#1
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ATI 4850/4870 voltmod thread
LOL well...the cards are available in some places... if anyone has one, please post up high-res pics of the rear of the card and lets see how far they can be pushed once voltmodded
The story so far:
4850:
VCore:
VGDDR:
Thanks to jimmyz and DemonEyez for the pics and extra info
These mods will invalidate your warranty. I accept no responsibility for mods that go wrong. No-one forces you to try these.
Last edited by K404; 06-22-2008 at 01:09 PM .
#2
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wow your on the ball guy.
#3
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Quote:
Originally Posted by
philbrown23
wow your on the ball guy.
It's more like...
.. And it's tuesday
#4
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Where are they available?
#5
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Hong Kong
#6
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#5
Go buy some
#7
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here is the chip I will get a shot without the bridge blocking it in a few minutes. and higher res. it is in my rig right now. Stock volts 2d 1.05v 3d loaded 1.2v it will do 700 core with 1.2v.
[IMG]
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QX 9650 5ghz with 1.55v 4.8ghz with 1.5v 24/7 in a VAPOLI V-2000B+ Single stage phase cooling.
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2X HD4850's water cooled , volt modded
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#8
Diablo 3! Who's Excited?
Join Date: May 2005
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Yay! I cannot wait to whack a few of these cards. Hopefully they respond like RV670, 1.1GHz baby!
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#9
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Thankyou jimmyz for allowing me to feel slightly smug about posting this up so early
pic removed for being wrong
Please can you measure the voltage at the points marked in green?
Last edited by K404; 06-13-2008 at 02:15 AM .
#10
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No problem .044v idle 2d .054 loaded 3d
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QX 9650 5ghz with 1.55v 4.8ghz with 1.5v 24/7 in a VAPOLI V-2000B+ Single stage phase cooling.
DFI LP LT X-38 T2R
2X HD4850's water cooled , volt modded
Thermaltake 1KW Psu
4x Seagate 250GB in RAID 0
8GB crucial ballistix ram
#11
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Location: Glasgow U.K.
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LOL well...it aint those points for voltage measurement then! What about the points beside the points I marked (for the top two points- the solder points to the right, for the bottom two, the points underneath them?)
#12
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Here you go.
[IMG]
[/IMG]
__________________
QX 9650 5ghz with 1.55v 4.8ghz with 1.5v 24/7 in a VAPOLI V-2000B+ Single stage phase cooling.
DFI LP LT X-38 T2R
2X HD4850's water cooled , volt modded
Thermaltake 1KW Psu
4x Seagate 250GB in RAID 0
8GB crucial ballistix ram
#13
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Thanks
Il keep 1st post updated. Il be at work rest of day so will be slow on the updates until tonight
K
#14
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Quote:
Originally Posted by
K404
Thanks
Il keep 1st post updated. Il be at work rest of day so will be slow on the updates until tonight
K
cool, I will get some better pics today, I am only working a half day, I would call in sick but I need the money for VR's and such
got alot to do on my review thread to get it up. It would be done by now but I can't resist updating my favorite forum.
__________________
QX 9650 5ghz with 1.55v 4.8ghz with 1.5v 24/7 in a VAPOLI V-2000B+ Single stage phase cooling.
DFI LP LT X-38 T2R
2X HD4850's water cooled , volt modded
Thermaltake 1KW Psu
4x Seagate 250GB in RAID 0
8GB crucial ballistix ram
#15
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The mod is pretty much the same as for HD3k series.
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#16
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Only in XS is there a thread on how to volt-mod a card before the card itself is actually released.
#17
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Quote:
Originally Posted by
SoulsCollective
Only in XS is there a thread on how to volt-mod a card before the card itself is actually released.
Yeah it's hilarious, ME Amah lovin' it....
__________________When in doubt, C-4! " -- Jamie Hyneman-The Good Stuff: -The Aged Stuff: My ideal monitor: 24" diagonally - 1920x1200 resolution - 100+ Hz refresh rate - preferable an IPS panel with LED backlight
#18
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Quote:
Originally Posted by
SoulsCollective
Only in XS is there a thread on how to volt-mod a card before the card itself is actually released.
My thoughts exactly.
#19
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Posts: 35
Awesome
#20
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I believe volt mod is done I will be testing saturday. Here is what I found. 100k vr either place to ground.
[IMG]
[/IMG]
__________________
QX 9650 5ghz with 1.55v 4.8ghz with 1.5v 24/7 in a VAPOLI V-2000B+ Single stage phase cooling.
DFI LP LT X-38 T2R
2X HD4850's water cooled , volt modded
Thermaltake 1KW Psu
4x Seagate 250GB in RAID 0
8GB crucial ballistix ram
#21
Xtreme Member
Join Date: Jan 2005
Posts: 250
Does anyone know where I can find the volt mod for the 5850? I've been searching for a while but cant seem to find them! Heh heh
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#22
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Quote:
Originally Posted by
snipper_cr
Does anyone know where I can find the volt mod for the 5850? I've been searching for a while but cant seem to find them! Heh heh
Send me the card I'll mod it for you. no charge.
__________________
QX 9650 5ghz with 1.55v 4.8ghz with 1.5v 24/7 in a VAPOLI V-2000B+ Single stage phase cooling.
DFI LP LT X-38 T2R
2X HD4850's water cooled , volt modded
Thermaltake 1KW Psu
4x Seagate 250GB in RAID 0
8GB crucial ballistix ram
#23
Banned
Join Date: Jun 2005
Location: Glasgow U.K.
Posts: 3,183
Are the resistances/voltages for the GDDR the same as the 3850 cards as well?
Will update 1st post with everything once you confirm the VCore mod working
Thanks for the pics and info
#24
tl;dr
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5 ohm with 100k trimmer?
#25
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dont bust it mate
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got alot to do on my review thread to get it up. It would be done by now but I can't resist updating my favorite forum.
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