the 512MB the power supply should run that card.

[JohnD212]

No...I had two of the 7800GTX with 256mb of memory each...I know I have the 650Watt power supply but those were the cards that I bought with the Dell.

[Kougar]

I would have to say it is not your power supply. Two 7900GTX cards in SLI use more power than a single 8800GTX card, often around 50watts more at least. I don't see the numbers changing much when taking into account you were using 7800GTX models. I can cite Anandtech's review for extensive power testing. Since no low power msgs, reboots, or blue screens are happening, I'm fairly sure it's not a power issue.

I believe the issue is that your CPU is to much of a bottleneck. I'm not trying to be rude, but Prescott CPU's were already the slowest chips the day they were born... the Intel CPUs out today make mincemeat of AMD's chips. Well, AMD's chips still make mincemeat of Netburst based processors... I'd easily wager that your CPU was already bottlenecking your 7800GTX cards in SLI.

[xfxsupport]

What operating system are you using XP32, XP64 or a different one? Also what version driver? I might have missed it but didnt see this info in the posts.

XFX Support

[mousiness]

I would have to say it is not your power supply. Two 7900GTX cards in SLI use more power than a single 8800GTX card, often around 50watts more at least. I don't see the numbers changing much when taking into account you were using 7800GTX models. I can cite Anandtech's review for extensive power testing. Since no low power msgs, reboots, or blue screens are happening, I'm fairly sure it's not a power issue.

I believe the issue is that your CPU is to much of a bottleneck. I'm not trying to be rude, but Prescott CPU's were already the slowest chips the day they were born... the Intel CPUs out today make mincemeat of AMD's chips. Well, AMD's chips still make mincemeat of Netburst based processors... I'd easily wager that your CPU was already bottlenecking your 7800GTX cards in SLI.

+1 but in the end it all comes down to future upgrades if he ever wants any that might be needed to run such a card

[bosanac1]

Thanks...I downloading 3dmark06 today and ran it. I got a score of 6504...SM2.0 Score = 2938, SM 3.0=3799 and Cpu Score = 1136. There were other results based on the scene that was used, for example Fire Fly Forest = 23.368 fps. I don't really know what any of the scores me or even if this is a good score. My cpu test it ran came back with CPU 1 = 0.357fps and CPU 2= 0.578fps. I already updated my Bios a few weeks ago. There doesn't appear to be a Motherboard update. I don't have another system to test this in unfortunately. I'm concerned that the power supply may not be sufficient. I have a 650 Watt PSU but Dell is unable to tell me what the Amerperage is for the 12V. I know it needs 625 Watts and 30A rating so I'm not sure I have that. Do you think it would be that and would a 8800GTS run better in my system? I just want good reliable performance on this system. Thanks
hey dude...the reason why it would be running like a dog, i work at a computer shop and yeah we have had a few customers coming back with xfx and saying that they are getting lag after having it in sli with 2 previous card, try a firmware update, update your bios, and another reason is that if you have a machine like dell they are factory set to sli, so try and find a way maybe with pins or a slot card try to move the pins to single vga not sli or the slot card to single vga, this is a patended design by asus motherboard, you might get the occasional gigabyte motherboard with it but that will fix the problem, update your bios firmware and stuff like that, and try and correct the pins, also your obviously usign nvidia try downloading the newest drivers for your 8800gtx theyre have been a few new releases made after the original date they were made, this will fix it 100%

[Arthur Billy]

April 2, 2008

Hello JohnD212

Yesterday I purchased the BFG nVidia GeForce 9600 GT OC Graphics card and a BFG nVidia GeForce 8800 GTS OC graphics card. I also use a Dell XPS 600 computer. Not for gaming purposes, but for my engineering work and to be able to plot special three dimensional graphs.

Currently I use a BFG nVidia GeForce 7950 GT OC Graphics card with the nVidia driver 93.71 which is functioning beautifully. I wanted a better card. The correct driver is critical to error free operation of my Graphic card. Whoever provides your driver call them, tell them of your problems and have them tell you which is the most stable driver for your card. The latest driver may not be the correct one for you to use. The problems that you have been experiencing may possibly be because of a corrupt or unsuitable driver. These problems are not easy to troubleshoot.

