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What in the world is wrong with my 7850?

post #1 of 2
Thread Starter 
Hey guys,

I recently put together another build with an FX-6100 and a 7850 CORE from XFX (the DD was too expensive, sadly its on sale now for $10 more 2 days later... thanks newegg!) After looking around how to pass overclock limitations set by 12.3+ I found my solution, I found many threads saying the GPU ran at 1200 // 1450 Stable no Vcore change and thus I took that risk and set it up that way putting it at 1140 // 1375 , well..I get driver crashes, freezes, furmark freezes... MSI Kombuster does not. The card is on a MSI 97A-G46 the PCI 3.0 Mode is enabled too. FX6100 is on 18.5x for 3.7ghz at 31c idle on stock cooler, the GPU on the OC'd temps are 34c idle 62c load in kombuster after 15 minutes if the driver doesnt loop crash (I have an Evercool FX2 placed under it)

I noticed though, even overclocked I only got 10 fps more on AVERAGE in games like TERA compared to my BFs 4890 AND HE WAS RUNNING EYEFINITY vs. my 1920x1080!! its insane, and now even on stock settings I get random amd driver crashes.


Another side note: My rig and his are the same spec aside from cpu and gpu. We both have the same RAM, on the same timings on the same mobo, the only difference is CPU - FX6 vs FX8 (he disabled two cores during my rage testing) He uses a 7970 Lightning which is RMA so I could only compare it to the 4890 hes currently using.


Are XFX cards binned or something so the "Cores" are generic pieces of lackluster garbage that cant hold steady with the rest of the 7850 crowd... I only got a 7850 and not a 6950 because of all the "wows" with OC headroom to begin with! I just dont know how to approach this.
post #2 of 2
Sounds like what I had going on with my 7970 straight out of the box. Only it started doing it at stock settings and kept degrading the clock settings to keep itself stable. When I tried to clock above the problem I got poorer performance than when I had it at stock settings. You might want to try for an RMA, or better yet, ask customer support if you can pay the difference between the DD card and get that sent for your replacement.
    
CPUMotherboardGraphicsRAM
Intel i5 2500k @4.7 stable Gigabyte Z68ap-d3 Sapphire Radeon HD 7970 @1250/1750 8gb Samsung low profile green series 
Hard DriveHard DriveOptical DriveCooling
500gb, WD caviar blue OCZ Vertex 4 128gb SSD 24x dvdrw XSPC RASA RX360 kit 
OSMonitorKeyboardPower
Windows 7 23" Acer Rosewill RK9000 w/MX cherry black switches PC Power and cooling 950w 
CaseMouseMouse PadAudio
NZXT Switch 810 Cyborg M.M.O. 7 Razer Scarab  Asus Xonar D1 
AudioAudio
Energy Take Classic 5.1 Home Theater Speaker Sy... Sony STRDH520 7.1 AV Receiver. 
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CPUMotherboardGraphicsRAM
Intel i5 2500k @4.7 stable Gigabyte Z68ap-d3 Sapphire Radeon HD 7970 @1250/1750 8gb Samsung low profile green series 
Hard DriveHard DriveOptical DriveCooling
500gb, WD caviar blue OCZ Vertex 4 128gb SSD 24x dvdrw XSPC RASA RX360 kit 
OSMonitorKeyboardPower
Windows 7 23" Acer Rosewill RK9000 w/MX cherry black switches PC Power and cooling 950w 
CaseMouseMouse PadAudio
NZXT Switch 810 Cyborg M.M.O. 7 Razer Scarab  Asus Xonar D1 
AudioAudio
Energy Take Classic 5.1 Home Theater Speaker Sy... Sony STRDH520 7.1 AV Receiver. 
  hide details  
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