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Im looking to overclock to quad 4ghz on water

N

NinjaGnome

Platinum Member
Well I really want to hit the 4ghz mark with the next rig i build and was wondering which of these chips would have a better chance of hitting 4ghz on water. If niether then i will wait a few months and see what happens
 
Don't know about the other two but I'm running my Q9550 at 4GHz on air with the Xigmatek S1283 cooler so you should have no problem on water if you get a chip that will do it. Default voltage on a Gigabyte UD3R with some 8500 RAM. Temps around 60 under full load.
 
I'd say the q9550 would be more difficult to reach 4ghz because you're reaching the yorkfield FSB limitations and it already has a low locked multiplier. The PII 940 has an unlocked multiplier so you could keep HTLink the same, and just change multi & vcore...

 
Originally posted by: jaredpace
I'd say the q9550 would be more difficult to reach 4ghz because you're reaching the yorkfield FSB limitations and it already has a low locked multiplier. The PII 940 has an unlocked multiplier so you could keep HTLink the same, and just change multi & vcore...
Click to expand...

But a Core2Quad @ 4GHz would stomp a Phenom2 @ 4GHz.
 
Originally posted by: Atechie
Originally posted by: jaredpace
I'd say the q9550 would be more difficult to reach 4ghz because you're reaching the yorkfield FSB limitations and it already has a low locked multiplier. The PII 940 has an unlocked multiplier so you could keep HTLink the same, and just change multi & vcore...
Click to expand...

But a Core2Quad @ 4GHz would stomp a Phenom2 @ 4GHz.
Click to expand...

yep, and the fact is it can be done, not hard either. Just get good memory, run a FSB of around 475Mhz which many boards can do and bam, you're at 4Ghz.

You just have to do the homework on what boards can hit those speeds.
 
the performance on the chip isnt that big a deal to me, I just want to hit the 4ghz mark. I mean either chip will do all i need it to do. I have maybe about 2 months before im done modding my case so I have a little time to see if anything else comes out by then.
 
Originally posted by: cmdrdredd
Originally posted by: Atechie
Originally posted by: jaredpace
I'd say the q9550 would be more difficult to reach 4ghz because you're reaching the yorkfield FSB limitations and it already has a low locked multiplier. The PII 940 has an unlocked multiplier so you could keep HTLink the same, and just change multi & vcore...
Click to expand...

But a Core2Quad @ 4GHz would stomp a Phenom2 @ 4GHz.
Click to expand...

yep, and the fact is it can be done, not hard either. Just get good memory, run a FSB of around 475Mhz which many boards can do and bam, you're at 4Ghz.

You just have to do the homework on what boards can hit those speeds.
Click to expand...

Yeah, except you need something akin to an X58 motherboard which usually costs $300+. Hardly a fair comparison IMO, and really you might as well get an i7 if you have that much to spend.

The Phenom 2 is a better value you than the C2Q if you're an overclocker IMHO. The op should be able to hit 4ghz using good air cooling with a P2.

I recommend the OCZ Vendetta 2.
 
I just got a DS4 open box. It will do 500 fdb, and on a quad, probably 480 (my other quad won't, but, its older....)
 
Originally posted by: SickBeast
Originally posted by: cmdrdredd
Originally posted by: Atechie
Originally posted by: jaredpace
I'd say the q9550 would be more difficult to reach 4ghz because you're reaching the yorkfield FSB limitations and it already has a low locked multiplier. The PII 940 has an unlocked multiplier so you could keep HTLink the same, and just change multi & vcore...
Click to expand...

But a Core2Quad @ 4GHz would stomp a Phenom2 @ 4GHz.
Click to expand...

yep, and the fact is it can be done, not hard either. Just get good memory, run a FSB of around 475Mhz which many boards can do and bam, you're at 4Ghz.

You just have to do the homework on what boards can hit those speeds.
Click to expand...

Yeah, except you need something akin to an X58 motherboard which usually costs $300+. Hardly a fair comparison IMO, and really you might as well get an i7 if you have that much to spend.

The Phenom 2 is a better value you than the C2Q if you're an overclocker IMHO. The op should be able to hit 4ghz using good air cooling with a P2.

I recommend the OCZ Vendetta 2.
Click to expand...

I thought X58 is for i7?

P45-based motherboard can do 4 Ghz w/Q9550, and costs under $150.
 
Originally posted by: Flipped Gazelle
I thought X58 is for i7?

P45-based motherboard can do 4 Ghz w/Q9550, and costs under $150.
Click to expand...

I said "X58-esque".

I actually meant X48, thanks for reminding me. 🙂

Isn't it true that you need an X48 motherboard to hit high FSBs like 450mhz+?
 
Originally posted by: SickBeast
Originally posted by: cmdrdredd
Originally posted by: Atechie
Originally posted by: jaredpace
I'd say the q9550 would be more difficult to reach 4ghz because you're reaching the yorkfield FSB limitations and it already has a low locked multiplier. The PII 940 has an unlocked multiplier so you could keep HTLink the same, and just change multi & vcore...
Click to expand...

