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Dell Dimension 4700 CPU upgrade
Hi, I have a dell dimension 4700 and im looking to upgrade my cpu. Inside currently is the pentium 4 530 (LGA 775). Im looking to get the 550 which is rated at 3.4ghz but could I go higher and would this cause heat issues? And one last thing the fan in the green shroud at the back of the case is blowing in, is this normal as my case is warm to the touch?
shesagordie
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May 15th, 2011 09:00
illegalluggage
There is THIS discussion about the orientation of the Dimension 4700 case fan, the posts by Carl4286 should be of interest to you.
Personally I would think that a case should discharge out of the case, but the 4700 had two different types of fans and shrouds installed, one discharging out the case and the other type, pulling air into the case.
You would need to check which type of green plastic shroud was install in your 4700.
Bev.
shesagordie
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May 15th, 2011 14:00
illegalluggage
:emotion-21:
Bev.
illegalluggage
2 Posts
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May 15th, 2011 14:00
Ok thanks i'll take a look
salvia
11 Posts
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July 10th, 2011 07:00
The Dimension 4700 uses the Intel 915G Express Chipset therefore it should support most if not all of these CPUs under Compatible Products, provided the BIOS has the CPU microcode for the new CPU.
Intel CPU microcode this tool to extract the CPU microcodes from microcode.dat
jj
0F29
0F25
0Fkopkopkopkopkopkop
13
0F30
0F31
0F
32
0F33
0F37
0F34
0F41
0F49
0F60
0F61
0F62
0F43
ydgdfg
0F4A
jz1jz1
3 Posts
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January 31st, 2012 06:00
@salvia- I have the sl96h which is not on the list. I have downloaded microcode you suggested but cannot figure out how to use it. Could you add more detailed steps please? Thanks
jz1jz1
3 Posts
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January 31st, 2012 06:00
@salvia- I have the sl96h which is not on the list. I have downloaded microcode you suggested but cannot figure out how to use it. Could you add more detailed steps please? Thanks
Jaxom5
73 Posts
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January 31st, 2012 19:00
illegalluggage
I purchased a P4 670, Sspec SL7Z3, running @ 3.8 GHz, L2 cache of 2MB. I had already upgraded to the A10 BIOS a while back so when I put the 670 in, reapplying Thermal paste to both processor and heatsink, my 4700 fired right up and has not given any problems. I had also reversed the fan last year and that cooled the case temp down alot.
jz1jz1
3 Posts
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February 1st, 2012 20:00
SL7Z3 is 0F43h, see above list - of course A10 will support it. But I have the SL96H which is 0F64 which is not on the list
downtimer
1 Message
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February 13th, 2012 13:00
Salvia, can you please give us some clues as to how you modified the cpu microcode in the bios? What utilities did you use? Or, even better, could you upload your modified bios to rapidshare or something? Thanks!!
zthunderdome
1 Message
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September 1st, 2012 03:00
Have heard that earlier 4700 had fan blow in... also overheat issues> i reversed fan> takes like 5 min..no tools needed > just b careful .. also installed aux fan on removable sidecover screen .. use yellow+ & black- 12vdc or red+ & black- 5vdc ... get or make adapter & or splitter 2 plug into device power cable socket ... probably for cd/dvd drives ... depends on what fan used > re: noise & air flow .. now puter exhausts impressive amount of heat ... i used old power supply fan > enlarged 4 holes & used screws frm ps fan > spaced fan out less than 1/8 in w plastic washers ( milk carton & scissors & hole puncher ) very quiet & very cool now
nerdydaddyo
1 Message
0
September 11th, 2012 18:00
Is there any way you can email the biosupdate_d4700a10.rar file versus using a host that requires purchases in order to receive it? Or maybe a YouSendIt link? Is it legitimate? I was hoping to upgrade to a P4 Cedar Mill 661 myself. Thanks.
smarschany
1 Message
0
January 18th, 2013 18:00
Hi. would you be able to upload photos of what the sidecover looks like?
Also trying to upgrade from 2.8 to 3.6 or 3.8, afraid of consequences from heat issues.
Thanks.
