DFI Infinity 975X/G FSB 500 MHz

**Benny Lodewijk** · 02-14-2007, 04:41 AM

Playing again with my old DFI 975X. vMCH and vFSB mod...

Super PI 32M pass FSB 500 MHz....vMCH @ 1.98 volt (2.09 at BIOS)

**da_h00k** · 02-14-2007, 04:49 AM

Now infinity too - those 975X is coming back

What cooling?

**Benny Lodewijk** · 02-14-2007, 04:51 AM

Originally Posted by da_h00k

Now infinity too - those 975X is coming back

What cooling?

NB cooled by Thermaltake Extreme Spirit II.

**M3kk** · 02-14-2007, 04:58 AM

What CPU?

**fredd_ber** · 02-14-2007, 07:37 AM

wow... greatz for om Benny

**Hilikoh** · 02-14-2007, 11:17 AM

Very Nice...
Im just cant pass 360FSB, and its not stable on 360, sucks.
can u come to my Messenger?
hilik_o@netvision.net.il

**Benny Lodewijk** · 02-14-2007, 06:17 PM

3DMARK 2001SE bench @ FSB 500 MHz

CPU-Z Validation : http://valid.x86-secret.com/show_oc?id=168385

**Skratch** · 02-14-2007, 09:36 PM

nice results

IM playin with the same board right now...Can you show me a link on the mods you did and what bios are you using?

I am at 408fsb now with the ram running at 510 with the nb voltage maxed in the bios at 1.75

either way I am gettting to the max with this chip because I am stuck with the stock multy.My goal is 3700mhz

I cant believe I got this board for 135 bucks...

**Benny Lodewijk** · 02-14-2007, 09:54 PM

Originally Posted by Skratch

nice results

IM playin with the same board right now...Can you show me a link on the mods you did and what bios are you using?

I am at 408fsb now with the ram running at 510 with the nb voltage maxed in the bios at 1.75

either way I am gettting to the max with this chip because I am stuck with the stock multy.My goal is 3700mhz

I cant believe I got this board for 135 bucks...

I see FSB 408 Mhz not 480 Mhz on your screenshot.

**Skratch** · 02-14-2007, 10:04 PM

Originally Posted by Benny Lodewijk

I see FSB 408 Mhz not 480 Mhz on your screenshot.

I did say I'm at 408 lol and My screen shot shows 408...My ram is running at 500+

My chip wont ever see 480 with the air cooling that I'm using

**Benny Lodewijk** · 02-14-2007, 10:08 PM

sorry my mistake

....try changing the NB cooling first.

**El Snorro** · 02-15-2007, 01:02 AM

I am playing with this board also.
Stock nb cooling+fan

E6600 28B @1,55v vcore TTBT cooled
2x1gb Gskill HZ 1:1 4-4-4-4
DFI infinity 975x vmch mod 1,84v
X1900GT

I already seen 460mhz fsb on multi 8.

**jozzy** · 02-15-2007, 04:33 PM

nice 480...! can i make the same mod @ my P5WDH-Dlx to hit 500 also?

symphy · 02-17-2007, 11:53 AM

Of course, there's a Vmch Mod for the P5W... Helped me a lot with watercooled northbridge...

Look here: http://www.xtremesystems.org/forums/...light=vmch+p5w

**KingThot** · 02-17-2007, 12:38 PM

Nice, this tempts me to try and find an infinity lying around on some B/S/T forum and try my hand at volt modding. Never have before but it looks like if I'm going to ever try it this board would lend a nice price/performance/gratification ratio.

**Zeus** · 02-17-2007, 12:56 PM

Originally Posted by symphy

Of course, there's a Vmch Mod for the P5W... Helped me a lot with watercooled northbridge...

Look here: http://www.xtremesystems.org/forums/...light=vmch+p5w

What FSB does it reach after the mod and what voltage does your DMM measure?

I measure only 1.3V at the mosfet's leg if i set 1.65V in bios.

symphy · 02-17-2007, 02:18 PM

Hm, i think you did something wrong. I did this mod more than 5 times... Functions very well. I reached about 475-485 MHz with 2,1 V and watercooling.

http://hardwarextreme.de/upload/revi...s/vMCH_Mod.jpg

Look at this picture, "VMCH Messpunkt" = "Vmch Readout"

**Zeus** · 02-17-2007, 02:36 PM

Originally Posted by symphy

Hm, i think you did something wrong. I did this mod more than 5 times... Functions very well. I reached about 475-485 MHz with 2,1 V and watercooling.

http://hardwarextreme.de/upload/revi...s/vMCH_Mod.jpg

Look at this picture, "VMCH Messpunkt" = "Vmch Readout"

Tried that point, still only 1.3V

I used the DC setting on my DMM, that the right one no?

The DMM must be ok, reads Vgpu just fine.

symphy · 02-17-2007, 02:41 PM

Yeah, DC is right...

Hm, no clue what happend to your board. It works fine i assume (beside the 1,3V problem)?

Recheck your soldering work, the error has to be somewhere at the soldered points i think...

**Zeus** · 02-18-2007, 01:42 AM

I will PM you, not to furher hijack this thread, sorry for doing so.

**El Snorro** · 03-09-2007, 11:23 AM

I did run 1m @ 483mhz fsb, this is less then 500mhz fsb and your's is 32m, but mine is at multi 9 and with just 1,9v vmch, no vfsb mod yet

My Setup:
E6600@ 1,58v vcore Single stage cooled
DFI Infinity 975X met Vmch mod @1,9v (NB air cooled)
2x1gb Gskill pc6400HZ @2,35v
Sapphire X1900XTX

**LittleDevil** · 03-09-2007, 01:08 PM

Not bad guys, any pics of setup?

regards

**erwinz** · 03-09-2007, 07:43 PM

Originally Posted by El Snorro

I did run 1m @ 483mhz fsb, this is less then 500mhz fsb and your's is 32m, but mine is at multi 9 and with just 1,9v vmch, no vfsb mod yet

My Setup:
E6600@ 1,58v vcore Single stage cooled
DFI Infinity 975X met Vmch mod @1,9v (NB air cooled)
2x1gb Gskill pc6400HZ @2,35v
Sapphire X1900XTX

very nice..

can you link the mod and what bios have you use??

**El Snorro** · 03-10-2007, 07:53 AM

Originally Posted by erwinz

very nice..

can you link the mod and what bios have you use??

Mods: http://www.xtremesystems.org/forums/...light=infinity

And the 12/01 bios:
http://www.lejabeach.com/DFI/dfiinfi...x/97TIDC01.zip

Here is also rest of the biosses:
http://www.lejabeach.com/DFI/dfiinfi...inity975x.html

**0verl0ad** · 03-12-2007, 12:26 PM

i tried the 12/01/06 Bios and was able to boot with 400mhz fsb and 1,75. But only one time. Now the screens stay black and the pc doesnt boot ...
Now i am at sth about 380mhz ...

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