Q9650

CaseyChaos · 19 May 2009 at 16:17

Got one today and it would happily overclock to 3.5Ghz (390x9) stock volts but I have an issue where my wireless network only has limited connectivity, I clock down to 3.4Ghz and everything is fine :confused:

Any ideas?

Plec · 19 May 2009 at 16:37

Do you mean you have a wireless card in one of your pci slots and your rig is losing connection when clocked @ 3.5GHz?

If you do, you could try manually setting the pci frequency in the BIOS just in case it's being indirectly affected by the increase in FSB.

CaseyChaos · 19 May 2009 at 16:41

no it's a USB wireless stick. Working fine sat at 3.4Ghz now. If I go to 3.5Ghz I just can't get it to connect to the router. System is perfect other than that. I was hoping to get to 3.6-3.8 as I'm only on air but until I sort this issue there's no point carrying on futher.

Angst · 19 May 2009 at 16:49

have you put spread spectrum on?
if not that could be your problem

Plec · 19 May 2009 at 16:52

May be worth listing your spec for others to look at - and trying the above.

If money isn't an issue - my immediate reaction would be to ditch the dongle for a wireless pci card - you would have better connectivity and probably resolve your problem. (It's a bit brutal as a solution but it may be worth looking at if you can't resolve your problem any other way.)

CaseyChaos · 20 May 2009 at 00:00

Shuttle SG33G5, I know it's not the best for clocking but I've seen people get a Q9650 to 3.8 with one of these.
Q9650
8800GS
4GB Corsair XMS 400mhz (2x2GB) will happily do 417mhz at stock volts, it's now set to 380mhz.

Right a friend said to me that I'm most likely stressing the southbridge too much and I've now set the volts up one step on the 1.05v and 1.5v settings. I'm now running at 390mhz x9, 3.51Ghz. So that appears to have fixed my problem but is it safe to stick the volts up on the south bridge?

Plec · 20 May 2009 at 00:18

Glad to hear you got it sorted - and nice find by your friend.

I would have thought only going up the 'one notch' it should be fine - even if it hasn''t got a HS on it.

It's not something that ppl up that much - they usually abuse the NB voltage and that's never an issue so i don't see why the SB should be any different - especially when it's such a minor bump.

CaseyChaos · 20 May 2009 at 00:26

Yeah currently running prime95 on it, full cores are leaving me temps of about 55-60 which in a shuttle is ok, idles at about 36-38.

He says it has to do with the extra FSB being pumped into it, that's making the southbridge freak out and that's why the USB's start playing up, On his last board the southbridge popped so he speaks from experience. He also told me to have a look at my voltage rails but they are looking the same as when it was at stock.

It was a good find by him considering I only sent one text explaining my issue lol. Like you say not many people really play with the southbridge they concentrate on the northbridge so hopefully my experience with come in handy for someone else someday.

Plec · 20 May 2009 at 00:38

I've certainly logged it - it's an interesting solution and one that may be able to be applied to other odd behaviour due to clocking.

Thanks for the added info - hope your system continues to stay stable.

CaseyChaos · 20 May 2009 at 00:48

Yeah could be a solution to a few peoples overclocking problem when they think they've hit a wall and can still get a bit more out of a chip.

30mins still working fine, overnight job and that should do it.