I wanted to know what kind of overclocks people are getting with Pentium D 9XX. I am looking at the 920. Please list you processor, motherboard, RAM, cooling type, and temps. Thanks!
I think I've only seen one or two people that were not able to hit 4.0ghz with the 920. So, IMO you may have a 95% chance of hitting 4.0ghz, if it is done the right way.
CPU- 1.44v-1.47v
RAM- 2.10v-2.30v
RATIO- 1:1 or 3:5
RAM Timins 4-4-4-12.
PCIs lock to 33.33 and 100
Hyper Path 3: disable
CPU Thermal: disable
Performance Mode: AUTO
DRAM Threshold: AUTO
Using stock heat-sink/fan, I doubt you'll hit 4.0ghz. Heat-sinks such: TT Big Typhoon, Tuniq Tower 120, Thermalright XP-120 and water.
I woulnd't go with a Smart Power, actually any PSU that Antec makes.
IMO, for an Intel system is best to work with a single powerful rail PSU. I have the SmartPower 2.0 500W and I didn't feel like it was good enough, that's why it is in my 2nd rig doing a little bit less of a stresfull job.
I would suggest the fallowing, by price from low to high:
-OCZ ModStream 520W
-SPARKLE FSP550PLG-SLI 550W
-SILVERSTONE SST-ST56ZF 560Watts
The best of them all:
-OCZ PowerStream 520W
I've had 4 Antec PSUs. Two suffer a slow death and one was weak that it couldn't even power my system, the infamous NeoHE 550W, since then I think Antec PSU are a P.O.S., never again will deal with another one.
That Smart 500W was a conpulsive buy, still works good but not good enough in my book, I will sell it soon and get a PC Power&Cooling 470W Silencer.
4.0ghz-4.5ghz can be definitely done with water but I'm not 100% sure if using an Antec will help.
The PSU shouldnt make a big difference at all, those CPUs are 65nm so you wont be putting anything over 1.4v into them anyways. You have to remember that the 920 has a locked multi of 14 so in order to hit 4GHz you will need an FSB of 285 which is definitely doable on a P5WD2-E In fact you will probably hit 300FSB or higher so long as none of your other components reach their limit (like RAM or something) but that CPU itself should be able to do 4.5GHz without too much trouble.
I woulnd't go with a Smart Power, actually any PSU that Antec makes.
IMO, for an Intel system is best to work with a single powerful rail PSU. I have the SmartPower 2.0 500W and I didn't feel like it was good enough, that's why it is in my 2nd rig doing a little bit less of a stresfull job.
I would suggest the fallowing, by price from low to high:
-OCZ ModStream 520W
-SPARKLE FSP550PLG-SLI 550W
-SILVERSTONE SST-ST56ZF 560Watts
The best of them all:
-OCZ PowerStream 520W
I've had 4 Antec PSUs. Two suffer a slow death and one was weak that it couldn't even power my system, the infamous NeoHE 550W, since then I think Antec PSU are a P.O.S., never again will deal with another one.
That Smart 500W was a conpulsive buy, still works good but not good enough in my book, I will sell it soon and get a PC Power&Cooling 470W Silencer.
4.0ghz-4.5ghz can be definitely done with water but I'm not 100% sure if using an Antec will help.
I already have the Antec... I bought from CompUSA because my PSU died and I didn't want to wait for a good one to ship from newegg.com. Bad decision, but the SmartPower isn't bad... Just not great.
I have heard some mixed results about the OCZ PSUs? Some people hate them, some love them. But, I have heard tons of good reviews about the SunBeam NUUO 550W, and it is $50 cheaper. Plus it is modular. So, when I choose to upgrade my PSU, it will be the NUUO most likely.
Why do you only say 4-4.5 on water? There is a guy here who got 4.01 on air with stock voltages!
The PSU shouldnt make a big difference at all, those CPUs are 65nm so you wont be putting anything over 1.4v into them anyways. You have to remember that the 920 has a locked multi of 14 so in order to hit 4GHz you will need an FSB of 285 which is definitely doable on a P5WD2-E In fact you will probably hit 300FSB or higher so long as none of your other components reach their limit (like RAM or something) but that CPU itself should be able to do 4.5GHz without too much trouble.
Can you give me a quick explination of the relationships between RAM, FSB, and CPU. Thanks!
You divide CPU by multiplier to get FSB. You divide RAM by 2 to get it speed right? So if I have DDR2-667 that means I can get 333.5 x 14 = 4669Mhz correct?
