overclocking advice for q9650

Slinkie

Slinkie

Slinkie

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Joined
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hi folks,

Currently trying trying to get my q9650 to as high a clock as possible. I got it to 460 x 9 stable but can't get it any higher.

I knocked the multi down to 8 and have managed to get it to post at 500fsb but it wasn't stable and prime failed. I now have it running prime at 489 x 9 using pretty much the same settings as 460 x 9

It seems pretty stable at the mo but what I need to know is how I can get the CPU running at 489 x 9

My specs are

Q9650
Asus p5q-e with latest bios
4 gb ocz 1066 ram
custom water cooling

The settings in the bios are (I know some are high but I am trying to get it stable, once I'm there I'll start knocking them down to find the lowest stable setting)

Ratio 8
CPU ratio 489
fsb strap 333
dram freq 979

Voltage 1.4
Gtl voltage (0/2) 0.625
Gtl voltage (1/3) 0.665
CPU pll 2.00
fsb termination voltage 1.78
dram voltage 2.2
nb voltage 1.6
nb gtl ref 0.6
sb voltage 1.2

Load line calibration -enabled
CPU spread spectrum - disabled
pcie spread spectrum - disabled
CPU clock skew 200ps
Nbclock skew 100ps

What do I need to do to get 9 x 489?
 
Is your PLL really at 2.00v? And your FSB Term at 1.78v?

Because both those will kill your CPU. Recommended voltages for 45nm chips - max PLL is 1.6v and max FSB Term is 1.4v.

You will probably need more than them to get 500mhz Prime95 stable, but no-where near the levels you currently have. I'll try to find the PLL and FSB Term settings I needed to get my Q9450 stable at 500x8.
 
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I'll reduce those now, to see if its stable. I just want to hit 4.3 at least. My old q9550 was stable at 4.2 and just needed a bit more tweaking to get it rock solid at 4.3 but my board died.

I got a q9650 when I got a new board thinking 4.3 or 4.4 would be fine but I can barely just cleary 4.1
 
For 500x8 I needed 1.6v PLL, 1.62v FSB Term and 1.58v NB. I can't see you needing to stray too much from them for 500x9. PLL will probably need a boost, but not anywhere near 2v. FSB Term is well above the recommended level, but I dropped the chip back to 3.8ghz at far lower voltages for day-to-day running anyway. The GTL's needed some severe tweaking, but mine would be useless to you anyway as they are different for every chip.
 
Can I ask what process you went through to get the GTLs sorted? I think I just stumbled across mine but I kept finding formulas etc on the net to try and none of them worked, I just don't know the best way to go about it. I know your GTLs won't work with my CPU and board etc it's just how do you know whether to higher them or lower them etc?
 
Trial and error. There's no other way to do it.

They should be somewhere between .60 and .72
 
I've given up, been sat here for 2 hours constantly tweaking but can't get anywhere near stable. This is for 4.3. I've decided to stick to an easy 4ghz. I can leave nearly everything on auto except a small bump on voltage.

I can't believe I went from a q9550 at a solid 4.2, nearly 4.3 stable to a q9650 that struggles to do more that 4.15 totally solid

Its probably the board more than the CPU, my new board being an asus p5q-e from a dfi lanparty matx board

Gutted :-(
 
Only just found this post now
You told me you never had VTT over 1.3v, before you sold me this cpu, now I see you have had it at 1.78v.
You have probably ruined it and then offloaded it to me on the members market.
 
It's perfectly fine, It won't have run at that for more than an hour or so. I wouldn't have sold it if it was dead. I didn't realise I had put that much through it it was an honest mistake. That's not what it ran at when I had it stable at 4ghz.

If you really aren't sure about it send it back to me and I'll refund your money, it's not a problem. The trust for the members market is there for a reason for you to use you know.
 
That is crazy VTT for a 45nm quad how could you not realize that, thats probably why you cant overclock it any higher.
I did see your trust was good, so I will take it as a honest mistake, you know what VTT is now though.
 
Nope, that's not it at all. My current CPU (Q9550) used was running at 4.2 stable and hit 4.4 into windows. In my current set up the highest I got it stable was 3.95.

It's deffinately the motherboard holding me back. You can see from the thread below that I reduced the VTT etc straight away.

