I-Appliance BBS The Official Source for Internet Appliance Upgrades and Mods BBS Main List | Sign In | Sign Up | Search | Help | Linux-Hacker.net Reply to Thread | Printer |

Home / I-Opener Areas / I-Opener Technical Stuff Do you need the parts to make the 2.2V Vcore mod? Look here! Information on a group buy of parts from DigiKey Electronics

Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) humanoid Profile If you are ready to make the mod to your early model (V3 and earlier) IOpener to support a 2.2V Vcore as described in the "SW3...SW4....Correct Setting?" thread http://www.linux-hacker.net/cgi-bin/UltraBoard/UltraBoard.pl?Action=ShowPost&Board=technical&Post=1528&Idle=0&Sort=0&Order=Descend&Page=0&Session=humanoid.96676579227537 and are confronted with the problem of getting the parts, I may be able to help. I'm putting together a group buy of parts from DigiKey. The kit will have the following parts: 2- DIP Switch half pitch 4 Position - - - CT2184LPST-ND (To populate SW2 and SW1) 1- 0.012 ohm, 1 watt, 1%, 2512 (size) - - P12MCT-ND (To Replace R302) 2- 25K resistor - - - - - - - - - - - - - - - -P24.9KCCT-ND (To Replace R342) 2- 102K resistor- - - - - - - - - - - - - - - -P102KCCT-ND (For R343) 2- 100K resistor- - - - - - - - - - - - - - - - P100KCCT-ND (To Replace R202 to get 2.2V Vcore) 2- 200K resistor- - - - - - - - - - - - - - - - P200KCCT-ND (To Replace R202 to get 2.1V Vcore) I'm including 2 each of the "regular" resistors because they cost 7 cents each and it's good to have a spare in case you lose one etc. I'm including resistors to set both 2.1V and 2.2V in case you want to experiment or need to change the voltage. The cost of the kit is not yet determined, but it should be approx. $10 to $12. I would like to take payment via PayPal. The 102k ohm resistors are on back order per the DigiKey web site, I won't be able to get any information on when they will be available until Monday morning (21 August). Hopefully they will have back in stock this coming week. This means that I don't know when the kits would ship to you, hopefully it would be by next weekend. That all said, please post a reply to this thread indicating that you are interested in getting in on the group buy. Include your email address in the message. Sean 08-20-2000 03:28:18

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) Astrogoth Profile Interested. astrogoth@bigfoot.com 08-20-2000 08:43:52

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) Turbo3 Profile Thanks for taking on this job. The resistors used in the iopener are 603 size which would be DigiKey number HCT-ND instead of the 805 CCT-ND. The 805s are the next size up and probably will fit but you will have less copper showing at each end since they are longer (and wider). Cost is the same. Removing R302 in one piece requires a lot of heat on the memory chip side. I use a large flat tip iron at 450c on that side and it still takes a while to heat up. I use a second standard 35w iron on the other side. Mask off the components around it with high temp tape if you have it (3M541334-ND). For testing I am looking into using a small 250K pot for R202 so I can more easily adjust the voltage. 08-20-2000 08:45:12

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) AMDclocker Profile I have a V3 and would like to drop in an AMD K3 350AFK(tigerdirect$39.99). Would these parts allow me to change the Vcore to 2.2V , FSB and change the multiplier via switches? I'm a newbie @ SMT soldering. Do you know of a good cheap soldering iron appropriate for SMT and where to get one? I also have a V4/V5 with the original Yamaha sound chip and a SW4 with AMD K3 350AFK. Mbprobe reports 122 degrees for the motherboard and 135 degrees for the CPU. Am I slowly killing my chip or my Iopener? FYI, I have two Toshiba drives 1.3 gig and a 12 gig. The 12 gig w/ AMD has been running for weeks 24/7. My IO turns off almost immediately with the old 1.3 gig drive with the AMD chip. The 1.3 gig drive work fine with Winchip or RISE. I’ve read that if you can set the K2+ chip @ 2X multiplier it will yield 6X internal multiplier /www6.tomshardware.com/cpu/00q3/000713 is there a similar setting for the KIII 350AFK. Or will this draw too much power and shut down my IO. If it’s not practical to get significantly higher than 210 MHz with an AMD K3 is it really worth hacking my V3 for a few MIPS and a L2 cache. I enjoy the speed increase in my V4/V5 but it was all too easy with SW4:) I am certainly willing to invest an addition $10 to $12 in some SMT parts. I would want the parts to play with the clock multiplier as well. I have a paypal account please email AMDclocker@yahoo.com thanks for all your leg work. 08-20-2000 09:08:54