You divide CPU by multiplier to get FSB. You divide RAM by 2 to get it speed right? So if I have DDR2-667 that means I can get 333.5 x 14 = 4669Mhz correct?
pauldovi, I believe you've got it correct, DDR2 667 will give you enough headroom or 4.67GHz and I dont believe you will go any higher than that. But remember, just because its DDR2667 doesnt mean it cant do DDR2 800, heck my DDR2 533 does DDR2 700 at stock voltages and only 1.9v! So dont waste your money on the DDR2 800 unless you really think you can pull off 400x12
lol. With DDR2, the RAM is not too likely to be holding you back, it will 90% be either the CPU reaching its limit or the mobo reaching its limit.
Do you think I will be able to push this processor past what DDR2-667 can handle? I have a good watercooling setup, and the 667 ram will give me 4669Mhz. I was hoping for around 4.8. Do you think this is possible?
pauldovi, I believe you've got it correct, DDR2 667 will give you enough headroom or 4.67GHz
But, I'd I get DDR2-800, can't I set it for DDR2-667 and then achieve better timings? Like if it runs at 4-4-4-12 at DDR2-800 @ 2V, I can run it at 3-3-3-8 at DDR2-667 @2V?
Dude...! Use the edit button - I think you have 2 triple posts...
About dividers - Idk if it applies to intel as well as amd but the dividers on amd are not just 5/6 * FSB. 1:1 is CPU/9, (EDITED) 9:10 (or is it 5:6?) is CPU/10, so on and so forth until 1:2 is CPU/18. So on my setup the ram (and consequently the dividers) pull speeds from the CPU speed, not the FSB speed. Maybe that applies, Idk but no one had mentioned it.
Dude...! Use the edit button - I think you have 2 triple posts...
About dividers - Idk if it applies to intel as well as amd but the dividers on amd are not just 5/6 * FSB. 1:1 is CPU/9, (EDITED) 9:10 (or is it 5:6?) is CPU/10, so on and so forth until 1:2 is CPU/18. So on my setup the ram (and consequently the dividers) pull speeds from the CPU speed, not the FSB speed. Maybe that applies, Idk but no one had mentioned it.
I use edit for related things, but I don't want anyone to miss my question.
Quote:
But, I'd I get DDR2-800, can't I set it for DDR2-667 and then achieve better timings? Like if it runs at 4-4-4-12 at DDR2-800 @ 2V, I can run it at 3-3-3-8 at DDR2-667 @2V?
Quote:
On the 3.0, 3.2, and 3.4 Pentium D models, what changes the FSB or the multiplier?
That sounds about right ^ also 4.8 is reasonable on water, I've seen 5.0 and above on water for the 930 and above so assuming your mobo is up to it I think 5GHz is within grasp. Also, all 9xx series have 200 base FSB but the multiplier goes up from 14x to 17x (except for the XE/EE which has a 266x13 multi)
3.92Ghz
1.2875v
3-3-3-8
60c (with side panel off, max load)
My highest unstable OC (loads Windows)
4.21Ghz
1.33v
5-5-5-12
63c (with side panel off, max load)
both were with 1:1 ratios, I guess I could try 4.2 with a divider, but I want to see about 4Ghz with a 1:1 first.
I am fighting a cooling problem (as you can see), I just applied AS5 yesterday, so far it's dropped load temp 2 degrees....hopefully I'll get another 3 at least after it cures. And I am going to see about getting a new case with 120mm fans (or mod a basic case to take 120mm fans), but 4Ghz might have to wait till after taxes.........
That sounds about right ^ also 4.8 is reasonable on water, I've seen 5.0 and above on water for the 930 and above so assuming your mobo is up to it I think 5GHz is within grasp. Also, all 9xx series have 200 base FSB but the multiplier goes up from 14x to 17x (except for the XE/EE which has a 266x13 multi)
The P5WD2-E Premium is the best motherboard around, correct?
I think I will go with 1 stick of the Patriot DDDR2-800 (with the hope of getting another in the future). That way I will not be limited by the memory, nor will I have to worry about dividers.
The only 9XX with HT is the 955, correct? Why would intel preech about HT, and then not include it with there flagship? Anyways, I have HT disabled on my 550, and I get better performance. A 920 OCed to 4.8-5.0 should beat a FX60:
920 @ 4.9 = 4.9 x 6 x 2 = 57.6 billion ops per second
FX60 @ 3.0 = 3.0 x 9 x 2 = 54 billion ops per second
If the FX60 was a 3.2GHz it would exactly be equal to a 920 @ 4.9GHz
Correct, 955XE has HT, the reason the 900 series (besides the XE) dont have HT is because Hyper Threading is kind of like dual core's little sister, its kinda the same idea but not nearly as well executed and at the end of the day you still only have 1 CPU core and 1 L1 and L2 cache so its not nearly as good as dual core, the 955XE is dual core AND ht so its 4 total cores. (theoretically)
Maybe I should have kept my 920, Never even put it in the PC. I think its time to buy another 1.
Why did you get it?
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