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Motherboard only runing 8x pci express slot instead of 16x GA-EX38-DS4

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October 26, 2008 2:49:07 AM

Hello, i'm new here. Nice to meet you all.
People, i have a problem.. i have a GA-EX38-DS4 and a 9800GTX and OCZ PLATINUM 4GB DDR2 @ 1000MHZ and a NOX600W and my GPU is running @ 8x instead of 16x. Both pieces ( MOBO and GPU supports 16x PCIEXPRESS 2.0), what could be the problem?
Tried everything.. format, bios flashin' , windows XP and Vista, new chipset infs, disconnect all the unecessary components to economize power.. and still nothing.. plz help me, can i do something or i have to rma the mobo or the graphic? thx
October 26, 2008 3:38:45 AM

Can you test the graphics card in another box? And how are you reading the PCIE speed? cpu-z or the like?
Do you have the card plugged into a 8x slot instead of a 16x slot?
October 26, 2008 3:56:16 AM

+1 - specially seeing as this is a Crossfire board.
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October 26, 2008 5:02:17 AM

ghmage said:
Can you test the graphics card in another box? And how are you reading the PCIE speed? cpu-z or the like?
Do you have the card plugged into a 8x slot instead of a 16x slot?


The GA-EX38-DS4 does not have a PCI-E x8 slot. There are only two slots where you can physically put a 9800GTX, and both at x16. Here's a photo:
http://www.bjorn3d.com/read.php?cID=1227&pageID=4496

a b V Motherboard
October 26, 2008 5:07:40 AM

sm00thy said:
Hello, i'm new here. Nice to meet you all.
People, i have a problem.. i have a GA-EX38-DS4 and a 9800GTX and OCZ PLATINUM 4GB DDR2 @ 1000MHZ and a NOX600W and my GPU is running @ 8x instead of 16x. Both pieces ( MOBO and GPU supports 16x PCIEXPRESS 2.0), what could be the problem?
Tried everything.. format, bios flashin' , windows XP and Vista, new chipset infs, disconnect all the unecessary components to economize power.. and still nothing.. plz help me, can i do something or i have to rma the mobo or the graphic? thx



If you can RMA the card, do it and get some ATI card, so you can do Crossfire when you need it. I just don't get why you'd buy an expensive X38 and an nVidia card. A SLI MB and an nVidia card makes sense, an X38 and an ATI card too, but a mix not so much.

Apart from that, are you sure you have a problem? Maybe it's just some software bug. Is your performance in games consistent with the benchmarks for a 9800GTX?
October 26, 2008 1:11:23 PM

there's no loss of performance.. but thats that the old story, i have 16x and it's only running at 8x..i like to see all components running at their specifications, no less no more.. bought an nvidia cause i don't trust ATI, they disappointed me a lot of times to pay 200 dollars for ATI GPU Card.. and i bought the X38 chip cause it was the new one chip at that time.. btw i've saw some ATI performances and now with the new HD they worth my money.. maybe i buy 2 hd4780 in a year.
October 26, 2008 1:35:19 PM

the X38 chipset shoud use 16X when only having one GPU hooked up. But when in crossfire it will run at 2 times 8X. The X48 is able to do 2 times 16X
October 26, 2008 1:45:31 PM

col-p-todd said:
the X38 chipset shoud use 16X when only having one GPU hooked up. But when in crossfire it will run at 2 times 8X. The X48 is able to do 2 times 16X



The x38 and x48 both do 16x 2
October 27, 2008 12:27:00 PM

Quote:
...bios flashin' ...

did you try bios settings of the PCIe speed?
!