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x61s L7500 overclock by installing dell 1705 wifi card

X60/X61 series specific matters only.
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afraidfuture
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Joined: Fri Aug 16, 2013 4:16 am
Location: Beijing, China

x61s L7500 overclock by installing dell 1705 wifi card

#1 Post by afraidfuture » Fri Dec 07, 2018 9:53 am

Although x61s with L7500 is pretty old machine, but it is very classic one, recently I were trying to do some search on the L7500 CPU overclock threads after replacement of SSD/Bios upgrade.
I found some interesting threads regarding somebody accidentally overclocked the CPU from 1.6g to 2.4g by changing the intel wifi card to dell 1506 wifi card.
I bought and installed dell 1506 card, initially I had hard time to boost the system with the original 667 DDR2, also this was mentioned from the thread, it was suggested to re-flash the SPD of the memory from 667/800 to 533. I followed the instruction to re-flash the memory to 533.

Now the X61s is stable at 2.2g to 2.4g, boost speed and operating speed got significant improvment, and also the heat/fan noise didn't get obvious increased, the right plam temp is improved a little compared with intel wifi card.

I am very satisfied with the upgrade.

(you need to upgrade bios before changing the wifi card)
I don't know how to attach a picture yet.Below is the change from CPU-Z reading.

FSB changed from 200 to 266
Core speed changed from 1.6g to 2.2/2.4g

other L7200/T8xxx also worked.
Last edited by afraidfuture on Fri Dec 07, 2018 11:58 am, edited 1 time in total.

afraidfuture
Posts: 16
Joined: Fri Aug 16, 2013 4:16 am
Location: Beijing, China

Re: x61s L7500 overclock by installing dell 1705 wifi card

#2 Post by afraidfuture » Fri Dec 07, 2018 9:56 am

Correction on the cotent:

I tried both dell 1705 and dell 1506 card, both worked the same.

axur-delmeria
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Re: x61s L7500 overclock by installing dell 1705 wifi card

#3 Post by axur-delmeria » Fri Dec 07, 2018 10:50 am

How does the Dell wifi card enable the FSB overclock?
Daily driver: X220 4291-C91 i7-2620M

Backup: X220 4291-P79 i5-2520M
Toy: X60F Core Solo U1300
In pieces: two retired but working X61Ts
RIP: 760XD 9546-U9E; X61 7676-A24; and a BOE-Hydis HV121P01-100 in failed SXGA+ mod
:cry:

afraidfuture
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Location: Beijing, China

Re: x61s L7500 overclock by installing dell 1705 wifi card

#4 Post by afraidfuture » Fri Dec 07, 2018 11:10 am

it is controversal still so far, it is belivered that two pin on dell card connected and the change may impact on cpu clock logic.
the reason is not 100% sure yet.
many people bought the dell1506/1705 using 2 bucks, give it a try, many SUCceed and show cpuz score。

667/800meory is not comparable,.but doengrade 533 momory
can siolve

afraidfuture
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Joined: Fri Aug 16, 2013 4:16 am
Location: Beijing, China

Re: x61s L7500 overclock by installing dell 1705 wifi card

#5 Post by afraidfuture » Fri Dec 07, 2018 11:27 am

not sure if it allowes to quote from other forum,please tell me if it is not allowed.

https://forum.51nb.com/thread-1654100-1-1.html

plenty of pictures/parts/modification.

Screamer
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Re: x61s L7500 overclock by installing dell 1705 wifi card

#6 Post by Screamer » Fri Dec 07, 2018 11:37 am

Don't worry, that is allowed. I don't see the forum's rules saying anything about linking to another forum, or quoting from another forum.
axur-delmeria wrote:
Fri Dec 07, 2018 10:50 am
How does the Dell wifi card enable the FSB overclock?
Apparently, it's some sort of a byproduct made from bridging pin 24 and pin 52 together on the Dell wireless adapter card. Just like what afraidfuture described, it makes sense.

afraidfuture
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Joined: Fri Aug 16, 2013 4:16 am
Location: Beijing, China

Re: x61s L7500 overclock by installing dell 1705 wifi card

#7 Post by afraidfuture » Fri Dec 07, 2018 11:46 am

that two pin you mnetioned should be the one discussed in the thread, i am very beginner of modification.
is there any simple explanation on this?

axur-delmeria
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Re: x61s L7500 overclock by installing dell 1705 wifi card

#8 Post by axur-delmeria » Fri Dec 07, 2018 1:23 pm

afraidfuture wrote:
Fri Dec 07, 2018 11:46 am
that two pin you mnetioned should be the one discussed in the thread, i am very beginner of modification.
is there any simple explanation on this?
There's an explanation in the thread posted by Screamer, specifically this post.
Daily driver: X220 4291-C91 i7-2620M

