Need voltmod for E5200

[VirtualLarry]

Looking for voltmod instructions with pictures, to bump up the vcore up to 1.4v-1.45v. Essentially, I want a mininum vcore of 1.4v, with a maximum defined by the default VID for the chip.

I'm going to attempt using an E5200 in an Asrock mobo (either the 775dual-vsta, or the Wolfdale-1333, both lack vcore adjustments). I would like to OC as high as possible, so I need 1.4v.


I found this , but the starting VID is going to be substantially different on the E5200 (1.18v?) than the VID shown in the mod. Also, the picture diagrams are the exact opposite of the photographs. If you notice, the "pin1 corner" is shown in the opposite corner. So I wonder which is correct, the diagram or the photograph. So confusing.

Edit: Or perhaps just pointers to the documentation that I need to concoct my own voltmod.

 

[extra]

Hehe, yeah, I had the same issue with trying to do a voltmod for my e7200, I just got snarky "use search" replies ... problem is all the pictures of mods are for the old 65nm chips. I did get it, though. So can you, you will just hafta work for it, like I did!

Here is what to do:
1. Go to intel's website and download the pdf specifications for your chip. Print out the relevant pages. Remember that the picture of the socket layout in the pdf is of the motherboard socket, so you will need to kinda mirror it if your working on the chip.
2. Run appropriate cpu info software to get the default VID of your chip, then cross reference htat with the pdf file to figure out what your VID pins are set too by default
3. Find ones that are set to 1 by default that you can bring to 0 by connecting them to a nearby VSS pin.
4. Voila! You've just created your very own custom volt mod.

 

[VirtualLarry]

I found the VID specifications here (PDF). Table 21 and 22.

The question is, which VID table do I use? VRD 10.1, or VRD 11?
VRD 10.1
1 0 1 1 0 1 1 1.18750
VRD 11.0
0 1 0 0 0 1 0 0 1.18750

Clearly the tables are not compatible with each other. The processor has a VID_SEL pin too, that tells the mobo which table to use. Can I just assume that 45nm chips always select VRD 11.0? "VID_SEL is an input that determines which VID code table to use. It is a static line that is programmed by the processor package pin bonding."

This difference makes me amazed that somehow older mobos designed only for 65nm chips managed to get 45nm chips to work on them. Like the 775dual-vsta.

If I change the VID6 bit from 1 to 0, then this is the voltage I get:
0 0 0 0 0 1 0 0 1.58750

Seems a bit too high for a 45nm chip. Looks like I'm screwed. Can you post details of your E7200 mod? I'm curious how you got around this problem.

Maybe I'm not screwed. If all I need to do is tape off a VID pin to get a "1", then I could choose either one of these voltages:
0 0 0 1 1 1 0 0 1.43750
0 0 1 0 0 1 0 0 1.38750

 

[Zap]

How high were you planning to OC? With the Wolfdale-1333, the 945GC chipset doesn't have a fully locked PCI/PCIe bus, and the chipset doesn't officially support 1333FSB (though many motherboard manufacturers claim such support). Besides the CPU needing to do whatever speed you want to overclock to, you'll need to clock the PCIe up as the FSB goes up. IIRC 333MHz FSB needs around 115MHz PCIe. Highest stable FSB on those boards have been reported to be around 350-360MHz FSB.

Do you already have these boards and the CPU? If you don't have the board yet but are just looking for something cheap, perhaps you can buy an ECS G31 board from someone who got it from a Fry's deal. Those boards may still need a voltage mod, but should be good to decent bus speeds while retaining 100MHz PCIe.

 

[extra]

Hehehehe, you weren't looking at the same PDF that I found.. one moment.

 

[extra]

Okay, use this PDF:
http://download.intel.com/desi...or/datashts/320467.pdf

Tell me the default VID for your chip, which I'll need to know to give you any further advice. The table you want is just on page 15 of that PDF.

Page 39 shows the socket.
You will also want to refer to page 43 to make all perfectly clear. ^_^

Let us know what your default VID is.

 

[VirtualLarry]

Originally posted by: Zap
How high were you planning to OC? With the Wolfdale-1333, the 945GC chipset doesn't have a fully locked PCI/PCIe bus, and the chipset doesn't officially support 1333FSB (though many motherboard manufacturers claim such support). Besides the CPU needing to do whatever speed you want to overclock to, you'll need to clock the PCIe up as the FSB goes up. IIRC 333MHz FSB needs around 115MHz PCIe. Highest stable FSB on those boards have been reported to be around 350-360MHz FSB.