Smarschany
Walt939
6 Posts
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March 18th, 2017 12:00
I was among the 4700 owners who were surprised to find the CPU fan blowing into the case rather than out. However it's easy to find advantages for doing so:
1. Outside the case air is perhaps 30 degrees F. cooler. That means it keeps the CPU cooler and that'll be particularly so with smaller heatsinks and higher power CPUs -- it appears a variety of both were used in the 4700 machines.
Case temperature is a much less important issue than CPU temperature. Outside air is the best way to control CPU temp ON MACHINES THAT CONTROL THE FAN SPEED FROM THE CPU rather than from a thermistor mounted on the fan. (In other words, if you have a machine that blows air out, don't turn that fan around unless you're sure the fan speed control is from the CPU.)
2. When all the fans blow out, the case is under suction and it pulls in air through every hole and crack; many are low on the machine. In other words you are running a vacuum cleaner and anyone who has opened a machine that has run a couple of years knows that most of the dust that comes in, stays. Places where dirt collects include your CPU heat sink. This Is Not Good.
I was amazed at how clean the inside of my (used) 4700 was, yet there were telltail signs that it had not been cleaned out. Then I realized the CPU fan blew inward. Not only does that mean that the case doesn't ***, the CPU fan air is taken more than 6" above the base of the machine and the air there is cleaner.
Bottom line: The engineering on these machines looks to this engineer to be absolutely first rate. I would NOT reverse a fan on a machine that is as configured at the factory.
247
8 Posts
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May 11th, 2017 16:00
If anyone still wants that modified (0F65 CPU microcode (for the Pentium 4 661 (SL9KD (D0))) and SLIC 2.1 inserted) D4700A10 BIOS then here it is.
Here is another link to it.
Enjoy!
1 Attachment
D4700A10.rar
247
8 Posts
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May 11th, 2017 21:00
https://www.virustotal.com/en/file/fa42e07beeaed08735f7359c1d36c8499bf14c57fd9587aff5943cd4f8b57900/analysis/1495140948/
SpeedStep it's not malware it's simply the D4700A10 BIOS with 2 mods/modifications - SLIC v2.1 and the 0F65 CPU microcode were inserted/replaced. It was successfully modded thanks to a few people on the mydigitallife forums some years ago. I flashed it on both of my 4700's and I've had no issues since.
I installed a Pentium 4 HT 661, 3.6 GHz (0F65h SL9KD D0) to replace the Pentium 4 HT 520, 2.8 GHz that was originally installed. For me it didn't give an alert and hang during POST with the P4 661 installed without the 0F65h CPU µcode in the BIOS but I was getting random BSOD/stop errors in XP and it stated at the bottom of all of them that the BIOS didn't contain CPU microcode for the CPU.
The Pentium 4 HT 661 (0F65h SL9KD D0) is a newer CPU (Cedar Mill (65 nm)) with a TDP of only 65 W (the earlier Cedar Mill models with B1 and C1 steppings have a TDP of 86 W) so it uses significantly less power (65 W vs 115 W) and has a lower heat output than the older 90 nm Prescott (PresHOT) CPUs. For more on that see https://wikipedia.org/wiki/Pentium_4#Cedar_Mill & https://wikipedia.org/wiki/List_of_Intel_Pentium_4_microprocessors#Cedar_Mill_.2865_nm.29
It'll also allow the installation and use of 64-bit Windows 10 (as well as 32-bit of course) as it supports CMPXCHG16b, PrefetchW, and LAHF/SAHF.
After this CPU is installed, a new BIOS option (may not be new to all, depending on the old CPU model - my old P4 520 didn't have the XD bit/NX bit or Intel 64/x86-64 so it was a new option in mine) should appear in the BIOS Setup under "Security" called "Execute Disable" and Execute Disable Memory Protection Technology which is also known as NX bit (No eXecute bit), XD bit (eXecute Disable bit), EDB (Execute Disabled Bit), Execute Disabled Memory Protection, EVP (Enhanced Virus Protection), XN (eXecute Never), DEP (Data Execution Prevention), and No Execute Memory Protect. Turn it On if it's Off before installing Windows 10 as it has been a hard coded requirement in Windows since the original Windows 8 was released. The factory default setting is On.