Retail Q9650 Overclocking Thread

[AgentGOD]

Naa, I seen average of about 1.25v-1.28v for most on here.

The post the other day with 1.15v on air is exceptional.

Increase PLL Voltage and it should let you lower VCore, try 1.55v PLL for safe start.

What's the maximum safe CPU PLL Voltage? I have no experience with Yorkfield, only Kentsfield :P

[humeyboy]

Well too much PLL Voltage like VTT Voltage (FSB Termination Voltage) can kill a CPU.

Your Mobo has a default PLL Voltage of 1.50v, it turns Yellow at just above 1.60v (Text in Bios and LED on Mobo if you set it for PLL instead of VCore).

Set it to 1.55v which is very safe and try lower VCore.

I have read peeps saying different limits for safe PLL Voltage on these CPU's but 1.60v should be still ok.

[AgentGOD]

I tried bumping the PLL to 1.60v, and I still couldn't lower the vcore without losing stability in IBT

[humeyboy]

Bummer must need the VCore then, PLL overall is for higher MHZ with lesser Voltage but you may be needing more VTT for your current FSB.

Also the GTL's are very important to stableness and you may be able to lower voltages then.

I had no luck with my Quad on this Mobo at even 400-425FSB till I set the NB GTL and I have found my CPU GTL's and NB GTL are stable at + values, the NB wont boot at - values.

With my above Voltages (ignoring VCore and PLL as not important to what I am talking about) I have set all 4 CPU GTL's and the NB GTL to +40.

I calculated this not guesswork, easy since both VTT and NB are set to same Voltage.

[AgentGOD]

The P5Q Deluxe uses ratios instead of +/- values (ex: 0.630x, 0.670x) for GTL references.

[TooFastForYa]

So how would to guys recommend switching over to water? Any good complete setups, or build piece by piece?

[AgentGOD]

So how would to guys recommend switching over to water? Any good complete setups, or build piece by piece?

If you want good water cooling, you should build one yourself.

[andressergio]

If you want good water cooling, you should build one yourself.

AgentGod

as you have a high vid probably you'll need more vcore that any other chip but if temps are not so high (i mean on 24/7) not IBT then its ok...also its important the GTLS on the CPU and MCH so the VTT

But on a 1,25+ vid you will need mostly more vcore...

Cheers
Sergio

[xguntherc]

Hey guys, Long time No see.. How is everyone.

I Finally got a EP45.. time to see what this Q9650 can really do on a good board instead of my 750i.. lol.

Question, Does ANYONE have a Q9650 they'd like to Sell. I'm looking for a used Q9650 to buy, as I'd like to have another one. I might get a Q9550 since the E0's are now $219 New at the egg. but I want the Q9650.

Also, I might be buying one from Ebay, or another forum if I can find what I want. So I'm wondering if any of you guys like Napalm, and Andressergio, or others that have followed this thread from when it had 30 pages.. Could tell me from what they have seen to be the best batch #'s and VID's for the Q9650. I know almost all the 45nm Q9650's are good performers. but I've noticed that the lower VID ones clock higher, but run warmer, and the higher VID's still clock good, but run cooler. But this could be wrong..

Any info on Batch# and VID's for the Q9650's would be great. as I want to get another soon.

[Jor3lBR]

I might get a Q9550 since the E0's are now $219 New at the egg.

Check Deals thread: Q9550 for $170 @MicroCenter

[LennyRhys]

I might get a Q9550 since the E0's are now $219 New at the egg.

Nooooo don't... I got one of the newer E0s and it's nothing like what you see here - 1.4v for 4GHz and no less than 1.3v for 3.6GHz or I get blue screens and random restarts.

If I'd known this before buying it, I'd have gone for a preowned Q9650 from the outset.

And 1.15v for 4GHz stable is just crazy, seriously

[xguntherc]

I know, I don't have a damn microcenter near me or I'd have got one already.. but thanks!

[Hoss331]

I hold the record for highest VID @ 1.2750v (1 week old CPU).

Not quite, theres a guy on here that has a 1.30vid, cant remember his name right now.

The P5Q Deluxe uses ratios instead of +/- values (ex: 0.630x, 0.670x) for GTL references.

Can you post a template of your full settings? I have a Dlx also.

[OC Nub]

I know this belongs in the liquid cooling section however, the guys that are running q9650's on water... what is your setup? I have no idea what to order. Im on vacation next week. My plan is to order parts tomorrow and start on it this weekend if possible. I would like something good but not toooo expensive, around $300.00 tops. Is it even doable for that price?

[Hoss331]

I pieced my kit together but this kit is basically what im using and under 300.

http://www.petrastechshop.com/pecoel.html

[OC Nub]

Nice, thanks Hoss. is this where you ordered from?

[AgentGOD]

Can you post a template of your full settings? I have a Dlx also.

http://img3.imageshack.us/gal.php?g=image006vsh.jpg

[Hoss331]

Ive ordered some from Petras, Sidewinders, and FrozenCPU.

[Hoss331]

http://img3.imageshack.us/gal.php?g=image006vsh.jpg

You may not be able to go much lower with that VID but try, 1.54pll (if I recall 1.50 would overvolt), 1.26vtt, both cpu gtls at .635, nb gtl you can probably still leave on auto for now but try .665 if you want. See if that stays stable then try to lower vcore a little more.

[AgentGOD]

I tried as high as 1.60v PLL.. it didn't help reduce vcc.

[Hoss331]

Im not saying it will, just that 1.50pll and auto used to overvolt. Try the gtl settings.

[AgentGOD]

Im not saying it will, just that 1.50pll and auto used to overvolt. Try the gtl settings.

Tried it, still spat out errors at 1.2875v.

[xguntherc]

I'm running the Apogee GTZ with a Feser TFC 360 Rad, and a D5 Vario pump.. that is one of the better setup's unless you want a better pump, or a better cpu clock like the Heat Killer 3.0, but for Solid performace and decent price, the GTZ and the D5 and a Feser rad are a solid bet. you could go cheaper with a TC PA120.2 or 120.3 radiator, but i really like the feser, or get a XSPC RX Rad as well. good luck.

Also, will some of you Q9650 owners post your Batch #'s and VID's. as I'm about to get another one and I'm trying to choose a good one by batch number. I'm wondering if the older (First released chips) will be better, just like the first Q6600's are better than the latest ones that have high VID's. as I was offered a L844B Q9650 for a GREAT price, but it's a recent batch number, I guess there's no way to guess the VID tho.

I also got offered a L845B, you guys know of some best chance batch numbers?

[AgentGOD]

Mines an L845B, does 4 GHz @ 1.3125v 100% IBT stable. VID is 1.2750v.

[xguntherc]

oh wow... so you have a L845 and it has a 1.27 VID.. scary, sounds like it still clocks just fine tho. 4 Ghz with 1.31v is fine with me.

hm.. well I got offered a L844 for $260 shipped with he thinks is a 1.25 vid. so i might take that, not sure yet tho