Prior to this, I purchased the BFG nVidia GeForce 9600 GT OC Graphics card using the nVdia driver 174.53 to replace the BFG nVidia GeForce 7950 GT OC Graphics card and nVidia driver 93.71.

I encountered a lot of problems after installing the BFG nVidia GeForce 9600 GT OC Graphics card and nVdia driver 174.53. BFG provided me with excellent free technical support. We worked on the two major problem for about 10 days and could not solve them. No stone was left unturned so to speak to solve the problems. I finally gave up and returned the BFG nVidia GeForce 9600 GT OC Graphics card.

Someone suggesting to you that you check the specifications of your XPS 600 and rail voltage and rail amperage gave you excellent advise.

I will explain to you what this means in simple terms and provide you below with the XPS 600 Power supply specification. Calling Dell technical support will not do you any good as it is the epitomy of mediocrity. Dell Technical support today could not even provide me with the XPS 600 Power Supply specification nor the required rail voltage nor rail amperage output.

The most recently eleasedBFG nVidia GeForce 9600 GT OC Graphics card and nVidia 174.74 driver and the BFG nVidia GeForce 8800 GTS OC graphics card with nVidia driver 192.61, that I am planning to install and test on my XPS 600 computer, are very powerful Graphics cards.

Prudence dictates that I must know what the actual voltage and amperage requirements of these two cards are not just what the maximum voltage and amperage given to me on the box they came in. I also must know if the XPS 600 Power Supply can provide the rail voltage and amperage to the two new graphics cards that I am going to install and test seperately.

To answer your question regarding installing another more powerful power supply into your XPS 600 computer than the existing 650 Watt one. The power supply of the Dell XPS 600 is the integral base of the XPS 600 computer. It is not easy to remove and to replace. There is not enough room in the XPS 600 computer case to install another power supply which to the best of my knowledge would be impractical to do. To the best of my knowledge it is the only power supply that Dell provides for the XPS 600 unless the new XPS 720 has more than the maximum 650 watts of the XPS 600 power supply.That is a lot of power. Dell discontinued the XPS 600 computer soon after I bought it at a very high price. That did not endear Dell to me.

The Dell XPS 600 power supply is a DD710 650 W XPS-G6 power supply built by Newton Power Limited, probably a Japanese company. I have not been able to find any contact information for the Newton Power Limited.

The specification of the XPS 600 power supply is given below. N650P-00 is the model number:

N650P-00, 25-DG1767-01, 650W 12V PSU for PowerEdge SC1420, Precision
670, Dimension XPS 2MK, 100-120V/200-240V AC In & 2 6cm Fans on Back Of
Case, 2x12-pin P1 & 2x10-pin P2 on 29cm Cables, 2x6-pin P3 on 21cm
Cable, 2x3-pin P4 on 16cm Cable, 2x3-pin Black P5 PCI-E VGA on 38cm
Cable, +3.3V & +5V Combined 240W Max, +12V_A +12V_B +12V_C Combined 500W
Max, +3.3V 25A, +5V 30A, +12V_A 17A, +12V_B 17A, +12V_C 17A, -12V 0.5A, +5Vfp 2A, 223mm W x 65mm H x 415mm D

I obtained the Specification from Cygnus Supply, LLC in Minneapolis, Minnesota

Charles Hunstiger
Phone: (612) 284-2898 x210
Toll Free: (866) 884-0288
Fax: (815) 331-0891

According to the information on the box, the nVidiaGeForce 9800 GTX Graphics card requires 12 volts and 24 Amps and the nVidia GeForce 8800 GTS OC Graphics card requires 12 volts and 28 Amps. That however does not tell you the whole story. That is were the Rail values are important

I called my friend at BFG Technologies that makes the nVidiaGeForce 9800 GTX and the nVidia GeForce 8800 GTS OC Graphics card, to determine the rail voltage and amperage that each card requires. He told me that both cards use the +3.3V 25A and the +5V 30A rails of the Dell XPS 600 computer, DD710 (N650P-00) power supply. The cards automatically select the rails they need. Since these cards will automatically select the +3.3V 25A and +5V 30A rails of the Dell XPS 600 power supply, they will be supplied with the correct voltage and amperage.

