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Old 07-09-09   #1031 (permalink)
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I got mine in today and OC'd t to 925. I am using GPUtool and I can control voltage. What are the safe voltages that I can use. I am loading at about 60C with a bump in the vcore. I can also adjust mem voltage so what is safe for the mem?

System: Blood Heaven i7
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Intel i7 920		 Motherboard
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Old 07-09-09   #1032 (permalink)
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I got mine in today and OC'd t to 925. I am using GPUtool and I can control voltage. What are the safe voltages that I can use. I am loading at about 60C with a bump in the vcore. I can also adjust mem voltage so what is safe for the mem?
I've read 1.4-1.45 is safe...But I could be wrong. Most people use 1.4V to get 1GHz though.

I'm at 1.412V for 1GHz.

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XFX 4890 1GB w/ GTX 260 PhysX
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Old 07-09-09   #1033 (permalink)
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I takes about the same for me. is that really what is considered safe for 24/7 on most 4890's?

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Old 07-09-09   #1034 (permalink)
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Not sure about the mem voltage. But for core you can run 1.4v without issue. Most people running 1Ghz are running 1.4v. Some cards that come OC'd are running 1.4v stock, so I would think if your temps are OK then 1.4 for 24\7 is fine.
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Old 07-09-09   #1035 (permalink)
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Not sure about the mem voltage. But for core you can run 1.4v without issue. Most people running 1Ghz are running 1.4v. Some cards that come OC'd are running 1.4v stock, so I would think if your temps are OK then 1.4 for 24\7 is fine.
I believe theres even a 1.5V 4890

System: Dark Knight
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XFX 4890 1GB w/ GTX 260 PhysX
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Old 07-09-09   #1036 (permalink)
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I have 3 of these the oc version.

ATI HD4890 Owners Thread-d10-4890-main-jh.jpg

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Old 07-09-09   #1037 (permalink)
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Who wanted to see a 5 ghz i7 975 quadfire 4890 run?

Here ya go:

30793 Vantage Gold Trophy run.
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Old 07-09-09   #1038 (permalink)
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I have 3 of these the oc version.

Attachment 115162
I will trade you 2 of my SSD's for one of those??

System: Blood Heaven i7
CPU
Intel i7 920		 Motherboard
Foxconn Bloodrage		 Memory
OCZ i7 Certified 1600mhz 		Graphics Card
2x HD4890 Crossfire
Hard Drive
Seagate 7200.12 1TB		 Sound Card
Creative XtremeMusic		 Power Supply
Zalman 850w ZM850-HP		 Case
CM Stacker 830
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TRUE lapped + Ultra Kaze		 GPU cooling
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Old 07-09-09   #1039 (permalink)
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I will trade you 2 of my SSD's for one of those??
Seriously? How large are they? I have the same one and I have a Toxic coming in. I'm really pumped about Crossfire... but the right offer...

Quote:
Originally Posted by LethalRise750 View Post
I've read 1.4-1.45 is safe...But I could be wrong. Most people use 1.4V to get 1GHz though.

I'm at 1.412V for 1GHz.
How are you changing your voltage? I'm using the Asus tool... but it will only let me go up to 1.4V. I can't make it to 1GHz on that
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4650<3850<4670<3870<4770<4830<3870X2<4850<5770<487 0<4890<4770 CF<4850X2<4850 CF<5850<5870<5770 CF<4870X2<4870 CF<4890 CF<5850 CF<5970<5870 CF
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Old 07-09-09   #1040 (permalink)
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The ASUS tool should allow up to 1.45v. If that does not work, Rivatuner has a plug in for the 4890 and can be used to adjust voltage and OC.

Or download GPUtool, just google it. Adjust voltage and clocks with this tool also.
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Celeron D 352 @ 6167.77mhz

Quote:
Originally Posted by microman View Post
negative thinking makes bad things happen dont let noobs get you down!

System: Sickness
CPU
E1200 :)		 Motherboard
IP35-E		 Memory
2x1Gb Generic DDR2-667 		Graphics Card
6600gt
Hard Drive
640 AAKS		 Power Supply
550w BFG		 Case
ANTEC 300
CPU cooling
craptastic		 OS
Vista 32-bit		 Monitor
17" hanns G widescreen
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