F5F Stay Refreshed Power Users Overclocking How can I possibly increase the clock speed of a Pentium T4300?

How can I possibly increase the clock speed of a Pentium T4300?

How can I possibly increase the clock speed of a Pentium T4300?

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Julian_Q
Junior Member
14
06-30-2025, 07:27 PM
#1
So, hello everyone, I own an older Acer Aspire 5738ZG (specs: Intel Pentium T4100 @ 2.10Ghz, NVidia GForce GM105M) and wanted to try overclocking the CPU.
Since it's a laptop, I'm aware that thermal issues are a concern, but I just need a performance boost.
Being a locked CPU, I attempted to adjust the FSB settings. Unfortunately, it didn’t work well.
Finding the exact PLL name was challenging, but I managed to locate it on a website (laptop-schematics.com/). It’s labeled as ICS9LPRS365B.
If you're doing this, you should change just one parameter and watch for changes—like seeing white bars across the screen.
Also, the PLL used in setfsb has additional letters, so it might be ICS9LPRS365B.
GLF
What steps should I follow to overclock the FSB?
The pictures are available here: https://imgur.com/a/GgAFJ5z and view here: https://imgur.com/a/GgAFJ5z
J
Julian_Q
06-30-2025, 07:27 PM #1

So, hello everyone, I own an older Acer Aspire 5738ZG (specs: Intel Pentium T4100 @ 2.10Ghz, NVidia GForce GM105M) and wanted to try overclocking the CPU.
Since it's a laptop, I'm aware that thermal issues are a concern, but I just need a performance boost.
Being a locked CPU, I attempted to adjust the FSB settings. Unfortunately, it didn’t work well.
Finding the exact PLL name was challenging, but I managed to locate it on a website (laptop-schematics.com/). It’s labeled as ICS9LPRS365B.
If you're doing this, you should change just one parameter and watch for changes—like seeing white bars across the screen.
Also, the PLL used in setfsb has additional letters, so it might be ICS9LPRS365B.
GLF
What steps should I follow to overclock the FSB?
The pictures are available here: https://imgur.com/a/GgAFJ5z and view here: https://imgur.com/a/GgAFJ5z

J
jonleflar
Member
181
07-05-2025, 04:54 AM
#2
You can't(cause locked), and it's not worth it. Plus, if you could OC it, and if you're already having problems with heat, OC'ing generates even more heat.
You'd get more performance switching the hdd to a ssd over OC the cpu(if you could) anyway.
Enable high performance in windows power plan - but I believe you're forced to keep it plugged in for that, otherwise it automatically switches back to balanced on battery.
Not much else you can do to salvage that laptop.
J
jonleflar
07-05-2025, 04:54 AM #2

You can't(cause locked), and it's not worth it. Plus, if you could OC it, and if you're already having problems with heat, OC'ing generates even more heat.
You'd get more performance switching the hdd to a ssd over OC the cpu(if you could) anyway.
Enable high performance in windows power plan - but I believe you're forced to keep it plugged in for that, otherwise it automatically switches back to balanced on battery.
Not much else you can do to salvage that laptop.

T
TavrosNitram
Junior Member
17
07-05-2025, 06:52 AM
#3
But even at 200Mhz it's not feasible? Under full load, the CPU reaches 72°C, which leaves a little room, I think.
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TavrosNitram
07-05-2025, 06:52 AM #3

But even at 200Mhz it's not feasible? Under full load, the CPU reaches 72°C, which leaves a little room, I think.

T
t80skull
Member
59
07-05-2025, 08:48 AM
#4
They won't even catch a 200mhz change. The CPU is just too slow (2.1ghz). A 3.0ghz would be noticeable, but that's not possible with that chip.
Swapping the HDD for an SSD would still improve performance, and adjusting settings in Windows Power Plan as discussed earlier could help.
It's better to save up for something newer, I think.
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t80skull
07-05-2025, 08:48 AM #4

They won't even catch a 200mhz change. The CPU is just too slow (2.1ghz). A 3.0ghz would be noticeable, but that's not possible with that chip.
Swapping the HDD for an SSD would still improve performance, and adjusting settings in Windows Power Plan as discussed earlier could help.
It's better to save up for something newer, I think.

L
LeandroArtz
Member
138
07-10-2025, 03:30 PM
#5
Okay, thanks for the information, I was just curious what could I do before killing it =P.
Btw, this isn't my main system, my main is a i3-8100 paired with a rx560 4gb
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LeandroArtz
07-10-2025, 03:30 PM #5

Okay, thanks for the information, I was just curious what could I do before killing it =P.
Btw, this isn't my main system, my main is a i3-8100 paired with a rx560 4gb

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iDoNotEvenLift
Posting Freak
936
07-10-2025, 03:51 PM
#6
If you're trying to overclock and IntelXTU isn't functioning, consider using ThrottleStop. I'm using it to undervolt my CPU, which is locked, so raising the voltage should help achieve overclocking. Keep in mind you'll also need to set up a task in Windows to avoid opening ThrottleStop each time you restart your laptop—it's straightforward.
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iDoNotEvenLift
07-10-2025, 03:51 PM #6

If you're trying to overclock and IntelXTU isn't functioning, consider using ThrottleStop. I'm using it to undervolt my CPU, which is locked, so raising the voltage should help achieve overclocking. Keep in mind you'll also need to set up a task in Windows to avoid opening ThrottleStop each time you restart your laptop—it's straightforward.

S
SkeyeHunter
Member
71
07-16-2025, 04:30 PM
#7
No success, prevents overvoltage. Still appreciate it.
S
SkeyeHunter
07-16-2025, 04:30 PM #7

No success, prevents overvoltage. Still appreciate it.