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Old 07-03-09   #1 (permalink)
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intel nvidia

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Default q9550 prime instablilty issues

Im currently trying to break my current clock of 3.4ghz and I cant get anything stable over it. I am trying right now to get a 3.6ghz clock with these settings

VCORE: 1.26v
FSB: 1.3v

It seems that always 1 core will fail on prime 95 while the other cores are running fine. My question is it not enought volts? My other thought would be that my memory is holding me back, its OCZ sli ddr2 800. The thing is I was at a 1:1 ratio without overclocking the ram by going to 3.4 would it hurt any to OC the ram to 850Mhz or would that even help with stability?

System: C1
CPU
Q9550 3.8Ghz 1.296vcore
Motherboard
EVGA 780i A2 rev.
Memory
4gb OCZ dd2 5-5-5-17 1:1 @ 900Mhz
Graphics Card
Gtx285's in sli
Hard Drive
2 seagate 320gb 7200.10 / 1TB seagate storage
Sound Card
Onboard
Power Supply
Thermaltake 850
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Haf 932
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Megahalems
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Stock
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Vista Ultimate 64bit
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Old 07-04-09   #2 (permalink)
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Quote:
Originally Posted by vwmikeyouhoo View Post
Im currently trying to break my current clock of 3.4ghz and I cant get anything stable over it. I am trying right now to get a 3.6ghz clock with these settings

VCORE: 1.26v
FSB: 1.3v

It seems that always 1 core will fail on prime 95 while the other cores are running fine. My question is it not enought volts? My other thought would be that my memory is holding me back, its OCZ sli ddr2 800. The thing is I was at a 1:1 ratio without overclocking the ram by going to 3.4 would it hurt any to OC the ram to 850Mhz or would that even help with stability?
Try unlinking your ram until you get your overclock. Then work on the ram. Yes you need more V-core -for sure. Probably 1.3/1.32v

System: GIGABYTE GOODNESS
CPU
Q9650@4.0Ghz. 1.30625/1.25vid
Motherboard
GA-EP45-UD3P/F10b
Memory
G.Skill/2x2Gb.BLACK PII/8500
Graphics Card
Sapphire 4830/1GB DDR3-700/1175
Hard Drive
Seagate 250Gb/7200
Sound Card
onboard
Power Supply
Corsair 620-HX
Case
Antec 900
CPU cooling
Xigmatek Dark Knight/Delta/Lamptron FC-2
OS
Vista 64 bit
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Samsung2433BW
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Old 07-04-09   #3 (permalink)
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Default

^ Shouldn't need that much. Im running my Q9550 @ 3.6 at 1.22 (stock) voltage.

Stable on prime 95 for 3 hours. Gonna let prime run overnight tonight.

To OP, that RAM might not OC well. I had OCZ gold before I got my G.Skill kit (got it today) and I couldnt go past 3.4 for the life of me. I was constantly getting bsod with the ram even clocked slightly to ~825.
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System: The SunDowner
CPU
Q9550 E0 @ 3.8Ghz
Motherboard
Gigabyte GA-EP45-UD3L
Memory
2 x 2Gb G.Skill PC2-8500 @ 1066Mhz
Graphics Card
eVGA GTX 260 Core 216 SC Edition 690/1425/1130
Hard Drive
Seagate Barracuda 7200 500GB SATA
Sound Card
Realtek
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OCZ StealtxStream 600W
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NZXT Apollo W/ 2 x 120mm Antec Tri-Cool
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Xigmatek HDT-S963
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Last edited by GenghisKhan222 : 07-04-09 at 02:10 AM
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Old 07-04-09   #4 (permalink)
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probably going to have a hard time getting much higher than that with a Tuniq Tower also. If you have the E0 stepping 9550, you might, but the C1 just runs too hot for it to be stable (most likely)

try a different RAM divider, even if it means you have to underclock the RAM for the time being. Modern RAM isn't like it used to be - the speeds it's publicized to have are pretty close to the max it's capable of *most* of the time.
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System: Blinky
CPU
q9450 @ 3.6 / 1.23 vcore
Motherboard
Asus P5Q Pro
Memory
2x2 Corsair Dominator 1066
Graphics Card
PNY GTX 275 / MSI Radeon 4870x2
Hard Drive
WD 640gb Black
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Coolmax 950w Greenpower modular
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Old 07-04-09   #5 (permalink)
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Default

Quote:
Originally Posted by dennyb View Post
Try unlinking your ram until you get your overclock. Then work on the ram. Yes you need more V-core -for sure. Probably 1.3/1.32v
OP do this. Ram speed should not be a problem with Nvidia chipset motherboards.
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All My Children:
[E8400@4ghz 1.275v- Biostar TPower i45- 4gig Patriot Viper- TR Ultima 90- EVGA GTX260- Antec 900]
[E6850@3.6ghz 1.425v- Gigabyte EP35-DS3L- 4gig OCZ Fatal1ty- TR Ultima 90- EVGA GTS 250- NZXT Tempest]
[Q9550@3.9ghz 1.33v- Gigabyte EP45-UD3P- 4gig Dominator- Xigmatek S1283- Visiontek HD4850 x2- Antec 900 II]
[Athlon II X2 250@3.6ghz 1.4v- MSI K9A2 CF-F- 4gig OCZ Fatal1ty- TR Ultima 90- Galaxy GTS 250- Antec 300]
[E7300@3ghz 1.15v - Asus P5N-D- 4gig OCZ Fatal1ty- OCZ Vendetta 2- EVGA 8800GTX- Antec P182]

System: The Stop Light
CPU
i7 920@4.0Ghz
Motherboard
EVGA X58 E758
Memory
6gig GSkil 1600mhz
Graphics Card
EVGA GTX260 Core216
Hard Drive
WD 250G
Power Supply
Cooler Master 1000W
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CM Stacker EVO 830
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T.R.U.E.
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