Overclock.net › Forums › Intel › Intel CPUs › What to expect out of a Q8400?
New Posts  All Forums:Forum Nav:

What to expect out of a Q8400?

post #1 of 34
Thread Starter 
What kind of clock rates can i expect out of a Q8400 on a Gigabyte GA-P45T-ES3G?

On stock cooler for now, I wanna get about 3GHz out of it on stock cooler at least. How far can i get on this chip without changing the vcore? I wanna know because I'm getting these soon (Plus a GTX 460)

(If you ask why I'm getting a dead socket is because i already have a 775 machine and upgrading is a lot easier than building )

So yeah, thanks in advance!
post #2 of 34
If you don't have an 8400 yet, I'd recommend going for a Q6xxx or a Q9xxx over the 8xxx chips. The 8 chips have low cache and low multipliers - you'll see a much better overclock on the others. Example - I took my Q6600 to 3.5 GHz on stock voltage whereas the best I've seen on a Q8400 is around 3.1 GHz at stock v.

Welcome to OCN, by the way!
post #3 of 34
a Q8400's stock clock is 2.66ghz, so without increasing the vcore it might be possible to get it to 2.8-2.9ghz if you get a good chip. however i know these chips can get pretty warm when overclocked (i own a Q9400) and the stock heatsink wont take you much higher than 3ghz without heat issues (i think its more the Q8000 series quads come with a really bad intel heatsink, worse than normal). when you get a better heatsink you may be able to get a good overclock aroung 3.6ghz with some increases in voltage

@Broseidon: id agree a Q9000 chip would be better, and Q6000 chips are good overclockers but a Q6600 is a really hot chip, also being 64nm it uses more vcore meaning more heat.

if you can get your hands on a good Q9400 they cet to 4ghz quite easy
Edited by Kal777 - 10/26/11 at 4:37pm
Finally Finished!
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 3930K Batch: 3135B495T Gigabyte X79 UD7 GTX 570 3-way SLi Corsair Vengeance 1600mhz CL9 
Hard DriveCoolingOSMonitor
60GB OCZ Vertex II / 3x 500GB Samsung Spinpoint EK Supreme HF Nickel, EK DCP4.0, Stealth GT 360... Windows 7 Ult 64bit Acer 22" G225HQ 
KeyboardPowerCaseMouse
Razor Lacosa Mirror Edition Silverstone Strider 1500w  Aerocool X-Preditor  CM Storm Sentinel Advanced 
Mouse Pad
Razer Goliathus Speed edition 
  hide details  
Reply
Finally Finished!
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 3930K Batch: 3135B495T Gigabyte X79 UD7 GTX 570 3-way SLi Corsair Vengeance 1600mhz CL9 
Hard DriveCoolingOSMonitor
60GB OCZ Vertex II / 3x 500GB Samsung Spinpoint EK Supreme HF Nickel, EK DCP4.0, Stealth GT 360... Windows 7 Ult 64bit Acer 22" G225HQ 
KeyboardPowerCaseMouse
Razor Lacosa Mirror Edition Silverstone Strider 1500w  Aerocool X-Preditor  CM Storm Sentinel Advanced 
Mouse Pad
Razer Goliathus Speed edition 
  hide details  
Reply
post #4 of 34
Thread Starter 
Quote:
Originally Posted by Broseidon View Post
If you don't have an 8400 yet, I'd recommend going for a Q6xxx or a Q9xxx over the 8xxx chips. The 8 chips have low cache and low multipliers - you'll see a much better overclock on the others. Example - I took my Q6600 to 3.5 GHz on stock voltage whereas the best I've seen on a Q8400 is around 3.1 GHz at stock v.

Welcome to OCN, by the way!
Ty for the welcome.

I have decided for the Q8400 because it is the most available (new). Q6600 overclocks better, yes but i am just looking for a 3-3.2 GHz overclock, nothing major. Q6600 probably performs better when clocked at higher speeds but @ stock the Q8400 outshines the Q6600. I'd go with a Q9400 but i can't find a new one on Ebay by a reputable seller with a 30 day return policy. Most of them are OEM and used. I would just get a Q9550 on newegg but they are too expensive. And same with all the Q6600s on Ebay. But yeah, that's my reasoning for a Q8400.

