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About algorhythmic

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  1. SLI Nightmare

    I dunno about the other games (I assume not) but FEAR certainly has VSync disabled..
  2. SLI Nightmare

    yup bridge installed
  3. SLI Nightmare

    There isn't one on the A8N32-SLI Deluxe
  4. SLI Nightmare

    Hi, I'm having real problems with my SLI rig. Basically the thing is behaving like a single gpu system. First some specs: AMD Athlon(tm) 64 X2 Dual Core Processor 4800+ ASUSTeK A8N32-SLI-Deluxe Motherboard Corsair Corsair TWIN2X1024-3200C2 - 2Gb (2x 1024Mb) Enermax Liberty 600W PSU Dual Leadtek WinFast PX7800 GTX TDH (256Mb) with Arctic Cooling Silencers (5rev3) installed Western Digital SATA Raptor Creative SoundBlaster X-Fi Elite Pro PLEXTOR DVDR PX-716A DVD Burner Antec P180 Case (front-middle hdd fan intaking at low at rear-cpu-level fan out at medium) Needless to say that all the drivers are up to date and that Multi-GPU rendering is enabled. I have Arctic Cooling Silencers (5R3) installed on both graphic cards and these idle at 42deg (GPU1) and 37deg (GPU2) the difference in temperature no doubt due to their position within the case. The CPU and Motherboard are both between 35deg and 40deg. When running F.E.A.R., HalfLife2 and Quake4 at full detail and resolution, I notice that GPU1 can go up to around 60deg but GPU2 remains at 38deg. Also my overall 3DMark06 score is 4323, which according to ASUS support is way too low (should be around 7000, which I confirmed checking similar configs). Again when running 3DMark06 I notice that GPU1 heats up but GPU2 doesn't. At first I thought maybe something was wrong with the second graphics card but upon swapping the two on the suggestion of Leadtek's technical support, GPU1 (formerly GPU2) climbed to around 62deg and GPU2 (formerly GPU1) remained around 36deg. I tried find some kind of demo which would prove that SLI isn't active despite (rather than simply basing myself on GPU temperature readouts) but couldn't find anything. Interestingly the only game for which I can see the load balancing readout (world of warcraft) suggests that the rendering load is equally distributed but this again goes against my gpu temperature readouts. So my question to you is what the heck is going on? Is something wrong with my motherboard? I'd rather exhaust every possiblity before taking this thing back to the company I bought it from (in seperate parts which doesn't make returning it easier it would seem) so if anyone has any bright ideas (configuration, further testing, etc..) I'm all ears. Many Thanks in advance
  5. To water cool or not to water cool

    It looks like I'm going for the Anec P180 however I heard (and read but it's in French so I won;t post it) the Enermax Noisetakers have slight flaws. I was thinking of going for the Enermax Libery 620W as long as the cables reach (the P180 has an unorthodox PSU configuration)
  6. To water cool or not to water cool

    Haven't added it up (plus there have been some changes - better mother board). I'll post it when it's final.
  7. To water cool or not to water cool

    gah I'm getting even more confused now :(
  8. To water cool or not to water cool

    Well I don't intend to overclock at all and I believe the a8n-sli premium has a heatpipe system. So I assume I just need a ventilator for the 64x2 and a few for the box. I was thinking of a coolermaster cavalier t03 but I'm not sure how many fans that's going to need..
  9. To water cool or not to water cool

    Exactly what I keep thinking.
  10. To water cool or not to water cool

    Hi, I'm finally getting a new PC (specs below) and this time I'll be building it myself (no more DELLs for me!). I've got pretty much everything covered except for the actual box and the issue of cooling. Some people recommended getting a water cooling system but I'm not sure. Any advice/recommendations would be most appreciated (included normal heatsink/fan setup advice cos I'm pretty clueless as to what I need to keep this setup reasonably cool). Specs: AMD Athlon 64 X2 4800+ Asustek A8N-SLI Premium – Socket 939 Corsair DDR-TWINX (2x1024) PC3200 (CL2) [Ref : TWINX2048-3200C2] Seagate Barracuda 7200.9 300Go 16Mo Cache [Ref : ST3300622AS] Asus GeForce 7800GTX 256Mo DDR3 VIVO [Ref : ASUS_EN7800GTX/2DHTV] (possibly x 2) Creative Sound Blaster X-Fi Elite Pro Graveur DVD NEC ND4550 DVD+R/RW + DL PSU Enermax Noisetaker 600W [Ref : EG701AX-VE(w)] Many Thanks
  11. Tom Miller's Game Loop An implementation of the above
  12. I'm using the Miller approach for my windowed dx app but it uses 95% cpu even when minimized and with the entire game loop commented out. What to do??? Cheers
  13. Guru of the Week

    Of course. How stupid of me not to see it. I thought it would be some stupid omission. Thanks for the answers in particular Enigma's.
  14. Guru of the Week

    From what I understood a float/double can implicitly convert to complex<double>.
  15. Guru of the Week

    Hi, My C++ is a bit rusty so I was browsing through GOW and came across this. #include <iostream> #include <complex> using namespace std; class Base { public: virtual void f( int ) { cout << "Base::f(int)" << endl; } virtual void f( double ) { cout << "Base::f(double)" << endl; } virtual ~Base() {} }; class Derived: public Base { public: void f( complex<double> ) { cout << "Derived::f(complex)" << endl; } }; void main() { Base* pb = new Derived; pb->f(1.0); delete pb; } (from http://www.gotw.ca/gotw/005.htm) Apparently this results in Base::f(double) being called but I just don't understand. I don’t see why pb->f(1.0) calls the base version of f() despite the base pointer pointing to a derived object. The other f()s are hidden aren’t they? I don’t quite see what he means by “overload resolution is done on the static type (here Base), not the dynamic type (here Derived)”. Why is this the case? Any help would be most appreciated. Thanks
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