Q9550 or Q9650 @ 400x8.5?

PeterT · 04-12-2009, 02:04 PM

I am considering getting a C2Q to run at 400x8.5 (3.4). But, I don't want to have to run it much higher than stock voltage and would like to use the Intel retail HSF, if possible. Is this just wishful thinking?

Newegg has the Q9550 for 270USD:
http://www.newegg.com/Product/Produc...82E16819115041
Could I be reasonably sure that this CPU will do 400x8.5 at stock or only slightly higher voltage, preferably with the Intel retail HSF?

Or, would I need to spend the extra money (352USD) on the Q9650 to be sure to reach that speed at stock voltage:
http://www.newegg.com/Product/Produc...82E16819115130

I know there are no guarantees on overclock-ability, just looking for some input from those with experience.

TIA.

**Sandog** · 04-12-2009, 03:53 PM

You would have no trouble reaching 400FSB with those. Make sure the Q9550 is an E0 stepping, stock should be by now. Intel auto adjusts the voltage on the CPU. If you raise/lower the clock the CPU voltage follows. Mine is 1.09V at 2GHz and 1.23 at 3GHz. That is stock conditions. Anyway, you won't want to OC on the stock HSF. You can get a Dynatron 775 which looks just like a stock Intel HSF at NE. It's HS is built like the X6800 if you want the stock appearance and it is less than $20.

Sir Skully · 04-12-2009, 04:13 PM

Save the dough and go Q9550 and by a good cooler. The Q9550 I believe are all EO stepping now. I just came from a Q9550 and ran it 24/7 @ 4200mhz. The Q9650 from what I could see on the net, was not oc'ing any higher. The guy's with air cooling were all getting an easy 4gig oc with the Q9550 EO stepping.

PeterT · 04-12-2009, 04:54 PM

Thanks guys. I'm not concerned about the "look" of the cooler, just would prefer to use the retail HSF, if I could. I'm a little uncomfortable with those giant aftermarket monsters hanging off the motherboard and any crazy mounting that may be required.
Any other recommendations for a good quality HSF with a simple, solid mounting system at a fair price? One that doesn't require access to the back of the board to remove the HS? Is Zalman the one to go with? Which model? There seem to be so many different ones.
S370 and S478 seemed so much easier...

PeterT · 04-12-2009, 05:00 PM

Quote:

Originally Posted by Sir Skully

Save the dough and go Q9550 and by a good cooler. The Q9550 I believe are all EO stepping now. I just came from a Q9550 and ran it 24/7 @ 4200mhz. The Q9650 from what I could see on the net, was not oc'ing any higher. The guy's with air cooling were all getting an easy 4gig oc with the Q9550 EO stepping.

Skully,
Do you still have the Q9550 and if so, do you want to sell it?

Sir Skully · 04-12-2009, 06:19 PM

Quote:

Originally Posted by PeterT

Skully,
Do you still have the Q9550 and if so, do you want to sell it?

Sorry I sold it awhile back.....

