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    Clevo W870CU Review With ATI 5870m

    Discussion in 'Sager/Clevo Reviews & Owners' Lounges' started by The_Moo?, Mar 5, 2010.

  1. The Revelator

    The Revelator Notebook Prophet

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    I fiddled with the voltage on the 5870m just enough to find out I could. Modified the standard 1.15v down to 1.10v to see if it would accept the change and load the modified bios. It did without incident. I don't understand enough about video card voltages to know how much increase might be needed or safe. Will leave it to you experts. It can be easily done with RBE.
     
  2. ichime

    ichime Notebook Elder

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    I'm trying to get a 9k Vantage GPU score 24/7 stable hence the voltage bump. Wanna see if it has that much raw power for gaming and such. The 10k score and 1000mhz clock would be an added bonus to see if the voltage bump adds to more OC headroom.

    Well just see if you can overclock higher after the voltage tweak. Let's say you were having problems at 900mhz or so. Bumping voltage should give you more space to go higher, though not much.
     
  3. Johnksss

    Johnksss .

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    he seems pretty stable at 9k right now. clocked in at 9500 and he also ran a 9800 gpu score if im not mistaken.

    he seems to have a golden gpu with a 720


    but of course....we await your final out come.
     
  4. The Revelator

    The Revelator Notebook Prophet

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    Well, you don't need 900 core to get 9,000 GPU. I get 9K with 850/1100 clocks. Unfortunately, I have a pansy-@ss 5870 that won't let me go higher, while seeing other people using 900 core settings routinely. That's mainly why I thought about exploring a voltage bump, but have found no useful guidance thru Google as to what increments to use or what the limit is likely to be. Stock is 1.15v. Might just go up .0125 at a time until something dramatic occurs. Any guidance on these matters?

    [​IMG]
     
  5. ichime

    ichime Notebook Elder

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    Well, I 'm really gunning for the 900mhz core 24/7 stable, not so much the score. I'm going for an Eyefinity setup this summer (peripheral vision FTW) so I could use some extra muscle to run the high resolutions. But that is an impressive vantage score using those clocks (850mhz/1100mhz).

    As for your situation, the core can handle 1.2v easily (based from what I've seen with the desktop 5770s), but I would try something in between and test for stability (say 1.18 or like you said in testing in increments). Also, drivers could be another issue that can compromise stability. I haven't been in the ATi game for a while, but I assume Catalyst 10.x would have more headroom since they dropped legacy support for older cards, I don't know which is the best out of those driver series though.
     
  6. Larry@LPC-Digital

    Larry@LPC-Digital Company Representative

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    Now that there has been some benching for a bit, it there any census on what drivers is giving the best vantage scores with 5870m?
     
  7. sp-1

    sp-1 Notebook Consultant

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    What are you using to edit the voltages on your 5870m? RBE does not show any voltage settings for me.
     
  8. The Revelator

    The Revelator Notebook Prophet

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    I just changed the voltage setting in "Clock info 00" where you change the default core/memory clocks (second tab). It works to the extent that you can create a revised bios with increased voltage which can be flashed and accepted, but the results are erratic. I went up to 1.16 to test, but the display seemed laggy for lack of a better word. AMD Clock Tool recognizes the revised voltage in its drop-down voltage box, but clock changes made in Clock Tool will not be accepted. The little downclocking shortcut using Clock Tool no longer works with the increased voltage. So overclocking with the revised voltage is a pain because it requires flashing the bios for each change. For the moment, I flashed back to the stock bios but am not giving up yet. I have no idea what I'm doing here, just stumbling around seeing what happens next.
     
  9. Lafragle

    Lafragle Notebook Guru

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  10. theriko

    theriko Ronin

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    That's not a USB connector, it's a DisplayPort connector (like HDMI, but better). You cannot run 3D accelerated graphics over USB.
     
  11. Lafragle

    Lafragle Notebook Guru

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  12. theriko

    theriko Ronin

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    That is still a DisplayPort -> DVI adapter, the USB is ONLY for power.

    You cannot run 3D accelerated graphics over USB.
     
  13. Johnksss

    Johnksss .

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  14. Lafragle

    Lafragle Notebook Guru

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    so then what is needed? i do not understand, many people said this works for a third monitor
     
  15. Johnksss

    Johnksss .

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    the link i posted...isn't that what your talking about?
     
  16. Lafragle

    Lafragle Notebook Guru

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    yes thats the one im talking about, but what is theriko talking about then? he said it doesnt work?

    do you need a special monitor with a displayport output? because mine just has hdmi and dvi.
     
  17. Johnksss

    Johnksss .

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    not sure either.
    my mini displayport works to dvi or displayport.
    because not all monitors have the displayport port, just yet.
     
  18. Lafragle

    Lafragle Notebook Guru

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    thanks for a fast reply, im googling like crazy trying to figure this out, its new stuff so not much hardware out i guess, gonna search for a monitor. i just wanna play with eyefinity ha
     
  19. theriko

    theriko Ronin

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    The Sager NP8760 DOES NOT HAVE A DISPLAYPORT CONNECTOR.

    You can attach ONLY 2 monitors to it (through HDMI and DVI).

    What you want to do (3 screen eyefinity) is afaik impossible with any laptop.
     
  20. ninja2000

    ninja2000 Mash IT

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    It will be possible on the upcoming envy 17 due out next month. There are a few vids on youtube showing it off
     
  21. Johnksss

    Johnksss .

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  22. k9hydr4

    k9hydr4 Notebook Deity

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    Wow- how is the fps on such setup?
     
  23. ichime

    ichime Notebook Elder

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    In order to run eyefinity (without an external VGA adaptor), you need either three video ports (VGA, HDMI and DVI, mini-displayport; one of each or all, as long as there are three ports capable of outputting HD video), or just one Display Port of v1.2 spec (like what's in the Alienware notebooks and HP Elitebooks). DisplayPort v1.2 allows you to run up to four monitors (each with a max of 1920x1200 res) using one cable connected to the port with the monitors daisy chained to eachother with DP cables.

    The Envy 17 has three ports (VGA, HDMI and Mini DisplayPort) so it can run three monitors both using all three ports or from that Mini Display port with daisy-linked monitors. From what I've seen, The Clevo systems don't have DisplayPort adaptors or three Video outputs, but you can still run two monitors off the machines in Eyefinity (though two monitors is pointless in FPS gaming).
     
  24. sp-1

    sp-1 Notebook Consultant

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    That computer has an XGP port with external discrete graphics attached.
     
  25. dviper84

    dviper84 Notebook Enthusiast

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    Hey man love the pics. i just ordered mine as well. about 2 more weeks till it arrives. i used avadirect. but my question was actually how heavy was the box when it arrived. and also the dimensions of the box. i want to get a nice estimate of what the actual cost of shipping will be and how much the difference between what the company is charging me. thanks man nice review again. how has the notebook been doing. u loving it?
     
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