What I don't like is being accused of ripping someone off before they have even received the item. It's unbelievable.

I'd prefer it if you just sent the item straight back to me and I'll refund you the money, I guess you didn't check the trust system or want to use it in the first place. You can see that people have been more than happy in the past to receive graphics cards, mother boards, cpus etc.
 
Banny please can you email me at [email protected], I am trying to email you regarding this issue but your email address in your trust is not working for me. I get the following;

This Message was undeliverable due to the following reason:

Your message was not delivered because the Domain Name System
(DNS) for the destination computer is not configured correctly.
The following is a list of reasons why this error message could have been generated. If you do not understand the explanations listed here, please contact your system administrator for help.

- The host does not have any mail exchanger (MX) or
address (A) records in the DNS.

- The host has valid MX records, but none of the mail
exchangers listed have valid A records.

- There was a transient error with the DNS that caused
one of the above to appear to be true.

You may want to try sending your message again to see if the problem was only temporary.

DNS for host banjo18.freeserve.co.uk is mis-configured.

The following recipients did not receive this message:

<[email protected]>

Please reply to <[email protected]> if you feel this message to be in error.
 
Setting PLL and VTT to those levels can instantly kill a cpu. Those settings are just as, if not more dangerous than standard vcore. However, if the CPU is not reporting errors now it's unlikely much, if any damage has been done.
 
It's weird how the board I had those settings on (the asus p5q-e) did show them as high voltages (the voltages turn from white to yellow and then yellow to red).

The post was created on Sunday and since then I had ran the CPU at the 4Ghz since then (hence this post on the Tuesday http://forums.overclockers.co.uk/showthread.php?t=17977817)

I took it out of the pc when the for sales thread was created when I swapped it for my old Q9550 but can understand if Banny wants his money back.
 
Different BIOS revisions will show different voltage levels as dangerous etc. Tbh though I prefer to trust feedback from enthusiasts than what Asus etc say is 'safe' or not.

Many CPU's have had high voltages put through them. My old Q6600 ran a 4ghz 24/7 with 1.6v through it and is still going strong to this day to the best of my knowledge. Some others will degrade with that vcore. Every chip is different, every chipset is different, some can take abuse others cannot.

Tbh tho m8 you were crazy to think a Q9650 would give much more than 4ghz let alone 4.2 and if banny is getting those clocks I would certainly not be asking for a refund, even with the extra info that has come to light.
 
I don't think it's crazy to expect more that 4ghz from a Q9650. My Q9550 was rock solid at 4.2

42.jpg


I thought with the extra .5 mulit I could go higher. However it turns out my new board isn't the best (or is a bit complicated to overclock with) as now I can't get my Q9550 rock solid at 3.9.
 
I have recieved mail from you slinky and I did say it was an honest mistake, all I was pointing out was that you told me you had only put 1.3v VTT through it.
The cpu is fine and I have left trust to say this.
I wasn't being out of order was just stating facts that you told me, like I said maybe you never realised what VTT was (FSB termination) I never used to myself.
Anyway back to cpu I have it sat at 4.2ghz on my P5E X38 settings are
Vcore in cpu-z 1.408v (just about Ok)
NB 1.73v high I know but quads need it, plus my NB is watercooled, mosfets aswell
CPU PLL 1.56v
FSB term 1.38 might be able to get that down to 1.36 with more tweaking.
not primed it yet but had a few hours of gaming and no crashs, seeing as I want it for gaming I am happy with it.
With some more time, might be able to take a little off voltage, but seeing as it is idling at 25,26,27,25 I am not to fussed.
Once again sorry for saying what I did, but I think I was in my rights as I thought you had given me wrong info to offload the cpu, thats what it would look like to anyone.
PS can you leave me some trust and please dont be harsh.
 
Apologies Banny, I was tired last night and think I took everything a bit too personally. If I were in your shoes I would have been a bit wary too given the evidence. I have left trust and no hard feelings.

I'm glad you've got on ok with it, at least clocked it higher than I ever managed. I think it's my board that's holding me back at the moment. I have decided to keep my Q9550 at 3.8 now since anything over the voltages are too high and temps get high, however, you can see in that screenshot above that on my old board 4.2 was easy.
 
Yeah 4.2 did take abit of messing around to get to, had to start a little higher with vcore then work back.
Seems fine now.
 
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