@Kal I would but they aren't really available
Yeah, I know stock heatsink is crap but I'll have to go with it because a hyper 212 plus ain't fitting in my case, I'll probably get a new case though because of ATX mobo and GTX 460. We'll see if it fits. If it does not fit I'll def pick up a 212+ with the case.
Edited by Despair - 10/26/11 at 4:52pm
post #5 of 34
You've got alot of cons to this setup.

#1: Q8xxx series struggles to hit even 3.0 on most good boards. The UD3 series can get them 3.6-4.0, and that's about the only board that can.

#2: Your ES3G has crummy power phases. And they aren't heatsinked. Even if it has the GTL and skew settings that make the UD3 series so great, it doesn't have the power delivery for a quad.

You can give it a go, but even if you get 3.0 your MOSFETs or a cap might go up in smoke.
More Cores
(20 items)
 
 
SFF: HADRON
(10 items)
 
CPUMotherboardGraphicsGraphics
i7 3930K @ 4.8Ghz offset ASrock X79 Extreme6/GB EVGA GTX680 FTW with EK waterblock EVGA GTX650 for PhysX 
RAMHard DriveHard DriveHard Drive
G-Skill 4x4GB DDR3 1866 8-9-9-24@1.5V Samsung 840 Pro 128GB Agility 3 240GB x2 RAID 0 WD 500GB X2 RAID 0 
CoolingCoolingCoolingCooling
XSPC Raystorm XSPC Dual Bay reservoir with Alphacool variable... Alphacool NexXxoS UT60 Full Copper Triple 120mm... EK GTX680 FTW waterblock 
OSMonitorPowerCase
Windows 7 64 bit Ultimate HP tSS-25X11LED 25" 1080p PC Power&Cooling Silentpower 910W Xigmatek Elysium 
MouseMouse PadAudioAudio
Razer Deathadder 3500 Rocketfish Creative Sound Core3D Logitech Z5300 
CPUMotherboardGraphicsRAM
960T unlocked to X6 ASUS M4A79XTD Evo Sapphire HD6870 1GB 2x2GB Ripjaws 7-8-7-24 F3-12800CL7D-4GBRM  
Hard DriveHard DriveOptical DriveCooling
Crucial M4 128GB WD 320GB HDD Lite-On DVD-RW Corsair H100 
OSPowerCase
Win 7 x64 Ultimate OCZ Stealthstream 600W HAF XB 
CPUMotherboardGraphicsRAM
3570K P8Z77-I MSI 560 Ti TF2 Samsung 20nm 
Hard DriveCoolingOSMonitor
Crucial M500 Kuhler 620 Windows 7 x64 52" Samsung LED TV 
CaseAudio
EVGA Hadron Air Denon receiver/ Polk audio 
  hide details  
Reply
More Cores
(20 items)
 
 
SFF: HADRON
(10 items)
 
