Retail Q9650 Overclocking Thread

[Hoss331]

Yea it might just be a compatibility issue with the gskills as my cellshocks also dont have any problems with 2.50A.

[In-Fluence]

Thanks for the helpful responses. I wasn't aware of the 'limits' you've experienced when bumping vMCH at certain speeds. I've not experienced these myself, but assumed 2.50A with PL8 would require more volts. I'm now testing at 1.4v, but with memory in yellow slots so I'll get back to you all. I'lll take the info on board about the mch voltages, but these odd voltage limitations some of you appear to suffer don't seem like an issue with me, but then again my n/b is watercooled which may/may not make the difference. Perhaps it's a rev1.6 thing?

I'm hoping to finally have my EP45 extreme tomorrow, and I've got a few more days off to see what it can do. If it does any better, this will end up being my 24/7 board.

I've been toying with an E7500 (11x multi) for the past day, no records broken but it certainly could take the voltage. I managed 4.95GHz with 1.88v on H2O, but was only benchable at <4.7GHz/1.8v. Temps never went beyond 65°C and coolant didn't even get warm, but I got a bit scared after that. I thought any higher without anything cooler could just fry the chip, particluarly as most others were benching with ss/dice etc with those volts. I'll get thoose pic up on hwbot soon, only worth a couple of points though, if that!

[Hoss331]

My problem with mch and 2.40B are probably just an issue with my particular board, you may very well not have an issue with it or 2.50A. My nb is also water cooled and when I was still benching with 2.40B on the cold nights it would get even more sensitive to mch voltage. Do you know if the extreme has been moded yet? It has no LLC and apparently the vdroop is pretty substantial in unmoded form.

[trickson]

In-Fluence Do you really get 4.2GHz with that voltage ? and just how ? Man mine needs so much juice it at funny .
1.4 Volts For 4.2GHz . Man would be great to get them lower .

[kagula323]

In-Fluence Do you really get 4.2GHz with that voltage ? and just how ? Man mine needs so much juice it at funny .
1.4 Volts For 4.2GHz . Man would be great to get them lower .

Asus motherboards are not so great at quad oc ... u need a Gigabyte EP45-UD3R/P for high clocks with low voltage

[In-Fluence]

Some chips will just clock better than others mate, and as your chip had a VID of 1.25. I would say that's 0.05v higher than mine so the difference in voltage makes sense. FYI the Asus MIIF actually got all the way up to 4.3GHz and it acheived that with lower volts than my UD3P, probably because of the finer GTL tuning options. It's a shame because that all I reckon it needed were 50ps steps in the CPU/NB skews and 500fsb may have been attainable.

Anyhoo, my EP45-Extreme is here at last - not happy about the seller leaving the giant coper heatsink rattling around inside the package with the board, but there's only a couple of scuffs and hopefully there'll be no damage to the components. Will no doubt post back with results later

[andressergio]

Asus motherboards are not so great at quad oc ... u need a Gigabyte EP45-UD3R/P for high clocks with low voltage

+1000000000000000000000000000000000000000000000000 00000 for that

up giga up !!!

[In-Fluence]

Been tinkering with the board today, finally getting stableish at the same volts, unfortunately this board vdroops like nothing I've seen before (like you mentioned Hoss), so I'm popping down to maplin 1st thing tomorrow for a 5k pot. I'm looking at .1v droop from idle to full P95 load! This means I've had to set ~1.52v in bios to try for any stability attempts at 500x9 - idle temps were acceptable, but still uncomfortable for 24/7. Memory overvolts by about .04v too, but runs nicely at 1200/2.03v Hopefully, with the mod, I can begin to finalise my seemingly endless quest for a 4.5ghz/1200MHz rig and setlle down to using it!

*edit - link to my post re: vmod and results
http://www.xtremesystems.org/forums/...postcount=6183

[xguntherc]

Hey everyone.. I was here last week still wishing I could get this ep45.. but I now might be ready to join the 4.5 GHz club. Lol
Fry's electronics I found a open box EP45-UD3P for $79 just missing the I/O shield. I'm seriously thinking about getting it. Thoughts? I no longer have SLI . My GTX 480 will be here tomorrow.

I have a good early batch 1.2500 vid Q9650 doing 4.2 with a nf200 board stuck at 1.35 fsb/vtt voltage and using way more than 1.304v for 4.0 ghz like sig says. It boots with that. But needs much more for stability.. I think I could get much higher with the ud3p. Now might be my chance.

Does anyone know how well my RAM will run in this board? I have a 2x2GB OCZ Blade 1066 MHz kit I could try instead. They are NOT LV tho.

Should I snag this board?

[flesheatinvirus]

I would certainly do it. I had one setup a while back with a 9650 and it was much better then any board to that date for 775 and I have tried them all. Fantastic results with much higher stable fsb clocks for both the 9650 and 9550.