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) why0 Profile count me in for: 4 - kits. Thanks junk@ambrotose.com 08-20-2000 09:37:30

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) humanoid Profile Turbo3 - Thanks for catching the size thing. The extra cool part about it is that the 603 size (HCT part number) are in stock. Do you have any thoughts about a DigiKey part number for the pot? I'll probably add the high temp tape too. What about a heat sink for Q16? The HS124CT-ND looks promising, but it's for a solder-on application, I think. That might be good though, because my understanding is that the best way to get heat out of Q16's package is to put a heat sink on the drain tab. That entails problems with having voltage on the heat sink, though. Need to think about that. I guess the folks at Quanta decided that they couldn't afford the real estate on the board for the required copper land for cooling Q16. AMDclocker - Please read the the thread that I linked to in the orginal post. Turbo3 has posted some benchmark results there. Read them and make up your mind. Everyone - Please continue to post your emails if you want a kit. I'm leaning towards using two day delivery from DigiKey to cut down the lag time for everyone. I'd like to place the order on Tuesday morning, get the parts to my place on Thursday and get them out to everyone in the mail on Friday. If there's interest, I could I could send them to people via USPS priority mail. Right now I'm just planning on dividing the cost of the total order from DigiKey, (including shipping) by the number of kits to get a per kit cost, and then adding each person's shipping charges to that to get the cost for each person's kit. It looks like it'll be around $10 for each kit, about $13 if you want USPS 3 day delivery. I don't know how multiple kit orders will affect your shipping costs, but I think it should be a minimal impact. I'd really like to do this using PayPal. I am not going to send any kits out that are not prepaid. PayPal offers both parties some protection in the transaction. If you don't have a PayPal account, I suggest you sign up for one now, I can't remember how long it takes to get a new account verified and you need to be verified before you can send money with it. One last thing. I am willing to do this, but I only feel like doing it once. No whining if you don't post your email by midnight on Monday. Sean 08-20-2000 11:40:45

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) Cdog65 Profile Sean, I would like a kit. Kcarter417@aol.com Thanks, Cdog 08-20-2000 13:04:02

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) avcomp Profile Hello Sean, I would like to order two of the kits, send me an email at avcomp@hotmail.com with the details. Also would it be a lot more to get at least 3 of each resistor?? I know i havent done this soldering before and probably will blunder it up somehow, so id like some extras of each resistor. If not possible its okay. Also i didnt see a 10K resistor there, is it a lot more to add that to the list?? Thanks for doing this. ~Allow vcore adjustment: ~Install 10K resistor in R203 (can use 10K from R342 or R202) Avcomp 08-20-2000 15:26:54

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) YouBecha Profile I just need the switch that will fit in SW1 for the ~V5...looks just like the SW3. I'll get it and then see if I have enough taters to attempt soldering it on. bubbazanetti1@yahoo.com 08-20-2000 16:28:15

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) Turbo3 Profile One more thing I use to clean up the pads before putting in new resistors is "No Clean Wick" 2.5mm. Something like 10-5NC-ND. One foot (or even 6") in each kit should be more than enough. For a potentiometer I might use CT94P504-ND 500K 18 turn and hot glue it to the motherboard in an open space. The heat sink I use is more like HS189-ND attached with a piece of CPU Pad BER134-ND (cut into four or more pieces). I just happen to have these heat sinks in my parts drawers and the heat sink tape for mounting fans. 08-20-2000 17:40:16

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) Turbo3 Profile For soldier I use very fine 0.015" soldier 26-27 gauge. The smallest that DigiKey seems to have is 0.020" which would be 24 gauge but they call it 25 gauge. 08-20-2000 17:51:38

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) Gio2K Profile Count me in for one kit, please. gio2000@mindspring.com 08-20-2000 19:31:37

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) vetteguy Profile I'm in for 1. rubble99@hotmail.com 08-20-2000 19:42:35

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) dr4web Profile count me in for 1 08-21-2000 01:52:58

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) dr4web Profile correction I'll take a kit dr4web@yahoo.com 08-21-2000 03:02:05

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) kuyote Profile I am wanting 1 of these, if it will give me the parts to mod my v4 iopener without the sw4. kuyote@yahoo.com 08-21-2000 09:19:06

