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Can't get beyond 205 mhz fsb!!!

post #1 of 10
Thread Starter 
Just put this rig together and was really excited to see the OC potential of this chip but I can't seem to get it to go past 205 mhz. I doub the RAM would be limiting it since it is DDR400. The timings are set to by spd (2.3-3-8)since I have no idea how to mess with the timings yet. But just in case, I threw a divider on there and the fsb still wouldn't go past 205. The chip has done 2.4 on 200 x 12 but it can't do 220 x 9. The chip is at 1.45V. What am I missing here?
    
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post #2 of 10
up the fsb voltage ?
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post #3 of 10
fsb voltage? do you mean mobo voltage? have you locked your PCI speeds? that can cause problems, make sure that their locked to 33/66/100 (thats the speeds that PCI/AGP/PCI-e should be at respectivly) whats your vdimm at? also, some mobo's just dont go that high, mine's a VIA, but it wont go above 200 at all.
post #4 of 10
Thread Starter 
The vdimm is at 2.6V. I tried vcore at 1.55 and still get nothing.... Are there any settings I may have overlooked? I would expect that with the NF-7 that I should be able to get higher fsb...
    
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post #5 of 10
Thread Starter 
Also, the agp is at 66 and I couldn't find the pci speeds anywhere in the bios...
    
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post #6 of 10
well i know that on some intel boards the pci-e can give you more headroom for overclocking the FSB, so try raising the PCI-E to 105.

Also try relaxing the time timing to 2.5-4-4-10 see if that gives your room to oc the chip. If it works you can begin to tighten up the timings.
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post #7 of 10
The nf7 does not have a pci-E slot, put the divider to 6:5 then put your multi to 11 and fsb to 200, and go up from there
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post #8 of 10
It took 1.775v for me to get beyond 2600MHz. Keep below 55c... BTW I've never seen 50c.
    
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post #9 of 10
Quote:
Originally Posted by Cheetos316
Just put this rig together and was really excited to see the OC potential of this chip but I can't seem to get it to go past 205 mhz. I doub the RAM would be limiting it since it is DDR400. The timings are set to by spd (2.3-3-8)since I have no idea how to mess with the timings yet. But just in case, I threw a divider on there and the fsb still wouldn't go past 205. The chip has done 2.4 on 200 x 12 but it can't do 220 x 9. The chip is at 1.45V. What am I missing here?

Memory timings at 3 4 4 8, use a divider if you have to. 1.75vcore is the max if it stays below 55c. those cpus are at 166mhz so you might get 210fsb if your lucky.
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post #10 of 10
Thread Starter 
I didn't think that just because the chip is supposed to run at 166 fsb that running it a lot higher but with lower multi would make a difference. I saw somewhere that someone has the fsb up to 240 with this chip. Is there something on the chip that would prevent the fsb from going any higher?

Also, as for trying to push this chip, should I just rely on using higher multis and varing the fsb to the multis then?
    
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