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xfx780i vs gtx 480

post #1 of 9
Thread Starter 
hi, so bought a gtx 480 recently to upgrade from a 5770 and have not been able to get the gtx to work.
i have a xfx780i mboard which has 3 pcie slots, when 480 is in slot 1/2/3 i get long beep and 2/3 short beeps and no screen output.
when i put 8800gs in slot 1 and 480 in slot 2 i get "card in wrong slot to sli pls move" and have green lights on back of 480.
8800 gs in slot 1 and 480 in slot 3 and get long beep and 2/3 short beeps,no screen output.
sent card back to oc lads and there tests were all passed so something with my motherboard pcie slots and this card.the 8800gs work as does a ati 5770 works in slot but not this ?
im stumped,i have'nt updated bios since first install and see there is 1 genuine update and 1 modded update,should i try the genuine 1 ?
cheers for any help
mel
post #2 of 9
How big is your PSU? as the computer may just not have the juice to power up the card. I'd also check the manual for the board to see if it has an index of the post codes so you can find out what the beeps mean. Also please post your system specs as more people will be able to help you if you do that. wish I could be of more use.
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t7 v2
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t7 v1
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t7 v3
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CPUMotherboardGraphicsRAM
1055T |3.96 GHz| MSI 790FX QuadroFX 540 8GB Gskill Sniper |1600 MHz| 
Hard DriveCoolingOSPower
Seagate Barracuda 250GB Xigmatek Thor's Hammer Ubuntu 11.10 Antec HGC 400W 
Case
Antec 100 
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i7 920 D0 |3.8 GHz| Foxconn BloodRage EVGA 9600GT 6 GB Corsair DDR3 |1604MHz| 
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1TB Caviar Black 24X Sony Optaric Windows 7 64 bit Acer LED 23" |1920x1080| 
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Razer Lycosa Antec HCG 400 Xigmatek Asgard Logitech G500 
Mouse Pad
SteelSeries 5L 
CPUGraphicsRAMHard Drive
Pentium 4 Dual Core 2.8 GHz GTX 480 3GB DDR2 533 2x 80 GB WD 
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Cooler Master Hyper 212+ Cooler Master Hyper 212+ Windows BVista 64-bit Corsair HX 850 
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post #3 of 9
Thread Starter 
sorry for lack o info
850w xfx black edition powersupply
xfx 780i mboard .. cpu q6600 was running at 3.4 but reset to normal
2 hdd 1 disk drive and a soundcard
with the post code it gives an AO but there isnt a ao only an OA in my book which is an :mouse init: intialized the mouse ?
updated the motherboard bios via the nvidia updated to p10 and still nothing long beep + 2/3 short beeps.
why do 2 other cards work fine in the slot but this 1 doesnt ?
stumped
cheers for any input
post #4 of 9
Thread Starter 
motherbump
post #5 of 9
Do you have a friends computer you could try it in?
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AMD Turion ML-42 2.4GHz AMD Turion ML-40 Alienware nForce3 2X nVidia GeForce Go 7900GS SLI 
RAMHard DriveOSMonitor
1GB DDR 333MHz Samsung Spinpoint 250GB Windows XP Professional 1920X1200 Integrated LCD 
Case
Alienware M9700 chassis 
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Core i7 3615QM @2.3GHz Apple Logic Board Intel HD 4000 Nvidia GT 650M 512MB 
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16GB 1600MHz DDR3 500GB Samsung 840  OSX 10.10 1440x900  
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85W PSU Schiit Modi Schiit Magni 2 Über DT770 Pro 
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Intel i7 3770K MSI Z77 Big Bang MPower Radeon R9 270X 4X4GB G.Skill  
Hard DriveCoolingOSMonitor
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post #6 of 9
Quote:
Originally Posted by reflex99 View Post
Do you have a friends computer you could try it in?
+1 where did you get the gtx480 from ?.
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post #7 of 9
Are you using two PCI-e cables to the gtx 480? I'm just saying because the 5770 needs only one, while I bet the GTX 480 requires two.
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My Computer
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Haswell PC
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HTPC
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CPUMotherboardGraphicsRAM
i7 3770K @ 4.7GHz GA-Z77X-UD3H Sapphire R9 290 4x4 GB Mushkin Stealth 2133MHz 
Hard DriveHard DriveHard DriveCooling
Samsung EVO 120GB Crucial M500 480GB WD10EZEX 1TB H100i 
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Win 10 QNIX QX2710 Rosewill HIVE-650 HAF 912 
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Crucial M4 128GB SSD WD Blue 500GB WD Blue 320GB Stock Intel 
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Win 10 QNIX QX2710 Corsair TX650 DeepCool Tesseract 
CPUMotherboardGraphicsRAM
i5 3570K 4.4Ghz GA-Z77X-UD5H Sapphire HD7950 3GB 2x4 GB Mushkin Stealth 1600Mhz 
Hard DriveHard DriveOptical DriveCooling
A-Data S599 64GB SSD Assorted HDDs ASUS 24X DVD Burner Hyper 212 EVO 
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post #8 of 9
Thread Starter 
hi, yeh i got a new powerpack for it and have both plugged in,i bought card from overclockers.co.uk and when i sent it back to them it ran through there tests fine.
i was thinking compatability but i've updated motherb bios to latest bios (p10) and nothing.
i updated bios throught the nvidia bios updater, should i try again with a boot disk to update it ?
ever herad of incompatibilty in cards /motherboards ?
all me mates perfer xboxs and when took it too oldgirl's she only had pci(black) slot in comp. but surely i should be able to trust shop.
i hit a brickwall long time ago now i know not what to try,other than cheep motherboard...
cheers for any input
post #9 of 9
Thread Starter 
when i put card in 2nd slot the card lights up with green lights on back off 480 and screen posts message " card not in sli" so i get a screen but nothing when in slot 1, just long beep then 2/3 short beeps.
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