Great stuff guys, looking forward to seeng them n my own hands too. THat cheque should be winging its way to you soon Andy :up:
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Great stuff guys, looking forward to seeng them n my own hands too. THat cheque should be winging its way to you soon Andy :up:
I've only got the cards which are going to be volt modded. Highland3r should have the others, which should also have arrived today. He'll probably get some better pictures of the cards.
http://tom.drunken-student.co.uk/9600SE/DSCN2804.JPG
http://tom.drunken-student.co.uk/9600SE/DSCN2807.JPG
http://tom.drunken-student.co.uk/9600SE/DSCN2812.JPG
http://www.drunken-student.co.uk/bit...00SE%20(1).JPG
http://www.drunken-student.co.uk/bit...00SE%20(2).JPG
http://www.drunken-student.co.uk/bit...00SE%20(3).JPG
http://www.drunken-student.co.uk/bit...00SE%20(4).JPG
http://www.drunken-student.co.uk/bit...omp/9600SE.JPG
There you go. If you need any more pics, shout :)
sweet as. Passively cooled too - should be nice in my media centre once we're done with them!
I shall be paypaling you imminently, Highland3r. Thanks for all the effort so far.
You're gonna let the card live! wtf :PQuote:
Originally Posted by don_vercetti
http://www.drunken-student.co.uk/bittech/OC_comp/Cards!.JPG
well...i guess i may just have to display my winning card proudly on my mantlepeice.... :toast:
If your entering air that aint going to happen ;)Quote:
Originally Posted by don_vercetti
Does anyone know what ram is fitted to these cards or what voltage it is spec'ed to handle ?
Infineon 5ns.Quote:
Originally Posted by Thickbrit
As to what it can handle, Persivores the man for that... Should be good for the FAR side of 3v though ;)
Can get the full chip code from http://www.drunken-student.co.uk/bit...00SE%20(3).JPG pic :)
:p:Quote:
Originally Posted by Sam666
Looks Hynix to me :DQuote:
Infineon 5ns.
http://www.hynix.com/datasheet/eng/d...DU561622CT.jsp
http://www.hynix.com/datasheet/pdf/d...CT(Rev1.3).pdf
Appears promising tho :)
Tom
Sorry you are correct. Blaming that on lack of sleep and too much alcohol.... ;) ;)Quote:
Originally Posted by SoddemFX
After talking to Johnny Bravo, I think it might be possible to add the Vddq regulator to the cards, to have seperate Vdd and Vddq supplies. I'll see what I can do tonight, and what benefit (if any) a seperate Vddq supply will have :)
Sweet looks like this memory has some potential :D Cant wait to get my hands on this baby!!
which leg of which IC does the vGPU mod go to? - i'll can only get a low profile one and hence they have different PCBs. Should use the same regulator ic tho.Quote:
Originally Posted by persivore
It goes to pin 3 of the chip labled '1954' on the back of the card. The pins are very small tho, so might be quite difficult to solder to.Quote:
Originally Posted by TMM
Persivore,
I have some questions :D
Are there any trace differences bettween this PCB and the 128-bit 9600 PCB of the same manufacturer?
Given the very low current draw of this Hynix memory the manufacturer may have just added 0-Ohm resistors from the VDD and VDDQ planes. Is this so?
Are VDD/VDDQ regulated from 3.3v?
Is that 5-pin "T3C3" being used as a voltage reference? If so what is its output?
Tom
Are there any trace differences bettween this PCB and the 128-bit 9600 PCB of the same manufacturer?
No idea...There is space for another 4 mem chips (I would guess for 256mb/128bit cards)
Given the very low current draw of this Hynix memory the manufacturer may have just added 0-Ohm resistors from the VDD and VDDQ planes. Is this so?
There is a 0 ohm resistor on the back of the card (larger than the others on the card, so I would guess higher power), which is bridging the Vdd and Vddq supplies. I've tried removing it and adding the components for the Vddq regulator, but it just gives screen corruption, which disappears when the card is put back to stock. I'll try adding some decoupling capacitors to the supply later.
Are VDD/VDDQ regulated from 3.3v?
The Vdd supply is taken from the 3.3v line, but I can't tell on the Vddq supply (there's no voltage present at the mosfet pads source) at stock.
Is that 5-pin "T3C3" being used as a voltage reference? If so what is its output?
It is being used for a reference for Vdd and Vddq (and possibly other things too). Its output is 2.5v
Cheers :)
VDDQ has been bridged to also provide VDD, what voltage output were you getting when you implemented VDD?
Tom
I've tried between 2.50v and 2.70v, with no change :(. The stock voltage before modding was 2.68v.Quote:
Originally Posted by SoddemFX
What were the specifications of the FET you used? What voltage are the rails of the LM324?
Thats a high stock voltage for the manufacturer to use. I can guess why :D
Tom
I was using an APM2054 (rated to 4A continuous current). The opamp is running off +12v and ground. I'll try using a bigger mosfet, but I would think 4A would be enough current, and it didn't seem to be running very warm.Quote:
Originally Posted by SoddemFX
Edit: Just tried with an APM3055L (rated to 15A continuous) and it gives the same problem :(
Yes, they would both have been fine. Where are you taking your feedback from?
Persivore, if you are online tomorrow fire me a PM, I think I know whats wrong, got the measurements last nite and the numbers make sense :)
I've added a 1k resistor to the front of the card for feedback. There were solder pads present between pin 13 (inv.input) and the output of the regulator.Quote:
Originally Posted by SoddemFX