Given below are the Rail voltage and Amperage combinations that the XPS 600 power supply will provide. I have extracted them for you from the above given XPS Power supply specification

Max, +3.3V 25A, +5V 30A, +12V_A 17A, +12V_B 17A, +12V_C 17A, -12V 0.5A, +5Vfp 2A, 223mm W x 65mm H x 415mm D

Notice that the first two, Max, +3.3V 25A, +5V 30A, are exactly the Voltage and Amperage combinations for the BFG nVidiaGeForce 9800 GTX and the nVidia GeForce 8800 GTS OC Graphics card. Therefore The XPS Power Supply will provide adequate Rial Voltage and Amperage to the cards.

I want to alert you to something else which you must also know given in the Dell XPS 600 power supply specification above:

Cable, +3.3V & +5V Combined 240W Max.

The BFG nVidia GeForce 9800 GTX Graphic card requires two six pin power connectors from the XPS 600 power supply with two separate wiring. Therefore the combined maximum power that the card will draw is a maximum of 240 Watts. It will not do so continuously only at peak usage requirements.

A word of caution here. This is very useful information that I need if I want install a second identical BFG nVidia GeForce 9800 GTX Graphic card to form an SLI configuration. The XPS 600 Power Supply may not be able to provide the required power for a two BFG nVidia GeForce 9800 GTX Graphic card in SLI configuration for my XPS 600 computer. This may seriously affect the proper operation of the two SLI Cards

I was appalled at some of the ridiculous advice that you were given on the Forum which I looked at when I was searching for the Dell XPS 600 computer power supply specification.

I decided you were entitled to better than that and wrote this for you. I hope that you will be able to read it. If I had your e-mail address I would have sent it to you. If you need further help please do not hesitate to send me an e-mail

With best regards.

Arthur F. Billy, Ph.D., P.E.

__________________________________________________ _______________________

JohnD212, 8800GTX Problem

I bought the XFX 8800GTX this past weekend and installed it in my Dell XPS 600 P4, 3.8 GHZ with 2 GB of RAM. It was installed to replace a pair of 7800 GTX (256 mb each) in SLI Mode. I am not getting any performance boost from this card at all and in fact, find games are running significantly worse. Someone suggested that I should check my power supply. I know my system has a 650 Watt power supply and it recommends 625 or higher BUT now I'm being told to check my 12V rail amperage. I have no idea what this is or really how to check what I have. Can someone point me in the direction of where i should look? Also, any suggestions on good power supplies ( I don't know one from the other) that would offer me more than 650Watts of power and the required 12V rating of 30A? I'm being forced to learn more about this computer then I ever thought I would. Thanks a million.

[Arthur Billy]

April 3, 2008

JohnD212 Lack of Information on the Dell XPS Power Supply to apply to XFX 8800GTX Graphic Card Problem

Hello JohnD212

I apologize for an inadvertent error in my article that I posted on April 2, 2008 on the Forum to help you with your XPS 600 Power supply information problem and the new XFX 8800GTX that you installed. I was inadvertently given the wrong information regarding the BFG nVidia GeForce 9800 GTX Graphic card +3.3V 25A, +5V 30A voltage and amperage requirements.

After I again read the related paragraphs in my article to you of April 2, 2008, given below in italics, I realized that something was not correct. I again called BFG Technical support about it. Indeed. I had been inadvertently provided the incorrect information. The correct information is provided below and in red on the corrected article:

The Dell XPS 600 power supply 12 volt rails provide power to the BFG nVidia GeForce 9800 GTX Graphic card by two six pin PCI-E male connectors P4 and P5 which in turn connect to the female six pin socket on the graphic card. Combined, they need to have a sum of the required amps for the card to receive adequate power of 12 volts 24 amps.

The +3.3V 25A, +5V 30A Rails I mentioned in my article go to the motherboard and not the Graphics card.

Please ignore the old paragraphs given below in italics excerpted from the original April 2, 2008 article. I have corrected the article with the correct information given in red colour.