Do you already have these boards and the CPU? If you don't have the board yet but are just looking for something cheap, perhaps you can buy an ECS G31 board from someone who got it from a Fry's deal. Those boards may still need a voltage mod, but should be good to decent bus speeds while retaining 100MHz PCIe.

I already have both a Wolfdale-1333 board, and an Asrock 775dual-VSTA. The Wolfdale-1333 board, with an E2160, will only overclock from 200 FSB to 266 FSB, and yes, PCI-E increases to 115. It seems that it is possible to overclock to 333 FSB with a CPU mod from 200->266, and then software overclock to 333.

I don't have the E5200 CPU yet, but I picked one up for a friend of mine and is running in his IP35-E, it goes to 300FSB, 3.75Ghz, at 1.4v (actual), 1.425v (BIOS). It has a default VID of 1.1875v according to CoreTemp.

So I figure if I do the voltmod to 1.43750, and do the FSB mod to 266, then I should be all set on my way to a max overclock of around 3.75Ghz. (If I use the Wolfdale-1333. The Asrock 775dual-VSTA doesn't require the FSB mod, and will run at up to 280FSB as I understand it.)

 

[VirtualLarry]

Originally posted by: extra
Okay, use this PDF:
http://download.intel.com/desi...or/datashts/320467.pdf

Tell me the default VID for your chip, which I'll need to know to give you any further advice. The table you want is just on page 15 of that PDF.

Page 39 shows the socket.
You will also want to refer to page 43 to make all perfectly clear. ^_^

Let us know what your default VID is.

I guess I want to go from:
0 1 0 0 0 1 0 0 1.18750
To:
0 0 0 1 1 1 0 0 1.43750

So I need to ground VID6 to VSS to make it "0", and then tape over VID4 and VID3 to make them "1".

The table on page 43 makes it all obvious, thanks.

 

[extra]

^_^.. try one mod at a time, usually makign the connection with the conductive pen or paint is super easy, but sometimes getting that damn peice of tape over just one pin is a huge pain in the ass!>

 

[adarkar]

could I use the "modded vids" of the e2180? Do they use the same VID table? According to the e2180 table, config should be 0 1 1 1 0 0 (vid 1-6) for 1.4375V

I hope it's the same table, so I don't have to go crazy again about painting and tapering... please confirm this, I'm gonna buy a e5200 very soon and I'll put it on a Asrock conroe1333-D667 (it's almost the same board as the Wolfdale above).

 

[extra]

Your not going to want to use the same mod from a 2180 because they have completely different stock voltages from the 45nm chips. Just go to intel's website and download the pdf for your chip and figure out a mod for your chip after you've figured out the stock voltage. It's really not very difficult, just remember that the picture of the pad layout is a picture of the socket, so it's mirrored from what your looking at at the bottom of the chip.

If your not comfortable with that just get a motherboard with voltage adjustment, all but the cheapest boards have them.

 

[adarkar]

Originally posted by: extra
Your not going to want to use the same mod from a 2180 because they have completely different stock voltages from the 45nm chips. Just go to intel's website and download the pdf for your chip and figure out a mod for your chip after you've figured out the stock voltage. It's really not very difficult, just remember that the picture of the pad layout is a picture of the socket, so it's mirrored from what your looking at at the bottom of the chip.

If your not comfortable with that just get a motherboard with voltage adjustment, all but the cheapest boards have them.

you are right.... maybe i'll get a new mobo... but since I already did theat mod on my 2180, and have lots of silver paint left after that, I intended to use it to do the mod on the 5200 too. Saving a few ?? too.

I've seen the MSI G33M-FI mobo, it looks a good price/qality board.

BTW, I need a mAtx board, got a nice "silenced" minitower case, and PCIExpress 16x has to be the top slot, because of double-slot passive cooled vga + SB Audigy card (bottom PCI slot not available due to the hard disk in the way).

I know , it's a bit complex solution

 

[Tempered81]

larry would the mod be similar to ones done for other generations of chips?

http://www.mwave.com/mwave/vie....asp?scriteria=CB24882

DS3L P35 - $48
" Unique Features Ultra Durable Motherboard
Over-clocking Enhanced "

 

[VirtualLarry]

Originally posted by: jaredpace
larry would the mod be similar to ones done for other generations of chips?