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) Fooch Profile | Email PLEASE count me in for two!! My address is spfouche@inetnow.net. Thanks! Fooch 08-21-2000 11:22:28

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) bilaw Profile I'll take 2. bilaw@mindspring.com 08-21-2000 14:40:04

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) Awol Profile Count me in for one kit. awol@spamfree@intcon.net 08-21-2000 14:41:28

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) Las_Vegas Profile | Email Please include me for a kit too! lna@bigfoot.com Las_Vegas http://iopener.how.to/ 08-21-2000 14:53:23

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) Locutus_since_1994 Profile Awesome! Count me in for 3 kits. djlarue@yahoo.com Thanks. 08-21-2000 20:01:37

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) Kudzu Profile The two 10k resistors I found listed are - P10KYCT-ND RES 10K OHM 1/16W .1% 0603 SMD OR P10KGCT-ND RES 10K OHM 1/16W 5% 0603 SMD I assume the latter is what you're looking for? 08-22-2000 01:04:47

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) humanoid Profile Thanks to everyone who's joined the group buy. The opportunity is now closed. Sean 08-22-2000 03:43:00

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) ASPguy Profile | Email Humanoid or anyone: can you help me get the parts for the v3 and v2 cpu upgrade to amd 333 mhz AFK ? would i need any additional stuff to bring the io running up to 300mhz +? thanks. -aspguy 09-01-2000 09:20:11

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) humanoid Profile ASPguy, Nope, I can't help. The big stumbling block for getting the stuff for the change was the quantity increment of 10 for the current sense resistor. That made it 27 bucks minimum for someone to get a resistor, and then you'd have 9 leftovers. I proposed a group buy, people signed up (and paid up), I placed the order and kitted and shipped that parts out. Maybe someone can take this on again. I haven't written up any "lessons learned" on this experience yet, I need to poll the participants in the buy and maybe I'll get around to posting that this weekend. Cheers, Sean 09-01-2000 10:59:19

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) ASPguy Profile | Email To anyone: i had gone to radio shack and purchase resistors. they are not the tiny rectangular type that goes on the smt boards. these are cylindric larger resistors with wire for the ends. anyways.. the people said that these resistors should work the same if i'm able to solder it in. so would this work? these are the typical resistors at radio shack. i was also able to get a 4 position dip switch, but it i much larger than the one on the iopener motherboard. can i use this if i'm able to use wire and solder it to it? the 4 pos dip switch is for the sw4 right? i'm modifying my v2/v3. i could have sworn the sw4 dip switch on the v4b is just a 2 position switch. thanks. 09-01-2000 11:02:54

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) Tackhead Profile humanoid: What about: SMT - $1.26 apiece for 1W resistors on page 380 of the Digi-Key catalog? Or if you're willing to solder regular resistors onto the thing, the next section down has 0.005, 0.010, and 0.015 ohm resistors at $1.45 apiece. Not as pretty as using the P12MCT-ND 0.012 ohm 2512-size resistors, but looks workable and cheap, and no 10-quantity minimum from what I can tell. 09-01-2000 11:14:50

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) humanoid Profile Tackhead The latest and/or online catalogs has capacitors on page 380, but I'm going to guess you're looking at the Ohmite SMD Power Resistors on page 395 of the current catalog. I'm no expert, but they look a little big - they're 6mm long. The axial lead (wires on the ends normal kind) resistors might work. Another challenge for those who are adventurous. ASPguy, You're looking for resistors that are very low resistance - in the .010 ohm range and a 1% (precison) tolerance at the most. I don't think Radio Shack normally carries those values. You'll probably have to go to someplace like DigiKey (http://www.digikey.com) for them. Sean 09-01-2000 12:39:59

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) Tackhead Profile humanoid: My bad, I'm going from an older (hardcopy) of the catalog, but yes, I was looking at the Ohmite resistors. Silly question: Short of building the bridge, how the heck do you measure a resistance like that? I'm probably gonna wimp out and back off the CPU speed to the point that I can get by with the stock current limiter, but for people pondering soldering an axial lead resistor into things, is soldering technique vital here? (i.e. how thick a solder layer, or how long a wire, would be required to add a few milliohms of extra resistance?) 09-01-2000 16:42:38