But a Core2Quad @ 4GHz would stomp a Phenom2 @ 4GHz.
Click to expand...

yep, and the fact is it can be done, not hard either. Just get good memory, run a FSB of around 475Mhz which many boards can do and bam, you're at 4Ghz.

You just have to do the homework on what boards can hit those speeds.
Click to expand...

The Phenom 2 is a better value you than the C2Q if you're an overclocker IMHO. The op should be able to hit 4ghz using good air cooling with a P2.

I recommend the OCZ Vendetta 2.
Click to expand...

Elaborate please.

 
well i kind of am leaning the ph2 route since from what ive seen theres a much better chance of hitting 4ghz on it and maybe more with my watercooled setup. there is also more flexibility in the chip since i can change multis as well. still have plenty of time to mull it over.
 
Originally posted by: SickBeast
Originally posted by: Flipped Gazelle
I thought X58 is for i7?

P45-based motherboard can do 4 Ghz w/Q9550, and costs under $150.
Click to expand...

I said "X58-esque".

I actually meant X48, thanks for reminding me. 🙂

Isn't it true that you need an X48 motherboard to hit high FSBs like 450mhz+?
Click to expand...

Not really, decent P45 mobos can do 450FSB+ too... in fact the world record for FSB speeds was done on a P45 board, albeit a dual core, but still, 725MHz is pretty impressive: http://www.biostar.com.tw/app/en-us/news/news.php?id=31
 
the q9550 would be able to reach 4gz easily if not for the FSB limits of overclocking with quads. Just make sure you do you homework on what board you get. The PII 940 will do it easier because its unlocked, but will perform less then the q9550 @ 4ghz.
 
Originally posted by: cmdrdredd
...run a FSB of around 475Mhz which many boards can do and bam, you're at 4Ghz.

You just have to do the homework on what boards can hit those speeds.
Click to expand...

I've done the homework, & there's only one board, not many, that i've seen that people can consistently stably reach 475+ with quads on.

It's the Gigabyte UD3R/P.

Sure, you get occasional lucky results with other boards, but there are incredibly few results i've seen that are actually stable on any board other than that Gigabyte.

Even i cannot get my Asus P5Q-D there stably, & i'd consider it a very decent quad OCing board.

Anyway, NinjaGnome, get a Q9550 & the Gigabyte UD3R/P.
 
4.0 Ghz isn't trivial to get on the X4 940. Lots of review sites are stopping at 3.8 usually as the norm but if you can wait for a bit maybe some boards will turn out to be better for this than others on the AMD side. Probably the best bet like n7 said, get the Q9550 + UD3R/P.
 
Just got my q9550. Looks like I got a C1.

So far, I'm up to 3.825 at 1.26v. Max temps at 58 with prime95.
I tried up to 1.3v and couldn't get into windows at 475. I couldn't really get past 450 with my e8400 either so maybe it's my board.

This is with a DTEK fuzion and ASUS Rampage Formula.
 
Originally posted by: TimBob
Just got my q9550. Looks like I got a C1.

So far, I'm up to 3.825 at 1.26v. Max temps at 58 with prime95.
I tried up to 1.3v and couldn't get into windows at 475. I couldn't really get past 450 with my e8400 either so maybe it's my board.

This is with a DTEK fuzion and ASUS Rampage Formula.
Click to expand...

You'll need to mess with GTLs.

I couldn't get over 445ish stably till i worked on VTT + GTLs & NB + GTL.
 
you want 4ghz gaurentee'd ? then listen to me.

1. get a decient and solid board. The giga uD3 are great.

2. Ditch the watercooling. That setup would cost you around 300 dollars.

3. Add the 300 ontop of the price you were gonna pay for the Q9550 and get a Q9650.


Q9650 = 100% gaurentee in E0 steppings. Also i gaurentee you'll hit 4ghz @ 450x9 multi for a nice 4.05ghz.


And trust me, i hold the largest 4ghz+ yorkfield collection on this forum.
 
Originally posted by: soccerballtux
Originally posted by: Dravic
the q9550 would be able to reach 4gz easily if not for the FSB limits of overclocking with quads
Click to expand...

Well that kinda rules it out then doesn't it heheh? The fanboys will never die...
Click to expand...

Fanboy??? oh so witty.. +1 post count for you..

I'm sorry if my inference that the 45nm Intel chips should be able to hit 4ghz since they don't require much voltage and run rather cool wasn't in big bold letters.

let me restate it for you

If not for the stress to the FSB when overclocking quads on the intel architecture you would be able to easily hit 4ghz+ on the q9x00 series of processors. Is that better???

No it doesn't rule it out, it means you need to get a board that has been proven to handle high FSB overclocks with intel quads. As I don't have one of these boards, I would be unable to offer him a suggestion.



 
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