[In-Fluence]

It'll take your quad a fair bit further and possibly with lower volts (and your vcore is not that bad at the moment). UD3P boards are the best you can get for o/cing them, I'd go for it if I were you, they're becoming very hard to get now. If you're willing to fork out a bit more cash, the usb3 version might be up your street and more easily available to the US.

My EP45 Extreme is finally holding my CPU stable at 4.5GHz but it needs a bump in vcore (i.e. 1.475 in bios / 1.45 real). The vdroop mod has really paid off and now it seems to have done better than my UD3P, but this large bump in vcore required to get stable has also knocked temps into the high 70's during a few hours of small ffts - now looking to try and lower it a notch or two and getting a rad better suited to my low-noise fans.

[Jor3lBR]

Hey guys just a heads up that my golden Q9650 is up for sale:

http://www.xtremesystems.org/forums/...d.php?t=249851


......1

[Linuxfan]

Hey guys just a heads up that my golden Q9650 is up for sale:

http://www.xtremesystems.org/forums/...d.php?t=249851


......1

Time to move onto more chips isn't it?
Hope it gets a good home!

[radaja]

Jor3lBR,man i cant believe it.wish i still had me UD3P

[MrDucky]

well i have my own Q9550 that can do 4.25 on 1.264 volts but Seriously if i had the money and didnt had a Q9550 i Surely bought it its a verry nice cpu lets hope it comes into good hands

[NoGuru]

It should be fun to use Jor3's chip, don't expect the same clocks he got though.

[In-Fluence]

It will indeed take quite a push to get it back to those record speeds. good luck with it.

[l0ud_sil3nc3]

having a small problem with getting my setup stable again

I just replaced a broken Rosewill 950w with a Corsair HX750 (I wanted the HX850, but my local microcenter didn't have any in stock) I am constantly getting freezes in Prime 95 blend. I have no stability at any of my other profiles as well.

Also I replaced my lapped TRUE for a Venomous X, but I hardly doubt that would affect any related to my overclock. The 12V rail seems rock solid at 12.3, the 3.3V rail is at 3.25, and the 5V is at 5.1 under full prime 95 blend load.

Any idea's?

[NoGuru]

having a small problem with getting my setup stable again

I just replaced a broken Rosewill 950w with a Corsair HX750 (I wanted the HX850, but my local microcenter didn't have any in stock) I am constantly getting freezes in Prime 95 blend. I have no stability at any of my other profiles as well.

Also I replaced my lapped TRUE for a Venomous X, but I hardly doubt that would affect any related to my overclock. The 12V rail seems rock solid at 12.3, the 3.3V rail is at 3.25, and the 5V is at 5.1 under full prime 95 blend load.

Any idea's?

Sounds like a ram or MCH problem. Give a bump to the MCH, if that fails try and adjust the MCH ref's.

[In-Fluence]

What part of prime blend is failing, large FFTs I assume? Curious you should mention you got a hx750 as I lost a little stability on my old Q6600 about a year back when I changed over to my hx850. Although the PSU runs nice & cool, I'm starting to get suspicious now :s

[l0ud_sil3nc3]

What part of prime blend is failing, large FFTs I assume? Curious you should mention you got a hx750 as I lost a little stability on my old Q6600 about a year back when I changed over to my hx850. Although the PSU runs nice & cool, I'm starting to get suspicious now :s

it freezes within seconds, maybe thirty

I am thinking I may return this ps I just a need a few more days to test.

[In-Fluence]

MCH reference along with VTT and MCH voltages are probably the cause mate, I wouldn't give up just yet. The aforementioned are crucial to stability on this board, and could result in a bootable, but not 'stressable' system. You might even find that your old PSU required the board to give higher voltages, and you might need to compensate/re-tune.

List your settings and perhaps we can offer some more suggestions

[NoGuru]

A quick bench session http://valid.canardpc.com/show_oc.php?id=1151229

[Jor3lBR]

A quick bench session http://valid.canardpc.com/show_oc.php?id=1151229

That's my baby! Told ya it's simple the best

[Musho]

MCH reference along with VTT and MCH voltages are probably the cause mate, I wouldn't give up just yet. The aforementioned are crucial to stability on this board, and could result in a bootable, but not 'stressable' system. You might even find that your old PSU required the board to give higher voltages, and you might need to compensate/re-tune.

List your settings and perhaps we can offer some more suggestions

I switched from a HX1000 to a HX850 and I'm still stable with the same bios settings, so it was prolly something else in your case (unless you got a faulty unit ofcourse). My 5870 actually clocked slightly higher at the same volts AFAIK. Not scientificly tested though. Never did a before/after test, but it felt that way. Might have been a placebo too Overall I'm still happy with my HX850 though