New build, pci-e port running 2x and bad 3dmark score

Phenom II x3 2.8 stock speed
ASUS m4a79xtd evo Bios 0704
4 gigs ddr3 ocz black edition ram 8-8-8-24 1600 mhz
evga gtx 275 superclocked.
Win 7 64 bit

System was built yesterday and idles at 27 c cpu, 24 c m/b temp. Everything seems fast and responsive in operating sys. games run ok, but not what i expected. I opened up gpu-z to check the settings and it says my pci-e 2.0 slot is running my gfx card at 1x.This was after i cleared the cmos (instructed by asus tech support) which cpuz/gpuz first reported running at 2x.check link below for gpuz readout.

http://gpuz.techpowerup.com/10/03/30/8uw.png

I checked cpu-z and it verified the link width at 1x this time, and 2x before i cleared the cmos. Gfx card is installed in the top pci-e slot. I put it in the bottom slot to test and it read the correct 8x speed, then i moved it back up to the top.

I called asus tech support and they said its running at 16x if its in the top slot, but they gave me no suggestions on how to verify this, and they said cpuz and gpuz was wrong, well then i found this discovery.

To check and see if cpu-z and gpuz was reading this wrong i did a benchmark with 3dmark vantage trial version and recieved the following scores.

P10400
cpu score 27785
gpu score 8605.

I have the latest drivers installed for the vid card. Now doesnt that seems low for a evga 275 superclocked? i compared similar systems and gfx cards and most people score much better.

Can someone please help me? i can give me e-mail if its easier. any help thank you in advance.
6 answers Last reply
More about build port running 3dmark score
  1. Well, I wouldn't know how to fix the problem, although I suggest you just use your GTX 275 SC in the 8x PCI-e slot, it most likely won't affect your graphic card's speed even if you had it in a 16x PCI-e slot, because even HD 5870s aren't bottlenecked on 8x PCI-e slots.
  2. I plugged the card back in to the 8x 2nd pci-e 2.0 slot and rebooted... cpuz/gpuz now showes 8x... re ran 3dmark vantage, and here was my results

    P13889
    cpu 36345
    gpu 11517

    considering the improvments, this leads me to believe the asus techs who told me cpuz/gpuz was wrong, and yet, they had no way to substantiate my problem, leads me to believe they are noobs. they would rather have me just rma the board, but im on a budget, so i will just deal with 8x vs 16x. im happy with my new 3dmark score.

    I just wish i could figure out why the primary pci-e slot runs at 1x... it baffles me.
  3. atsports said:
    I plugged the card back in to the 8x 2nd pci-e 2.0 slot and rebooted... cpuz/gpuz now showes 8x... re ran 3dmark vantage, and here was my results

    P13889
    cpu 36345
    gpu 11517

    considering the improvments, this leads me to believe the asus techs who told me cpuz/gpuz was wrong, and yet, they had no way to substantiate my problem, leads me to believe they are noobs. they would rather have me just rma the board, but im on a budget, so i will just deal with 8x vs 16x. im happy with my new 3dmark score.

    I just wish i could figure out why the primary pci-e slot runs at 1x... it baffles me.


    Check some of the advanced chipset settings in BIOS. I've seen some that allow you to manually set the PCIe x16 slots at x4 or x1. It's probably not your problem, but it doesn't hurt to look "everywhere".
  4. I already looked all throughout the bios, and also asked asus tech support... no luck... i still cant explain the original problem.
  5. UPDATE: The only thing i could find that looked remotely close while looking in the bios for the 20th time, was HT link width. it was set to AUTO. there were options of 4 bit all the way to 16 bit... but the HT is something else correct?
  6. atsports said:
    UPDATE: The only thing i could find that looked remotely close while looking in the bios for the 20th time, was HT link width. it was set to AUTO. there were options of 4 bit all the way to 16 bit... but the HT is something else correct?

    Correct. That's the link from the CPU to the chipset.
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