Update on the F12 bios: the fan noise issue is completely fixed!

New thermal trip points (quiet coolsense profile):
62C: turn fan on (1400rpm)
55C: turn fan off

The system is 100% silent under normal use now. Kudos, HP!

HP has just released a new BIOS for this laptop (F12) that solves the fan issue. There's still no direct fan control but initial impressions are that fan noise in quiet mode is significantly reduce under normal use.

I will test more when I return home, where ambient noise is lower.

It is possible that GPU VID increases result in voltage increases.

Try the compiz benchmark plugin in compizconfig-settings-manager. I've been meaning to write simple GPU tester for linux, let me see if I can get something up and running quickly.

MOD EDIT: Per the Forum Posting Rules , please keep your images to a max of 640 pixels wide! Thanks! HELP!! I tried temperature 74，78，79. I failed! The cpu usage always 100%,the display is terrible too. I reset the EC values( press the power button for 10-15 seconds). How can i check that it is the...

Sorry for the double-post, I just wanted to add that I am using a SSD which indeed makes a difference noise-wise. Using the quiet fan profile, the HD used to be the biggest noise-maker under normal use. Now that I've swapped in the SSD, noise is back to the fan (which runs at 1500rpm at the lowest s...

i'm hoping StApostol has something for me :) I have! :) 3 simple steps: 1. In the rw-everything folder, create a text file with the following contents: >cpu 1 >wrmsr 0xc0010064 0x80000126 0x00003810 >wrmsr 0xc0010065 0x8000011A 0x00003C12 >wrmsr 0xc0010066 0x8000028C 0x00007430 >cpu 2 >wrmsr 0xc001...

did some more... now i'm really tired. max undervolt @1.6ghz that i could get was 0x4A which was 1.087v (5min orthos stable), any lower would result in an immediate lock. temps maxed out at an impressive 61C. for kicks i played some hd video, according to amd system monitor this stressed the gpu ab...

This tool can be used to read/write the MSRs on Windows: http://jacky5488.myweb.hinet.net/ It's clean (tested with on http://virustotal.com), run it as admin, select the MSR tab and click the "user defined" button (can't recall the name exactly, it's something like that) and add the addresses 0xC001...

Have you tried the following method? Patching DSDT Table Personally, no. I tried a part of it (decompiling the dsdt, searching for a fan speed in it) without finding anything, but then I don't understand much of what is in a dsdt anyway. Now, given that, with undervolting and the "quiet" profile, I...

I've managed to reach the following VIDs: P0: 0x38 P1: 0x3c P2: 0x3a with some headroom left. These are 15' prime95-stable (will do longer tests later on) and there is measurable improvement in load temperatures. Unfortunately, idle temperatures are markedly higher than on Win7: ~54C (linux 2.6.38) ...

Awesome, thanks!

Testing as we speak.

Wow, nice!

Could you please post how you did this? I'm interested but I have no idea how to proceed.

What values did you reach? Is there a measurable difference in load temps? I have a power meter so we could cross-reference our results (they won't be very accurate but better than nothing).

Great find! That could indeed do the trick (enable quiet coolsense profile). I'll have to take a closer look at the dsdt, there's lots of interesting stuff in there. (Please note if something goes wrong, just disconnect AC and battery and press the power button for ~10 seconds and it will restore to...

Your output looks identical to mine (temperatures notwithstanding). Try the dsdt route, as that's relatively simple and safe if it works. If not, you can reduce fan noise considerably using the EC trick - but I still don't know of a way to write that on Linux without recompiling a kernel (/proc/acpi...

You can achieve the same effect as coolsense by using a program such as rw-everything. I haven't been able to find something like that for linux yet - but something *should* be available (or possible to implement). See here, for instance: http://cateee.net/lkddb/web-lkddb/ACPI_EC_DEBUGFS.html If you...

Ok, after several more hours of testing I still wasn't able to control the fan directly. It looks as if the hardware has three preprogrammed fan response curves and allows you to choose one of those. I hoped that it would be possible to disable this and control the fan directly but even if this is p...

I've been poking around with an awesome (and dangerous) little program, called rw-everything and I've been able to uncover some more info on the external controller (EC) section. The fan has an on/off switch and there is a number of control bits that control the cooling profile (these are the ones u...

Unfortunately, the fan is not controlled through ACPI or AMD's drivers on this laptop. There is a WMI call that can be used to alter the cooling profile (quiet, normal, cool) and I've been able to use this to reimplement HP Coolsense - unfortunately no fine-grained fan control yet. Using the quiet p...

jhhoffma wrote:Gelpacks. It's been done. Look up "alleycat enclosure". Not exactly a ready-made solution but can be mounted with some work.

+1

This is as close to the holy grail as it gets.

The S-Flex fans are among the best out there, if you don't mind the price premium. Prefer the 1200- or 1600RPM versions over the 800RPM, as their motors will work at lower voltages and have a slightly smoother noise (the 800RPM motor emits a faint tick that can be heard under ~30cm). My main rig use...

A low rpm 80 fan might work better as a spot fan, beacuse 120 fans have too big a deadspot.

Excellent work!

I am going to copy this for my 24/7 server, I hope you don't mind?

This is not the actual construction because I updated to a Core 2, but you can get the idea. Sorry for the crappy balance, I have an exam tomorrow so it's the best I can do. Front side: http://users.ntua.gr/el03128/images/front.jpg Back side: http://users.ntua.gr/el03128/images/back.jpg You'll need ...

Yeah, it will probably work better if you blow the hot air up, rather than down.

Careful! If the Nforce4 MCP hits a certain temperature, it will start corrupting data silently during disk writes. It's not a cataclysmic effect, just a few bytes out of each GB, so it can go unnoticed for quite some time. I started seeing it on large torrent downloads first, during the verification...

Try clearing your CMOS. This usually helps when upgrading processors. If it doesn't work, boot with the e6300 and update your BIOS. If it still doesn't work, boot with the e6300, enter the bios and set a low multiplier and fsb (stock e6750 is 8x333, try 6x333 or 6x266). Set the voltage manually (1.3...

I'm using a Ninja Rev B on an E6750 with AS5. The results are as follows: Idle: 6x400 = 2400GHz, 1.187V, 23C (motherboard) or 37C (core). Ambient 22-23C. 8h Orthos Load (priority 9): 8x400 = 3200GHz, 1.325V, 55C (motherboard) or 67-68C (core). Ambient 24-26C, but I had two hard disks in the intake p...

They are all Sata drives and the mobo is in ACHI mode, its very odd though because they dont appear under the "Safetly remove" icon, and under the "optimize for performance, optimize for quick removal" screen optimize for quick removal is greyed out. Any ideas?. Updating the storage drivers might h...

Many (most?) plain sata ports can be turned into eSata with such an add-on. Unfortunately, some very old motherboards (think before eSata was born) may have problems with the more stringent eSata timing requirements. I don't know when eSata was introduced, but I'd assume around 2004, so if your mobo...

Just yesterday I moved my OS disk outside the case using eSata. Performance is the same as internal Sata, and the beast (old 160GB WD Caviar) is silenced at last. Even turned off AAM, for a bit of extra performance! You don't even need expensive parts. I'm going to build two alleycats as soon as I c...