Some 'retro' 939 overclocking

PiKe

PiKe

PiKe

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Got an Arctic Freezer 64 today so fancied seeing what my Manchester X2 4200+ could do, managed 230*11 without moving off stock volts, then 240*11 at 1.41v but that's where I hit an invisible wall, I was trying for 2.75ghz which would have been 250*11 but it's not having it. I tried up to 1.45v but it was still freezing within seconds of starting IBT.

I thought it might be the motherboard (A8N Sli Premium) so I dropped the multiplier to 10 and kept the fsb at 250mhz, IBT ran fine, so it's not the motherboard, is what I'm seeing with the chip pretty normal?
 
It is 100% stable at 240*11? Prime? etc?

Give 245 at go, you may find that you have reached them limit of your chip they were a bit more of a luck pool than newer chips these days.

Still 2.2Ghz --> 2.64Ghz is still a good increase IMO :)
 
gamesaregood said:
It is 100% stable at 240*11? Prime? etc?

Give 245 at go, you may find that you have reached them limit of your chip they were a bit more of a luck pool than newer chips these days.

Still 2.2Ghz --> 2.64Ghz is still a good increase IMO :)
Click to expand...

Yeah it's 100% stable, ran IBT on maximum and it passed, think I'm going to leave it as it is, the extra 50mhz isn't worth the extra voltage.
 
PiKe said:
Got an Arctic Freezer 64 today so fancied seeing what my Manchester X2 4200+ could do, managed 230*11 without moving off stock volts, then 240*11 at 1.41v but that's where I hit an invisible wall, I was trying for 2.75ghz which would have been 250*11 but it's not having it. I tried up to 1.45v but it was still freezing within seconds of starting IBT.

I thought it might be the motherboard (A8N Sli Premium) so I dropped the multiplier to 10 and kept the fsb at 250mhz, IBT ran fine, so it's not the motherboard, is what I'm seeing with the chip pretty normal?
Click to expand...

What's the HT multiplier set at? You want to keep the HT link speed under 1,000MHz so 4x is fine for up to 250MHz FSB but you want to drop it down to 3x if you go higher than that.
 
It's on a 3x multi as I'd read about keeping it under 1000mhz before I started overclocking the chip :)
 
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