04-12-2009, 02:04 PM	#1
PeterT CUSL2...GA-EP45-UD3P...? Join Date: Apr 2001 Location: Sunny Florida, USA Posts: 2,688	Q9550 or Q9650 @ 400x8.5? I am considering getting a C2Q to run at 400x8.5 (3.4). But, I don't want to have to run it much higher than stock voltage and would like to use the Intel retail HSF, if possible. Is this just wishful thinking? Newegg has the Q9550 for 270USD: http://www.newegg.com/Product/Produc...82E16819115041 Could I be reasonably sure that this CPU will do 400x8.5 at stock or only slightly higher voltage, preferably with the Intel retail HSF? Or, would I need to spend the extra money (352USD) on the Q9650 to be sure to reach that speed at stock voltage: http://www.newegg.com/Product/Produc...82E16819115130 I know there are no guarantees on overclock-ability, just looking for some input from those with experience. TIA. __________________ Proud Member: Team-CUSL2 - 'The Old School Crew' Asus Eee PC 1000HE, 1x2GB Corsair DDR2 667 GA-EP45-UD3P, Q9550, 4x2GB Corsair XMS2 DDR2 800, EVGA 9800GTX+ 512MB GA-EP45-DS3L, E7200, 4x2GB Corsair XMS2 DDR2 800, Asus EAH4850 TOP 512MB GA-EP45-UD3P, E6600, 4x1GB Crucial Ballistix DDR2 1066, EVGA 8800GTS 512MB P5B-D in a box at the moment P4P800-D, P4 2.4C, 4x512MB Mushkin DDR 400, ATI AIW X800XT 256MB TUSL2C, P3-S 1.4, 2x256MB Corsair XMS150, ATI 9800PRO 128MB, TB Santa Cruz CUSL2, P3 1.0, 1x256MB & 2x128MB Corsair PC133, Asus V7700D 32MB, SB Live! * Please join ABXZone and participate *
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04-12-2009, 03:53 PM	#2
Sandog Moderator Join Date: May 2003 Posts: 6,688	Re: Q9550 or Q9650 @ 400x8.5? You would have no trouble reaching 400FSB with those. Make sure the Q9550 is an E0 stepping, stock should be by now. Intel auto adjusts the voltage on the CPU. If you raise/lower the clock the CPU voltage follows. Mine is 1.09V at 2GHz and 1.23 at 3GHz. That is stock conditions. Anyway, you won't want to OC on the stock HSF. You can get a Dynatron 775 which looks just like a stock Intel HSF at NE. It's HS is built like the X6800 if you want the stock appearance and it is less than $20.
(Offline)

04-12-2009, 04:13 PM	#3
Sir Skully ABX KNIGHT EXEMPLAR Join Date: Feb 2001 Location: USA-GA Posts: 28,338	Re: Q9550 or Q9650 @ 400x8.5? Save the dough and go Q9550 and by a good cooler. The Q9550 I believe are all EO stepping now. I just came from a Q9550 and ran it 24/7 @ 4200mhz. The Q9650 from what I could see on the net, was not oc'ing any higher. The guy's with air cooling were all getting an easy 4gig oc with the Q9550 EO stepping. __________________ .....................................................................................................................
(Offline)

04-12-2009, 04:54 PM	#4
PeterT CUSL2...GA-EP45-UD3P...? Join Date: Apr 2001 Location: Sunny Florida, USA Posts: 2,688	Re: Q9550 or Q9650 @ 400x8.5? Thanks guys. I'm not concerned about the "look" of the cooler, just would prefer to use the retail HSF, if I could. I'm a little uncomfortable with those giant aftermarket monsters hanging off the motherboard and any crazy mounting that may be required. Any other recommendations for a good quality HSF with a simple, solid mounting system at a fair price? One that doesn't require access to the back of the board to remove the HS? Is Zalman the one to go with? Which model? There seem to be so many different ones. S370 and S478 seemed so much easier... __________________ Proud Member: Team-CUSL2 - 'The Old School Crew' Asus Eee PC 1000HE, 1x2GB Corsair DDR2 667 GA-EP45-UD3P, Q9550, 4x2GB Corsair XMS2 DDR2 800, EVGA 9800GTX+ 512MB GA-EP45-DS3L, E7200, 4x2GB Corsair XMS2 DDR2 800, Asus EAH4850 TOP 512MB GA-EP45-UD3P, E6600, 4x1GB Crucial Ballistix DDR2 1066, EVGA 8800GTS 512MB P5B-D in a box at the moment P4P800-D, P4 2.4C, 4x512MB Mushkin DDR 400, ATI AIW X800XT 256MB TUSL2C, P3-S 1.4, 2x256MB Corsair XMS150, ATI 9800PRO 128MB, TB Santa Cruz CUSL2, P3 1.0, 1x256MB & 2x128MB Corsair PC133, Asus V7700D 32MB, SB Live! * Please join ABXZone and participate *
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