has anyone done any yet? If so... please feel free to share them.
i will post multimeter readings of the interesting spots tomorrow in the morning
Can't someone figure out how to voltmod the card?
System:
Opteron 165+ @ 3140mhz @1.5V aircooled
DFI NF4 Ultra-D
4X 512mb Speedpremium PC3500 new BH5
MSI 7900GTO 512MB @ GTX
2x WD 80GB raid 0 + 2x 300GB Maxtor
Channel Well Tech 550W
I think this is the reg. for Vdimm. #1 measures 3.21v, both #2s measure 3.33v(my 3.3v rail), and #3 measures 2.51v.
Looks like #3 is what's being passed to the ram. Does anyone know what pin on the ram is the Vdimm pin? I'd like to just make sure this reg is what I think it is.
The markings on the reg are...
H J
882
2CTA
[edit]
Uh-oh... is this memory the kind that uses 3.3v? If so, then I reserve the right to delete the above.
[/edit]
[edit#2]
http://www.samsung.com/Products/Semi...K4D64163HE.htm
Looks like I found the Vio. So, the ram already works off the 3.3v line... hmmmm... that'll take some different thinking then. (wish someone already had these mods done)
[/edit#2]
Oooooh... looks like a sneaky plan is the order of the day then...
I wont have time to look at this till next week so good luck with the mods guys.
But I feel that mem will be more worth while as it gives greater gain in points.
I've raised my 3.3v line to 3.45v and it didn't gain me a thing. I measured a couple of the Vdd lines on the memory chips and they were reading 3.45v so I know the voltage was getting to them.
Dunno... maybe Vddq could use a little bump.
I just think the Vgpu mod will show some immediate results... the memory may take a bit longer to finger out.
have you meassured vref?
VDDQ/Vref mod is done
Nice work Holst! Keep up the good job
I have something to do this weekend I see :P
System:
Opteron 165+ @ 3140mhz @1.5V aircooled
DFI NF4 Ultra-D
4X 512mb Speedpremium PC3500 new BH5
MSI 7900GTO 512MB @ GTX
2x WD 80GB raid 0 + 2x 300GB Maxtor
Channel Well Tech 550W
Can someone give spec's on the DDR chips??
C
http://www.samsung.com/Products/Semi...k4d64163he.pdfOriginally posted by charlie
Can someone give spec's on the DDR chips??
C
System:
Opteron 165+ @ 3140mhz @1.5V aircooled
DFI NF4 Ultra-D
4X 512mb Speedpremium PC3500 new BH5
MSI 7900GTO 512MB @ GTX
2x WD 80GB raid 0 + 2x 300GB Maxtor
Channel Well Tech 550W
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