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) Turbo3 Profile We really just want to completely defeat the current limit function and just rely on the undervoltage function to shut the power supply down. So a large piece of wire across the top of the R302 resistor should do the trick. I have already had all my resistors changed so someone else will need to verify this. The only disadvantage is that I use the current sense resistor to measure the actual current used by measuring the voltage across it. It is normally in the 20-80 millivolt range with 80-120 millivolts being the shutdown trigger point. Divide the number you get by the resistor value and you have your current. Of course you could go backwards and first measure the voltage with your current setup and stock R302 (0.015 ohms) to get your present current draw and then put the wire across. Then measure the voltage across that combination and it should be less than before. Take the voltage reading you now get and divide it by the current from the stock setup and you get your effective resistance. If you have done everything correctly it should be less than 0.015. 09-02-2000 04:30:10

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) ASPguy Profile | Email To Humanoid or anyone else: I was hoping that i can somehow use these resistors that i've gotten from radio shack. when u said that i'll need a resistor in the .010 ohm with 1% resistance, would that be just for 1 resistor which is the r302? what about the other resistors? can i use the radio shack large cylindrical resistors? i got them as in W like 10w, 100w, 47w, etc etc. there is also another electronic store in town, this is a private one. when i mentioned about a .012 resistor, they said that didn't have any that low. and they gave me some other cyclindrical resistors instead. let me know what i can use to convert my v2/v3 okay? cause i called up digikey and they wanted $26 for a package of 10 resistors of the same type. paying that much when i only need to use one is someone.. way out of my field, especially whent here are several other resistors i'll need to get. Thanks. One other thing, would anyone know how to increase my v4 io which has the amd 333 mhz afk chip running speed to like 300 mhz or more? i think it runs at 200mhz as the default for just dropping in the cpu and adjusting the sw4. -Aspguy 09-02-2000 12:06:17

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) ASPguy Profile | Email Hello, I'm about to help out and distribute these resistors and switches. it seems as the $26 for 10 is just for that one part. the other parts are cheap. they're still expensive if i'm buying it for everyone else though. anyhow.. i have a couple of questions hoping that someone can help get them answered: 1.) how many of reach resistors or switches do i need to make a v2/v3 or v4 mode? 2.) what are the differences in making the vcore either 2.2 or 2.1 volt? 3.) are these resistors what we'll need to bring the io running the amd 333 mhz afk chip up to the 300 mhz range? (Turbo3 do u know?) Thanks everyone, and for those who are interested, please post ur interest here, and email me at studmufn@hotmail.com as i'll be putting this package together. Humanoid, what did u sell the package for? $10? so i'll also sell it at that price. Have a great day, can't wait to get my io up and running at the fast speed! -aspguy studmufn@hotmail.com paypal anthonyucla@hotmail.com 09-02-2000 12:17:21

RE:Do you need the parts to make the 2.2V Vcore mod? Look here! (modified 0 times) Johnson Profile VERY INTERESTED!! johnson jackson_1@hotmail.com 01-24-2001 00:45:05

Reply to Thread | Printer | All times are PST Powered by UltraBoard v1.62

I-Appliance BBS General - NEWS, Breaking NEWS - linux-hacker.net BBS on CD Questions - User Groups in Your Town - E-Bay, Yahoo Auction LINKS ONLY (MODERATED) - Jokes & Humor - usdtv box I-Opener Areas - I-Opener General Posts - I-Opener Technical Stuff - I-Opener Technical Info Reference (MODERATED) WebSurfer Areas - WebSurfer General Posts - WebSurfer Technical Stuff - WebSurfer Technical Info Reference (MODERATED) Other I-Appliances - Virgin Webplayer - WebPal - MailStation - 3Com Audrey - ThinkNIC / Oracle NIC - Gateway/AOL Connected Touch Pad - Philips/AOL-TV - ACER NT-150 STB - MSN Companion - Compaq IA - Emachines IA - IBM NetVista IA - Intel dot.station - MSNTV2 Network Computers - Fujitsu-Siemens Scovery Linux Net Computers - GallantWeb Server Consoles - Dreamcast - xbox hacking Web Pads - Epods One General Post - Panasonic CF-01 - Fujitsu Stylistic 1200 - Cybiko Thin Clients - Thin Clients DigitalVideoRecorders - DTV Recorders, Replay, TiVo, Etc... - Tivo Hacks Linux - Midori Linux General Board - ITX MotherBoards Single Board Computers - Earth Computers mARMalade Elite Member Area MISC Areas - The Swap Meet WE TAKE NO RESPONSIBILITY FOR ANY TRANSACTION HERE AND NO COMMERCIAL POST PERIOD !!! - Wireless Net - Cameras - Robotics - Routers/Gateways - Mattel JuiceBox