CPUMotherboardGraphicsGraphics
i7 3930K @ 4.8Ghz offset ASrock X79 Extreme6/GB EVGA GTX680 FTW with EK waterblock EVGA GTX650 for PhysX 
RAMHard DriveHard DriveHard Drive
G-Skill 4x4GB DDR3 1866 8-9-9-24@1.5V Samsung 840 Pro 128GB Agility 3 240GB x2 RAID 0 WD 500GB X2 RAID 0 
CoolingCoolingCoolingCooling
XSPC Raystorm XSPC Dual Bay reservoir with Alphacool variable... Alphacool NexXxoS UT60 Full Copper Triple 120mm... EK GTX680 FTW waterblock 
OSMonitorPowerCase
Windows 7 64 bit Ultimate HP tSS-25X11LED 25" 1080p PC Power&Cooling Silentpower 910W Xigmatek Elysium 
MouseMouse PadAudioAudio
Razer Deathadder 3500 Rocketfish Creative Sound Core3D Logitech Z5300 
CPUMotherboardGraphicsRAM
960T unlocked to X6 ASUS M4A79XTD Evo Sapphire HD6870 1GB 2x2GB Ripjaws 7-8-7-24 F3-12800CL7D-4GBRM  
Hard DriveHard DriveOptical DriveCooling
Crucial M4 128GB WD 320GB HDD Lite-On DVD-RW Corsair H100 
OSPowerCase
Win 7 x64 Ultimate OCZ Stealthstream 600W HAF XB 
CPUMotherboardGraphicsRAM
3570K P8Z77-I MSI 560 Ti TF2 Samsung 20nm 
Hard DriveCoolingOSMonitor
Crucial M500 Kuhler 620 Windows 7 x64 52" Samsung LED TV 
CaseAudio
EVGA Hadron Air Denon receiver/ Polk audio 
  hide details  
Reply
post #6 of 34
Thread Starter 
Well, yes, but coming from an E3200 i think any quad is an upgrade at this point, especially in games. I don't really know any good mobos for 775 except the chipsets.... and that was the only pxx on newegg. And i can't find a P5Q deluxe anywhere. Can you guys recommend a good 775 mobo i can find? Only good one i know one is the p5q and i can't find it anywhere. Oh and that mobo can't be that bad. I hit 3.4 Ghz stable on my msi g31tm-p21 with my E3200 and all i can change is FSB, can't change vcore, multiplier, nothing. Only ram ratio and fsb
Edited by Despair - 10/26/11 at 6:04pm
post #7 of 34
Quote:
Originally Posted by 2thAche View Post
You've got alot of cons to this setup.

#1: Q8xxx series struggles to hit even 3.0 on most good boards. The UD3 series can get them 3.6-4.0, and that's about the only board that can.

#2: Your ES3G has crummy power phases. And they aren't heatsinked. Even if it has the GTL and skew settings that make the UD3 series so great, it doesn't have the power delivery for a quad.

You can give it a go, but even if you get 3.0 your MOSFETs or a cap might go up in smoke.
Agree with #1. I just got this free setup and I cannot get the FSB over 400. Upped voltages with no significant changes. Can't get it to post most of the time. At the moment, I'm sittin on 3.2 Ghz, with a 1600FSB and its stuggling to stay cool (mid 60's), failed Prime on 1.28V within 5mins. Upped to 1.45V and was gettin in the 70's for heat. Brought it back down to 1.3xxish (dont remember) and im getting mid 60s and lot longer stability..We'll keep tweakin for sure! Good luck.
New SkO0l
(12 items)
 
Old skool
(14 items)
 
Turbo V6
(11 items)
 
CPUMotherboardGraphicsRAM
I3570K - 4.4GhZ  Asrock z77 Extreme 4 Nvidia GTX 480's SLI 2x4GB Gskill Sniper 2133 
Hard DriveCoolingOSMonitor
Mushkin 60GB SSD Chronos + 250GB mirrored Thermaltake Frio + Arctic Silver Win7 64 Bit 2 27" Asus and Planar 
KeyboardPowerCaseMouse
Tt Esports MekaG (Cherry Blacks) Thermaltake Toughpower XT775 Armor Revo Logitech G500 
CPUMotherboardGraphicsRAM
Q8400 EVGA 750i FTW SLI Evga GTx 260 GSkill 4GB 800 
Hard DriveOptical DriveCoolingOS
Seagate Perpendicular 320G, Raid 0 DVDRW Big Typhoon Win7 64 
MonitorKeyboardPowerCase
Dual 22"s Saitek Thermaltake Tr2550 Armor 
Mouse
G5 
MotherboardGraphicsHard DriveCooling
ASUS P5B-E EVga Seagate Swiftech H20 
OSMonitorKeyboardPower
XP 32bit Envision 22" G15 Thermaltake 550W Tr2 
CaseMouseAudio
Thermaltake Armor G5 Soundblaster XFi-XtremeGamer 
  hide details  
Reply
New SkO0l
(12 items)
 
Old skool
(14 items)
 
Turbo V6
(11 items)
 