Backup: X220 4291-P79 i5-2520M
Toy: X60F Core Solo U1300
In pieces: two retired but working X61Ts
RIP: 760XD 9546-U9E; X61 7676-A24; and a BOE-Hydis HV121P01-100 in failed SXGA+ mod
:cry:

afraidfuture
Posts: 16
Joined: Fri Aug 16, 2013 4:16 am
Location: Beijing, China

Re: x61s L7500 overclock by installing dell 1705 wifi card

#9 Post by afraidfuture » Fri Dec 07, 2018 7:53 pm

Thanks for your reply, it explained detail, looks like if old intel wifi card weld two pins together, it can work the same way.
the dell wifi card heat performance is better than the intel wifi card.
Now the right palm is not headache anymore, change out the dell wifi card is worth the "2 bucks".

fri_night_in_ninsei
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Joined: Mon Jan 07, 2019 12:42 pm
Location: Great Neck, Nassau County, NY

Re: x61s L7500 overclock by installing dell 1705 wifi card

#10 Post by fri_night_in_ninsei » Mon Jan 07, 2019 2:40 pm

i would like to do this mod on my X61s. I get the pin connecting piece and the Dell wifi card. What else is needed to overclock? The OP mentioned an upgraded BIOS? Will this mod work with the Middleton BIOS? Other than some BIOS upgrade, what are the other steps, if any?

fri_night_in_ninsei
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Location: Great Neck, Nassau County, NY

Re: x61s L7500 overclock by installing dell 1705 wifi card

#11 Post by fri_night_in_ninsei » Mon Jan 07, 2019 5:00 pm

Also, how can I tell what MHZ the CPU is running at? I'm running Fedora Linux. Thanks.

wujstefan
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Re: x61s L7500 overclock by installing dell 1705 wifi card

#12 Post by wujstefan » Thu Jan 10, 2019 4:43 am

Wow. So much effect from so easy job. I'm getting a dell card to check it on mine X61 :D
Dailies:
X230 - travel / garage
W700 - workhorse
R600 (R500 mobo inside R60 chassis) - daily
600x w/i7 board - thing to admire
Collectibles:
T43, Z60t, G41, R30, R50e, R61i, A31p, T23
Under construction:
R52p, T22, A22m, R40, T30, Z61m

fri_night_in_ninsei
Posts: 6
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Location: Great Neck, Nassau County, NY

Re: x61s L7500 overclock by installing dell 1705 wifi card

#13 Post by fri_night_in_ninsei » Fri Jan 11, 2019 9:19 am

Ok here's my update: I tried this on both my X61 and X61s. Worked on the X61 not on the X61s.

Middleton BIOS
Dell DW1506
I happen to have 2Gb DIMMS that only go up to 533 MHz
Fedora Linux distro

X61 runs fine overclocked. X61s successfully overclocks but crashes often. I'm using the same RAM chips in both machines.

axur-delmeria
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Re: x61s L7500 overclock by installing dell 1705 wifi card

#14 Post by axur-delmeria » Fri Jan 11, 2019 2:14 pm

fri_night_in_ninsei wrote:
Fri Jan 11, 2019 9:19 am
X61 runs fine overclocked. X61s successfully overclocks but crashes often. I'm using the same RAM chips in both machines.
1. You can try increasing the voltage on the X61s.
2. Limit the clock speed (by setting a lower multiplier) to just slightly above the original speed. You'll still get a performance boost due to the faster bus clock and built-in graphics.
Daily driver: X220 4291-C91 i7-2620M

Backup: X220 4291-P79 i5-2520M
Toy: X60F Core Solo U1300
In pieces: two retired but working X61Ts
RIP: 760XD 9546-U9E; X61 7676-A24; and a BOE-Hydis HV121P01-100 in failed SXGA+ mod
:cry:

fri_night_in_ninsei
Posts: 6
Joined: Mon Jan 07, 2019 12:42 pm
Location: Great Neck, Nassau County, NY

Re: x61s L7500 overclock by installing dell 1705 wifi card

#15 Post by fri_night_in_ninsei » Fri Jan 11, 2019 5:00 pm

Thanks. How do I limit the clock speed?

axur-delmeria
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Posts: 2023
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Location: Metro Manila, Philippines

Re: x61s L7500 overclock by installing dell 1705 wifi card

#16 Post by axur-delmeria » Sat Jan 12, 2019 2:48 am

You can set in via Windows:

Image

Alternatively, you can use RMClock or Throttlestop for greater control.
Daily driver: X220 4291-C91 i7-2620M

Backup: X220 4291-P79 i5-2520M
Toy: X60F Core Solo U1300
In pieces: two retired but working X61Ts
RIP: 760XD 9546-U9E; X61 7676-A24; and a BOE-Hydis HV121P01-100 in failed SXGA+ mod
:cry:

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