What have i done?? :( Could u give me a hand here?

[ChopSticks900]

i had a read through the most excellent phenom overclocking guide in this forum n couldnt resist having a go with my new Asus M3A79-T Deluxe mobo. With this board i am running the following:

PSU: Hiper type-m silent 580w
CPU: Phenom 9850 BE
GPU: Asus ATI 4850 512MB
RAM: Corsair XMS2 DDR PC6400 800Mhz - 2x2GB

i used the AMD OverDrive utility for this. I changed the cpu core multiplier to 13.5x for all cores taking me up to 2700Mhz. Ithen put the 'HT Ref. Clock' to 204 taking my cpu up to 2754Mhz. It seemd pretty stable here since i managed to run 3DMARK 06 and play game successfully. If i went much higher it became unstable so i left it there.

Now at one point before hand when i had pushed the clock speed up to around 2800Mhz my pc just shutdown when i was running 3DMARK 06. When i rebooted i got a blue screen saying something about one of the cpu clock speeds. I booted windows to find my cpu settings had been reset to defaults.

I changed my settings again n found that my graphics card was running at 92c. I then realized the graphics card fan had completely stopped without any warning! I rebooted my computer n graphics card fan still didnt spin. So i reseated the graphics card in the pci-e slot it n then it worked.

Now, i go back into windows and run a benchmark on 3DMARK 06 and Grand theft auto 4. I run this benchmark with these settings:

Cpu cores all at: 2700 Mhz with 13.5x multiplier
HT link speed: 2000 Mhz
HT Ref. clock: 200
Pci-e speed: 100 Mhz

All above settings are defualt to my knowledge apart from the cpu multiplier.

I also ran at the same settings but with cpu multiplier on 12.5x - 2500 Mhz (default setting).

Both times i got 18. fps average on GTA 4 and 10247 on 3DMARK 06. Earlier in the day with the same 2700 Mhz overclock on the cpu i got 38 fps average on GTA 4 benchmark and scored 11888 on 3DMARK. With the stock settings BEFORE any overclock at all i got 42 fps average on GTA 4 benchmark. Weird huh?

I wondered what was with the low scores and laggy GTA gameplay now. I noticed that on the AMD OverClock utility the PCIe speed kept shifting itself down to very low speeds, as low as 32 Mhz sometimes. Everytime i slid it up, iy just moved itself back down again. Eventually i got it to stay at 101 and once again did my GTA 4 benchmark with both stock 2500 Mhz and overlocked 2700 Mhz cpu speeds. But to my suprise, it made no difference. Still averaging 18 fps, only now i noticed that in the GTA graphics options/menu it says my graphics card had 501 MB of memory instead of 512 MB like it normally says. I dont get how this happened? I did forget to put my RAM in my computer earlier today when i turned it so im not sure if my computer donated some gpu ram to windows, or maybe its something to do with the overclocking that did this?

Whatever it is i just dont know. Im really stuck here and absolutely gutted that ive just crippled the performance of my newly bult pc I kinda wish i just played gta today and didnt bother trying to overclock. Can someone please help me out here i beg you! Im really gutted about this

Thanks for reading!

ChopSticks


btw ive also had some warnings from pc probe 2 today of voltages reaching as high as 3v on the Vcore. I dont see how they would've got this high because i manually set the voltage to 1.2v in the bios, or i just left it on auto which set it to 3v. My cpu is meant to operate at 1.05-3v according to AMD website. since probe 2 just warned me that my mobo just hit 135c even tho its been sitting happily 38c for the last hour. im starting to think it may be an unreliable programme!?

cheers again.

 

[Mondoman]

First, never use any Windows utility for overclocking settings -- do it by hand in the BIOS.
Second, sounds like you've got a problematic fan on your video card. It may be failing again wholly or partially and causing your GPU to throttle down due to overheating. Your graphics card may already be damaged from the previous episodes of the fan not working.
Third, clear your MB's CMOS if you haven't already.

 

[ChopSticks900]

thanks for the reply dude.

i will take ur advice on the method for overclocking in future, ur not the first person to say that!

i think my gpu fan is alright actually. its never done that before or since then. it was just that once when i messed with cpu clock speeds. i think the PCIe speed on AMD overlock went up fromm 100 to 110 at one point to so maybe something to do with that. i did reset the cmos and reinstall graphics card drivers btw. i really hope my graphics card isnt damaged but it seems to be running ok at the moment so i dont get why its apparently got 501mb of ram instead of 512mb? my computer seems to work ok in games at the moment, i think it just has a minor performance decrease because of the lost ram. i just want to get that ram back 🙁

 

[unclefester]

ChopSticks,I have the same MoBo with a 5400 BE. My Graphics Card is in slot #3 on the bottom, so clearing the CMOS is a real pain. AOD (AMD OverDrive) has worked really well for me. I use it as a reference or pre-clock tool, testing scenarios. I can change values until I get a crash. Go back and use the settings 1 or 2 notches before the crash, test for stability. Then go to the Bios and use pre-tested stable OC's.
Not sure about your memory loss. I would try reinstalling the Catalyst. Then run repair Windows/Vista, as you may get lucky and only have dropped a file when your over-clock failed.

 

[ChopSticks900]

inclefester i did try what u said but no luck. i just cant solve this missing memory problem, its so weird. btw, where are the settings u can use to oc the cpu in the bios? i have the latest version which is 0602 i think and all i can find is how to change the cpu voltage and ht link spped. i cant find how to change the cpu multiplier or anything.

 

[unclefester]

To get to the multiplier and memory settings. Go into the BIOS>Advanced>JumperFree (enter) and change AI Overclocking from Auto to Manuel.
The Users Guide that came with your MoBo will show the list of things that this will open up on page 3-16 through 3-28 under the heading 3.4 Advanced menu.

Then you will have a whole bunch of new settings to play with for hours on end. LOL

 

[shiftstealth]

i think you broke it