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x1900 not running 16X


New Member
Nov 18, 2007
1 (0.00/day)
For some reason I can't get my Mobo to run my card at 16X, its holding steady at 8X, when I go into my bio's its set to 16X I don't get it. What can I do it fix this issue?

AMD 64 3000+ (Socket 939)
Windows XP Home SP2 (fully update)
PCIE ATI Radeon 1900 (fully updated drivers)
SB Audigy (fully updated drivers)
EVGA NF4 SLI edition mobo (bios updated, drivers updated)
2gb DDR 3200
500w PSU (cant recall the model but a good quality aftermarket PSU)

Of course updated everything on my system, audio drivers, modo bios and drivers, graphics card drivers, windows OS. Nothing changed. We checked for spyware, virus's, and so on.


New Member
Sep 13, 2005
97 (0.02/day)
Processor Newcastle 3200 @ 250*10
Motherboard Abit KV8 Pro v1.1
Cooling XP90 +4000RPM 92mm
Memory 2*512MB Corsair Value PC3200
Video Card(s) XFX 6800GT POS Edition
Storage 160GB Seagate
Display(s) 17" LG CRT something
Case Big, silver Chieftec thing
Audio Device(s) Terratec Aureon 5.1 FUN
Power Supply Hiper Type R 580w
Software Games, games and Adobe Audition
Which slot are you using? I had a quick look at a review of that board and it said that the two yellow slots run at 8x for SLI and the blue slot in the middle is 16x for single card setups.


Sold my stars!
Jul 16, 2007
9,595 (2.52/day)
Processor Amd Athlon X2 4600+ Windsor(90nm) EE(65W) @2.9-3.0 @1.45
Motherboard Biostar Tforce [Nvidia] 550
Cooling Thermaltake Blue Orb-- bunch of other fans here and there....
Memory 2 gigs (2x1gb) of patriot ddr2 800 @ 4-4-4-12-2t
Video Card(s) Sapphire X1950pro Pci-E x16 @stock@stock on stock
Storage Seagate 7200.11 250gb Drive, WD raptors (30/40) in Raid 0
Display(s) ANCIENT 15" sony lcd, bought it when it was like 500 bucks
Case Apevia X-plorer blue/black
Audio Device(s) Onboard- Why get an sound card when you can hum??
Power Supply Antec NeoHe 550-manufactured by seasonic -replacement to the discontinued smart power series
Software Windows XP pro SP2 -- vista is still crap
Note the 3 PCI Express full-length slots above. The top and bottom yellow slots are PCI Express x8 (for SLI configuration) and the blue one in the middle is a PCI Express x16 (for single card non-SLI use).
make sure that the card is the in the middle (blue) PCI E slot.

Welcome to the forums :toast:


New Member
Dec 8, 2007
4 (0.00/day)
I got the same problem, 8800Gt wont run in x16 in P5k-E MB, I dont know if it is a defective MB or Video card
Aug 9, 2006
1,003 (0.24/day)
System Name [Primary Workstation]
Processor Intel Core i7-920 Bloomfield @ 3.8GHz/4.55GHz [24-7/Bench]
Motherboard EVGA X58 E758-A1 [Tweaked right!]
Cooling Cooler Master V8 [stock fan + two 133CFM ULTRA KAZE fans]
Memory 12GB [Kingston HyperX]
Video Card(s) constantly upgrading/downgrading [prefer nVidia]
Storage constantly upgrading/downgrading [prefer Hitachi/Samsung]
Display(s) Triple LCD [40 inch primary + 32 & 28 inch auxiliary displays]
Case Cooler Master Cosmos 1000 [Mesh Mod, CFM Overload]
Audio Device(s) ASUS Xonar D1 + onboard Realtek ALC889A [Logitech Z-5300 Spk., Niko 650-HP 5.1 Hp., X-Bass Hp.]
Power Supply Corsair TX950W [aka Reactor]
Software This and that... [All software 100% legit and paid for, 0% pirated]
Benchmark Scores Ridiculously good scores!!!
You are not missing much, unless you do some severe 3D modeling, animation, or similar work.