Should be similar, but not exact. You have to use the VRM 11 table, not the 10.1 one.

Originally posted by: jaredpace
http://www.mwave.com/mwave/vie....asp?scriteria=CB24882

DS3L P35 - $48
" Unique Features Ultra Durable Motherboard
Over-clocking Enhanced "

Good deal!

 

[Zap]

Originally posted by: adarkar
BTW, I need a mAtx board, got a nice "silenced" minitower case, and PCIExpress 16x has to be the top slot, because of double-slot passive cooled vga + SB Audigy card (bottom PCI slot not available due to the hard disk in the way).

Sounds almost like an Antec NSK3480 case.

The Asus P5K-VM has the PCIe x16 as the top slot, and is overclockable.

 

[adarkar]

Originally posted by: Zap

Originally posted by: adarkar
BTW, I need a mAtx board, got a nice "silenced" minitower case, and PCIExpress 16x has to be the top slot, because of double-slot passive cooled vga + SB Audigy card (bottom PCI slot not available due to the hard disk in the way).

Sounds almost like an Antec NSK3480 case.

The Asus P5K-VM has the PCIe x16 as the top slot, and is overclockable.

yeah exactly, nsk3480 (european version, I live in Italy).
How did you guessed it?

It's a nice case, and I'm gonna put a Scythe Ninja or the OCZ Vindicator in it, to cool cpu silently. I already have a AC Freezer 7 Pro in it, but the OCZ should be even quieter.

Thanks for the tip about the mobo, I'd like to save a few Euro, but I think I'll buy the p5k-vm or the msi g33m-fi (both with top 16x pciex slot). About 90euro shipped. Guess in usa are a bit cheaper, lol.

Meanwhile, I'll follow this interesting thread: if anyone finds out some config guide for Vmodding this cpu, I'll try when I'll get mine (probably next week).

 

[adarkar]

mhh maybe I'm starting to figure out how to paint... please confirm or correct me if I'm wrong

starting Vcore: 1.1875 V
desired Vcore: 1.3750
(I'l try to use it @266fsb, so around 3.3ghz, not more, should be rock solid, right? I'd like to leave EIST and C1E on, to save energy (and cool) while idle)

I have to paint (connect) VID 6 to VSS and tape VID 5 and 1.
Is this the correct answer? lol

 

[VirtualLarry]

I haven't ordered my next batch of E5200s yet, but I had a question about how to remove the conductive paint. Will nail-polish remover get it off? I'm just worried about screwing up the CPU if I make a mistake painting it.

 

[myocardia]

Nail polish remover? Is there something you aren't telling us, Larry? If you want to use a chemical to remove the conductive paint, leave the nail polish remover to the women, and spend $3.50 @ Wal Mart for a quart of 100% acetone. Acetone is the ingredient in polish remover that actually melts the polish. Thing is, it's only ~10% acetone. Just be careful with it, though, it will give you a chemical burn in no time (like less than 2 minutes).

I had to remove some conductive paint on an Athlon XP once, and I just used a toothpick, even though I had some acetone in the garage. Seriously. I just stood the processor on edge, held the toothpick with a pair of needle nose pliers, and had 100% of the paint off in ~1 minute. Okay, maybe it was 90 secs. Anyway, it "scrapes" right off, the same way that dried glue [or paint ] will.

 

[adarkar]

well, nail-polish remover doesn't contain acetone (here in Italy, at least) anymore (not good for health ) but it contains some isopropilic alcool, that does a good job at removing paint.

it does not hurt your cpu, and leaves no trace/sign.

get a cotton-stick (Q-tips), put oe end of it into the nail.polish, and remove paint carefully.
After you're done, use the other end to "clean" the area, just to be sure.
There will be nothing left on the cpu, so 3-year warranty will still be valid ;-)

Or- just "scrape" it off as myocardia said.
Being a machanical thing, though, it could leave (very small) signs of "misuse" of the cpu, so if you'll RMA it, they could see something.
I don't think they will actually see anything of that, 95% they won't but - who knows.

 

[Zap]

Originally posted by: adarkar
mhh maybe I'm starting to figure out how to paint...

If you are thinking of buying a new motherboard, don't waste your time.

Regarding the two boards you named... see this article. Personally I'd go with the Asus (which I did).

For removing the paint, I'd first try to just scrape it off, or use tape to lift it off.