Given below are the Rail voltage and Amperage combinations that the XPS 600 power supply will provide. I have extracted them for you from the above given XPS Power supply specification

Max, +3.3V 25A, +5V 30A, +12V_A 17A, +12V_B 17A, +12V_C 17A, -12V 0.5A, +5Vfp 2A, 223mm W x 65mm H x 415mm D

Notice that the first two, Max, +3.3V 25A, +5V 30A, are exactly the Voltage and Amperage combinations for the BFG nVidiaGeForce 9800 GTX and the nVidia GeForce 8800 GTS OC Graphics card. Therefore The XPS Power Supply will provide adequate Rail Voltage and Amperage to the cards.

I want to alert you to something else which you must also know given in the Dell XPS 600 power supply specification above:

Cable, +3.3V & +5V Combined 240W Max.
The BFG nVidia GeForce 9800 GTX Graphic card requires two six pin power connectors from the XPS 600 power supply with two separate wiring. Therefore the combined maximum power that the card will draw is a maximum of 240 Watts. It will not do so continuously only at peak usage requirements.

With best regards,

Arthur F. Billy

CORRECTED APRIL 2, 2008 ARTICLE

April 2, 2008

JohnD212 Graphic Card Problem

Hello JohnD212

Yesterday I purchased the BFG nVidia GeForce 9600 GT OC Graphics card and a BFG nVidia GeForce 8800 GTS OC graphics card. I also use a Dell XPS 600 computer. Not for gaming purposes, but for my engineering work and to be able to plot special three dimensional graphs.

Currently I use a BFG nVidia GeForce 7950 GT OC Graphics card with the nVidia driver 93.71 which is functioning beautifully. I wanted a better card. The correct driver is critical to error free operation of my Graphic card. Whoever provides your driver call them, tell them of your problems and have them tell you which is the most stable driver for your card. The latest driver may not be the correct one for you to use. The problems that you have been experiencing may possibly be because of a corrupt or unsuitable driver. These problems are not easy to troubleshoot.

Prior to this, I purchased the BFG nVidia GeForce 9600 GT OC Graphics card using the nVdia driver 174.53 to replace the BFG nVidia GeForce 7950 GT OC Graphics card and nVidia driver 93.71.

I encountered a lot of problems after installing the BFG nVidia GeForce 9600 GT OC Graphics card and nVdia driver 174.53. BFG provided me with excellent free technical support. We worked on the two major problem for about 10 days and could not solve them. No stone was left unturned so to speak to solve the problems. I finally gave up and returned the BFG nVidia GeForce 9600 GT OC Graphics card.

Someone suggesting to you that you check the specifications of your XPS 600 Power Supply and rail voltage and rail amperage gave you excellent advise.

I will explain to you what this means in simple terms and provide you below with the XPS 600 Power supply specification. Calling Dell technical support will not do you any good as it is the epitomy of mediocrity. Dell Technical support today could not even provide me with the XPS 600 Power Supply specification nor the required rail voltage nor rail amperage output.

The most recently released BFG nVidia GeForce 9600 GT OC Graphics card and nVidia 174.74 driver and the BFG nVidia GeForce 8800 GTS OC graphics card with nVidia driver 192.61, that I am planning to install and test on my XPS 600 computer, are very powerful Graphics cards.

Prudence dictates that I must know what the actual voltage and amperage requirements of these two cards are not just what the maximum voltage and amperage given to me on the box they came in. I also must know if the XPS 600 Power Supply can provide the rail voltage and amperage to the two new graphics cards that I am going to install and test seperately.

To answer your question regarding installing another more powerful power supply into your XPS 600 computer than the existing 650 Watt one. The power supply of the Dell XPS 600 is the integral base of the XPS 600 computer. It is not easy to remove and to replace. There is not enough room in the XPS 600 computer case to install another power supply which to the best of my knowledge would be impractical to do. To the best of my knowledge it is the only power supply that Dell provides for the XPS 600 unless the new XPS 720 has more than the maximum 650 watts of the XPS 600 power supply. That is a lot of power. Dell discontinued the XPS 600 computer soon after I bought it at a very high price. That did not endear Dell to me.

The Dell XPS 600 power supply is a DD710 650 W XPS-G6 power supply built by Newton Power Limited, probably a Japanese company. I have not been able to find any contact information for the Newton Power Limited.