CPUMotherboardGraphicsRAM
I3570K - 4.4GhZ  Asrock z77 Extreme 4 Nvidia GTX 480's SLI 2x4GB Gskill Sniper 2133 
Hard DriveCoolingOSMonitor
Mushkin 60GB SSD Chronos + 250GB mirrored Thermaltake Frio + Arctic Silver Win7 64 Bit 2 27" Asus and Planar 
KeyboardPowerCaseMouse
Tt Esports MekaG (Cherry Blacks) Thermaltake Toughpower XT775 Armor Revo Logitech G500 
CPUMotherboardGraphicsRAM
Q8400 EVGA 750i FTW SLI Evga GTx 260 GSkill 4GB 800 
Hard DriveOptical DriveCoolingOS
Seagate Perpendicular 320G, Raid 0 DVDRW Big Typhoon Win7 64 
MonitorKeyboardPowerCase
Dual 22"s Saitek Thermaltake Tr2550 Armor 
Mouse
G5 
MotherboardGraphicsHard DriveCooling
ASUS P5B-E EVga Seagate Swiftech H20 
OSMonitorKeyboardPower
XP 32bit Envision 22" G15 Thermaltake 550W Tr2 
CaseMouseAudio
Thermaltake Armor G5 Soundblaster XFi-XtremeGamer 
  hide details  
Reply
post #8 of 34
i had a q8200 which is pretty much the same as the q8400 with 1x less multi. it was a ***** to overclock, even with my DFI Lanparty board which normally reaches over 500fsb with other cpus. it just would not go over 400fsb stable. like mentioned above, even with a gigabyte ud3p, you're gonna have a tough time getting anything over 3Ghz, and even then, its not going to be that fast of a cpu. with your board, youd be lucky to reach 3-3.1 stable.

get an e8 or q6/q9 series cpu instead.
Edited by Spade616 - 10/26/11 at 8:36pm
Medschool Rig
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 2500K @ 4.3GHz, stock volts Gigabyte Z77M-D3H rev1.1 Sapphire R9 290X Tri-X OC 4GB 8GB (2x4GB) G.Skill Ripjaws X DDR3 1600MHz CL9 
Hard DriveOptical DriveCoolingOS
WD 320GB Blue, 640GB Black, 2TB Green LG Lightscribe Cooler Master Hyper 212X Windows 7 Ultimate x64 
MonitorKeyboardPowerCase
Samsung 2233sw 22" 1080p Razer Blackwidow Tournament Edition orange switch Seasonic X460 Gold Antec 300 
MouseMouse Pad
Logitech G502 Proteus Core Dragon War Friction Extended size 
  hide details  
Reply
Medschool Rig
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 2500K @ 4.3GHz, stock volts Gigabyte Z77M-D3H rev1.1 Sapphire R9 290X Tri-X OC 4GB 8GB (2x4GB) G.Skill Ripjaws X DDR3 1600MHz CL9 
Hard DriveOptical DriveCoolingOS
WD 320GB Blue, 640GB Black, 2TB Green LG Lightscribe Cooler Master Hyper 212X Windows 7 Ultimate x64 
MonitorKeyboardPowerCase
Samsung 2233sw 22" 1080p Razer Blackwidow Tournament Edition orange switch Seasonic X460 Gold Antec 300 
MouseMouse Pad
Logitech G502 Proteus Core Dragon War Friction Extended size 
  hide details  
Reply
post #9 of 34
Thread Starter 
Well, I can't find a new in the box Q6600 for **** and i don't want a used one. Now i know why there are so many new Q8400s still on the market . But it's pretty much all I'm gonna able to afford lol...a Q8400 is what I'm gonna have to settle with. I'll be happy with 3GHz I guess. Is Q9505 worth it? It's listed on newegg.
post #10 of 34
Thread Starter 
What about

http://www.ebay.com/itm/ASUS-P5Q-E-I...item3f0f0f7419

+

Q8400

+

Good HSF

= 3.6 ghz?

My main goal is to get at least 1ghz out of every chip i get,
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Intel CPUs
Overclock.net › Forums › Intel › Intel CPUs › What to expect out of a Q8400?