The specification of the XPS 600 power supply is given below. N650P-00 is the model number:

N650P-00, 25-DG1767-01, 650W 12V PSU for PowerEdge SC1420, Precision
670, Dimension XPS 2MK, 100-120V/200-240V AC In & 2 6cm Fans on Back Of
Case, 2x12-pin P1 & 2x10-pin P2 on 29cm Cables, 2x6-pin P3 on 21cm
Cable, 2x3-pin P4 on 16cm Cable, 2x3-pin Black P5 PCI-E VGA on 38cm
Cable, +3.3V & +5V Combined 240W Max, +12V_A +12V_B +12V_C Combined 500W
Max, +3.3V 25A, +5V 30A, +12V_A 17A, +12V_B 17A, +12V_C 17A, -12V 0.5A, +5Vfp 2A, 223mm W x 65mm H x 415mm D

I obtained the Specification from Cygnus Supply, LLC in Minneapolis, Minnesota

Charles Hunstiger
Phone: (612) 284-2898 x210
Toll Free: (866) 884-0288
Fax: (815) 331-0891

According to the information on the box, the nVidiaGeForce 9800 GTX Graphics card requires 12 volts and 24 Amps and the nVidia GeForce 8800 GTS OC Graphics card requires 12 volts and 28 Amps. That however does not tell you the whole story. That is were the Rail values are important

Given below are the Rail voltage and Amperage combinations that the XPS 600 power supply will provide. I have extracted them for you from the above given XPS Power supply specification

Max, +3.3V 25A, +5V 30A, +12V_A 17A, +12V_B 17A, +12V_C 17A, -12V 0.5A, +5Vfp 2A, 223mm W x 65mm H x 415mm D

The Dell XPS 600 power supply 12 volt rails provide power to the BFG nVidia GeForce 9800 GTX Graphic card by two six pin PCI-E male connectors P4 and P5, which in turn connect to the female six pin socket on the graphic card. Combined, they need to have a sum of the required amps for the card to receive adequate power of 12 volts 24 amps.

T he 3.3V 25A, +5V 30A Rails go to the motherboard and not the Graphics card.

A word of caution here. This is very useful information that I need if I want install a second identical BFG nVidia GeForce 9800 GTX Graphic card to form an SLI configuration. The XPS 600 Power Supply may not be able to provide the required power for a two BFG nVidia GeForce 9800 GTX Graphic card in SLI configuration for my XPS 600 computer. This may seriously affect the proper operation of the two SLI Cards

I was appalled at some of the ridiculous advice that you were given on the Forum which I looked at when I was searching for the Dell XPS 600 computer power supply specification.

I decided you were entitled to better than that and wrote this for you. I hope that you will be able to read it. If I had your e-mail address I would have sent it to you. If you need further help please do not hesitate to send me an e-mail

With best regards.

Arthur F. Billy, Ph.D., P.E.

__________________________________________________ _______________________

JohnD212, 8800GTX Problem

I bought the XFX 8800GTX this past weekend and installed it in my Dell XPS 600 P4, 3.8 GHZ with 2 GB of RAM. It was installed to replace a pair of 7800 GTX (256 mb each) in SLI Mode. I am not getting any performance boost from this card at all and in fact, find games are running significantly worse. Someone suggested that I should check my power supply. I know my system has a 650 Watt power supply and it recommends 625 or higher BUT now I'm being told to check my 12V rail amperage. I have no idea what this is or really how to check what I have. Can someone point me in the direction of where i should look? Also, any suggestions on good power supplies ( I don't know one from the other) that would offer me more than 650Watts of power and the required 12V rating of 30A? I'm being forced to learn more about this computer then I ever thought I would. Thanks a million.

[Doc]

I started to read all that, lol then i feel :sleep:
Doc

[AJ.]

What the? I would say it's spam but it sounds way to specific to the problem. But what's with the thread digging? :ahhhhh:

[Zirax]

I appreciate the information shared in this thread. I own a 2 year old Dell XPS 600 that was equipped with a pair of 7900GTX cards in SLi mode. This week I ordered a pair of 8800GT Alpha Dog cards to replace the 7900's not even thinking that I might have a problem running them. However, one of the cards arrived DOA so I will not be able to test until I receive a replacement later this week.